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Add support for ppc64 qemu

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This enables libvirt to select the correct qemu binary (qemu-system-ppc64)
for a guest vm based on arch 'ppc64'.
Also, libvirt is enabled to correctly parse the list of supported PowerPC
CPUs, generated by running 'qemu-system-ppc64 -cpu ?'

Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Acked-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This commit is contained in:
Prerna Saxena 2011-10-03 06:01:33 -07:00 committed by Stefan Berger
parent 82ff25e108
commit 9bb8064dff
1 changed files with 74 additions and 0 deletions
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74
src/qemu/qemu_capabilities.c
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@ -186,6 +186,7 @@ static const struct qemu_arch_info const arch_info_hvm[] = {
{ "mipsel", 32, NULL, "qemu-system-mipsel", NULL, NULL, 0 },
{ "sparc", 32, NULL, "qemu-system-sparc", NULL, NULL, 0 },
{ "ppc", 32, NULL, "qemu-system-ppc", NULL, NULL, 0 },
{ "ppc64", 64, NULL, "qemu-system-ppc64", NULL, NULL, 0 },
{ "itanium", 64, NULL, "qemu-system-ia64", NULL, NULL, 0 },
{ "s390x", 64, NULL, "qemu-system-s390x", NULL, NULL, 0 },
};
@ -478,6 +479,77 @@ error:
return -1;
}
/* ppc64 parser.
* Format : PowerPC <machine> <description>
*/
static int
qemuCapsParsePPCModels(const char *output,
unsigned int *retcount,
const char ***retcpus)
{
const char *p = output;
const char *next;
unsigned int count = 0;
const char **cpus = NULL;
int i;
if (!retcpus) {
VIR_DEBUG("No retcpus specified");
return -1;
}
do {
const char *t;
if ((next = strchr(p, '\n')))
next++;
if (!STRPREFIX(p, "PowerPC "))
continue;
/* Skip the preceding sub-string "PowerPC " */
p += 8;
/*Malformed string, does not obey the format 'PowerPC <model> <desc>'*/
if (!(t = strchr(p, ' ')) || (next && t >= next))
continue;
if (*p == '\0')
break;
if (*p == '\n')
continue;
if (retcpus) {
unsigned int len;
if (VIR_REALLOC_N(cpus, count + 1) < 0)
virReportOOMError();
goto error;
len = t - p - 1;
if (!(cpus[count] = strndup(p, len)))
virReportOOMError();
goto error;
}
count++;
} while ((p = next));
if (retcount)
*retcount = count;
if (retcpus)
*retcpus = cpus;
return 0;
error:
if (cpus) {
for (i = 0; i < count; i++)
VIR_FREE(cpus[i]);
}
VIR_FREE(cpus);
return -1;
}
int
qemuCapsProbeCPUModels(const char *qemu,
@ -498,6 +570,8 @@ qemuCapsProbeCPUModels(const char *qemu,
if (STREQ(arch, "i686") || STREQ(arch, "x86_64"))
parse = qemuCapsParseX86Models;
else if (STREQ(arch, "ppc64"))
parse = qemuCapsParsePPCModels;
else {
VIR_DEBUG("don't know how to parse %s CPU models", arch);
return 0;