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qemu: Cache GIC capabilities

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Implement support for saving GIC capabilities in the cache and
read them back.
This commit is contained in:
Andrea Bolognani 2016-03-10 17:59:51 +01:00
parent e087aa7545
commit c9458b6583
1 changed files with 82 additions and 0 deletions
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82
src/qemu/qemu_capabilities.c
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@ -2926,6 +2926,72 @@ virQEMUCapsLoadCache(virQEMUCapsPtr qemuCaps, const char *filename,
}
VIR_FREE(nodes);
if ((n = virXPathNodeSet("./gic", ctxt, &nodes)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to parse qemu capabilities gic"));
goto cleanup;
}
if (n > 0) {
unsigned int uintValue;
bool boolValue;
qemuCaps->ngicCapabilities = n;
if (VIR_ALLOC_N(qemuCaps->gicCapabilities, n) < 0)
goto cleanup;
for (i = 0; i < n; i++) {
virGICCapabilityPtr cap = &qemuCaps->gicCapabilities[i];
if (!(str = virXMLPropString(nodes[i], "version"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing GIC version "
"in QEMU capabilities cache"));
goto cleanup;
}
if (virStrToLong_ui(str, NULL, 10, &uintValue) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed GIC version "
"in QEMU capabilities cache"));
goto cleanup;
}
cap->version = uintValue;
VIR_FREE(str);
if (!(str = virXMLPropString(nodes[i], "kernel"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing in-kernel GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (!(boolValue = STREQ(str, "yes")) && STRNEQ(str, "no")) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed in-kernel GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (boolValue)
cap->implementation |= VIR_GIC_IMPLEMENTATION_KERNEL;
VIR_FREE(str);
if (!(str = virXMLPropString(nodes[i], "emulated"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing emulated GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (!(boolValue = STREQ(str, "yes")) && STRNEQ(str, "no")) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed emulated GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (boolValue)
cap->implementation |= VIR_GIC_IMPLEMENTATION_EMULATED;
VIR_FREE(str);
}
}
VIR_FREE(nodes);
ret = 0;
cleanup:
VIR_FREE(str);
@ -2992,6 +3058,22 @@ virQEMUCapsSaveCache(virQEMUCapsPtr qemuCaps, const char *filename)
qemuCaps->machineMaxCpus[i]);
}
for (i = 0; i < qemuCaps->ngicCapabilities; i++) {
virGICCapabilityPtr cap;
bool kernel;
bool emulated;
cap = &qemuCaps->gicCapabilities[i];
kernel = (cap->implementation & VIR_GIC_IMPLEMENTATION_KERNEL);
emulated = (cap->implementation & VIR_GIC_IMPLEMENTATION_EMULATED);
virBufferAsprintf(&buf,
"<gic version='%d' kernel='%s' emulated='%s'/>\n",
cap->version,
kernel ? "yes" : "no",
emulated ? "yes" : "no");
}
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</qemuCaps>\n");