[libvirt] [PATCH] qemu: Implement a stub cpuArchDriver.compare() handler for arm and aarch64
Cole Robinson
crobinso at redhat.com
Sun May 11 22:20:30 UTC 2014
On 05/07/2014 12:38 PM, Oleg Strikov wrote:
> Libvirt calls cpuArchDriver.compare() while doing guest migration.
> We don't have any logic to distinguish between different arm and
> aarch64 models that's why this patch allows migration to any host.
>
> Signed-off-by: Oleg Strikov <oleg.strikov at canonical.com>
> ---
> src/cpu/cpu_aarch64.c | 9 ++++++++-
> src/cpu/cpu_arm.c | 9 ++++++++-
> 2 files changed, 16 insertions(+), 2 deletions(-)
>
> diff --git a/src/cpu/cpu_aarch64.c b/src/cpu/cpu_aarch64.c
> index 3c3e749..7255d9f 100644
> --- a/src/cpu/cpu_aarch64.c
> +++ b/src/cpu/cpu_aarch64.c
> @@ -108,11 +108,18 @@ AArch64Baseline(virCPUDefPtr *cpus,
> return cpu;
> }
>
> +static virCPUCompareResult
> +AArch64Compare(virCPUDefPtr host ATTRIBUTE_UNUSED,
> + virCPUDefPtr cpu ATTRIBUTE_UNUSED)
> +{
> + return VIR_CPU_COMPARE_IDENTICAL;
> +}
> +
> struct cpuArchDriver cpuDriverAARCH64 = {
> .name = "aarch64",
> .arch = archs,
> .narch = ARRAY_CARDINALITY(archs),
> - .compare = NULL,
> + .compare = AArch64Compare,
> .decode = AArch64Decode,
> .encode = NULL,
> .free = AArch64DataFree,
> diff --git a/src/cpu/cpu_arm.c b/src/cpu/cpu_arm.c
> index ec80b35..53bf4f4 100644
> --- a/src/cpu/cpu_arm.c
> +++ b/src/cpu/cpu_arm.c
> @@ -109,11 +109,18 @@ ArmBaseline(virCPUDefPtr *cpus,
> return cpu;
> }
>
> +static virCPUCompareResult
> +ArmCompare(virCPUDefPtr host ATTRIBUTE_UNUSED,
> + virCPUDefPtr cpu ATTRIBUTE_UNUSED)
> +{
> + return VIR_CPU_COMPARE_IDENTICAL;
> +}
> +
> struct cpuArchDriver cpuDriverArm = {
> .name = "arm",
> .arch = archs,
> .narch = ARRAY_CARDINALITY(archs),
> - .compare = NULL,
> + .compare = ArmCompare,
> .decode = ArmDecode,
> .encode = NULL,
> .free = ArmDataFree,
>
ACK and pushed
- Cole
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