June 2012 - Devel - libvirt List Archives

[libvirt] [PATCH 0/5] Basic Enablement of s390
by Viktor Mihajlovski 22 Jun '12

22 Jun '12

Hi, although there's already some code in libvirt for qemu on s390 it has experienced a certain level of degradation over time. Or, to put it short: it is not compatible with upstream qemu/kvm. This is the first series of patches aimed to enable libvirt to manage qemu/kvm domains hosted on the s390 platform. The patches in this series address s390 specifics of node and hypervisor. Patches 2,3 and 5 are written by Thang Pham <thang.pham(a)us.ibm.com> the others are my doing. Since they all should go together, I am sending in Thang's as well, hoping to facilitate the review a bit this way. Thang Pham (3): S390: CPU support for s390(x) S390: Fixed Parser for /proc/cpuinfo needs to be adapted for your architecture S390: Added sysinfo for host on s390x. Viktor Mihajlovski (2): S390: Override QEMU_CAPS_NO_ACPI for s390x S390: Fixed core identification for s390 src/Makefile.am | 1 + src/cpu/cpu.c | 2 + src/cpu/cpu_s390x.c | 80 ++++++++++++++++++++++ src/cpu/cpu_s390x.h | 31 +++++++++ src/nodeinfo.c | 11 +++ src/qemu/qemu_capabilities.c | 5 ++ src/util/sysinfo.c | 154 ++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 284 insertions(+), 0 deletions(-) create mode 100644 src/cpu/cpu_s390x.c create mode 100644 src/cpu/cpu_s390x.h -- Mit freundlichen Grüßen/Kind Regards Viktor Mihajlovski IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294

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[libvirt] [PATCH][libvirt-sandbox] configure: Require higher version of glib
by Michal Privoznik 22 Jun '12

22 Jun '12

Since commit cfd4460b we must require glib-2.32.0 at least because we are using g_value_set_schar which was introduced in that release. --- configure.ac | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/configure.ac b/configure.ac index f8956c4..8d91440 100644 --- a/configure.ac +++ b/configure.ac @@ -11,7 +11,7 @@ AC_CANONICAL_HOST AM_SILENT_RULES([yes]) GIO_UNIX_REQUIRED=2.28.0 -GOBJECT_REQUIRED=2.28.0 +GOBJECT_REQUIRED=2.32.0 LIBVIRT_GLIB_REQUIRED=0.0.4 LIBVIRT_GOBJECT_REQUIRED=0.0.7 GOBJECT_INTROSPECTION_REQUIRED=0.10.8 -- 1.7.8.5

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[libvirt] [PATCH 1/5] S390: Override QEMU_CAPS_NO_ACPI for s390x
by Viktor Mihajlovski 22 Jun '12

22 Jun '12

Starting a KVM guest on s390 fails immediately. This is because "qemu --help" reports -no-acpi even for the s390(x) architecture but -no-acpi isn't supported there. Workaround is to remove QEMU_CAPS_NO_ACPI from the capability set after the version/capability extraction. Signed-off-by: Viktor Mihajlovski <mihajlov(a)linux.vnet.ibm.com> --- src/qemu/qemu_capabilities.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 4308833..0c01cb0 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1511,6 +1511,11 @@ int qemuCapsExtractVersionInfo(const char *qemu, const char *arch, qemuCapsSet(flags, QEMU_CAPS_PCI_MULTIBUS); } + /* S390 and probably other archs do not support no-acpi - + maybe the qemu option parsing should be re-thought. */ + if (STREQLEN(arch, "s390x", 5)) + qemuCapsClear(flags, QEMU_CAPS_NO_ACPI); + /* qemuCapsExtractDeviceStr will only set additional flags if qemu * understands the 0.13.0+ notion of "-device driver,". */ if (qemuCapsGet(flags, QEMU_CAPS_DEVICE) && -- 1.7.0.4 -- Mit freundlichen Grüßen/Kind Regards Viktor Mihajlovski IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294

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[libvirt] [PATCH libvirt-glib] Add async version of gvir_domain_start
by Marc-André Lureau 22 Jun '12

22 Jun '12

--- libvirt-gobject/libvirt-gobject-domain.c | 75 ++++++++++++++++++++++++++++++ libvirt-gobject/libvirt-gobject-domain.h | 9 ++++ libvirt-gobject/libvirt-gobject.sym | 3 ++ 3 files changed, 87 insertions(+) diff --git a/libvirt-gobject/libvirt-gobject-domain.c b/libvirt-gobject/libvirt-gobject-domain.c index 59af63f..088cd33 100644 --- a/libvirt-gobject/libvirt-gobject-domain.c +++ b/libvirt-gobject/libvirt-gobject-domain.c @@ -345,6 +345,81 @@ gboolean gvir_domain_start(GVirDomain *dom, return TRUE; } +typedef struct { + guint flags; +} DomainStartData; + +static void domain_start_data_free(DomainStartData *data) +{ + g_slice_free(DomainStartData, data); +} + +static void +gvir_domain_start_helper(GSimpleAsyncResult *res, + GObject *object, + GCancellable *cancellable G_GNUC_UNUSED) +{ + GVirDomain *dom = GVIR_DOMAIN(object); + DomainStartData *data; + GError *err = NULL; + + data = g_simple_async_result_get_op_res_gpointer(res); + + if (!gvir_domain_start(dom, data->flags, &err)) + g_simple_async_result_take_error(res, err); +} + +/** + * gvir_domain_start_async: + * @dom: the domain + * @flags: the flags + * @cancellable: (allow-none)(transfer none): cancellation object + * @callback: (scope async): completion callback + * @user_data: (closure): opaque data for callback + * + * Asynchronous variant of #gvir_domain_start. + */ +void gvir_domain_start_async(GVirDomain *dom, + guint flags, + GCancellable *cancellable, + GAsyncReadyCallback callback, + gpointer user_data) +{ + GSimpleAsyncResult *res; + DomainStartData *data; + + g_return_if_fail(GVIR_IS_DOMAIN(dom)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + + data = g_slice_new0(DomainStartData); + data->flags = flags; + + res = g_simple_async_result_new(G_OBJECT(dom), + callback, + user_data, + gvir_domain_start_async); + g_simple_async_result_set_op_res_gpointer (res, data, (GDestroyNotify)domain_start_data_free); + g_simple_async_result_run_in_thread(res, + gvir_domain_start_helper, + G_PRIORITY_DEFAULT, + cancellable); + g_object_unref(res); +} + +gboolean gvir_domain_start_finish(GVirDomain *dom, + GAsyncResult *result, + GError **err) +{ + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(g_simple_async_result_is_valid(result, G_OBJECT(dom), gvir_domain_start_async), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + + if (g_simple_async_result_propagate_error(G_SIMPLE_ASYNC_RESULT(result), err)) + return FALSE; + + return TRUE; +} + /** * gvir_domain_resume: * @dom: the domain diff --git a/libvirt-gobject/libvirt-gobject-domain.h b/libvirt-gobject/libvirt-gobject-domain.h index 677fbe6..87b94f4 100644 --- a/libvirt-gobject/libvirt-gobject-domain.h +++ b/libvirt-gobject/libvirt-gobject-domain.h @@ -124,6 +124,15 @@ gint gvir_domain_get_id(GVirDomain *dom, gboolean gvir_domain_start(GVirDomain *dom, guint flags, GError **err); +void gvir_domain_start_async(GVirDomain *dom, + guint flags, + GCancellable *cancellable, + GAsyncReadyCallback callback, + gpointer user_data); +gboolean gvir_domain_start_finish(GVirDomain *dom, + GAsyncResult *result, + GError **err); + gboolean gvir_domain_resume(GVirDomain *dom, GError **err); gboolean gvir_domain_stop(GVirDomain *dom, diff --git a/libvirt-gobject/libvirt-gobject.sym b/libvirt-gobject/libvirt-gobject.sym index 7121794..94e441a 100644 --- a/libvirt-gobject/libvirt-gobject.sym +++ b/libvirt-gobject/libvirt-gobject.sym @@ -165,6 +165,9 @@ LIBVIRT_GOBJECT_0.0.9 { gvir_connection_get_capabilities; gvir_connection_get_capabilities_async; gvir_connection_get_capabilities_finish; + + gvir_domain_start_async; + gvir_domain_start_finish; } LIBVIRT_GOBJECT_0.0.8; # .... define new API here using predicted next version number .... -- 1.7.10.2

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[libvirt] [PATCH] virsh: Improve error when trying to change vm's cpu count 0
by Peter Krempa 22 Jun '12

22 Jun '12

This patch adds a check for the count of processors the user requests for the guest machine so that invalid values produce a more helpful error message. --- tools/virsh.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 55cbe2b..2ec84cd 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -5755,7 +5755,7 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return false; - if (vshCommandOptInt(cmd, "count", &count) < 0) { + if (vshCommandOptInt(cmd, "count", &count) < 0 || count <= 0) { vshError(ctl, "%s", _("Invalid number of virtual CPUs")); goto cleanup; } -- 1.7.8.6

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[libvirt] [PATCH] Add support for shared sanlock leases
by Daniel P. Berrange 22 Jun '12

22 Jun '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> A sanlock lease can be marked as shared (rather than exclusive) using SANLK_RES_SHARED flag. This adds support for that flag and ensures that in auto disk mode, any shared disks use shared leases. This also makes any read-only disks be completely ignored. These changes remove the need for the option ignore_readonly_and_shared_disks so that is removed Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/locking/lock_driver_sanlock.c | 38 +++++++++++-------------------- src/locking/sanlock.conf | 7 ------ src/locking/test_libvirt_sanlock.aug.in | 1 - 3 files changed, 13 insertions(+), 33 deletions(-) diff --git a/src/locking/lock_driver_sanlock.c b/src/locking/lock_driver_sanlock.c index 146aefd..16941c9 100644 --- a/src/locking/lock_driver_sanlock.c +++ b/src/locking/lock_driver_sanlock.c @@ -65,7 +65,6 @@ struct _virLockManagerSanlockDriver { bool requireLeaseForDisks; int hostID; bool autoDiskLease; - bool ignoreReadonlyShared; char *autoDiskLeasePath; }; @@ -115,10 +114,6 @@ static int virLockManagerSanlockLoadConfig(const char *configFile) CHECK_TYPE("auto_disk_leases", VIR_CONF_LONG); if (p) driver->autoDiskLease = p->l; - p = virConfGetValue(conf, "ignore_readonly_and_shared_disks"); - CHECK_TYPE("ignore_readonly_and_shared_disks", VIR_CONF_LONG); - if (p) driver->ignoreReadonlyShared = p->l; - p = virConfGetValue(conf, "disk_lease_dir"); CHECK_TYPE("disk_lease_dir", VIR_CONF_STRING); if (p && p->str) { @@ -428,7 +423,8 @@ static int virLockManagerSanlockDiskLeaseName(const char *path, static int virLockManagerSanlockAddLease(virLockManagerPtr lock, const char *name, size_t nparams, - virLockManagerParamPtr params) + virLockManagerParamPtr params, + bool shared) { virLockManagerSanlockPrivatePtr priv = lock->privateData; int ret = -1; @@ -440,6 +436,7 @@ static int virLockManagerSanlockAddLease(virLockManagerPtr lock, goto cleanup; } + res->flags = shared ? SANLK_RES_SHARED : 0; res->num_disks = 1; if (!virStrcpy(res->name, name, SANLK_NAME_LEN)) { virLockError(VIR_ERR_INTERNAL_ERROR, @@ -485,7 +482,8 @@ cleanup: static int virLockManagerSanlockAddDisk(virLockManagerPtr lock, const char *name, size_t nparams, - virLockManagerParamPtr params ATTRIBUTE_UNUSED) + virLockManagerParamPtr params ATTRIBUTE_UNUSED, + bool shared) { virLockManagerSanlockPrivatePtr priv = lock->privateData; int ret = -1; @@ -503,6 +501,7 @@ static int virLockManagerSanlockAddDisk(virLockManagerPtr lock, goto cleanup; } + res->flags = shared ? SANLK_RES_SHARED : 0; res->num_disks = 1; if (virLockManagerSanlockDiskLeaseName(name, res->name, SANLK_NAME_LEN) < 0) goto cleanup; @@ -630,27 +629,15 @@ static int virLockManagerSanlockAddResource(virLockManagerPtr lock, return -1; } - if ((flags & (VIR_LOCK_MANAGER_RESOURCE_READONLY | - VIR_LOCK_MANAGER_RESOURCE_SHARED)) && - driver->ignoreReadonlyShared) { - return 0; - } - - if (flags & VIR_LOCK_MANAGER_RESOURCE_READONLY) { - virLockError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("Readonly leases are not supported")); - return -1; - } - if (flags & VIR_LOCK_MANAGER_RESOURCE_SHARED) { - virLockError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("Shareable leases are not supported")); - return -1; - } + /* Treat R/O resources as a no-op lock request */ + if (flags & VIR_LOCK_MANAGER_RESOURCE_READONLY) + return 0; switch (type) { case VIR_LOCK_MANAGER_RESOURCE_TYPE_DISK: if (driver->autoDiskLease) { - if (virLockManagerSanlockAddDisk(lock, name, nparams, params) < 0) + if (virLockManagerSanlockAddDisk(lock, name, nparams, params, + !!(flags & VIR_LOCK_MANAGER_RESOURCE_SHARED)) < 0) return -1; if (virLockManagerSanlockCreateLease(priv->res_args[priv->res_count-1]) < 0) @@ -664,7 +651,8 @@ static int virLockManagerSanlockAddResource(virLockManagerPtr lock, break; case VIR_LOCK_MANAGER_RESOURCE_TYPE_LEASE: - if (virLockManagerSanlockAddLease(lock, name, nparams, params) < 0) + if (virLockManagerSanlockAddLease(lock, name, nparams, params, + !!(flags & VIR_LOCK_MANAGER_RESOURCE_SHARED)) < 0) return -1; break; diff --git a/src/locking/sanlock.conf b/src/locking/sanlock.conf index 19ab2b3..efc35ee 100644 --- a/src/locking/sanlock.conf +++ b/src/locking/sanlock.conf @@ -52,10 +52,3 @@ # to enabled, otherwise it defaults to disabled. # #require_lease_for_disks = 1 - -# -# Enable this flag to have sanlock ignore readonly and shared disks. -# If disabled, then this rejects attempts to share resources until -# sanlock gains support for shared locks. -# -#ignore_readonly_and_shared_disks = 1 diff --git a/src/locking/test_libvirt_sanlock.aug.in b/src/locking/test_libvirt_sanlock.aug.in index 1f05558..288f329 100644 --- a/src/locking/test_libvirt_sanlock.aug.in +++ b/src/locking/test_libvirt_sanlock.aug.in @@ -6,4 +6,3 @@ module Test_libvirt_sanlock = { "disk_lease_dir" = "/var/lib/libvirt/sanlock" } { "host_id" = "1" } { "require_lease_for_disks" = "1" } -{ "ignore_readonly_and_shared_disks" = "1" } -- 1.7.10.2

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[libvirt] [PATCH] Allow NOCONFIGURE=1 to make autogen.sh skip ./configure
by Daniel P. Berrange 22 Jun '12

22 Jun '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Sometimes it is useful to re-bootstrap libvirt without running through a ./configure invocation immediately. eg if you want to run ./configure for Mingw32 rather than native. --- autogen.sh | 2 ++ 1 file changed, 2 insertions(+) diff --git a/autogen.sh b/autogen.sh index f1591d8..95598e2 100755 --- a/autogen.sh +++ b/autogen.sh @@ -70,6 +70,8 @@ if test -d .git; then fi fi +test -n "$NOCONFIGURE" && exit 0 + cd "$THEDIR" if test "x$OBJ_DIR" != x; then -- 1.7.10.2

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[libvirt] [PATCH] Fix unused parameters / functions in virsh on Win32
by Daniel P. Berrange 22 Jun '12

22 Jun '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> The vshPrintRaw function is not used on Win32, and neither is the 'msg' parameter of vshAskReedit. Change the nesting of #ifdef WIN32 conditionals to address this --- tools/virsh.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 1b4f771..b84c4bc 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -655,6 +655,7 @@ vshReconnect(vshControl *ctl) ctl->useSnapshotOld = false; } +#ifndef WIN32 static void vshPrintRaw(vshControl *ctl, ...) { @@ -684,7 +685,6 @@ vshPrintRaw(vshControl *ctl, ...) static int vshAskReedit(vshControl *ctl, const char *msg) { -#ifndef WIN32 int c = -1; struct termios ttyattr; @@ -720,12 +720,16 @@ vshAskReedit(vshControl *ctl, const char *msg) vshPrint(ctl, "\r\n"); return c; +} #else +static int +vshAskReedit(vshControl *ctl, const char *msg ATTRIBUTE_UNUSED) +{ vshDebug(ctl, VSH_ERR_WARNING, "%s", _("This function is not " "supported on WIN32 platform")); return 0; -#endif } +#endif /* --------------- * Commands -- 1.7.10.2

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[libvirt] [PATCH] winsock2.h must always be included before windows.h
by Daniel P. Berrange 22 Jun '12

22 Jun '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Some GNULIB headers (eg unistd.h) will often need to include winsock2.h for various symbols. There is a rule that winsock2.h must be included before windows.h. This means that any file which does #ifdef WIN32 #include <windows.h> #endif #include <unistd.h> is potentially broken. A simple rule is that /all/ includes of windows.h must be matched with a preceeding include of winsock2.h regardless of whether unistd.h is used currently --- src/util/util.c | 3 +++ src/vbox/vbox_MSCOMGlue.c | 3 +++ 2 files changed, 6 insertions(+) diff --git a/src/util/util.c b/src/util/util.c index 28a4fe7..a71b0d6 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -65,6 +65,9 @@ #endif #ifdef WIN32 +# ifdef HAVE_WINSOCK2_H +# include <winsock2.h> +# endif # include <windows.h> # include <shlobj.h> #endif diff --git a/src/vbox/vbox_MSCOMGlue.c b/src/vbox/vbox_MSCOMGlue.c index b07d6a7..68810fb 100644 --- a/src/vbox/vbox_MSCOMGlue.c +++ b/src/vbox/vbox_MSCOMGlue.c @@ -22,6 +22,9 @@ #include <config.h> +#ifdef HAVE_WINSOCK2_H +# include <winsock2.h> +#endif #include <windows.h> #define nsCID CLSID -- 1.7.10.2

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[libvirt] [PATCH] Update to latest GNULIB to fix compat with Mingw64 toolchain
by Daniel P. Berrange 22 Jun '12

22 Jun '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> On both x86_64-w64-mingw32 and i686-w64-mingw32 there were the following warnings/errors: CC fstat.lo ../../../gnulib/lib/fstat.c:27:0: warning: "stat" redefined [enabled by default] In file included from ./sys/stat.h:32:0, from ../../../gnulib/lib/fstat.c:25: /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/stat.h:258:0: note: this is the location of the previous definition ../../../gnulib/lib/fstat.c:28:0: warning: "fstat" redefined [enabled by default] In file included from ./sys/stat.h:32:0, from ../../../gnulib/lib/fstat.c:25: /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/stat.h:259:0: note: this is the location of the previous definition CC stat.lo ../../../gnulib/lib/stat.c:32:0: warning: "stat" redefined [enabled by default] In file included from ./sys/stat.h:32:0, from ../../../gnulib/lib/stat.c:27: /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/stat.h:258:0: note: this is the location of the previous definition CC stdio-read.lo ../../../gnulib/lib/stdio-read.c:102:1: error: redefinition of 'vscanf' In file included from ./stdio.h:43:0, from ../../../gnulib/lib/stdio-read.c:21: /usr/x86_64-w64-mingw32/sys-root/mingw/include/stdio.h:397:7: note: previous definition of 'vscanf' was here ../../../gnulib/lib/stdio-read.c:108:1: error: redefinition of 'vfscanf' In file included from ./stdio.h:43:0, from ../../../gnulib/lib/stdio-read.c:21: /usr/x86_64-w64-mingw32/sys-root/mingw/include/stdio.h:384:7: note: previous definition of 'vfscanf' was here make[3]: *** [stdio-read.lo] Error 1 make[3]: Leaving directory `/home/berrange/src/virt/libvirt/build/gnulib/lib' While on x86_64-w64-mingw32 only there was: In file included from ../../../gnulib/lib/regex.c:69:0: ../../../gnulib/lib/regcomp.c: In function 'parse_dup_op': ../../../gnulib/lib/regcomp.c:2624:39: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../../../gnulib/lib/regcomp.c: In function 'mark_opt_subexp': ../../../gnulib/lib/regcomp.c:3859:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] --- .gnulib | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.gnulib b/.gnulib index 77cef20..a02ba4b 160000 --- a/.gnulib +++ b/.gnulib @@ -1 +1 @@ -Subproject commit 77cef2022004c4066e805da09a83b2c77f17bdd3 +Subproject commit a02ba4bf889fee4622db87f185c3d0af84d74ae7 -- 1.7.10.2

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