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qemu: Introduce qemuBuildMemCommandLine

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Add new function to manage adding the '-m' memory options to the command
line removing that task from the mainline qemuBuildCommandLine

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2016-02-17 16:19:26 -05:00
parent d238b51f00
commit aa076fe8e4
1 changed files with 50 additions and 36 deletions
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86
src/qemu/qemu_command.c
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@ -5225,7 +5225,7 @@ qemuBuildSmpArgStr(const virDomainDef *def,
static int
qemuBuildMemPathStr(virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
virCommandPtr cmd)
{
@ -5288,6 +5288,53 @@ qemuBuildMemPathStr(virQEMUDriverConfigPtr cfg,
return 0;
}
static int
qemuBuildMemCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
if (qemuDomainDefValidateMemoryHotplug(def, qemuCaps, NULL) < 0)
return -1;
virCommandAddArg(cmd, "-m");
if (virDomainDefHasMemoryHotplug(def)) {
/* Use the 'k' suffix to let qemu handle the units */
virCommandAddArgFormat(cmd, "size=%lluk,slots=%u,maxmem=%lluk",
virDomainDefGetMemoryInitial(def),
def->mem.memory_slots,
def->mem.max_memory);
} else {
virCommandAddArgFormat(cmd, "%llu",
virDomainDefGetMemoryInitial(def) / 1024);
}
/*
* Add '-mem-path' (and '-mem-prealloc') parameter here only if
* there is no numa node specified.
*/
if (!virDomainNumaGetNodeCount(def->numa) &&
qemuBuildMemPathStr(cfg, def, qemuCaps, cmd) < 0)
return -1;
if (def->mem.locked && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_MLOCK)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("memory locking not supported by QEMU binary"));
return -1;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MLOCK)) {
virCommandAddArg(cmd, "-realtime");
virCommandAddArgFormat(cmd, "mlock=%s",
def->mem.locked ? "on" : "off");
}
return 0;
}
static int
qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
@ -6827,45 +6874,12 @@ qemuBuildCommandLine(virConnectPtr conn,
if (qemuBuildDomainLoaderCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (!migrateURI && !snapshot &&
qemuDomainAlignMemorySizes(def) < 0)
if (!migrateURI && !snapshot && qemuDomainAlignMemorySizes(def) < 0)
goto error;
if (qemuDomainDefValidateMemoryHotplug(def, qemuCaps, NULL) < 0)
if (qemuBuildMemCommandLine(cmd, cfg, def, qemuCaps) < 0)
goto error;
virCommandAddArg(cmd, "-m");
if (virDomainDefHasMemoryHotplug(def)) {
/* Use the 'k' suffix to let qemu handle the units */
virCommandAddArgFormat(cmd, "size=%lluk,slots=%u,maxmem=%lluk",
virDomainDefGetMemoryInitial(def),
def->mem.memory_slots,
def->mem.max_memory);
} else {
virCommandAddArgFormat(cmd, "%llu", virDomainDefGetMemoryInitial(def) / 1024);
}
/*
* Add '-mem-path' (and '-mem-prealloc') parameter here only if
* there is no numa node specified.
*/
if (!virDomainNumaGetNodeCount(def->numa) &&
qemuBuildMemPathStr(cfg, def, qemuCaps, cmd) < 0)
goto error;
if (def->mem.locked && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_MLOCK)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("memory locking not supported by QEMU binary"));
goto error;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MLOCK)) {
virCommandAddArg(cmd, "-realtime");
virCommandAddArgFormat(cmd, "mlock=%s",
def->mem.locked ? "on" : "off");
}
virCommandAddArg(cmd, "-smp");
if (!(smp = qemuBuildSmpArgStr(def, qemuCaps)))
goto error;