Move qemuGetProcessInfo and qemuGetSchedInfo methods to util and share them with ch driver. Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/libvirt_private.syms | 2 + src/qemu/qemu_driver.c | 116 ++------------------------------------- src/util/virprocess.c | 108 ++++++++++++++++++++++++++++++++++++ src/util/virprocess.h | 5 ++ 4 files changed, 120 insertions(+), 111 deletions(-) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index da27ee7b53..56adc192cd 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -3101,8 +3101,10 @@ virProcessGetAffinity; virProcessGetMaxMemLock; virProcessGetNamespaces; virProcessGetPids; +virProcessGetSchedInfo; virProcessGetStartTime; virProcessGetStat; +virProcessGetStatInfo; virProcessGroupGet; virProcessGroupKill; virProcessKill; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index e444ad2d45..ba3efef42b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1317,113 +1317,6 @@ qemuGetSchedstatDelay(unsigned long long *cpudelay, return 0; } - -static int -qemuGetSchedInfo(unsigned long long *cpuWait, - pid_t pid, pid_t tid) -{ - g_autofree char *proc = NULL; - g_autofree char *data = NULL; - g_auto(GStrv) lines = NULL; - size_t i; - double val; - - *cpuWait = 0; - - /* In general, we cannot assume pid_t fits in int; but /proc parsing - * is specific to Linux where int works fine. */ - if (tid) - proc = g_strdup_printf("/proc/%d/task/%d/sched", (int)pid, (int)tid); - else - proc = g_strdup_printf("/proc/%d/sched", (int)pid); - if (!proc) - return -1; - - /* The file is not guaranteed to exist (needs CONFIG_SCHED_DEBUG) */ - if (access(proc, R_OK) < 0) { - return 0; - } - - if (virFileReadAll(proc, (1<<16), &data) < 0) - return -1; - - lines = g_strsplit(data, "\n", 0); - if (!lines) - return -1; - - for (i = 0; lines[i] != NULL; i++) { - const char *line = lines[i]; - - /* Needs CONFIG_SCHEDSTATS. The second check - * is the old name the kernel used in past */ - if (STRPREFIX(line, "se.statistics.wait_sum") || - STRPREFIX(line, "se.wait_sum")) { - line = strchr(line, ':'); - if (!line) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Missing separator in sched info '%s'"), - lines[i]); - return -1; - } - line++; - while (*line == ' ') - line++; - - if (virStrToDouble(line, NULL, &val) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Unable to parse sched info value '%s'"), - line); - return -1; - } - - *cpuWait = (unsigned long long)(val * 1000000); - break; - } - } - - return 0; -} - - -static int -qemuGetProcessInfo(unsigned long long *cpuTime, int *lastCpu, long *vm_rss, - pid_t pid, pid_t tid) -{ - g_auto(GStrv) proc_stat = virProcessGetStat(pid, tid); - unsigned long long usertime = 0, systime = 0; - long rss = 0; - int cpu = 0; - - if (!proc_stat || - virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_UTIME], NULL, 10, &usertime) < 0 || - virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_STIME], NULL, 10, &systime) < 0 || - virStrToLong_l(proc_stat[VIR_PROCESS_STAT_RSS], NULL, 10, &rss) < 0 || - virStrToLong_i(proc_stat[VIR_PROCESS_STAT_PROCESSOR], NULL, 10, &cpu) < 0) { - VIR_WARN("cannot parse process status data"); - } - - /* We got jiffies - * We want nanoseconds - * _SC_CLK_TCK is jiffies per second - * So calculate thus.... - */ - if (cpuTime) - *cpuTime = 1000ull * 1000ull * 1000ull * (usertime + systime) - / (unsigned long long)sysconf(_SC_CLK_TCK); - if (lastCpu) - *lastCpu = cpu; - - if (vm_rss) - *vm_rss = rss * virGetSystemPageSizeKB(); - - - VIR_DEBUG("Got status for %d/%d user=%llu sys=%llu cpu=%d rss=%ld", - (int)pid, tid, usertime, systime, cpu, rss); - - return 0; -} - - static int qemuDomainHelperGetVcpus(virDomainObj *vm, virVcpuInfoPtr info, @@ -1463,7 +1356,7 @@ qemuDomainHelperGetVcpus(virDomainObj *vm, vcpuinfo->number = i; vcpuinfo->state = VIR_VCPU_RUNNING; - if (qemuGetProcessInfo(&vcpuinfo->cpuTime, + if (virProcessGetStatInfo(&vcpuinfo->cpuTime, &vcpuinfo->cpu, NULL, vm->pid, vcpupid) < 0) { virReportSystemError(errno, "%s", @@ -1483,7 +1376,7 @@ qemuDomainHelperGetVcpus(virDomainObj *vm, } if (cpuwait) { - if (qemuGetSchedInfo(&(cpuwait[ncpuinfo]), vm->pid, vcpupid) < 0) + if (virProcessGetSchedInfo(&(cpuwait[ncpuinfo]), vm->pid, vcpupid) < 0) return -1; } @@ -2626,7 +2519,8 @@ qemuDomainGetInfo(virDomainPtr dom, } if (virDomainObjIsActive(vm)) { - if (qemuGetProcessInfo(&(info->cpuTime), NULL, NULL, vm->pid, 0) < 0) { + if (virProcessGetStatInfo(&(info->cpuTime), NULL, NULL, + vm->pid, 0) < 0) { virReportError(VIR_ERR_OPERATION_FAILED, "%s", _("cannot read cputime for domain")); goto cleanup; @@ -10623,7 +10517,7 @@ qemuDomainMemoryStatsInternal(virQEMUDriver *driver, ret = 0; } - if (qemuGetProcessInfo(NULL, NULL, &rss, vm->pid, 0) < 0) { + if (virProcessGetStatInfo(NULL, NULL, &rss, vm->pid, 0) < 0) { virReportError(VIR_ERR_OPERATION_FAILED, "%s", _("cannot get RSS for domain")); } else { diff --git a/src/util/virprocess.c b/src/util/virprocess.c index 7b0ad9c97b..3be9080b67 100644 --- a/src/util/virprocess.c +++ b/src/util/virprocess.c @@ -1764,3 +1764,111 @@ virProcessGetStat(pid_t pid, return ret; } + + +int +virProcessGetStatInfo(unsigned long long *cpuTime, int *lastCpu, long *vm_rss, + pid_t pid, pid_t tid) +{ + g_auto(GStrv) proc_stat = virProcessGetStat(pid, tid); + unsigned long long usertime = 0, systime = 0; + long rss = 0; + int cpu = 0; + + if (!proc_stat || + virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_UTIME], NULL, 10, + &usertime) < 0 + || virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_STIME], NULL, 10, + &systime) < 0 + || virStrToLong_l(proc_stat[VIR_PROCESS_STAT_RSS], NULL, 10, &rss) < 0 + || virStrToLong_i(proc_stat[VIR_PROCESS_STAT_PROCESSOR], NULL, 10, + &cpu) < 0) { + VIR_WARN("cannot parse process status data"); + } + + /* We got jiffies + * We want nanoseconds + * _SC_CLK_TCK is jiffies per second + * So calculate thus.... + */ + if (cpuTime) + *cpuTime = 1000ull * 1000ull * 1000ull * (usertime + systime) + / (unsigned long long) sysconf(_SC_CLK_TCK); + if (lastCpu) + *lastCpu = cpu; + + if (vm_rss) + *vm_rss = rss * virGetSystemPageSizeKB(); + + + VIR_DEBUG("Got status for %d/%d user=%llu sys=%llu cpu=%d rss=%ld", + (int) pid, tid, usertime, systime, cpu, rss); + + return 0; +} + +int +virProcessGetSchedInfo(unsigned long long *cpuWait, pid_t pid, pid_t tid) +{ + g_autofree char *proc = NULL; + g_autofree char *data = NULL; + + g_auto(GStrv) lines = NULL; + size_t i; + double val; + + *cpuWait = 0; + + /* In general, we cannot assume pid_t fits in int; but /proc parsing + * is specific to Linux where int works fine. */ + if (tid) + proc = g_strdup_printf("/proc/%d/task/%d/sched", (int) pid, (int) tid); + else + proc = g_strdup_printf("/proc/%d/sched", (int) pid); + if (!proc) + return -1; + + /* The file is not guaranteed to exist (needs CONFIG_SCHED_DEBUG) */ + if (access(proc, R_OK) < 0) { + return 0; + } + + if (virFileReadAll(proc, (1 << 16), &data) < 0) + return -1; + + lines = g_strsplit(data, "\n", 0); + if (!lines) + return -1; + + for (i = 0; lines[i] != NULL; i++) { + const char *line = lines[i]; + + /* Needs CONFIG_SCHEDSTATS. The second check + * is the old name the kernel used in past */ + if (STRPREFIX(line, "se.statistics.wait_sum") || + STRPREFIX(line, "se.wait_sum")) { + line = strchr(line, ':'); + if (!line) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Missing separator in sched info '%s'"), + lines[i]); + return -1; + } + line++; + while (*line == ' ') + line++; + + if (virStrToDouble(line, NULL, &val) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Unable to parse sched info value '%s'"), + line); + return -1; + } + + *cpuWait = (unsigned long long) (val * 1000000); + break; + } + } + + return 0; +} diff --git a/src/util/virprocess.h b/src/util/virprocess.h index 82b7403964..d9d27c29b8 100644 --- a/src/util/virprocess.h +++ b/src/util/virprocess.h @@ -193,3 +193,8 @@ typedef enum { } virProcessNamespaceFlags; int virProcessNamespaceAvailable(unsigned int ns); + +int virProcessGetStatInfo(unsigned long long *cpuTime, int *lastCpu, + long *vm_rss, pid_t pid, pid_t tid); +int virProcessGetSchedInfo(unsigned long long *cpuWait, pid_t pid, + pid_t tid); -- 2.27.0

From: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_domain.c | 6 ++++++ src/ch/ch_domain.h | 5 +++++ 2 files changed, 11 insertions(+) diff --git a/src/ch/ch_domain.c b/src/ch/ch_domain.c index dd4de9e1ea..bf4ce83595 100644 --- a/src/ch/ch_domain.c +++ b/src/ch/ch_domain.c @@ -290,3 +290,9 @@ virDomainDefParserConfig virCHDriverDomainDefParserConfig = { .domainPostParseCallback = virCHDomainDefPostParse, .deviceValidateCallback = chValidateDomainDeviceDef, }; + +virCHMonitor * +virCHDomainGetMonitor(virDomainObj *vm) +{ + return CH_DOMAIN_PRIVATE(vm)->monitor; +} diff --git a/src/ch/ch_domain.h b/src/ch/ch_domain.h index 61b34b0467..c053b25c65 100644 --- a/src/ch/ch_domain.h +++ b/src/ch/ch_domain.h @@ -57,6 +57,11 @@ struct _virCHDomainObjPrivate { virChrdevs *chrdevs; }; +#define CH_DOMAIN_PRIVATE(vm) \ + ((virCHDomainObjPrivate*)(vm)->privateData) + +virCHMonitor *virCHDomainGetMonitor(virDomainObj *vm); + extern virDomainXMLPrivateDataCallbacks virCHDriverPrivateDataCallbacks; extern virDomainDefParserConfig virCHDriverDomainDefParserConfig; -- 2.27.0

From: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_domain.c | 50 +++++++++++++++++++++++++++++++++++++++++----- src/ch/ch_domain.h | 11 ++++++++++ 2 files changed, 56 insertions(+), 5 deletions(-) diff --git a/src/ch/ch_domain.c b/src/ch/ch_domain.c index bf4ce83595..36333a8a3f 100644 --- a/src/ch/ch_domain.c +++ b/src/ch/ch_domain.c @@ -164,11 +164,6 @@ virCHDomainObjPrivateFree(void *data) g_free(priv); } -virDomainXMLPrivateDataCallbacks virCHDriverPrivateDataCallbacks = { - .alloc = virCHDomainObjPrivateAlloc, - .free = virCHDomainObjPrivateFree, -}; - static int virCHDomainDefPostParseBasic(virDomainDef *def, void *opaque G_GNUC_UNUSED) @@ -185,6 +180,45 @@ virCHDomainDefPostParseBasic(virDomainDef *def, return 0; } +static virClass *virCHDomainVcpuPrivateClass; +static void virCHDomainVcpuPrivateDispose(void *obj); + +static int +virCHDomainVcpuPrivateOnceInit(void) +{ + if (!VIR_CLASS_NEW(virCHDomainVcpuPrivate, virClassForObject())) + return -1; + + return 0; +} + +VIR_ONCE_GLOBAL_INIT(virCHDomainVcpuPrivate); + +static virObject * +virCHDomainVcpuPrivateNew(void) +{ + virCHDomainVcpuPrivate *priv; + + if (virCHDomainVcpuPrivateInitialize() < 0) + return NULL; + + if (!(priv = virObjectNew(virCHDomainVcpuPrivateClass))) + return NULL; + + return (virObject *) priv; +} + + +static void +virCHDomainVcpuPrivateDispose(void *obj) +{ + virCHDomainVcpuPrivate *priv = obj; + + priv->tid = 0; + + return; +} + static int virCHDomainDefPostParse(virDomainDef *def, unsigned int parseFlags G_GNUC_UNUSED, @@ -203,6 +237,12 @@ virCHDomainDefPostParse(virDomainDef *def, return 0; } +virDomainXMLPrivateDataCallbacks virCHDriverPrivateDataCallbacks = { + .alloc = virCHDomainObjPrivateAlloc, + .free = virCHDomainObjPrivateFree, + .vcpuNew = virCHDomainVcpuPrivateNew, +}; + static int chValidateDomainDeviceDef(const virDomainDeviceDef *dev, const virDomainDef *def G_GNUC_UNUSED, diff --git a/src/ch/ch_domain.h b/src/ch/ch_domain.h index c053b25c65..f01c0e5ad0 100644 --- a/src/ch/ch_domain.h +++ b/src/ch/ch_domain.h @@ -62,6 +62,17 @@ struct _virCHDomainObjPrivate { virCHMonitor *virCHDomainGetMonitor(virDomainObj *vm); +typedef struct _virCHDomainVcpuPrivate virCHDomainVcpuPrivate; +struct _virCHDomainVcpuPrivate { + virObject parent; + + pid_t tid; /* vcpu thread id */ + virTristateBool halted; +}; + +#define CH_DOMAIN_VCPU_PRIVATE(vcpu) \ + ((virCHDomainVcpuPrivate *) (vcpu)->privateData) + extern virDomainXMLPrivateDataCallbacks virCHDriverPrivateDataCallbacks; extern virDomainDefParserConfig virCHDriverDomainDefParserConfig; -- 2.27.0

Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_domain.c | 25 +++++++++ src/ch/ch_domain.h | 4 ++ src/ch/ch_driver.c | 134 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 163 insertions(+) diff --git a/src/ch/ch_domain.c b/src/ch/ch_domain.c index 36333a8a3f..3f34e87e04 100644 --- a/src/ch/ch_domain.c +++ b/src/ch/ch_domain.c @@ -336,3 +336,28 @@ virCHDomainGetMonitor(virDomainObj *vm) { return CH_DOMAIN_PRIVATE(vm)->monitor; } + +pid_t +virCHDomainGetVcpuPid(virDomainObj *vm, unsigned int vcpuid) +{ + virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, vcpuid); + + return CH_DOMAIN_VCPU_PRIVATE(vcpu)->tid; +} + +bool +virCHDomainHasVcpuPids(virDomainObj *vm) +{ + size_t i; + size_t maxvcpus = virDomainDefGetVcpusMax(vm->def); + virDomainVcpuDef *vcpu; + + for (i = 0; i < maxvcpus; i++) { + vcpu = virDomainDefGetVcpu(vm->def, i); + + if (CH_DOMAIN_VCPU_PRIVATE(vcpu)->tid > 0) + return true; + } + + return false; +} diff --git a/src/ch/ch_domain.h b/src/ch/ch_domain.h index f01c0e5ad0..1ec7643216 100644 --- a/src/ch/ch_domain.h +++ b/src/ch/ch_domain.h @@ -82,3 +82,7 @@ virCHDomainObjBeginJob(virDomainObj *obj, enum virCHDomainJob job) void virCHDomainObjEndJob(virDomainObj *obj); + +int virCHDomainRefreshVcpuInfo(virDomainObj *vm); +pid_t virCHDomainGetVcpuPid(virDomainObj *vm, unsigned int vcpuid); +bool virCHDomainHasVcpuPids(virDomainObj *vm); diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c index 108644e503..31e9de7f6a 100644 --- a/src/ch/ch_driver.c +++ b/src/ch/ch_driver.c @@ -942,6 +942,137 @@ static int chStateInitialize(bool privileged, return ret; } +static int +chDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags) +{ + virDomainObj *vm; + virDomainDef *def; + int ret = -1; + + virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | + VIR_DOMAIN_AFFECT_CONFIG | + VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_GUEST, -1); + + if (!(vm = chDomObjFromDomain(dom))) + return -1; + + if (virDomainGetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0) + goto cleanup; + + if (!(def = virDomainObjGetOneDef(vm, flags))) + goto cleanup; + + if (flags & VIR_DOMAIN_VCPU_MAXIMUM) + ret = virDomainDefGetVcpusMax(def); + else + ret = virDomainDefGetVcpus(def); + + + cleanup: + virDomainObjEndAPI(&vm); + return ret; +} + +static int +chDomainGetMaxVcpus(virDomainPtr dom) +{ + return chDomainGetVcpusFlags(dom, + (VIR_DOMAIN_AFFECT_LIVE | + VIR_DOMAIN_VCPU_MAXIMUM)); +} + +static int +chDomainHelperGetVcpus(virDomainObj *vm, + virVcpuInfoPtr info, + unsigned long long *cpuwait, + int maxinfo, unsigned char *cpumaps, int maplen) +{ + size_t ncpuinfo = 0; + size_t i; + + if (maxinfo == 0) + return 0; + + if (!virCHDomainHasVcpuPids(vm)) { + virReportError(VIR_ERR_OPERATION_INVALID, + "%s", _("cpu affinity is not supported")); + return -1; + } + + if (info) + memset(info, 0, sizeof(*info) * maxinfo); + + if (cpumaps) + memset(cpumaps, 0, sizeof(*cpumaps) * maxinfo); + + for (i = 0; i < virDomainDefGetVcpusMax(vm->def) && ncpuinfo < maxinfo; i++) { + virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, i); + pid_t vcpupid = virCHDomainGetVcpuPid(vm, i); + virVcpuInfoPtr vcpuinfo = info + ncpuinfo; + + if (!vcpu->online) + continue; + + if (info) { + vcpuinfo->number = i; + vcpuinfo->state = VIR_VCPU_RUNNING; + if (virProcessGetStatInfo(&vcpuinfo->cpuTime, + &vcpuinfo->cpu, NULL, + vm->pid, vcpupid) < 0) { + virReportSystemError(errno, "%s", + _("cannot get vCPU placement & pCPU time")); + return -1; + } + } + + if (cpumaps) { + unsigned char *cpumap = VIR_GET_CPUMAP(cpumaps, maplen, ncpuinfo); + g_autoptr(virBitmap) map = NULL; + + if (!(map = virProcessGetAffinity(vcpupid))) + return -1; + + virBitmapToDataBuf(map, cpumap, maplen); + } + + if (cpuwait) { + if (virProcessGetSchedInfo(&(cpuwait[ncpuinfo]), vm->pid, vcpupid) < 0) + return -1; + } + + ncpuinfo++; + } + + return ncpuinfo; +} + +static int +chDomainGetVcpus(virDomainPtr dom, + virVcpuInfoPtr info, + int maxinfo, unsigned char *cpumaps, int maplen) +{ + virDomainObj *vm; + int ret = -1; + + if (!(vm = chDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainGetVcpusEnsureACL(dom->conn, vm->def) < 0) + goto cleanup; + + if (virDomainObjCheckActive(vm) < 0) { + virReportError(VIR_ERR_OPERATION_INVALID, "%s", + _("cannot retrieve vcpu information for inactive domain")); + goto cleanup; + } + + ret = chDomainHelperGetVcpus(vm, info, NULL, maxinfo, cpumaps, maplen); + + cleanup: + virDomainObjEndAPI(&vm); + return ret; +} + /* Function Tables */ static virHypervisorDriver chHypervisorDriver = { .name = "CH", @@ -978,6 +1109,9 @@ static virHypervisorDriver chHypervisorDriver = { .domainIsActive = chDomainIsActive, /* 7.5.0 */ .domainOpenConsole = chDomainOpenConsole, /* 7.8.0 */ .nodeGetInfo = chNodeGetInfo, /* 7.5.0 */ + .domainGetVcpus = chDomainGetVcpus, /* 8.0.0 */ + .domainGetVcpusFlags = chDomainGetVcpusFlags, /* 8.0.0 */ + .domainGetMaxVcpus = chDomainGetMaxVcpus, /* 8.0.0 */ }; static virConnectDriver chConnectDriver = { -- 2.27.0

From: Vineeth Pillai <viremana@linux.microsoft.com> Add domainGetVcpuPinInfo and nodeGetCPUMap callbacks to ch driver Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_domain.h | 10 +++++++-- src/ch/ch_driver.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+), 2 deletions(-) diff --git a/src/ch/ch_domain.h b/src/ch/ch_domain.h index 1ec7643216..c36405808b 100644 --- a/src/ch/ch_domain.h +++ b/src/ch/ch_domain.h @@ -23,6 +23,7 @@ #include "ch_conf.h" #include "ch_monitor.h" #include "virchrdev.h" +#include "vircgroup.h" /* Give up waiting for mutex after 30 seconds */ #define CH_JOB_WAIT_TIME (1000ull * 30) @@ -52,9 +53,14 @@ typedef struct _virCHDomainObjPrivate virCHDomainObjPrivate; struct _virCHDomainObjPrivate { struct virCHDomainJobObj job; + virChrdevs *chrdevs; + virCgroup *cgroup; + virCHDriver *driver; virCHMonitor *monitor; - - virChrdevs *chrdevs; + char *machineName; + virBitmap *autoNodeset; + virBitmap *autoCpuset; + virChrdevs *devs; }; #define CH_DOMAIN_PRIVATE(vm) \ diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c index 31e9de7f6a..ad7383e96e 100644 --- a/src/ch/ch_driver.c +++ b/src/ch/ch_driver.c @@ -981,6 +981,55 @@ chDomainGetMaxVcpus(virDomainPtr dom) VIR_DOMAIN_VCPU_MAXIMUM)); } +static int +chDomainGetVcpuPinInfo(virDomain *dom, + int ncpumaps, + unsigned char *cpumaps, int maplen, unsigned int flags) +{ + virDomainObj *vm = NULL; + virDomainDef *def; + bool live; + int ret = -1; + + g_autoptr(virBitmap) hostcpus = NULL; + virBitmap *autoCpuset = NULL; + + virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG, -1); + + if (!(vm = chDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainGetVcpuPinInfoEnsureACL(dom->conn, vm->def) < 0) + goto cleanup; + + if (!(def = virDomainObjGetOneDefState(vm, flags, &live))) + goto cleanup; + + if (!(hostcpus = virHostCPUGetAvailableCPUsBitmap())) + goto cleanup; + + if (live) + autoCpuset = CH_DOMAIN_PRIVATE(vm)->autoCpuset; + + ret = virDomainDefGetVcpuPinInfoHelper(def, maplen, ncpumaps, cpumaps, + hostcpus, autoCpuset); + cleanup: + virDomainObjEndAPI(&vm); + return ret; +} + +static int +chNodeGetCPUMap(virConnectPtr conn, + unsigned char **cpumap, + unsigned int *online, unsigned int flags) +{ + if (virNodeGetCPUMapEnsureACL(conn) < 0) + return -1; + + return virHostCPUGetMap(cpumap, online, flags); +} + + static int chDomainHelperGetVcpus(virDomainObj *vm, virVcpuInfoPtr info, @@ -1112,6 +1161,8 @@ static virHypervisorDriver chHypervisorDriver = { .domainGetVcpus = chDomainGetVcpus, /* 8.0.0 */ .domainGetVcpusFlags = chDomainGetVcpusFlags, /* 8.0.0 */ .domainGetMaxVcpus = chDomainGetMaxVcpus, /* 8.0.0 */ + .domainGetVcpuPinInfo = chDomainGetVcpuPinInfo, /* 8.0.0 */ + .nodeGetCPUMap = chNodeGetCPUMap, /* 8.0.0 */ }; static virConnectDriver chConnectDriver = { -- 2.27.0

From: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_conf.h | 2 + src/ch/ch_domain.c | 27 ++++++- src/ch/ch_domain.h | 2 + src/ch/ch_driver.c | 1 + src/ch/ch_monitor.c | 185 ++++++++++++++++++++++++++++++-------------- src/ch/ch_monitor.h | 14 +++- src/ch/ch_process.c | 6 +- src/ch/meson.build | 1 + 8 files changed, 179 insertions(+), 59 deletions(-) diff --git a/src/ch/ch_conf.h b/src/ch/ch_conf.h index 37c36d9a09..8fe69c8545 100644 --- a/src/ch/ch_conf.h +++ b/src/ch/ch_conf.h @@ -44,6 +44,8 @@ struct _virCHDriver { virMutex lock; + bool privileged; + /* Require lock to get a reference on the object, * lockless access thereafter */ virCaps *caps; diff --git a/src/ch/ch_domain.c b/src/ch/ch_domain.c index 3f34e87e04..3a32ac63d9 100644 --- a/src/ch/ch_domain.c +++ b/src/ch/ch_domain.c @@ -21,10 +21,12 @@ #include <config.h> #include "ch_domain.h" +#include "domain_driver.h" #include "viralloc.h" #include "virchrdev.h" #include "virlog.h" #include "virtime.h" +#include "virsystemd.h" #define VIR_FROM_THIS VIR_FROM_CH @@ -134,7 +136,7 @@ virCHDomainObjEndJob(virDomainObj *obj) } static void * -virCHDomainObjPrivateAlloc(void *opaque G_GNUC_UNUSED) +virCHDomainObjPrivateAlloc(void *opaque) { virCHDomainObjPrivate *priv; @@ -150,6 +152,7 @@ virCHDomainObjPrivateAlloc(void *opaque G_GNUC_UNUSED) g_free(priv); return NULL; } + priv->driver = opaque; return priv; } @@ -361,3 +364,25 @@ virCHDomainHasVcpuPids(virDomainObj *vm) return false; } + +char * +virCHDomainGetMachineName(virDomainObj *vm) +{ + virCHDomainObjPrivate *priv = CH_DOMAIN_PRIVATE(vm); + virCHDriver *driver = priv->driver; + char *ret = NULL; + + if (vm->pid > 0) { + ret = virSystemdGetMachineNameByPID(vm->pid); + if (!ret) + virResetLastError(); + } + + if (!ret) + ret = virDomainDriverGenerateMachineName("ch", + NULL, + vm->def->id, vm->def->name, + driver->privileged); + + return ret; +} diff --git a/src/ch/ch_domain.h b/src/ch/ch_domain.h index c36405808b..4fc6251380 100644 --- a/src/ch/ch_domain.h +++ b/src/ch/ch_domain.h @@ -92,3 +92,5 @@ virCHDomainObjEndJob(virDomainObj *obj); int virCHDomainRefreshVcpuInfo(virDomainObj *vm); pid_t virCHDomainGetVcpuPid(virDomainObj *vm, unsigned int vcpuid); bool virCHDomainHasVcpuPids(virDomainObj *vm); + +char *virCHDomainGetMachineName(virDomainObj *vm); diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c index ad7383e96e..97fbd76959 100644 --- a/src/ch/ch_driver.c +++ b/src/ch/ch_driver.c @@ -934,6 +934,7 @@ static int chStateInitialize(bool privileged, goto cleanup; } + ch_driver->privileged = privileged; ret = VIR_DRV_STATE_INIT_COMPLETE; cleanup: diff --git a/src/ch/ch_monitor.c b/src/ch/ch_monitor.c index 12c10da874..d48b057814 100644 --- a/src/ch/ch_monitor.c +++ b/src/ch/ch_monitor.c @@ -226,7 +226,8 @@ virCHMonitorBuildDisksJson(virJSONValue *content, virDomainDef *vmdef) } static int -virCHMonitorBuildNetJson(virJSONValue *nets, virDomainNetDef *netdef) +virCHMonitorBuildNetJson(virJSONValue *nets, virDomainNetDef *netdef, + size_t *nnicindexes, int **nicindexes) { virDomainNetType netType = virDomainNetGetActualType(netdef); char macaddr[VIR_MAC_STRING_BUFLEN]; @@ -236,59 +237,72 @@ virCHMonitorBuildNetJson(virJSONValue *nets, virDomainNetDef *netdef) net = virJSONValueNewObject(); switch (netType) { - case VIR_DOMAIN_NET_TYPE_ETHERNET: - if (netdef->guestIP.nips == 1) { - const virNetDevIPAddr *ip = netdef->guestIP.ips[0]; - g_autofree char *addr = NULL; - virSocketAddr netmask; - g_autofree char *netmaskStr = NULL; - if (!(addr = virSocketAddrFormat(&ip->address))) - return -1; - if (virJSONValueObjectAppendString(net, "ip", addr) < 0) - return -1; + case VIR_DOMAIN_NET_TYPE_ETHERNET: + if (netdef->guestIP.nips == 1) { + const virNetDevIPAddr *ip = netdef->guestIP.ips[0]; + g_autofree char *addr = NULL; + virSocketAddr netmask; + g_autofree char *netmaskStr = NULL; + + if (!(addr = virSocketAddrFormat(&ip->address))) + return -1; + if (virJSONValueObjectAppendString(net, "ip", addr) < 0) + return -1; + + if (virSocketAddrPrefixToNetmask(ip->prefix, &netmask, AF_INET) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed to translate net prefix %d to netmask"), + ip->prefix); + return -1; + } + if (!(netmaskStr = virSocketAddrFormat(&netmask))) + return -1; + if (virJSONValueObjectAppendString(net, "mask", netmaskStr) < 0) + return -1; + } else if (netdef->guestIP.nips > 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("ethernet type supports a single guest ip")); + } - if (virSocketAddrPrefixToNetmask(ip->prefix, &netmask, AF_INET) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to translate net prefix %d to netmask"), - ip->prefix); - return -1; + /* network and bridge use a tap device, and direct uses a + * macvtap device + */ + if (nicindexes && nnicindexes && netdef->ifname) { + int nicindex = 0; + + if (virNetDevGetIndex(netdef->ifname, &nicindex) < 0) + return -1; + + VIR_APPEND_ELEMENT(*nicindexes, *nnicindexes, nicindex); } - if (!(netmaskStr = virSocketAddrFormat(&netmask))) - return -1; - if (virJSONValueObjectAppendString(net, "mask", netmaskStr) < 0) - return -1; - } else if (netdef->guestIP.nips > 1) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("ethernet type supports a single guest ip")); - } - break; - case VIR_DOMAIN_NET_TYPE_VHOSTUSER: - if ((virDomainChrType)netdef->data.vhostuser->type != VIR_DOMAIN_CHR_TYPE_UNIX) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + break; + case VIR_DOMAIN_NET_TYPE_VHOSTUSER: + if ((virDomainChrType)netdef->data.vhostuser->type != VIR_DOMAIN_CHR_TYPE_UNIX) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("vhost_user type support UNIX socket in this CH")); - return -1; - } else { - if (virJSONValueObjectAppendString(net, "vhost_socket", netdef->data.vhostuser->data.nix.path) < 0) - return -1; - if (virJSONValueObjectAppendBoolean(net, "vhost_user", true) < 0) return -1; - } - break; - case VIR_DOMAIN_NET_TYPE_BRIDGE: - case VIR_DOMAIN_NET_TYPE_NETWORK: - case VIR_DOMAIN_NET_TYPE_DIRECT: - case VIR_DOMAIN_NET_TYPE_USER: - case VIR_DOMAIN_NET_TYPE_SERVER: - case VIR_DOMAIN_NET_TYPE_CLIENT: - case VIR_DOMAIN_NET_TYPE_MCAST: - case VIR_DOMAIN_NET_TYPE_INTERNAL: - case VIR_DOMAIN_NET_TYPE_HOSTDEV: - case VIR_DOMAIN_NET_TYPE_UDP: - case VIR_DOMAIN_NET_TYPE_VDPA: - case VIR_DOMAIN_NET_TYPE_LAST: - default: - virReportEnumRangeError(virDomainNetType, netType); - return -1; + } else { + if (virJSONValueObjectAppendString(net, "vhost_socket", netdef->data.vhostuser->data.nix.path) < 0) + return -1; + if (virJSONValueObjectAppendBoolean(net, "vhost_user", true) < 0) + return -1; + } + break; + case VIR_DOMAIN_NET_TYPE_BRIDGE: + case VIR_DOMAIN_NET_TYPE_NETWORK: + case VIR_DOMAIN_NET_TYPE_DIRECT: + case VIR_DOMAIN_NET_TYPE_USER: + case VIR_DOMAIN_NET_TYPE_SERVER: + case VIR_DOMAIN_NET_TYPE_CLIENT: + case VIR_DOMAIN_NET_TYPE_MCAST: + case VIR_DOMAIN_NET_TYPE_INTERNAL: + case VIR_DOMAIN_NET_TYPE_HOSTDEV: + case VIR_DOMAIN_NET_TYPE_UDP: + case VIR_DOMAIN_NET_TYPE_VDPA: + case VIR_DOMAIN_NET_TYPE_LAST: + default: + virReportEnumRangeError(virDomainNetType, netType); + return -1; } if (netdef->ifname != NULL) { @@ -329,7 +343,8 @@ virCHMonitorBuildNetJson(virJSONValue *nets, virDomainNetDef *netdef) } static int -virCHMonitorBuildNetsJson(virJSONValue *content, virDomainDef *vmdef) +virCHMonitorBuildNetsJson(virJSONValue *content, virDomainDef *vmdef, + size_t *nnicindexes, int **nicindexes) { g_autoptr(virJSONValue) nets = NULL; size_t i; @@ -338,7 +353,8 @@ virCHMonitorBuildNetsJson(virJSONValue *content, virDomainDef *vmdef) nets = virJSONValueNewArray(); for (i = 0; i < vmdef->nnets; i++) { - if (virCHMonitorBuildNetJson(nets, vmdef->nets[i]) < 0) + if (virCHMonitorBuildNetJson(nets, vmdef->nets[i], + nnicindexes, nicindexes) < 0) return -1; } if (virJSONValueObjectAppend(content, "net", &nets) < 0) @@ -349,7 +365,59 @@ virCHMonitorBuildNetsJson(virJSONValue *content, virDomainDef *vmdef) } static int -virCHMonitorBuildVMJson(virDomainDef *vmdef, char **jsonstr) +virCHMonitorBuildDeviceJson(virJSONValue *devices, + virDomainHostdevDef *hostdevdef) +{ + g_autoptr(virJSONValue) device = NULL; + + + if (hostdevdef->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && + hostdevdef->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) { + g_autofree char *name = NULL; + g_autofree char *path = NULL; + virDomainHostdevSubsysPCI *pcisrc = &hostdevdef->source.subsys.u.pci; + + device = virJSONValueNewObject(); + name = virPCIDeviceAddressAsString(&pcisrc->addr); + path = g_strdup_printf("/sys/bus/pci/devices/%s/", name); + if (!virFileExists(path)) { + virReportError(VIR_ERR_DEVICE_MISSING, + _("host pci device %s not found"), path); + return -1; + } + if (virJSONValueObjectAppendString(device, "path", path) < 0) + return -1; + if (virJSONValueArrayAppend(devices, &device) < 0) + return -1; + } + + return 0; +} + +static int +virCHMonitorBuildDevicesJson(virJSONValue *content, virDomainDef *vmdef) +{ + size_t i; + + g_autoptr(virJSONValue) devices = NULL; + + if (vmdef->nhostdevs == 0) + return 0; + + devices = virJSONValueNewArray(); + for (i = 0; i < vmdef->nhostdevs; i++) { + if (virCHMonitorBuildDeviceJson(devices, vmdef->hostdevs[i]) < 0) + return -1; + } + if (virJSONValueObjectAppend(content, "devices", &devices) < 0) + return -1; + + return 0; +} + +static int +virCHMonitorBuildVMJson(virDomainDef *vmdef, char **jsonstr, + size_t *nnicindexes, int **nicindexes) { g_autoptr(virJSONValue) content = virJSONValueNewObject(); @@ -374,7 +442,11 @@ virCHMonitorBuildVMJson(virDomainDef *vmdef, char **jsonstr) if (virCHMonitorBuildDisksJson(content, vmdef) < 0) return -1; - if (virCHMonitorBuildNetsJson(content, vmdef) < 0) + + if (virCHMonitorBuildNetsJson(content, vmdef, nnicindexes, nicindexes) < 0) + return -1; + + if (virCHMonitorBuildDevicesJson(content, vmdef) < 0) return -1; if (!(*jsonstr = virJSONValueToString(content, false))) @@ -671,7 +743,7 @@ virCHMonitorShutdownVMM(virCHMonitor *mon) } int -virCHMonitorCreateVM(virCHMonitor *mon) +virCHMonitorCreateVM(virCHMonitor *mon, size_t *nnicindexes, int **nicindexes) { g_autofree char *url = NULL; int responseCode = 0; @@ -683,7 +755,8 @@ virCHMonitorCreateVM(virCHMonitor *mon) headers = curl_slist_append(headers, "Accept: application/json"); headers = curl_slist_append(headers, "Content-Type: application/json"); - if (virCHMonitorBuildVMJson(mon->vm->def, &payload) != 0) + if (virCHMonitorBuildVMJson(mon->vm->def, &payload, + nnicindexes, nicindexes) != 0) return -1; virObjectLock(mon); diff --git a/src/ch/ch_monitor.h b/src/ch/ch_monitor.h index 0f684ca583..8ca9e17a9a 100644 --- a/src/ch/ch_monitor.h +++ b/src/ch/ch_monitor.h @@ -55,10 +55,22 @@ virCHMonitor *virCHMonitorNew(virDomainObj *vm, const char *socketdir); void virCHMonitorClose(virCHMonitor *mon); G_DEFINE_AUTOPTR_CLEANUP_FUNC(virCHMonitor, virCHMonitorClose); -int virCHMonitorCreateVM(virCHMonitor *mon); + +int virCHMonitorCreateVM(virCHMonitor *mon, + size_t *nnicindexes, int **nicindexes); int virCHMonitorBootVM(virCHMonitor *mon); int virCHMonitorShutdownVM(virCHMonitor *mon); int virCHMonitorRebootVM(virCHMonitor *mon); int virCHMonitorSuspendVM(virCHMonitor *mon); int virCHMonitorResumeVM(virCHMonitor *mon); int virCHMonitorGetInfo(virCHMonitor *mon, virJSONValue **info); + +typedef struct _virCHMonitorCPUInfo virCHMonitorCPUInfo; +struct _virCHMonitorCPUInfo { + pid_t tid; + bool online; +}; +void virCHMonitorCPUInfoFree(virCHMonitorCPUInfo *cpus); +int virCHMonitorGetCPUInfo(virCHMonitor *mon, + virCHMonitorCPUInfo **vcpus, + size_t maxvcpus); diff --git a/src/ch/ch_process.c b/src/ch/ch_process.c index 9f82e04485..65ca03cfaf 100644 --- a/src/ch/ch_process.c +++ b/src/ch/ch_process.c @@ -147,6 +147,8 @@ int virCHProcessStart(virCHDriver *driver, { int ret = -1; virCHDomainObjPrivate *priv = vm->privateData; + g_autofree int *nicindexes = NULL; + size_t nnicindexes = 0; if (!priv->monitor) { /* And we can get the first monitor connection now too */ @@ -156,7 +158,8 @@ int virCHProcessStart(virCHDriver *driver, goto cleanup; } - if (virCHMonitorCreateVM(priv->monitor) < 0) { + if (virCHMonitorCreateVM(priv->monitor, + &nnicindexes, &nicindexes) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("failed to create guest VM")); goto cleanup; @@ -169,6 +172,7 @@ int virCHProcessStart(virCHDriver *driver, goto cleanup; } + priv->machineName = virCHDomainGetMachineName(vm); vm->pid = priv->monitor->pid; vm->def->id = vm->pid; diff --git a/src/ch/meson.build b/src/ch/meson.build index e34974d56c..e0afdb390a 100644 --- a/src/ch/meson.build +++ b/src/ch/meson.build @@ -29,6 +29,7 @@ if conf.has('WITH_CH') ], include_directories: [ conf_inc_dir, + hypervisor_inc_dir, ], ) -- 2.27.0

Refactor some cgroup management methods from qemu into hypervisor. These methods will be shared with ch driver for cgroup management. Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/hypervisor/domain_cgroup.c | 426 ++++++++++++++++++++++++++++++++- src/hypervisor/domain_cgroup.h | 52 ++++ src/libvirt_private.syms | 13 + src/qemu/qemu_cgroup.c | 410 +------------------------------ src/qemu/qemu_cgroup.h | 11 - src/qemu/qemu_driver.c | 14 +- src/qemu/qemu_hotplug.c | 7 +- src/qemu/qemu_process.c | 20 +- 8 files changed, 522 insertions(+), 431 deletions(-) diff --git a/src/hypervisor/domain_cgroup.c b/src/hypervisor/domain_cgroup.c index 61b54f071c..0a1b3867b1 100644 --- a/src/hypervisor/domain_cgroup.c +++ b/src/hypervisor/domain_cgroup.c @@ -22,11 +22,12 @@ #include "domain_cgroup.h" #include "domain_driver.h" - +#include "util/virnuma.h" +#include "virlog.h" #include "virutil.h" #define VIR_FROM_THIS VIR_FROM_DOMAIN - +VIR_LOG_INIT("domain.cgroup"); int virDomainCgroupSetupBlkio(virCgroup *cgroup, virDomainBlkiotune blkio) @@ -269,3 +270,424 @@ virDomainCgroupSetMemoryLimitParameters(virCgroup *cgroup, return 0; } + + +int +virSetupBlkioCgroup(virDomainObj *vm, virCgroup *cgroup) +{ + + if (!virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_BLKIO)) { + if (vm->def->blkio.weight || vm->def->blkio.ndevices) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Block I/O tuning is not available on this host")); + return -1; + } else { + return 0; + } + } + + return virDomainCgroupSetupBlkio(cgroup, vm->def->blkio); +} + + +int +virSetupMemoryCgroup(virDomainObj *vm, virCgroup *cgroup) +{ + + if (!virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_MEMORY)) { + if (virMemoryLimitIsSet(vm->def->mem.hard_limit) || + virMemoryLimitIsSet(vm->def->mem.soft_limit) || + virMemoryLimitIsSet(vm->def->mem.swap_hard_limit)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Memory cgroup is not available on this host")); + return -1; + } else { + return 0; + } + } + + return virDomainCgroupSetupMemtune(cgroup, vm->def->mem); +} + + +int +virSetupCpusetCgroup(virCgroup *cgroup) +{ + + if (!virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) + return 0; + + if (virCgroupSetCpusetMemoryMigrate(cgroup, true) < 0) + return -1; + + return 0; +} + + +int +virSetupCpuCgroup(virDomainObj *vm, virCgroup *cgroup) +{ + + if (!virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPU)) { + if (vm->def->cputune.sharesSpecified) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("CPU tuning is not available on this host")); + return -1; + } else { + return 0; + } + } + + if (vm->def->cputune.sharesSpecified) { + + if (virCgroupSetCpuShares(cgroup, vm->def->cputune.shares) < 0) + return -1; + + } + + return 0; +} + + +int +virInitCgroup(const char *prefix, + virDomainObj * vm, + size_t nnicindexes, int *nicindexes, + virCgroup * cgroup, int cgroupControllers, + unsigned int maxThreadsPerProc, + bool privileged, char *machineName) +{ + if (!privileged) + return 0; + + if (!virCgroupAvailable()) + return 0; + + virCgroupFree(cgroup); + cgroup = NULL; + + if (!vm->def->resource) + vm->def->resource = g_new0(virDomainResourceDef, 1); + + if (!vm->def->resource->partition) + vm->def->resource->partition = g_strdup("/machine"); + + if (!g_path_is_absolute(vm->def->resource->partition)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Resource partition '%s' must start with '/'"), + vm->def->resource->partition); + return -1; + } + + if (virCgroupNewMachine(machineName, + prefix, + vm->def->uuid, + NULL, + vm->pid, + false, + nnicindexes, nicindexes, + vm->def->resource->partition, + cgroupControllers, + maxThreadsPerProc, &cgroup) < 0) { + if (virCgroupNewIgnoreError()) + return 0; + + return -1; + } + + return 0; +} + + +void +virRestoreCgroupState(virDomainObj *vm, virCgroup *cgroup) +{ + g_autofree char *mem_mask = NULL; + size_t i = 0; + + g_autoptr(virBitmap) all_nodes = NULL; + + if (!virNumaIsAvailable() || + !virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) + return; + + if (!(all_nodes = virNumaGetHostMemoryNodeset())) + goto error; + + if (!(mem_mask = virBitmapFormat(all_nodes))) + goto error; + + if (virCgroupHasEmptyTasks(cgroup, VIR_CGROUP_CONTROLLER_CPUSET) <= 0) + goto error; + + if (virCgroupSetCpusetMems(cgroup, mem_mask) < 0) + goto error; + + for (i = 0; i < virDomainDefGetVcpusMax(vm->def); i++) { + virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, i); + + if (!vcpu->online) + continue; + + if (virRestoreCgroupThread(cgroup, VIR_CGROUP_THREAD_VCPU, i) < 0) + return; + } + + for (i = 0; i < vm->def->niothreadids; i++) { + if (virRestoreCgroupThread(cgroup, VIR_CGROUP_THREAD_IOTHREAD, + vm->def->iothreadids[i]->iothread_id) < 0) + return; + } + + if (virRestoreCgroupThread(cgroup, VIR_CGROUP_THREAD_EMULATOR, 0) < 0) + return; + + return; + + error: + virResetLastError(); + VIR_DEBUG("Couldn't restore cgroups to meaningful state"); + return; +} + + +int +virRestoreCgroupThread(virCgroup *cgroup, virCgroupThreadName thread, int id) +{ + g_autoptr(virCgroup) cgroup_temp = NULL; + g_autofree char *nodeset = NULL; + + if (virCgroupNewThread(cgroup, thread, id, false, &cgroup_temp) < 0) + return -1; + + if (virCgroupSetCpusetMemoryMigrate(cgroup_temp, true) < 0) + return -1; + + if (virCgroupGetCpusetMems(cgroup_temp, &nodeset) < 0) + return -1; + + if (virCgroupSetCpusetMems(cgroup_temp, nodeset) < 0) + return -1; + + return 0; +} + + +int +virConnectCgroup(const char *prefix, virDomainObj *vm, virCgroup *cgroup, + int cgroupControllers, bool privileged, char *machineName) +{ + if (privileged) + return 0; + + if (!virCgroupAvailable()) + return 0; + + virCgroupFree(cgroup); + + if (virCgroupNewDetectMachine(vm->def->name, + prefix, + vm->pid, + cgroupControllers, machineName, &cgroup) < 0) + return -1; + + virRestoreCgroupState(vm, cgroup); + return 0; +} + + +int +virSetupCgroup(const char *prefix, + virDomainObj * vm, + size_t nnicindexes, int *nicindexes, + virCgroup * cgroup, + int cgroupControllers, + unsigned int maxThreadsPerProc, + bool privileged, char *machineName) +{ + if (!vm->pid) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Cannot setup cgroups until process is started")); + return -1; + } + + if (virInitCgroup(prefix, vm, nnicindexes, nicindexes, + cgroup, cgroupControllers, + maxThreadsPerProc, privileged, machineName) < 0) + return -1; + + if (!cgroup) + return 0; + + if (virSetupBlkioCgroup(vm, cgroup) < 0) + return -1; + + if (virSetupMemoryCgroup(vm, cgroup) < 0) + return -1; + + if (virSetupCpuCgroup(vm, cgroup) < 0) + return -1; + + if (virSetupCpusetCgroup(cgroup) < 0) + return -1; + + return 0; +} + + +int +virSetupCgroupVcpuBW(virCgroup *cgroup, + unsigned long long period, long long quota) +{ + return virCgroupSetupCpuPeriodQuota(cgroup, period, quota); +} + + +int +virSetupCgroupCpusetCpus(virCgroup *cgroup, virBitmap *cpumask) +{ + return virCgroupSetupCpusetCpus(cgroup, cpumask); +} + + +int +virSetupGlobalCpuCgroup(virDomainObj *vm, virCgroup *cgroup, + virBitmap *autoNodeset) +{ + unsigned long long period = vm->def->cputune.global_period; + long long quota = vm->def->cputune.global_quota; + g_autofree char *mem_mask = NULL; + virDomainNumatuneMemMode mem_mode; + + if ((period || quota) && + !virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPU)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("cgroup cpu is required for scheduler tuning")); + return -1; + } + + /* + * If CPU cgroup controller is not initialized here, then we need + * neither period nor quota settings. And if CPUSET controller is + * not initialized either, then there's nothing to do anyway. + */ + if (!virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPU) && + !virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) + return 0; + + + if (virDomainNumatuneGetMode(vm->def->numa, -1, &mem_mode) == 0 && + mem_mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT && + virDomainNumatuneMaybeFormatNodeset(vm->def->numa, + autoNodeset, &mem_mask, -1) < 0) + return -1; + + if (period || quota) { + if (virSetupCgroupVcpuBW(cgroup, period, quota) < 0) + return -1; + } + + return 0; +} + + +int +virRemoveCgroup(virDomainObj *vm, virCgroup *cgroup, char *machineName) +{ + if (cgroup == NULL) + return 0; /* Not supported, so claim success */ + + if (virCgroupTerminateMachine(machineName) < 0) { + if (!virCgroupNewIgnoreError()) + VIR_DEBUG("Failed to terminate cgroup for %s", vm->def->name); + } + + return virCgroupRemove(cgroup); +} + + +void +virCgroupEmulatorAllNodesDataFree(virCgroupEmulatorAllNodesData *data) +{ + if (!data) + return; + + virCgroupFree(data->emulatorCgroup); + g_free(data->emulatorMemMask); + g_free(data); +} + + +/** + * virCgroupEmulatorAllNodesAllow: + * @cgroup: domain cgroup pointer + * @retData: filled with structure used to roll back the operation + * + * Allows all NUMA nodes for the cloud hypervisor thread temporarily. This is + * necessary when hotplugging cpus since it requires memory allocated in the + * DMA region. Afterwards the operation can be reverted by + * virCgroupEmulatorAllNodesRestore. + * + * Returns 0 on success -1 on error + */ +int +virCgroupEmulatorAllNodesAllow(virCgroup *cgroup, + virCgroupEmulatorAllNodesData **retData) +{ + virCgroupEmulatorAllNodesData *data = NULL; + g_autofree char *all_nodes_str = NULL; + + g_autoptr(virBitmap) all_nodes = NULL; + int ret = -1; + + if (!virNumaIsAvailable() || + !virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) + return 0; + + if (!(all_nodes = virNumaGetHostMemoryNodeset())) + goto cleanup; + + if (!(all_nodes_str = virBitmapFormat(all_nodes))) + goto cleanup; + + data = g_new0(virCgroupEmulatorAllNodesData, 1); + + if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_EMULATOR, 0, + false, &data->emulatorCgroup) < 0) + goto cleanup; + + if (virCgroupGetCpusetMems(data->emulatorCgroup, &data->emulatorMemMask) < 0 + || virCgroupSetCpusetMems(data->emulatorCgroup, all_nodes_str) < 0) + goto cleanup; + + *retData = g_steal_pointer(&data); + ret = 0; + + cleanup: + virCgroupEmulatorAllNodesDataFree(data); + + return ret; +} + + +/** + * virCgroupEmulatorAllNodesRestore: + * @data: data structure created by virCgroupEmulatorAllNodesAllow + * + * Rolls back the setting done by virCgroupEmulatorAllNodesAllow and frees the + * associated data. + */ +void +virCgroupEmulatorAllNodesRestore(virCgroupEmulatorAllNodesData *data) +{ + virError *err; + + if (!data) + return; + + virErrorPreserveLast(&err); + virCgroupSetCpusetMems(data->emulatorCgroup, data->emulatorMemMask); + virErrorRestore(&err); + + virCgroupEmulatorAllNodesDataFree(data); +} diff --git a/src/hypervisor/domain_cgroup.h b/src/hypervisor/domain_cgroup.h index f93e5f74fe..fd8b74a4ee 100644 --- a/src/hypervisor/domain_cgroup.h +++ b/src/hypervisor/domain_cgroup.h @@ -23,6 +23,11 @@ #include "vircgroup.h" #include "domain_conf.h" +typedef struct _virCgroupEmulatorAllNodesData virCgroupEmulatorAllNodesData; +struct _virCgroupEmulatorAllNodesData { + virCgroup *emulatorCgroup; + char *emulatorMemMask; +}; int virDomainCgroupSetupBlkio(virCgroup *cgroup, virDomainBlkiotune blkio); int virDomainCgroupSetupMemtune(virCgroup *cgroup, virDomainMemtune mem); @@ -36,3 +41,50 @@ int virDomainCgroupSetMemoryLimitParameters(virCgroup *cgroup, virDomainDef *persistentDef, virTypedParameterPtr params, int nparams); +int +virSetupBlkioCgroup(virDomainObj * vm, virCgroup *cgroup); +int +virSetupMemoryCgroup(virDomainObj * vm, virCgroup *cgroup); +int +virSetupCpusetCgroup(virCgroup *cgroup); +int +virSetupCpuCgroup(virDomainObj * vm, virCgroup *cgroup); +int +virInitCgroup(const char *prefix, virDomainObj * vm, + size_t nnicindexes, int *nicindexes, + virCgroup *cgroup, int cgroupControllers, + unsigned int maxThreadsPerProc, + bool privileged, + char *machineName); +void +virRestoreCgroupState(virDomainObj * vm, virCgroup *cgroup); +int +virConnectCgroup(const char *prefix, virDomainObj * vm, virCgroup *cgroup, + int cgroupControllers, bool privileged, char *machineName); +int +virSetupCgroup(const char *prefix, virDomainObj * vm, + size_t nnicindexes, int *nicindexes, + virCgroup *cgroup, int cgroupControllers, + unsigned int maxThreadsPerProc, + bool privileged, + char *machineName); +void +virCgroupEmulatorAllNodesDataFree(virCgroupEmulatorAllNodesData * data); +int +virCgroupEmulatorAllNodesAllow(virCgroup * cgroup, + virCgroupEmulatorAllNodesData ** retData); +void +virCgroupEmulatorAllNodesRestore(virCgroupEmulatorAllNodesData * data); +int +virSetupCgroupVcpuBW(virCgroup * cgroup, + unsigned long long period, long long quota); +int +virSetupCgroupCpusetCpus(virCgroup * cgroup, virBitmap * cpumask); +int +virSetupGlobalCpuCgroup(virDomainObj * vm, virCgroup * cgroup, + virBitmap *autoNodeset); +int +virRemoveCgroup(virDomainObj * vm, virCgroup * cgroup, char *machineName); +int +virRestoreCgroupThread(virCgroup *cgroup, virCgroupThreadName thread, + int id); diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 56adc192cd..09b1fbb8c4 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1543,10 +1543,23 @@ virSetConnectStorage; # hypervisor/domain_cgroup.h +virCgroupEmulatorAllNodesAllow; +virCgroupEmulatorAllNodesRestore; +virConnectCgroup; virDomainCgroupSetMemoryLimitParameters; virDomainCgroupSetupBlkio; virDomainCgroupSetupDomainBlkioParameters; virDomainCgroupSetupMemtune; +virInitCgroup; +virRemoveCgroup; +virSetupBlkioCgroup; +virSetupCgroup; +virSetupCgroupCpusetCpus; +virSetupCgroupVcpuBW; +virSetupCpuCgroup; +virSetupCpusetCgroup; +virSetupGlobalCpuCgroup; +virSetupMemoryCgroup; # hypervisor/domain_driver.h diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c index 308be5b00f..b1d2875959 100644 --- a/src/qemu/qemu_cgroup.c +++ b/src/qemu/qemu_cgroup.c @@ -593,46 +593,6 @@ qemuSetupVideoCgroup(virDomainObj *vm, return ret; } - -static int -qemuSetupBlkioCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - - if (!virCgroupHasController(priv->cgroup, - VIR_CGROUP_CONTROLLER_BLKIO)) { - if (vm->def->blkio.weight || vm->def->blkio.ndevices) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("Block I/O tuning is not available on this host")); - return -1; - } - return 0; - } - - return virDomainCgroupSetupBlkio(priv->cgroup, vm->def->blkio); -} - - -static int -qemuSetupMemoryCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - - if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_MEMORY)) { - if (virMemoryLimitIsSet(vm->def->mem.hard_limit) || - virMemoryLimitIsSet(vm->def->mem.soft_limit) || - virMemoryLimitIsSet(vm->def->mem.swap_hard_limit)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("Memory cgroup is not available on this host")); - return -1; - } - return 0; - } - - return virDomainCgroupSetupMemtune(priv->cgroup, vm->def->mem); -} - - static int qemuSetupFirmwareCgroup(virDomainObj *vm) { @@ -861,44 +821,6 @@ qemuSetupDevicesCgroup(virDomainObj *vm) } -static int -qemuSetupCpusetCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - - if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) - return 0; - - if (virCgroupSetCpusetMemoryMigrate(priv->cgroup, true) < 0) - return -1; - - return 0; -} - - -static int -qemuSetupCpuCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - - if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) { - if (vm->def->cputune.sharesSpecified) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("CPU tuning is not available on this host")); - return -1; - } - return 0; - } - - if (vm->def->cputune.sharesSpecified) { - if (virCgroupSetCpuShares(priv->cgroup, vm->def->cputune.shares) < 0) - return -1; - } - - return 0; -} - - static int qemuSetupCgroupAppid(virDomainObj *vm) { @@ -927,166 +849,13 @@ qemuSetupCgroupAppid(virDomainObj *vm) } -static int -qemuInitCgroup(virDomainObj *vm, - size_t nnicindexes, - int *nicindexes) -{ - qemuDomainObjPrivate *priv = vm->privateData; - g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(priv->driver); - - if (!priv->driver->privileged) - return 0; - - if (!virCgroupAvailable()) - return 0; - - virCgroupFree(priv->cgroup); - priv->cgroup = NULL; - - if (!vm->def->resource) - vm->def->resource = g_new0(virDomainResourceDef, 1); - - if (!vm->def->resource->partition) - vm->def->resource->partition = g_strdup("/machine"); - - if (!g_path_is_absolute(vm->def->resource->partition)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("Resource partition '%s' must start with '/'"), - vm->def->resource->partition); - return -1; - } - - if (virCgroupNewMachine(priv->machineName, - "qemu", - vm->def->uuid, - NULL, - vm->pid, - false, - nnicindexes, nicindexes, - vm->def->resource->partition, - cfg->cgroupControllers, - cfg->maxThreadsPerProc, - &priv->cgroup) < 0) { - if (virCgroupNewIgnoreError()) - return 0; - - return -1; - } - - return 0; -} - -static int -qemuRestoreCgroupThread(virCgroup *cgroup, - virCgroupThreadName thread, - int id) -{ - g_autoptr(virCgroup) cgroup_temp = NULL; - g_autofree char *nodeset = NULL; - - if (virCgroupNewThread(cgroup, thread, id, false, &cgroup_temp) < 0) - return -1; - - if (virCgroupSetCpusetMemoryMigrate(cgroup_temp, true) < 0) - return -1; - - if (virCgroupGetCpusetMems(cgroup_temp, &nodeset) < 0) - return -1; - - if (virCgroupSetCpusetMems(cgroup_temp, nodeset) < 0) - return -1; - - return 0; -} - -static void -qemuRestoreCgroupState(virDomainObj *vm) -{ - g_autofree char *mem_mask = NULL; - qemuDomainObjPrivate *priv = vm->privateData; - size_t i = 0; - g_autoptr(virBitmap) all_nodes = NULL; - - if (!virNumaIsAvailable() || - !virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) - return; - - if (!(all_nodes = virNumaGetHostMemoryNodeset())) - goto error; - - if (!(mem_mask = virBitmapFormat(all_nodes))) - goto error; - - if (virCgroupHasEmptyTasks(priv->cgroup, - VIR_CGROUP_CONTROLLER_CPUSET) <= 0) - goto error; - - if (virCgroupSetCpusetMems(priv->cgroup, mem_mask) < 0) - goto error; - - for (i = 0; i < virDomainDefGetVcpusMax(vm->def); i++) { - virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, i); - - if (!vcpu->online) - continue; - - if (qemuRestoreCgroupThread(priv->cgroup, - VIR_CGROUP_THREAD_VCPU, i) < 0) - return; - } - - for (i = 0; i < vm->def->niothreadids; i++) { - if (qemuRestoreCgroupThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD, - vm->def->iothreadids[i]->iothread_id) < 0) - return; - } - - if (qemuRestoreCgroupThread(priv->cgroup, - VIR_CGROUP_THREAD_EMULATOR, 0) < 0) - return; - - return; - - error: - virResetLastError(); - VIR_DEBUG("Couldn't restore cgroups to meaningful state"); - return; -} - -int -qemuConnectCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(priv->driver); - - if (!priv->driver->privileged) - return 0; - - if (!virCgroupAvailable()) - return 0; - - virCgroupFree(priv->cgroup); - priv->cgroup = NULL; - - if (virCgroupNewDetectMachine(vm->def->name, - "qemu", - vm->pid, - cfg->cgroupControllers, - priv->machineName, - &priv->cgroup) < 0) - return -1; - - qemuRestoreCgroupState(vm); - return 0; -} - int qemuSetupCgroup(virDomainObj *vm, size_t nnicindexes, int *nicindexes) { qemuDomainObjPrivate *priv = vm->privateData; + g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(priv->driver); if (!vm->pid) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -1094,7 +863,12 @@ qemuSetupCgroup(virDomainObj *vm, return -1; } - if (qemuInitCgroup(vm, nnicindexes, nicindexes) < 0) + if (virInitCgroup("qemu", vm, nnicindexes, nicindexes, + priv->cgroup, + cfg->cgroupControllers, + cfg->maxThreadsPerProc, + priv->driver->privileged, + priv->machineName) < 0) return -1; if (!priv->cgroup) @@ -1103,16 +877,16 @@ qemuSetupCgroup(virDomainObj *vm, if (qemuSetupDevicesCgroup(vm) < 0) return -1; - if (qemuSetupBlkioCgroup(vm) < 0) + if (virSetupBlkioCgroup(vm, priv->cgroup) < 0) return -1; - if (qemuSetupMemoryCgroup(vm) < 0) + if (virSetupMemoryCgroup(vm, priv->cgroup) < 0) return -1; - if (qemuSetupCpuCgroup(vm) < 0) + if (virSetupCpuCgroup(vm, priv->cgroup) < 0) return -1; - if (qemuSetupCpusetCgroup(vm) < 0) + if (virSetupCpusetCgroup(priv->cgroup) < 0) return -1; if (qemuSetupCgroupAppid(vm) < 0) @@ -1121,23 +895,6 @@ qemuSetupCgroup(virDomainObj *vm, return 0; } -int -qemuSetupCgroupVcpuBW(virCgroup *cgroup, - unsigned long long period, - long long quota) -{ - return virCgroupSetupCpuPeriodQuota(cgroup, period, quota); -} - - -int -qemuSetupCgroupCpusetCpus(virCgroup *cgroup, - virBitmap *cpumask) -{ - return virCgroupSetupCpusetCpus(cgroup, cpumask); -} - - int qemuSetupCgroupForExtDevices(virDomainObj *vm, virQEMUDriver *driver) @@ -1164,148 +921,3 @@ qemuSetupCgroupForExtDevices(virDomainObj *vm, return qemuExtDevicesSetupCgroup(driver, vm, cgroup_temp); } - - -int -qemuSetupGlobalCpuCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - unsigned long long period = vm->def->cputune.global_period; - long long quota = vm->def->cputune.global_quota; - g_autofree char *mem_mask = NULL; - virDomainNumatuneMemMode mem_mode; - - if ((period || quota) && - !virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("cgroup cpu is required for scheduler tuning")); - return -1; - } - - /* - * If CPU cgroup controller is not initialized here, then we need - * neither period nor quota settings. And if CPUSET controller is - * not initialized either, then there's nothing to do anyway. - */ - if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU) && - !virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) - return 0; - - - if (virDomainNumatuneGetMode(vm->def->numa, -1, &mem_mode) == 0 && - mem_mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT && - virDomainNumatuneMaybeFormatNodeset(vm->def->numa, - priv->autoNodeset, - &mem_mask, -1) < 0) - return -1; - - if (period || quota) { - if (qemuSetupCgroupVcpuBW(priv->cgroup, period, quota) < 0) - return -1; - } - - return 0; -} - - -int -qemuRemoveCgroup(virDomainObj *vm) -{ - qemuDomainObjPrivate *priv = vm->privateData; - - if (priv->cgroup == NULL) - return 0; /* Not supported, so claim success */ - - if (virCgroupTerminateMachine(priv->machineName) < 0) { - if (!virCgroupNewIgnoreError()) - VIR_DEBUG("Failed to terminate cgroup for %s", vm->def->name); - } - - return virCgroupRemove(priv->cgroup); -} - - -static void -qemuCgroupEmulatorAllNodesDataFree(qemuCgroupEmulatorAllNodesData *data) -{ - if (!data) - return; - - virCgroupFree(data->emulatorCgroup); - g_free(data->emulatorMemMask); - g_free(data); -} - - -/** - * qemuCgroupEmulatorAllNodesAllow: - * @cgroup: domain cgroup pointer - * @retData: filled with structure used to roll back the operation - * - * Allows all NUMA nodes for the qemu emulator thread temporarily. This is - * necessary when hotplugging cpus since it requires memory allocated in the - * DMA region. Afterwards the operation can be reverted by - * qemuCgroupEmulatorAllNodesRestore. - * - * Returns 0 on success -1 on error - */ -int -qemuCgroupEmulatorAllNodesAllow(virCgroup *cgroup, - qemuCgroupEmulatorAllNodesData **retData) -{ - qemuCgroupEmulatorAllNodesData *data = NULL; - g_autofree char *all_nodes_str = NULL; - g_autoptr(virBitmap) all_nodes = NULL; - int ret = -1; - - if (!virNumaIsAvailable() || - !virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) - return 0; - - if (!(all_nodes = virNumaGetHostMemoryNodeset())) - goto cleanup; - - if (!(all_nodes_str = virBitmapFormat(all_nodes))) - goto cleanup; - - data = g_new0(qemuCgroupEmulatorAllNodesData, 1); - - if (virCgroupNewThread(cgroup, VIR_CGROUP_THREAD_EMULATOR, 0, - false, &data->emulatorCgroup) < 0) - goto cleanup; - - if (virCgroupGetCpusetMems(data->emulatorCgroup, &data->emulatorMemMask) < 0 || - virCgroupSetCpusetMems(data->emulatorCgroup, all_nodes_str) < 0) - goto cleanup; - - *retData = g_steal_pointer(&data); - ret = 0; - - cleanup: - qemuCgroupEmulatorAllNodesDataFree(data); - - return ret; -} - - -/** - * qemuCgroupEmulatorAllNodesRestore: - * @data: data structure created by qemuCgroupEmulatorAllNodesAllow - * - * Rolls back the setting done by qemuCgroupEmulatorAllNodesAllow and frees the - * associated data. - */ -void -qemuCgroupEmulatorAllNodesRestore(qemuCgroupEmulatorAllNodesData *data) -{ - virErrorPtr err; - - if (!data) - return; - - virErrorPreserveLast(&err); - virCgroupSetCpusetMems(data->emulatorCgroup, data->emulatorMemMask); - virErrorRestore(&err); - - qemuCgroupEmulatorAllNodesDataFree(data); -} diff --git a/src/qemu/qemu_cgroup.h b/src/qemu/qemu_cgroup.h index cd537ebd82..f09134947f 100644 --- a/src/qemu/qemu_cgroup.h +++ b/src/qemu/qemu_cgroup.h @@ -56,18 +56,11 @@ int qemuSetupChardevCgroup(virDomainObj *vm, virDomainChrDef *dev); int qemuTeardownChardevCgroup(virDomainObj *vm, virDomainChrDef *dev); -int qemuConnectCgroup(virDomainObj *vm); int qemuSetupCgroup(virDomainObj *vm, size_t nnicindexes, int *nicindexes); -int qemuSetupCgroupVcpuBW(virCgroup *cgroup, - unsigned long long period, - long long quota); -int qemuSetupCgroupCpusetCpus(virCgroup *cgroup, virBitmap *cpumask); -int qemuSetupGlobalCpuCgroup(virDomainObj *vm); int qemuSetupCgroupForExtDevices(virDomainObj *vm, virQEMUDriver *driver); -int qemuRemoveCgroup(virDomainObj *vm); typedef struct _qemuCgroupEmulatorAllNodesData qemuCgroupEmulatorAllNodesData; struct _qemuCgroupEmulatorAllNodesData { @@ -75,8 +68,4 @@ struct _qemuCgroupEmulatorAllNodesData { char *emulatorMemMask; }; -int qemuCgroupEmulatorAllNodesAllow(virCgroup *cgroup, - qemuCgroupEmulatorAllNodesData **data); -void qemuCgroupEmulatorAllNodesRestore(qemuCgroupEmulatorAllNodesData *data); - extern const char *const defaultDeviceACL[]; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index ba3efef42b..d365036743 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4424,7 +4424,7 @@ qemuDomainPinVcpuLive(virDomainObj *vm, if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_VCPU, vcpu, false, &cgroup_vcpu) < 0) goto cleanup; - if (qemuSetupCgroupCpusetCpus(cgroup_vcpu, cpumap) < 0) + if (virSetupCgroupCpusetCpus(cgroup_vcpu, cpumap) < 0) goto cleanup; } @@ -4633,7 +4633,7 @@ qemuDomainPinEmulator(virDomainPtr dom, 0, false, &cgroup_emulator) < 0) goto endjob; - if (qemuSetupCgroupCpusetCpus(cgroup_emulator, pcpumap) < 0) { + if (virSetupCgroupCpusetCpus(cgroup_emulator, pcpumap) < 0) { virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("failed to set cpuset.cpus in cgroup" " for emulator threads")); @@ -5038,7 +5038,7 @@ qemuDomainPinIOThread(virDomainPtr dom, if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD, iothread_id, false, &cgroup_iothread) < 0) goto endjob; - if (qemuSetupCgroupCpusetCpus(cgroup_iothread, pcpumap) < 0) { + if (virSetupCgroupCpusetCpus(cgroup_iothread, pcpumap) < 0) { virReportError(VIR_ERR_OPERATION_INVALID, _("failed to set cpuset.cpus in cgroup" " for iothread %d"), iothread_id); @@ -8926,7 +8926,7 @@ qemuSetGlobalBWLive(virCgroup *cgroup, unsigned long long period, if (period == 0 && quota == 0) return 0; - if (qemuSetupCgroupVcpuBW(cgroup, period, quota) < 0) + if (virSetupCgroupVcpuBW(cgroup, period, quota) < 0) return -1; return 0; @@ -9121,7 +9121,7 @@ qemuSetVcpusBWLive(virDomainObj *vm, virCgroup *cgroup, false, &cgroup_vcpu) < 0) return -1; - if (qemuSetupCgroupVcpuBW(cgroup_vcpu, period, quota) < 0) + if (virSetupCgroupVcpuBW(cgroup_vcpu, period, quota) < 0) return -1; } @@ -9142,7 +9142,7 @@ qemuSetEmulatorBandwidthLive(virCgroup *cgroup, false, &cgroup_emulator) < 0) return -1; - if (qemuSetupCgroupVcpuBW(cgroup_emulator, period, quota) < 0) + if (virSetupCgroupVcpuBW(cgroup_emulator, period, quota) < 0) return -1; return 0; @@ -9169,7 +9169,7 @@ qemuSetIOThreadsBWLive(virDomainObj *vm, virCgroup *cgroup, false, &cgroup_iothread) < 0) return -1; - if (qemuSetupCgroupVcpuBW(cgroup_iothread, period, quota) < 0) + if (virSetupCgroupVcpuBW(cgroup_iothread, period, quota) < 0) return -1; } diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 04c6600f26..30f04aac57 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -37,6 +37,7 @@ #include "qemu_snapshot.h" #include "qemu_virtiofs.h" #include "domain_audit.h" +#include "domain_cgroup.h" #include "netdev_bandwidth_conf.h" #include "domain_nwfilter.h" #include "virlog.h" @@ -6551,11 +6552,11 @@ qemuDomainSetVcpusLive(virQEMUDriver *driver, bool enable) { qemuDomainObjPrivate *priv = vm->privateData; - qemuCgroupEmulatorAllNodesData *emulatorCgroup = NULL; + virCgroupEmulatorAllNodesData *emulatorCgroup = NULL; ssize_t nextvcpu = -1; int ret = -1; - if (qemuCgroupEmulatorAllNodesAllow(priv->cgroup, &emulatorCgroup) < 0) + if (virCgroupEmulatorAllNodesAllow(priv->cgroup, &emulatorCgroup) < 0) goto cleanup; if (enable) { @@ -6576,7 +6577,7 @@ qemuDomainSetVcpusLive(virQEMUDriver *driver, ret = 0; cleanup: - qemuCgroupEmulatorAllNodesRestore(emulatorCgroup); + virCgroupEmulatorAllNodesRestore(emulatorCgroup); return ret; } diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 4963ce383f..21c41e83c9 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -73,6 +73,7 @@ #include "virpidfile.h" #include "virhostcpu.h" #include "domain_audit.h" +#include "domain_cgroup.h" #include "domain_nwfilter.h" #include "domain_validate.h" #include "locking/domain_lock.h" @@ -2744,7 +2745,7 @@ qemuProcessSetupPid(virDomainObj *vm, if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) { if (use_cpumask && - qemuSetupCgroupCpusetCpus(cgroup, use_cpumask) < 0) + virSetupCgroupCpusetCpus(cgroup, use_cpumask) < 0) goto cleanup; if (mem_mask && virCgroupSetCpusetMems(cgroup, mem_mask) < 0) @@ -2753,7 +2754,7 @@ qemuProcessSetupPid(virDomainObj *vm, } if ((period || quota) && - qemuSetupCgroupVcpuBW(cgroup, period, quota) < 0) + virSetupCgroupVcpuBW(cgroup, period, quota) < 0) goto cleanup; /* Move the thread to the sub dir */ @@ -6027,7 +6028,7 @@ qemuProcessSetupHotpluggableVcpus(virQEMUDriver *driver, { unsigned int maxvcpus = virDomainDefGetVcpusMax(vm->def); qemuDomainObjPrivate *priv = vm->privateData; - qemuCgroupEmulatorAllNodesData *emulatorCgroup = NULL; + virCgroupEmulatorAllNodesData *emulatorCgroup = NULL; virDomainVcpuDef *vcpu; qemuDomainVcpuPrivate *vcpupriv; size_t i; @@ -6055,7 +6056,7 @@ qemuProcessSetupHotpluggableVcpus(virQEMUDriver *driver, qsort(bootHotplug, nbootHotplug, sizeof(*bootHotplug), qemuProcessVcpusSortOrder); - if (qemuCgroupEmulatorAllNodesAllow(priv->cgroup, &emulatorCgroup) < 0) + if (virCgroupEmulatorAllNodesAllow(priv->cgroup, &emulatorCgroup) < 0) goto cleanup; for (i = 0; i < nbootHotplug; i++) { @@ -6079,7 +6080,7 @@ qemuProcessSetupHotpluggableVcpus(virQEMUDriver *driver, ret = 0; cleanup: - qemuCgroupEmulatorAllNodesRestore(emulatorCgroup); + virCgroupEmulatorAllNodesRestore(emulatorCgroup); return ret; } @@ -7061,7 +7062,7 @@ qemuProcessPrepareHost(virQEMUDriver *driver, /* Ensure no historical cgroup for this VM is lying around bogus * settings */ VIR_DEBUG("Ensuring no historical cgroup is lying around"); - qemuRemoveCgroup(vm); + virRemoveCgroup(vm, priv->cgroup, priv->machineName); if (g_mkdir_with_parents(cfg->logDir, 0777) < 0) { virReportSystemError(errno, @@ -7678,7 +7679,7 @@ qemuProcessLaunch(virConnectPtr conn, goto cleanup; VIR_DEBUG("Setting global CPU cgroup (if required)"); - if (qemuSetupGlobalCpuCgroup(vm) < 0) + if (virSetupGlobalCpuCgroup(vm, priv->cgroup, priv->autoNodeset) < 0) goto cleanup; VIR_DEBUG("Setting vCPU tuning/settings"); @@ -8290,7 +8291,7 @@ void qemuProcessStop(virQEMUDriver *driver, } retry: - if ((ret = qemuRemoveCgroup(vm)) < 0) { + if ((ret = virRemoveCgroup(vm, priv->cgroup, priv->machineName)) < 0) { if (ret == -EBUSY && (retries++ < 5)) { g_usleep(200*1000); goto retry; @@ -8849,7 +8850,8 @@ qemuProcessReconnect(void *opaque) if (!priv->machineName) goto error; - if (qemuConnectCgroup(obj) < 0) + if (virConnectCgroup("qemu", obj, priv->cgroup, cfg->cgroupControllers, + priv->driver->privileged, priv->machineName) < 0) goto error; if (qemuDomainPerfRestart(obj) < 0) -- 2.27.0

From: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_conf.c | 2 + src/ch/ch_conf.h | 4 +- src/ch/ch_domain.c | 34 +++++ src/ch/ch_domain.h | 3 +- src/ch/ch_monitor.c | 96 ++++++++++++++ src/ch/ch_monitor.h | 54 +++++++- src/ch/ch_process.c | 304 ++++++++++++++++++++++++++++++++++++++++++-- src/ch/ch_process.h | 3 + 8 files changed, 483 insertions(+), 17 deletions(-) diff --git a/src/ch/ch_conf.c b/src/ch/ch_conf.c index ef6f4b5ba8..cfc1174354 100644 --- a/src/ch/ch_conf.c +++ b/src/ch/ch_conf.c @@ -129,6 +129,8 @@ virCHDriverConfigNew(bool privileged) if (!(cfg = virObjectNew(virCHDriverConfigClass))) return NULL; + cfg->cgroupControllers = -1; /* Auto detect */ + if (privileged) { if (virGetUserID(CH_USER, &cfg->user) < 0) return NULL; diff --git a/src/ch/ch_conf.h b/src/ch/ch_conf.h index 8fe69c8545..1790295ede 100644 --- a/src/ch/ch_conf.h +++ b/src/ch/ch_conf.h @@ -35,11 +35,13 @@ struct _virCHDriverConfig { char *stateDir; char *logDir; - + int cgroupControllers; uid_t user; gid_t group; }; +G_DEFINE_AUTOPTR_CLEANUP_FUNC(virCHDriverConfig, virObjectUnref); + struct _virCHDriver { virMutex lock; diff --git a/src/ch/ch_domain.c b/src/ch/ch_domain.c index 3a32ac63d9..42cb4e7dcf 100644 --- a/src/ch/ch_domain.c +++ b/src/ch/ch_domain.c @@ -324,6 +324,40 @@ chValidateDomainDeviceDef(const virDomainDeviceDef *dev, _("Serial can only be enabled for a PTY")); return -1; } + return 0; +} + +int +virCHDomainRefreshThreadInfo(virDomainObj *vm) +{ + size_t maxvcpus = virDomainDefGetVcpusMax(vm->def); + virCHMonitorThreadInfo *info = NULL; + size_t nthreads, ncpus = 0; + size_t i; + + nthreads = virCHMonitorGetThreadInfo(virCHDomainGetMonitor(vm), + true, &info); + + for (i = 0; i < nthreads; i++) { + virCHDomainVcpuPrivate *vcpupriv; + virDomainVcpuDef *vcpu; + virCHMonitorCPUInfo *vcpuInfo; + + if (info[i].type != virCHThreadTypeVcpu) + continue; + + /* TODO: hotplug support */ + vcpuInfo = &info[i].vcpuInfo; + vcpu = virDomainDefGetVcpu(vm->def, vcpuInfo->cpuid); + vcpupriv = CH_DOMAIN_VCPU_PRIVATE(vcpu); + vcpupriv->tid = vcpuInfo->tid; + ncpus++; + } + + /* TODO: Remove the warning when hotplug is implemented.*/ + if (ncpus != maxvcpus) + VIR_WARN("Mismatch in the number of cpus, expected: %ld, actual: %ld", + maxvcpus, ncpus); return 0; } diff --git a/src/ch/ch_domain.h b/src/ch/ch_domain.h index 4fc6251380..7cffe2b4fb 100644 --- a/src/ch/ch_domain.h +++ b/src/ch/ch_domain.h @@ -89,7 +89,8 @@ virCHDomainObjBeginJob(virDomainObj *obj, enum virCHDomainJob job) void virCHDomainObjEndJob(virDomainObj *obj); -int virCHDomainRefreshVcpuInfo(virDomainObj *vm); +int virCHDomainRefreshThreadInfo(virDomainObj *vm); + pid_t virCHDomainGetVcpuPid(virDomainObj *vm, unsigned int vcpuid); bool virCHDomainHasVcpuPids(virDomainObj *vm); diff --git a/src/ch/ch_monitor.c b/src/ch/ch_monitor.c index d48b057814..f4e0f88817 100644 --- a/src/ch/ch_monitor.c +++ b/src/ch/ch_monitor.c @@ -41,6 +41,7 @@ VIR_LOG_INIT("ch.ch_monitor"); static virClass *virCHMonitorClass; static void virCHMonitorDispose(void *obj); +static void virCHMonitorThreadInfoFree(virCHMonitor * mon); static int virCHMonitorOnceInit(void) { @@ -571,6 +572,7 @@ static void virCHMonitorDispose(void *opaque) virCHMonitor *mon = opaque; VIR_DEBUG("mon=%p", mon); + virCHMonitorThreadInfoFree(mon); virObjectUnref(mon->vm); } @@ -736,6 +738,100 @@ virCHMonitorGet(virCHMonitor *mon, const char *endpoint, virJSONValue **response return ret; } +static void +virCHMonitorThreadInfoFree(virCHMonitor *mon) +{ + mon->nthreads = 0; + if (mon->threads) + VIR_FREE(mon->threads); +} + +static size_t +virCHMonitorRefreshThreadInfo(virCHMonitor *mon) +{ + virCHMonitorThreadInfo *info = NULL; + g_autofree pid_t *tids = NULL; + virDomainObj *vm = mon->vm; + size_t ntids = 0; + size_t i; + + + virCHMonitorThreadInfoFree(mon); + if (virProcessGetPids(vm->pid, &ntids, &tids) < 0) { + mon->threads = NULL; + return 0; + } + + info = g_new0(virCHMonitorThreadInfo, ntids); + for (i = 0; i < ntids; i++) { + g_autofree char *proc = NULL; + g_autofree char *data = NULL; + + proc = g_strdup_printf("/proc/%d/task/%d/comm", + (int)vm->pid, (int)tids[i]); + + if (virFileReadAll(proc, (1 << 16), &data) < 0) { + continue; + } + + VIR_DEBUG("VM PID: %d, TID %d, COMM: %s", + (int)vm->pid, (int)tids[i], data); + if (STRPREFIX(data, "vcpu")) { + int cpuid; + char *tmp; + + if (virStrToLong_i(data + 4, &tmp, 0, &cpuid) < 0) { + VIR_WARN("Index is not specified correctly"); + continue; + } + info[i].type = virCHThreadTypeVcpu; + info[i].vcpuInfo.tid = tids[i]; + info[i].vcpuInfo.online = true; + info[i].vcpuInfo.cpuid = cpuid; + VIR_DEBUG("vcpu%d -> tid: %d", cpuid, tids[i]); + } else if (STRPREFIX(data, "_disk") || STRPREFIX(data, "_net") || + STRPREFIX(data, "_rng")) { + /* Prefixes used by cloud-hypervisor for IO Threads are captured at + * https://github.com/cloud-hypervisor/cloud-hypervisor/blob/main/vmm/src/devic... */ + info[i].type = virCHThreadTypeIO; + info[i].ioInfo.tid = tids[i]; + virStrcpy(info[i].ioInfo.thrName, data, VIRCH_THREAD_NAME_LEN - 1); + } else { + info[i].type = virCHThreadTypeEmulator; + info[i].emuInfo.tid = tids[i]; + virStrcpy(info[i].emuInfo.thrName, data, VIRCH_THREAD_NAME_LEN - 1); + } + mon->nthreads++; + + } + mon->threads = info; + + return mon->nthreads; +} + +/** + * virCHMonitorGetThreadInfo: + * @mon: Pointer to the monitor + * @refresh: Refresh thread info or not + * + * Retrive thread info and store to @threads + * + * Returns count of threads on success. + */ +size_t +virCHMonitorGetThreadInfo(virCHMonitor *mon, bool refresh, + virCHMonitorThreadInfo **threads) +{ + int nthreads = 0; + + if (refresh) + nthreads = virCHMonitorRefreshThreadInfo(mon); + + *threads = mon->threads; + + return nthreads; +} + int virCHMonitorShutdownVMM(virCHMonitor *mon) { diff --git a/src/ch/ch_monitor.h b/src/ch/ch_monitor.h index 8ca9e17a9a..f8c3fa75e8 100644 --- a/src/ch/ch_monitor.h +++ b/src/ch/ch_monitor.h @@ -37,6 +37,50 @@ #define URL_VM_RESUME "vm.resume" #define URL_VM_INFO "vm.info" +#define VIRCH_THREAD_NAME_LEN 16 + +typedef enum { + virCHThreadTypeEmulator, + virCHThreadTypeVcpu, + virCHThreadTypeIO, + virCHThreadTypeMax +} virCHThreadType; + +typedef struct _virCHMonitorCPUInfo virCHMonitorCPUInfo; + +struct _virCHMonitorCPUInfo { + int cpuid; + pid_t tid; + + bool online; +}; + +typedef struct _virCHMonitorEmuThreadInfo virCHMonitorEmuThreadInfo; + +struct _virCHMonitorEmuThreadInfo { + char thrName[VIRCH_THREAD_NAME_LEN]; + pid_t tid; +}; + +typedef struct _virCHMonitorIOThreadInfo virCHMonitorIOThreadInfo; + +struct _virCHMonitorIOThreadInfo { + char thrName[VIRCH_THREAD_NAME_LEN]; + pid_t tid; +}; + +typedef struct _virCHMonitorThreadInfo virCHMonitorThreadInfo; + +struct _virCHMonitorThreadInfo { + virCHThreadType type; + + union { + virCHMonitorCPUInfo vcpuInfo; + virCHMonitorEmuThreadInfo emuInfo; + virCHMonitorIOThreadInfo ioInfo; + }; +}; + typedef struct _virCHMonitor virCHMonitor; struct _virCHMonitor { @@ -49,6 +93,9 @@ struct _virCHMonitor { pid_t pid; virDomainObj *vm; + + size_t nthreads; + virCHMonitorThreadInfo *threads; }; virCHMonitor *virCHMonitorNew(virDomainObj *vm, const char *socketdir); @@ -65,12 +112,9 @@ int virCHMonitorSuspendVM(virCHMonitor *mon); int virCHMonitorResumeVM(virCHMonitor *mon); int virCHMonitorGetInfo(virCHMonitor *mon, virJSONValue **info); -typedef struct _virCHMonitorCPUInfo virCHMonitorCPUInfo; -struct _virCHMonitorCPUInfo { - pid_t tid; - bool online; -}; void virCHMonitorCPUInfoFree(virCHMonitorCPUInfo *cpus); int virCHMonitorGetCPUInfo(virCHMonitor *mon, virCHMonitorCPUInfo **vcpus, size_t maxvcpus); +size_t virCHMonitorGetThreadInfo(virCHMonitor *mon, bool refresh, + virCHMonitorThreadInfo **threads); diff --git a/src/ch/ch_process.c b/src/ch/ch_process.c index 65ca03cfaf..56c8d4216d 100644 --- a/src/ch/ch_process.c +++ b/src/ch/ch_process.c @@ -26,6 +26,8 @@ #include "ch_domain.h" #include "ch_monitor.h" #include "ch_process.h" +#include "domain_cgroup.h" +#include "virnuma.h" #include "viralloc.h" #include "virerror.h" #include "virjson.h" @@ -131,6 +133,254 @@ virCHProcessUpdateInfo(virDomainObj *vm) return 0; } +static int +virCHProcessGetAllCpuAffinity(virBitmap **cpumapRet) +{ + *cpumapRet = NULL; + + if (!virHostCPUHasBitmap()) + return 0; + + if (!(*cpumapRet = virHostCPUGetOnlineBitmap())) + return -1; + + return 0; +} + +#if defined(WITH_SCHED_GETAFFINITY) || defined(WITH_BSD_CPU_AFFINITY) +static int +virCHProcessInitCpuAffinity(virDomainObj *vm) +{ + g_autoptr(virBitmap) cpumapToSet = NULL; + virDomainNumatuneMemMode mem_mode; + virCHDomainObjPrivate *priv = vm->privateData; + + if (!vm->pid) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Cannot setup CPU affinity until process is started")); + return -1; + } + + if (virDomainNumaGetNodeCount(vm->def->numa) <= 1 && + virDomainNumatuneGetMode(vm->def->numa, -1, &mem_mode) == 0 && + mem_mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT) { + virBitmap *nodeset = NULL; + + if (virDomainNumatuneMaybeGetNodeset(vm->def->numa, + priv->autoNodeset, + &nodeset, -1) < 0) + return -1; + + if (virNumaNodesetToCPUset(nodeset, &cpumapToSet) < 0) + return -1; + } else if (vm->def->cputune.emulatorpin) { + if (!(cpumapToSet = virBitmapNewCopy(vm->def->cputune.emulatorpin))) + return -1; + } else { + if (virCHProcessGetAllCpuAffinity(&cpumapToSet) < 0) + return -1; + } + + if (cpumapToSet && virProcessSetAffinity(vm->pid, cpumapToSet, false) < 0) { + return -1; + } + + return 0; +} +#else /* !defined(WITH_SCHED_GETAFFINITY) && !defined(WITH_BSD_CPU_AFFINITY) */ +static int +virCHProcessInitCpuAffinity(virDomainObj *vm G_GNUC_UNUSED) +{ + return 0; +} +#endif /* !defined(WITH_SCHED_GETAFFINITY) && !defined(WITH_BSD_CPU_AFFINITY) */ + +/** + * virCHProcessSetupPid: + * + * This function sets resource properties (affinity, cgroups, + * scheduler) for any PID associated with a domain. It should be used + * to set up emulator PIDs as well as vCPU and I/O thread pids to + * ensure they are all handled the same way. + * + * Returns 0 on success, -1 on error. + */ +static int +virCHProcessSetupPid(virDomainObj *vm, + pid_t pid, + virCgroupThreadName nameval, + int id, + virBitmap *cpumask, + unsigned long long period, + long long quota, + virDomainThreadSchedParam *sched) +{ + virCHDomainObjPrivate *priv = vm->privateData; + virDomainNumatuneMemMode mem_mode; + virCgroup *cgroup = NULL; + virBitmap *use_cpumask = NULL; + virBitmap *affinity_cpumask = NULL; + g_autoptr(virBitmap) hostcpumap = NULL; + g_autofree char *mem_mask = NULL; + int ret = -1; + + if ((period || quota) && + !virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("cgroup cpu is required for scheduler tuning")); + goto cleanup; + } + + /* Infer which cpumask shall be used. */ + if (cpumask) { + use_cpumask = cpumask; + } else if (vm->def->placement_mode == VIR_DOMAIN_CPU_PLACEMENT_MODE_AUTO) { + use_cpumask = priv->autoCpuset; + } else if (vm->def->cpumask) { + use_cpumask = vm->def->cpumask; + } else { + /* we can't assume cloud-hypervisor itself is running on all pCPUs, + * so we need to explicitly set the spawned instance to all pCPUs. */ + if (virCHProcessGetAllCpuAffinity(&hostcpumap) < 0) + goto cleanup; + affinity_cpumask = hostcpumap; + } + + /* + * If CPU cgroup controller is not initialized here, then we need + * neither period nor quota settings. And if CPUSET controller is + * not initialized either, then there's nothing to do anyway. + */ + if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU) || + virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) { + + if (virDomainNumatuneGetMode(vm->def->numa, -1, &mem_mode) == 0 && + mem_mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT && + virDomainNumatuneMaybeFormatNodeset(vm->def->numa, + priv->autoNodeset, + &mem_mask, -1) < 0) + goto cleanup; + + if (virCgroupNewThread(priv->cgroup, nameval, id, true, &cgroup) < 0) + goto cleanup; + + if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) { + if (use_cpumask && + virSetupCgroupCpusetCpus(cgroup, use_cpumask) < 0) + goto cleanup; + + if (mem_mask && virCgroupSetCpusetMems(cgroup, mem_mask) < 0) + goto cleanup; + + } + + if ((period || quota) && + virSetupCgroupVcpuBW(cgroup, period, quota) < 0) + goto cleanup; + + /* Move the thread to the sub dir */ + VIR_INFO("Adding pid %d to cgroup", pid); + if (virCgroupAddThread(cgroup, pid) < 0) + goto cleanup; + + } + + if (!affinity_cpumask) + affinity_cpumask = use_cpumask; + + /* Setup legacy affinity. */ + if (affinity_cpumask + && virProcessSetAffinity(pid, affinity_cpumask, false) < 0) + goto cleanup; + + /* Set scheduler type and priority, but not for the main thread. */ + if (sched && + nameval != VIR_CGROUP_THREAD_EMULATOR && + virProcessSetScheduler(pid, sched->policy, sched->priority) < 0) + goto cleanup; + + ret = 0; + cleanup: + if (cgroup) { + if (ret < 0) + virCgroupRemove(cgroup); + virCgroupFree(cgroup); + } + + return ret; +} + +/** + * virCHProcessSetupVcpu: + * @vm: domain object + * @vcpuid: id of VCPU to set defaults + * + * This function sets resource properties (cgroups, affinity, scheduler) for a + * vCPU. This function expects that the vCPU is online and the vCPU pids were + * correctly detected at the point when it's called. + * + * Returns 0 on success, -1 on error. + */ +int +virCHProcessSetupVcpu(virDomainObj *vm, unsigned int vcpuid) +{ + pid_t vcpupid = virCHDomainGetVcpuPid(vm, vcpuid); + virDomainVcpuDef *vcpu = virDomainDefGetVcpu(vm->def, vcpuid); + + return virCHProcessSetupPid(vm, vcpupid, VIR_CGROUP_THREAD_VCPU, + vcpuid, vcpu->cpumask, + vm->def->cputune.period, + vm->def->cputune.quota, &vcpu->sched); +} + +static int +virCHProcessSetupVcpus(virDomainObj *vm) +{ + virDomainVcpuDef *vcpu; + unsigned int maxvcpus = virDomainDefGetVcpusMax(vm->def); + size_t i; + + if ((vm->def->cputune.period || vm->def->cputune.quota) && + !virCgroupHasController(((virCHDomainObjPrivate *) vm->privateData)-> + cgroup, VIR_CGROUP_CONTROLLER_CPU)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("cgroup cpu is required for scheduler tuning")); + return -1; + } + + if (!virCHDomainHasVcpuPids(vm)) { + /* If any CPU has custom affinity that differs from the + * VM default affinity, we must reject it */ + for (i = 0; i < maxvcpus; i++) { + vcpu = virDomainDefGetVcpu(vm->def, i); + + if (!vcpu->online) + continue; + + if (vcpu->cpumask && + !virBitmapEqual(vm->def->cpumask, vcpu->cpumask)) { + virReportError(VIR_ERR_OPERATION_INVALID, "%s", + _("cpu affinity is not supported")); + return -1; + } + } + + return 0; + } + + for (i = 0; i < maxvcpus; i++) { + vcpu = virDomainDefGetVcpu(vm->def, i); + + if (!vcpu->online) + continue; + + if (virCHProcessSetupVcpu(vm, i) < 0) + return -1; + } + + return 0; +} + /** * virCHProcessStart: * @driver: pointer to driver structure @@ -141,12 +391,13 @@ virCHProcessUpdateInfo(virDomainObj *vm) * * Returns 0 on success or -1 in case of error */ -int virCHProcessStart(virCHDriver *driver, - virDomainObj *vm, - virDomainRunningReason reason) +int +virCHProcessStart(virCHDriver *driver, + virDomainObj *vm, virDomainRunningReason reason) { int ret = -1; virCHDomainObjPrivate *priv = vm->privateData; + g_autoptr(virCHDriverConfig) cfg = virCHDriverGetConfig(priv->driver); g_autofree int *nicindexes = NULL; size_t nnicindexes = 0; @@ -166,18 +417,39 @@ int virCHProcessStart(virCHDriver *driver, } } + vm->pid = priv->monitor->pid; + vm->def->id = vm->pid; + priv->machineName = virCHDomainGetMachineName(vm); + + if (virSetupCgroup("ch", vm, + nnicindexes, nicindexes, + priv->cgroup, + cfg->cgroupControllers, + 0, /*maxThreadsPerProc*/ + priv->driver->privileged, + priv->machineName) < 0) + goto cleanup; + + if (virCHProcessInitCpuAffinity(vm) < 0) + goto cleanup; + if (virCHMonitorBootVM(priv->monitor) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("failed to boot guest VM")); goto cleanup; } - priv->machineName = virCHDomainGetMachineName(vm); - vm->pid = priv->monitor->pid; - vm->def->id = vm->pid; + virCHDomainRefreshThreadInfo(vm); - virCHProcessUpdateInfo(vm); + VIR_DEBUG("Setting global CPU cgroup (if required)"); + if (virSetupGlobalCpuCgroup(vm, priv->cgroup, priv->autoNodeset) < 0) + goto cleanup; + + VIR_DEBUG("Setting vCPU tuning/settings"); + if (virCHProcessSetupVcpus(vm) < 0) + goto cleanup; + virCHProcessUpdateInfo(vm); virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, reason); return 0; @@ -189,10 +461,12 @@ int virCHProcessStart(virCHDriver *driver, return ret; } -int virCHProcessStop(virCHDriver *driver G_GNUC_UNUSED, - virDomainObj *vm, - virDomainShutoffReason reason) +int +virCHProcessStop(virCHDriver *driver G_GNUC_UNUSED, + virDomainObj *vm, virDomainShutoffReason reason) { + int ret; + int retries = 0; virCHDomainObjPrivate *priv = vm->privateData; VIR_DEBUG("Stopping VM name=%s pid=%d reason=%d", @@ -203,6 +477,16 @@ int virCHProcessStop(virCHDriver *driver G_GNUC_UNUSED, priv->monitor = NULL; } + retry: + if ((ret = virRemoveCgroup(vm, priv->cgroup, priv->machineName)) < 0) { + if (ret == -EBUSY && (retries++ < 5)) { + g_usleep(200*1000); + goto retry; + } + VIR_WARN("Failed to remove cgroup for %s", + vm->def->name); + } + vm->pid = -1; vm->def->id = -1; diff --git a/src/ch/ch_process.h b/src/ch/ch_process.h index abc4915979..800e3f4e23 100644 --- a/src/ch/ch_process.h +++ b/src/ch/ch_process.h @@ -29,3 +29,6 @@ int virCHProcessStart(virCHDriver *driver, int virCHProcessStop(virCHDriver *driver, virDomainObj *vm, virDomainShutoffReason reason); + +int virCHProcessSetupVcpu(virDomainObj *vm, + unsigned int vcpuid); -- 2.27.0

From: Vineeth Pillai <viremana@linux.microsoft.com> Enable support of VIR_DRV_FEATURE_TYPED_PARAM_STRING to enable numatune Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com> Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_driver.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c index 0cc08b6c20..03db6b2bc8 100644 --- a/src/ch/ch_driver.c +++ b/src/ch/ch_driver.c @@ -944,6 +944,36 @@ static int chStateInitialize(bool privileged, return ret; } +/* Which features are supported by this driver? */ +static int +chConnectSupportsFeature(virConnectPtr conn, int feature) +{ + if (virConnectSupportsFeatureEnsureACL(conn) < 0) + return -1; + + switch ((virDrvFeature) feature) { + case VIR_DRV_FEATURE_TYPED_PARAM_STRING: + return 1; + case VIR_DRV_FEATURE_MIGRATION_V2: + case VIR_DRV_FEATURE_MIGRATION_V3: + case VIR_DRV_FEATURE_MIGRATION_P2P: + case VIR_DRV_FEATURE_MIGRATE_CHANGE_PROTECTION: + case VIR_DRV_FEATURE_FD_PASSING: + case VIR_DRV_FEATURE_XML_MIGRATABLE: + case VIR_DRV_FEATURE_MIGRATION_OFFLINE: + case VIR_DRV_FEATURE_MIGRATION_PARAMS: + case VIR_DRV_FEATURE_MIGRATION_DIRECT: + case VIR_DRV_FEATURE_MIGRATION_V1: + case VIR_DRV_FEATURE_PROGRAM_KEEPALIVE: + case VIR_DRV_FEATURE_REMOTE: + case VIR_DRV_FEATURE_REMOTE_CLOSE_CALLBACK: + case VIR_DRV_FEATURE_REMOTE_EVENT_CALLBACK: + case VIR_DRV_FEATURE_NETWORK_UPDATE_HAS_CORRECT_ORDER: + default: + return 0; + } +} + static int chDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags) { @@ -1279,6 +1309,7 @@ static virHypervisorDriver chHypervisorDriver = { .connectListAllDomains = chConnectListAllDomains, /* 7.5.0 */ .connectListDomains = chConnectListDomains, /* 7.5.0 */ .connectGetCapabilities = chConnectGetCapabilities, /* 7.5.0 */ + .connectSupportsFeature = chConnectSupportsFeature, /* 8.0.0 */ .domainCreateXML = chDomainCreateXML, /* 7.5.0 */ .domainCreate = chDomainCreate, /* 7.5.0 */ .domainCreateWithFlags = chDomainCreateWithFlags, /* 7.5.0 */ -- 2.27.0

using virCHProcessSetupPid Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com> --- src/ch/ch_monitor.c | 60 +++++++++++++++++++++++++++++++++++ src/ch/ch_monitor.h | 2 ++ src/ch/ch_process.c | 77 ++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 138 insertions(+), 1 deletion(-) diff --git a/src/ch/ch_monitor.c b/src/ch/ch_monitor.c index 4de86f3c03..1709c73181 100644 --- a/src/ch/ch_monitor.c +++ b/src/ch/ch_monitor.c @@ -921,3 +921,63 @@ virCHMonitorGetInfo(virCHMonitor *mon, virJSONValue **info) { return virCHMonitorGet(mon, URL_VM_INFO, info); } + +/** + * virCHMonitorGetIOThreads: + * @mon: Pointer to the monitor + * @iothreads: Location to return array of IOThreadInfo data + * + * Retrieve the list of iothreads defined/running for the machine + * + * Returns count of IOThreadInfo structures on success + * -1 on error. + */ +int virCHMonitorGetIOThreads(virCHMonitor *mon, + virDomainIOThreadInfo ***iothreads) +{ + size_t nthreads = 0, niothreads = 0; + int thd_index; + virDomainIOThreadInfo **iothreadinfolist = NULL, *iothreadinfo = NULL; + + *iothreads = NULL; + nthreads = virCHMonitorRefreshThreadInfo(mon); + + iothreadinfolist = g_new0(virDomainIOThreadInfo*, nthreads); + + for (thd_index = 0; thd_index < nthreads; thd_index++) { + virBitmap *map = NULL; + if (mon->threads[thd_index].type == virCHThreadTypeIO) { + iothreadinfo = g_new0(virDomainIOThreadInfo, 1); + + iothreadinfo->iothread_id = mon->threads[thd_index].ioInfo.tid; + + if (!(map = virProcessGetAffinity(iothreadinfo->iothread_id))) + goto cleanup; + + if (virBitmapToData(map, &(iothreadinfo->cpumap), + &(iothreadinfo->cpumaplen)) < 0) { + virBitmapFree(map); + goto cleanup; + } + virBitmapFree(map); + //Append to iothreadinfolist + iothreadinfolist[niothreads] = iothreadinfo; + niothreads++; + } + } + VIR_DELETE_ELEMENT_INPLACE(iothreadinfolist, + niothreads, nthreads); + *iothreads = iothreadinfolist; + VIR_DEBUG("niothreads = %ld", niothreads); + return niothreads; + + cleanup: + if (iothreadinfolist) { + for (thd_index = 0; thd_index < niothreads; thd_index++) + VIR_FREE(iothreadinfolist[thd_index]); + VIR_FREE(iothreadinfolist); + } + if (iothreadinfo) + VIR_FREE(iothreadinfo); + return -1; +} diff --git a/src/ch/ch_monitor.h b/src/ch/ch_monitor.h index f8c3fa75e8..98edb0faf9 100644 --- a/src/ch/ch_monitor.h +++ b/src/ch/ch_monitor.h @@ -118,3 +118,5 @@ int virCHMonitorGetCPUInfo(virCHMonitor *mon, size_t maxvcpus); size_t virCHMonitorGetThreadInfo(virCHMonitor *mon, bool refresh, virCHMonitorThreadInfo **threads); +int virCHMonitorGetIOThreads(virCHMonitor *mon, + virDomainIOThreadInfo ***iothreads); diff --git a/src/ch/ch_process.c b/src/ch/ch_process.c index 56c8d4216d..1af89e0d9e 100644 --- a/src/ch/ch_process.c +++ b/src/ch/ch_process.c @@ -41,7 +41,6 @@ VIR_LOG_INIT("ch.ch_process"); #define START_VM_POSTFIX ": starting up vm\n" - static virCHMonitor * virCHProcessConnectMonitor(virCHDriver *driver, virDomainObj *vm) @@ -310,6 +309,74 @@ virCHProcessSetupPid(virDomainObj *vm, return ret; } +static int +virCHProcessSetupIOThread(virDomainObj *vm, + virDomainIOThreadInfo *iothread) +{ + virCHDomainObjPrivate *priv = vm->privateData; + return virCHProcessSetupPid(vm, iothread->iothread_id, + VIR_CGROUP_THREAD_IOTHREAD, + iothread->iothread_id, + priv->autoCpuset, // This should be updated when CLH supports accepting + // iothread settings from input domain definition + vm->def->cputune.iothread_period, + vm->def->cputune.iothread_quota, + NULL); // CLH doesn't allow choosing a scheduler for iothreads. +} + +static int +virCHProcessSetupIOThreads(virDomainObj *vm) +{ + virCHDomainObjPrivate *priv = vm->privateData; + virDomainIOThreadInfo **iothreads = NULL; + size_t i; + size_t niothreads; + + niothreads = virCHMonitorGetIOThreads(priv->monitor, &iothreads); + for (i = 0; i < niothreads; i++) { + VIR_DEBUG("IOThread index = %ld , tid = %d", i, iothreads[i]->iothread_id); + if (virCHProcessSetupIOThread(vm, iothreads[i]) < 0) + return -1; + } + return 0; +} + + +static int +virCHProcessSetupEmulatorThread(virDomainObj *vm, + virCHMonitorEmuThreadInfo emuthread) +{ + return virCHProcessSetupPid(vm, emuthread.tid, VIR_CGROUP_THREAD_EMULATOR, + 0, vm->def->cputune.emulatorpin, + vm->def->cputune.emulator_period, + vm->def->cputune.emulator_quota, + vm->def->cputune.emulatorsched); +} + +static int +virCHProcessSetupEmulatorThreads(virDomainObj *vm) +{ + int thd_index = 0; + virCHDomainObjPrivate *priv = vm->privateData; + /* + * Cloud-hypervisor start 4 Emulator threads by default: + * vmm + * cloud-hypervisor + * http-server + * signal_handler + */ + for (thd_index = 0; thd_index < priv->monitor->nthreads; thd_index++) { + if (priv->monitor->threads[thd_index].type == virCHThreadTypeEmulator) { + VIR_DEBUG("Setup tid = %d (%s) Emulator thread", priv->monitor->threads[thd_index].emuInfo.tid, + priv->monitor->threads[thd_index].emuInfo.thrName); + + if (virCHProcessSetupEmulatorThread(vm, priv->monitor->threads[thd_index].emuInfo) < 0) + return -1; + } + } + return 0; +} + /** * virCHProcessSetupVcpu: * @vm: domain object @@ -441,6 +508,14 @@ virCHProcessStart(virCHDriver *driver, virCHDomainRefreshThreadInfo(vm); + VIR_DEBUG("Setting emulator tuning/settings"); + if (virCHProcessSetupEmulatorThreads(vm) < 0) + goto cleanup; + + VIR_DEBUG("Setting iothread tuning/settings"); + if (virCHProcessSetupIOThreads(vm) < 0) + goto cleanup; + VIR_DEBUG("Setting global CPU cgroup (if required)"); if (virSetupGlobalCpuCgroup(vm, priv->cgroup, priv->autoNodeset) < 0) goto cleanup; -- 2.27.0