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| author | Bibo Mao <maobibo@loongson.cn> | 2024-07-09 16:25:51 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2024-07-09 16:25:51 +0800 |
| commit | b4ba157044ea433a66126603ad7140e12dbc794b (patch) | |
| tree | 57e1e54b36213e391cea34a7aebc7a9883164b76 /arch/powerpc/perf/callchain.h | |
| parent | d7ad41a31d91abd01a4d9b040074d808899636ea (diff) | |
| download | linux-b4ba157044ea433a66126603ad7140e12dbc794b.tar.gz linux-b4ba157044ea433a66126603ad7140e12dbc794b.tar.bz2 linux-b4ba157044ea433a66126603ad7140e12dbc794b.zip | |
LoongArch: KVM: Add PV steal time support in host side
Add ParaVirt steal time feature in host side, VM can search supported
features provided by KVM hypervisor, a feature KVM_FEATURE_STEAL_TIME
is added here. Like x86, steal time structure is saved in guest memory,
one hypercall function KVM_HCALL_FUNC_NOTIFY is added to notify KVM to
enable this feature.
One CPU attr ioctl command KVM_LOONGARCH_VCPU_PVTIME_CTRL is added to
save and restore the base address of steal time structure when a VM is
migrated.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/powerpc/perf/callchain.h')
0 files changed, 0 insertions, 0 deletions