[libvirt] [PATCH 1/1][RESEND]Remove contiguous CPU indexes assumption
Daniel P. Berrange
berrange at redhat.com
Thu Mar 14 11:14:45 UTC 2013
On Thu, Mar 14, 2013 at 02:54:22PM +0800, Li Zhang wrote:
> From: Li Zhang <zhlcindy at linux.vnet.ibm.com>
>
> When getting CPUs' information, it assumes that CPU indexes
> are not contiguous. But for ppc64 platform, CPU indexes are not
> contiguous because SMT is needed to be disabled, so CPU information
> is not right on ppc64 and vpuinfo, vcpupin can't work corretly.
>
> This patch is to remove the assumption to be compatible with ppc64.
>
> Test:
> 4 vcpus are assigned to one VM and execute vcpuinfo command.
>
> Without patch: There is only one vcpu informaion can be listed.
> With patch: All vcpus' information can be listed correctly.
>
> Signed-off-by: Li Zhang <zhlcindy at linux.vnet.ibm.com>
> ---
> src/qemu/qemu_monitor_json.c | 7 -------
> 1 file changed, 7 deletions(-)
>
> diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
> index 9991a0a..e130f8c 100644
> --- a/src/qemu/qemu_monitor_json.c
> +++ b/src/qemu/qemu_monitor_json.c
> @@ -1230,13 +1230,6 @@ qemuMonitorJSONExtractCPUInfo(virJSONValuePtr reply,
> goto cleanup;
> }
>
> - if (cpu != i) {
> - virReportError(VIR_ERR_INTERNAL_ERROR,
> - _("unexpected cpu index %d expecting %d"),
> - i, cpu);
> - goto cleanup;
> - }
> -
Since you removed this, the 'cpu' variable is completely unused, so
you should also remove earlier logic which populates it
> threads[i] = thread;
> }
>
There is similar code to this in qemu_monitor_text.c which needs to
be removed too
if (vcpu != (lastVcpu + 1))
goto error;
Daniel
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