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ppc: Enable starting of Qemu VMs on ppc host

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Due to differences in /proc/cpuinfo the parsing of the cpu data is
different between architectures. On PPC /proc/cpuinfo looks like this:

[original formatting with tabs]

processor    : 0
cpu          : PPC970MP, altivec supported
clock        : 2297.700000MHz
revision     : 1.1 (pvr 0044 0101)

processor    : 1
cpu          : PPC970MP, altivec supported
clock        : 2297.700000MHz
revision     : 1.1 (pvr 0044 0101)

[..]

timebase     : 14318000
platform     : pSeries
model        : IBM,8844-AC1
machine      : CHRP IBM,8844-AC1

The patch adapts the parsing of the data found in /proc/cpuinfo.

/sys/devices/system/cpu/cpuX/topology/physical_package_id also
always returns -1. Check for it on ppc and make it '0' if found negative.
This commit is contained in:
Stefan Berger 2011-04-14 14:50:22 -04:00
parent cf2145d546
commit d21f9d5a64
1 changed files with 32 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
src/nodeinfo.c
View File

@ -163,7 +163,14 @@ cleanup:
static int parse_socket(unsigned int cpu)
{
return get_cpu_value(cpu, "topology/physical_package_id", false);
int ret = get_cpu_value(cpu, "topology/physical_package_id", false);
#if defined(__powerpc__) || \
defined(__powerpc64__)
/* ppc has -1 */
if (ret < 0)
ret = 0;
#endif
return ret;
}
int linuxNodeInfoCPUPopulate(FILE *cpuinfo,
@ -206,6 +213,9 @@ int linuxNodeInfoCPUPopulate(FILE *cpuinfo,
return -1;
}
nodeinfo->cpus++;
#if defined(__x86_64__) || \
defined(__amd64__) || \
defined(__i386__)
} else if (STRPREFIX(buf, "cpu MHz")) {
char *p;
unsigned int ui;
@ -237,6 +247,27 @@ int linuxNodeInfoCPUPopulate(FILE *cpuinfo,
&& id > nodeinfo->cores)
nodeinfo->cores = id;
}
#elif defined(__powerpc__) || \
defined(__powerpc64__)
} else if (STRPREFIX(buf, "clock")) {
char *p;
unsigned int ui;
buf += 5;
while (*buf && c_isspace(*buf))
buf++;
if (*buf != ':' || !buf[1]) {
nodeReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("parsing cpuinfo cpu MHz"));
return -1;
}
if (virStrToLong_ui(buf+1, &p, 10, &ui) == 0
/* Accept trailing fractional part. */
&& (*p == '\0' || *p == '.' || c_isspace(*p)))
nodeinfo->mhz = ui;
}
#else
# warning Parser for /proc/cpuinfo needs to be adapted for your architecture
#endif
}
if (!nodeinfo->cpus) {