10:50 a.m.
v1:
https://www.redhat.com/archives/libvir-list/2013-May/msg00173.html
v2:
https://www.redhat.com/archives/libvir-list/2013-May/msg00184.html
uses virStringSplit instead of strsep
added a missing break to virDomainDefParseXML
v3:
rebased to use VIR_STRDUP
fixed a crash on parsing '-cpu qemu32,hv_'
Ján Tomko (2):
qemu: simplify CPU command line parsing
qemu: add hv_vapic and hv_spinlocks support
docs/formatdomain.html.in | 17 ++-
docs/schemas/domaincommon.rng | 12 ++
src/conf/domain_conf.c | 40 +++++-
src/conf/domain_conf.h | 3 +
src/qemu/qemu_command.c | 161 ++++++++++++++----------
tests/qemuxml2argvdata/qemuxml2argv-hyperv.args | 2 +-
tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml | 2 +
7 files changed, 170 insertions(+), 67 deletions(-)
--
1.8.1.5
10:50 a.m.
New subject: [libvirt] [PATCH v3 1/2] qemu: simplify CPU command line parsing
Use virStringSplit. Change the 'error' label to 'cleanup' to prevent
memory leaks on error.
---
src/qemu/qemu_command.c | 117 +++++++++++++++++++++---------------------------
1 file changed, 52 insertions(+), 65 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c4a162a..5513e28 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -9622,73 +9622,68 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
const char *val)
{
virCPUDefPtr cpu = NULL;
- const char *p = val;
- const char *next;
+ char **tokens;
char *model = NULL;
+ int ret = -1;
+ int i;
- do {
- if (*p == '\0' || *p == ',')
- goto syntax;
+ if (!(tokens = virStringSplit(val, ",", 0)))
+ goto cleanup;
- if ((next = strchr(p, ',')))
- next++;
+ if (tokens[0] == NULL)
+ goto syntax;
- if (p == val) {
- if (VIR_STRNDUP(model, p, next ? next - p - 1 : -1) < 0)
- goto error;
+ for (i = 0; tokens[i] != NULL; i++) {
+ if (*tokens[i] == '\0')
+ goto syntax;
+
+ if (i == 0) {
+ if (VIR_STRDUP(model, tokens[i]) < 0)
+ goto cleanup;
if (!STREQ(model, "qemu32") && !STREQ(model,
"qemu64")) {
if (!(cpu = qemuInitGuestCPU(dom)))
- goto error;
+ goto cleanup;
cpu->model = model;
model = NULL;
}
- } else if (*p == '+' || *p == '-') {
- char *feature;
+ } else if (*tokens[i] == '+' || *tokens[i] == '-') {
+ const char *feature = tokens[i] + 1; /* '+' or '-' */
int policy;
- int ret = 0;
- if (*p == '+')
+ if (*tokens[i] == '+')
policy = VIR_CPU_FEATURE_REQUIRE;
else
policy = VIR_CPU_FEATURE_DISABLE;
- p++;
- if (*p == '\0' || *p == ',')
+ if (*feature == '\0')
goto syntax;
- if (VIR_STRNDUP(feature, p, next ? next - p - 1 : -1) < 0)
- goto error;
-
if (STREQ(feature, "kvmclock")) {
bool present = (policy == VIR_CPU_FEATURE_REQUIRE);
- int i;
+ int j;
- for (i = 0; i < dom->clock.ntimers; i++) {
- if (dom->clock.timers[i]->name ==
VIR_DOMAIN_TIMER_NAME_KVMCLOCK) {
+ for (j = 0; j < dom->clock.ntimers; j++) {
+ if (dom->clock.timers[j]->name ==
VIR_DOMAIN_TIMER_NAME_KVMCLOCK)
break;
- }
}
- if (i == dom->clock.ntimers) {
- if (VIR_REALLOC_N(dom->clock.timers, i+1) < 0 ||
- VIR_ALLOC(dom->clock.timers[i]) < 0)
+ if (j == dom->clock.ntimers) {
+ if (VIR_REALLOC_N(dom->clock.timers, j + 1) < 0 ||
+ VIR_ALLOC(dom->clock.timers[j]) < 0)
goto no_memory;
- dom->clock.timers[i]->name = VIR_DOMAIN_TIMER_NAME_KVMCLOCK;
- dom->clock.timers[i]->present = -1;
- dom->clock.timers[i]->tickpolicy = -1;
- dom->clock.timers[i]->track = -1;
+ dom->clock.timers[j]->name = VIR_DOMAIN_TIMER_NAME_KVMCLOCK;
+ dom->clock.timers[j]->present = present;
+ dom->clock.timers[j]->tickpolicy = -1;
+ dom->clock.timers[j]->track = -1;
dom->clock.ntimers++;
- }
-
- if (dom->clock.timers[i]->present != -1 &&
- dom->clock.timers[i]->present != present) {
+ } else if (dom->clock.timers[j]->present != -1 &&
+ dom->clock.timers[j]->present != present) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("conflicting occurrences of kvmclock
feature"));
- goto error;
+ goto cleanup;
}
- dom->clock.timers[i]->present = present;
} else if (STREQ(feature, "kvm_pv_eoi")) {
if (policy == VIR_CPU_FEATURE_REQUIRE)
dom->apic_eoi = VIR_DOMAIN_FEATURE_STATE_ON;
@@ -9697,36 +9692,29 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
} else {
if (!cpu) {
if (!(cpu = qemuInitGuestCPU(dom)))
- goto error;
+ goto cleanup;
cpu->model = model;
model = NULL;
}
- ret = virCPUDefAddFeature(cpu, feature, policy);
+ if (virCPUDefAddFeature(cpu, feature, policy) < 0)
+ goto cleanup;
}
-
- VIR_FREE(feature);
- if (ret < 0)
- goto error;
- } else if (STRPREFIX(p, "hv_")) {
- char *feature;
+ } else if (STRPREFIX(tokens[i], "hv_")) {
+ const char *feature = tokens[i] + 3; /* "hv_" */
int f;
- p += 3; /* "hv_" */
- if (*p == '\0' || *p == ',')
+ if (*feature == '\0')
goto syntax;
- if (VIR_STRNDUP(feature, p, next ? next - p - 1 : -1) < 0)
- goto error;
-
dom->features |= (1 << VIR_DOMAIN_FEATURE_HYPERV);
if ((f = virDomainHypervTypeFromString(feature)) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported HyperV Enlightenment feature "
"'%s'"), feature);
- goto error;
+ goto cleanup;
}
switch ((enum virDomainHyperv) f) {
@@ -9737,21 +9725,17 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
case VIR_DOMAIN_HYPERV_LAST:
break;
}
-
- VIR_FREE(feature);
}
- } while ((p = next));
+ }
if (dom->os.arch == VIR_ARCH_X86_64) {
bool is_32bit = false;
if (cpu) {
union cpuData *cpuData = NULL;
- int ret;
- ret = cpuEncode(VIR_ARCH_X86_64, cpu, NULL, &cpuData,
- NULL, NULL, NULL, NULL);
- if (ret < 0)
- goto error;
+ if (cpuEncode(VIR_ARCH_X86_64, cpu, NULL, &cpuData,
+ NULL, NULL, NULL, NULL) < 0)
+ goto cleanup;
is_32bit = (cpuHasFeature(VIR_ARCH_X86_64, cpuData, "lm") != 1);
cpuDataFree(VIR_ARCH_X86_64, cpuData);
@@ -9759,22 +9743,25 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
is_32bit = STREQ(model, "qemu32");
}
- if (is_32bit) {
+ if (is_32bit)
dom->os.arch = VIR_ARCH_I686;
- }
}
+
+ ret = 0;
+
+cleanup:
VIR_FREE(model);
- return 0;
+ virStringFreeList(tokens);
+ return ret;
syntax:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown CPU syntax '%s'"), val);
- goto error;
+ goto cleanup;
no_memory:
virReportOOMError();
-error:
- return -1;
+ goto cleanup;
}
--
1.8.1.5
4:58 a.m.
New subject: [libvirt] [PATCH v3 1/2] qemu: simplify CPU command line parsing
On 06/05/13 17:50, Ján Tomko wrote:
Use virStringSplit. Change the 'error' label to
'cleanup' to prevent
memory leaks on error.
---
src/qemu/qemu_command.c | 117 +++++++++++++++++++++---------------------------
1 file changed, 52 insertions(+), 65 deletions(-)
ACK.
Peter
10:39 a.m.
New subject: [libvirt] [PATCH v3 1/2] qemu: simplify CPU command line parsing
On 06/06/2013 11:58 AM, Peter Krempa wrote:
On 06/05/13 17:50, Ján Tomko wrote:
> Use virStringSplit. Change the 'error' label to 'cleanup' to prevent
> memory leaks on error.
> ---
> src/qemu/qemu_command.c | 117
> +++++++++++++++++++++---------------------------
> 1 file changed, 52 insertions(+), 65 deletions(-)
>
ACK.
Thanks, pushed now.
Jan
10:50 a.m.
New subject: [libvirt] [PATCH v3 2/2] qemu: add hv_vapic and hv_spinlocks support
Add new CPU flags for HyperV:
hv_vapic for virtual APIC support
hv_spinlocks for spinlock support
XML:
<features>
<hyperv>
<vapic state='on'/>
<spinlocks>0xFFFF</spinlocks>
</hyperv>
</features>
results in the following QEMU command line:
qemu -cpu <cpu_model>,hv_vapic,hv_spinlocks=0xffff
https://bugzilla.redhat.com/show_bug.cgi?id=784836
---
docs/formatdomain.html.in | 17 ++++++++-
docs/schemas/domaincommon.rng | 12 +++++++
src/conf/domain_conf.c | 40 ++++++++++++++++++++-
src/conf/domain_conf.h | 3 ++
src/qemu/qemu_command.c | 48 ++++++++++++++++++++++++-
tests/qemuxml2argvdata/qemuxml2argv-hyperv.args | 2 +-
tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml | 2 ++
7 files changed, 120 insertions(+), 4 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 755d084..983e070 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -1147,6 +1147,8 @@
<privnet/>
<hyperv>
<relaxed state='on'/>
+ <vapic state='on'/>
+ <spinlocks>0xFFFF</spinlocks>
</hyperv>
</features>
@@ -1197,14 +1199,27 @@
<th>Feature</th>
<th>Description</th>
<th>Value</th>
+ <th>Since</th>
</tr>
<tr>
<td>relaxed</td>
<td>Relax contstraints on timers</td>
<td> on, off</td>
+ <td><span class="since">1.0.0 (QEMU
only)</span></td>
+ </tr>
+ <tr>
+ <td>vapic</td>
+ <td>Enable virtual APIC</td>
+ <td>on, off</td>
+ <td><span class="since">1.0.6 (QEMU
only)</span></td>
+ </tr>
+ <tr>
+ <td>spinlocks</td>
+ <td>Enable spinlock support</td>
+ <td>hexadecimal number of retries, at least 0xFFF</td>
+ <td><span class="since">1.0.6 (QEMU
only)</span></td>
</tr>
</table>
- <span class="since">Since 1.0.0 (QEMU only)</span>
</dd>
</dl>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 3cace35..ff14f34 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -4017,6 +4017,18 @@
<ref name="hypervtristate"/>
</element>
</optional>
+ <optional>
+ <element name="vapic">
+ <ref name="hypervtristate"/>
+ </element>
+ </optional>
+ <optional>
+ <element name="spinlocks">
+ <data type="string">
+ <param name="pattern">0x[0-9a-fA-F]{0,8}</param>
+ </data>
+ </element>
+ </optional>
</interleave>
</element>
</define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a16ebd1..3d231a5 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -148,7 +148,9 @@ VIR_ENUM_IMPL(virDomainFeatureState, VIR_DOMAIN_FEATURE_STATE_LAST,
"off")
VIR_ENUM_IMPL(virDomainHyperv, VIR_DOMAIN_HYPERV_LAST,
- "relaxed")
+ "relaxed",
+ "vapic",
+ "spinlocks")
VIR_ENUM_IMPL(virDomainLifecycle, VIR_DOMAIN_LIFECYCLE_LAST,
"destroy",
@@ -11061,6 +11063,7 @@ virDomainDefParseXML(xmlDocPtr xml,
switch ((enum virDomainHyperv) feature) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
if (!(tmp = virXPathString("string(./@state)", ctxt))) {
virReportError(VIR_ERR_XML_ERROR,
_("missing 'state' attribute for
"
@@ -11081,6 +11084,32 @@ virDomainDefParseXML(xmlDocPtr xml,
def->hyperv_features[feature] = value;
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ if (!(tmp = virXPathString("string(.)", ctxt))) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("missing HyperV spinlock retry
count"));
+ goto error;
+ }
+
+ if (virStrToLong_ui(tmp, NULL, 0,
+ &def->hyperv_spinlocks) < 0) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("Cannot parse HyperV spinlock retry "
+ "count"));
+ goto error;
+ }
+
+ if (def->hyperv_spinlocks < 0xFFF) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("HyperV spinlock retry count must be
"
+ "at least 0xFFF"));
+ goto error;
+ }
+ VIR_FREE(tmp);
+ def->hyperv_features[VIR_DOMAIN_HYPERV_SPINLOCKS] =
+ VIR_DOMAIN_FEATURE_STATE_ON;
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
@@ -16175,12 +16204,21 @@ virDomainDefFormatInternal(virDomainDefPtr def,
for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
switch ((enum virDomainHyperv) i) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
if (def->hyperv_features[i])
virBufferAsprintf(buf, " <%s
state='%s'/>\n",
virDomainHypervTypeToString(i),
virDomainFeatureStateTypeToString(def->hyperv_features[i]));
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ if (def->hyperv_features[i])
+ virBufferAsprintf(buf, "
<%s>0x%x</%s>\n",
+ virDomainHypervTypeToString(i),
+ def->hyperv_spinlocks,
+ virDomainHypervTypeToString(i));
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 3a71d6c..cce1189 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1583,6 +1583,8 @@ enum virDomainFeatureState {
enum virDomainHyperv {
VIR_DOMAIN_HYPERV_RELAXED = 0,
+ VIR_DOMAIN_HYPERV_VAPIC,
+ VIR_DOMAIN_HYPERV_SPINLOCKS,
VIR_DOMAIN_HYPERV_LAST
};
@@ -1920,6 +1922,7 @@ struct _virDomainDef {
int apic_eoi;
/* These options are of type virDomainFeatureState */
int hyperv_features[VIR_DOMAIN_HYPERV_LAST];
+ unsigned int hyperv_spinlocks;
virDomainClockDef clock;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 5513e28..b0119d8 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5782,11 +5782,18 @@ qemuBuildCpuArgStr(const virQEMUDriverPtr driver,
for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
switch ((enum virDomainHyperv) i) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
if (def->hyperv_features[i] == VIR_DOMAIN_FEATURE_STATE_ON)
virBufferAsprintf(&buf, ",hv_%s",
virDomainHypervTypeToString(i));
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ if (def->hyperv_features[i] == VIR_DOMAIN_FEATURE_STATE_ON)
+ virBufferAsprintf(&buf,",hv_spinlocks=0x%x",
+ def->hyperv_spinlocks);
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
@@ -9623,6 +9630,7 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
{
virCPUDefPtr cpu = NULL;
char **tokens;
+ char **hv_tokens = NULL;
char *model = NULL;
int ret = -1;
int i;
@@ -9702,9 +9710,19 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
goto cleanup;
}
} else if (STRPREFIX(tokens[i], "hv_")) {
- const char *feature = tokens[i] + 3; /* "hv_" */
+ const char *token = tokens[i] + 3; /* "hv_" */
+ const char *feature, *value;
int f;
+ if (*token == '\0')
+ goto syntax;
+
+ if (!(hv_tokens = virStringSplit(token, "=", 2)))
+ goto cleanup;
+
+ feature = hv_tokens[0];
+ value = hv_tokens[1];
+
if (*feature == '\0')
goto syntax;
@@ -9719,12 +9737,39 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
switch ((enum virDomainHyperv) f) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
+ if (value) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("HyperV feature '%s' should not "
+ "have a value"), feature);
+ goto cleanup;
+ }
dom->hyperv_features[f] = VIR_DOMAIN_FEATURE_STATE_ON;
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ dom->hyperv_features[f] = VIR_DOMAIN_FEATURE_STATE_ON;
+ if (!hv_tokens[1]) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("missing HyperV spinlock retry count"));
+ goto cleanup;
+ }
+
+ if (virStrToLong_ui(value, NULL, 0, &dom->hyperv_spinlocks) <
0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("cannot parse HyperV spinlock retry
count"));
+ goto cleanup;
+ }
+
+ if (dom->hyperv_spinlocks < 0xFFF)
+ dom->hyperv_spinlocks = 0xFFF;
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
+ virStringFreeList(hv_tokens);
+ hv_tokens = NULL;
}
}
@@ -9752,6 +9797,7 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
cleanup:
VIR_FREE(model);
virStringFreeList(tokens);
+ virStringFreeList(hv_tokens);
return ret;
syntax:
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
index fac4d5f..df6b207 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
@@ -1,4 +1,4 @@
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc \
--cpu qemu32,hv_relaxed -m 214 -smp 6 -nographic -monitor \
+-cpu qemu32,hv_relaxed,hv_vapic,hv_spinlocks=0x2fff -m 214 -smp 6 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -boot n -usb -net none -serial none \
-parallel none
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
index 0d5d0c7..9601645 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
@@ -12,6 +12,8 @@
<acpi/>
<hyperv>
<relaxed state='on'/>
+ <vapic state='on'/>
+ <spinlocks>0x2fff</spinlocks>
</hyperv>
</features>
<clock offset='utc'/>
--
1.8.1.5
4:01 a.m.
New subject: [libvirt] [PATCH v3 2/2] qemu: add hv_vapic and hv_spinlocks support
On 06/05/13 17:50, Ján Tomko wrote:
Add new CPU flags for HyperV:
hv_vapic for virtual APIC support
hv_spinlocks for spinlock support
XML:
<features>
<hyperv>
<vapic state='on'/>
<spinlocks>0xFFFF</spinlocks>
Is the Microsoft documentation for this feature use hex values?
</hyperv>
</features>
results in the following QEMU command line:
qemu -cpu <cpu_model>,hv_vapic,hv_spinlocks=0xffff
https://bugzilla.redhat.com/show_bug.cgi?id=784836
---
docs/formatdomain.html.in | 17 ++++++++-
docs/schemas/domaincommon.rng | 12 +++++++
src/conf/domain_conf.c | 40 ++++++++++++++++++++-
src/conf/domain_conf.h | 3 ++
src/qemu/qemu_command.c | 48 ++++++++++++++++++++++++-
tests/qemuxml2argvdata/qemuxml2argv-hyperv.args | 2 +-
tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml | 2 ++
7 files changed, 120 insertions(+), 4 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 755d084..983e070 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -1147,6 +1147,8 @@
<privnet/>
<hyperv>
<relaxed state='on'/>
+ <vapic state='on'/>
+ <spinlocks>0xFFFF</spinlocks>
</hyperv>
</features>
@@ -1197,14 +1199,27 @@
<th>Feature</th>
<th>Description</th>
<th>Value</th>
+ <th>Since</th>
</tr>
<tr>
<td>relaxed</td>
<td>Relax contstraints on timers</td>
<td> on, off</td>
+ <td><span class="since">1.0.0 (QEMU
only)</span></td>
+ </tr>
+ <tr>
+ <td>vapic</td>
+ <td>Enable virtual APIC</td>
+ <td>on, off</td>
+ <td><span class="since">1.0.6 (QEMU
only)</span></td>
+ </tr>
+ <tr>
+ <td>spinlocks</td>
+ <td>Enable spinlock support</td>
+ <td>hexadecimal number of retries, at least 0xFFF</td>
+ <td><span class="since">1.0.6 (QEMU
only)</span></td>
</tr>
</table>
- <span class="since">Since 1.0.0 (QEMU only)</span>
</dd>
</dl>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 3cace35..ff14f34 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -4017,6 +4017,18 @@
<ref name="hypervtristate"/>
</element>
</optional>
+ <optional>
+ <element name="vapic">
+ <ref name="hypervtristate"/>
+ </element>
+ </optional>
+ <optional>
+ <element name="spinlocks">
+ <data type="string">
+ <param name="pattern">0x[0-9a-fA-F]{0,8}</param>
+ </data>
+ </element>
+ </optional>
</interleave>
</element>
</define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a16ebd1..3d231a5 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -148,7 +148,9 @@ VIR_ENUM_IMPL(virDomainFeatureState, VIR_DOMAIN_FEATURE_STATE_LAST,
"off")
VIR_ENUM_IMPL(virDomainHyperv, VIR_DOMAIN_HYPERV_LAST,
- "relaxed")
+ "relaxed",
+ "vapic",
+ "spinlocks")
VIR_ENUM_IMPL(virDomainLifecycle, VIR_DOMAIN_LIFECYCLE_LAST,
"destroy",
@@ -11061,6 +11063,7 @@ virDomainDefParseXML(xmlDocPtr xml,
switch ((enum virDomainHyperv) feature) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
if (!(tmp = virXPathString("string(./@state)", ctxt))) {
virReportError(VIR_ERR_XML_ERROR,
_("missing 'state' attribute for
"
@@ -11081,6 +11084,32 @@ virDomainDefParseXML(xmlDocPtr xml,
def->hyperv_features[feature] = value;
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ if (!(tmp = virXPathString("string(.)", ctxt))) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("missing HyperV spinlock retry
count"));
+ goto error;
+ }
+
+ if (virStrToLong_ui(tmp, NULL, 0,
+ &def->hyperv_spinlocks) < 0) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("Cannot parse HyperV spinlock retry
"
+ "count"));
Missing formatting literal "%s" (breaks syntax-check)
+ goto error;
+ }
+
+ if (def->hyperv_spinlocks < 0xFFF) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("HyperV spinlock retry count must be
"
+ "at least 0xFFF"));
Missing formatting literal "%s" (breaks syntax-check)
+ goto error;
+ }
+ VIR_FREE(tmp);
+ def->hyperv_features[VIR_DOMAIN_HYPERV_SPINLOCKS] =
+ VIR_DOMAIN_FEATURE_STATE_ON;
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
@@ -16175,12 +16204,21 @@ virDomainDefFormatInternal(virDomainDefPtr def,
for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
switch ((enum virDomainHyperv) i) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
if (def->hyperv_features[i])
virBufferAsprintf(buf, " <%s
state='%s'/>\n",
virDomainHypervTypeToString(i),
virDomainFeatureStateTypeToString(def->hyperv_features[i]));
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ if (def->hyperv_features[i])
+ virBufferAsprintf(buf, "
<%s>0x%x</%s>\n",
+ virDomainHypervTypeToString(i),
The spinlocks case statement doesn't seem to be universal. You can avoid
a function call by directly using the XML field name instead of doing
virDomainHypervTypeToString().
+ def->hyperv_spinlocks,
+ virDomainHypervTypeToString(i));
Twice.
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 3a71d6c..cce1189 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1583,6 +1583,8 @@ enum virDomainFeatureState {
enum virDomainHyperv {
VIR_DOMAIN_HYPERV_RELAXED = 0,
+ VIR_DOMAIN_HYPERV_VAPIC,
+ VIR_DOMAIN_HYPERV_SPINLOCKS,
VIR_DOMAIN_HYPERV_LAST
};
@@ -1920,6 +1922,7 @@ struct _virDomainDef {
int apic_eoi;
/* These options are of type virDomainFeatureState */
int hyperv_features[VIR_DOMAIN_HYPERV_LAST];
+ unsigned int hyperv_spinlocks;
virDomainClockDef clock;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 5513e28..b0119d8 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5782,11 +5782,18 @@ qemuBuildCpuArgStr(const virQEMUDriverPtr driver,
for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
switch ((enum virDomainHyperv) i) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
if (def->hyperv_features[i] == VIR_DOMAIN_FEATURE_STATE_ON)
virBufferAsprintf(&buf, ",hv_%s",
virDomainHypervTypeToString(i));
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ if (def->hyperv_features[i] == VIR_DOMAIN_FEATURE_STATE_ON)
+ virBufferAsprintf(&buf,",hv_spinlocks=0x%x",
+ def->hyperv_spinlocks);
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
@@ -9623,6 +9630,7 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
{
virCPUDefPtr cpu = NULL;
char **tokens;
+ char **hv_tokens = NULL;
char *model = NULL;
int ret = -1;
int i;
@@ -9702,9 +9710,19 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
goto cleanup;
}
} else if (STRPREFIX(tokens[i], "hv_")) {
- const char *feature = tokens[i] + 3; /* "hv_" */
+ const char *token = tokens[i] + 3; /* "hv_" */
+ const char *feature, *value;
int f;
+ if (*token == '\0')
+ goto syntax;
+
+ if (!(hv_tokens = virStringSplit(token, "=", 2)))
+ goto cleanup;
+
+ feature = hv_tokens[0];
+ value = hv_tokens[1];
+
if (*feature == '\0')
goto syntax;
@@ -9719,12 +9737,39 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
switch ((enum virDomainHyperv) f) {
case VIR_DOMAIN_HYPERV_RELAXED:
+ case VIR_DOMAIN_HYPERV_VAPIC:
+ if (value) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("HyperV feature '%s' should not
"
+ "have a value"), feature);
+ goto cleanup;
+ }
dom->hyperv_features[f] = VIR_DOMAIN_FEATURE_STATE_ON;
break;
+ case VIR_DOMAIN_HYPERV_SPINLOCKS:
+ dom->hyperv_features[f] = VIR_DOMAIN_FEATURE_STATE_ON;
+ if (!hv_tokens[1]) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
Missing formatting literal "%s" (breaks syntax-check)
+ _("missing HyperV spinlock
retry count"));
+ goto cleanup;
+ }
+
+ if (virStrToLong_ui(value, NULL, 0, &dom->hyperv_spinlocks) <
0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
Missing formatting literal "%s" (breaks syntax-check)
+ _("cannot parse HyperV
spinlock retry count"));
+ goto cleanup;
+ }
+
+ if (dom->hyperv_spinlocks < 0xFFF)
+ dom->hyperv_spinlocks = 0xFFF;
+ break;
+
case VIR_DOMAIN_HYPERV_LAST:
break;
}
+ virStringFreeList(hv_tokens);
+ hv_tokens = NULL;
}
}
@@ -9752,6 +9797,7 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
cleanup:
VIR_FREE(model);
virStringFreeList(tokens);
+ virStringFreeList(hv_tokens);
return ret;
syntax:
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
index fac4d5f..df6b207 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.args
@@ -1,4 +1,4 @@
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc \
--cpu qemu32,hv_relaxed -m 214 -smp 6 -nographic -monitor \
+-cpu qemu32,hv_relaxed,hv_vapic,hv_spinlocks=0x2fff -m 214 -smp 6 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -boot n -usb -net none -serial none \
-parallel none
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
index 0d5d0c7..9601645 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hyperv.xml
@@ -12,6 +12,8 @@
<acpi/>
<hyperv>
<relaxed state='on'/>
+ <vapic state='on'/>
+ <spinlocks>0x2fff</spinlocks>
</hyperv>
</features>
<clock offset='utc'/>
Peter
10:19 a.m.
New subject: [libvirt] [PATCH v3 2/2] qemu: add hv_vapic and hv_spinlocks support
On 06/06/2013 11:01 AM, Peter Krempa wrote:
On 06/05/13 17:50, Ján Tomko wrote:
> Add new CPU flags for HyperV:
> hv_vapic for virtual APIC support
> hv_spinlocks for spinlock support
>
> XML:
> <features>
> <hyperv>
> <vapic state='on'/>
> <spinlocks>0xFFFF</spinlocks>
Is the Microsoft documentation for this feature use hex values?
It uses 0xFFFFFFFF as the special value meaning "no retries" [1]
QEMU uses hex values too, but it parses the number with strtoul and base 0
(just as we do), meaning decimal and octal values are allowed too.
> </hyperv>
> </features>
>
> results in the following QEMU command line:
> qemu -cpu <cpu_model>,hv_vapic,hv_spinlocks=0xffff
>
> https://bugzilla.redhat.com/show_bug.cgi?id=784836
> ---
Jan
[1] http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&i...
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4191
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6 comments
2 participants
participants (2)
-
Ján Tomko -
Peter Krempa