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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2021-11-01 15:23:00 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-02 15:57:27 +0100 |
| commit | cabf9862e42ffeab9de9b1bfa12cddaf125c53e8 (patch) | |
| tree | 3482c587ed922db9a72dd5e8281e840dda5875e0 /target/i386/machine.c | |
| parent | 6aedeb650e6978ee8165f05b79fbfab6ed486eff (diff) | |
| download | focaccia-qemu-cabf9862e42ffeab9de9b1bfa12cddaf125c53e8.tar.gz focaccia-qemu-cabf9862e42ffeab9de9b1bfa12cddaf125c53e8.zip | |
KVM: SVM: add migration support for nested TSC scaling
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20211101132300.192584-4-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/machine.c')
| -rw-r--r-- | target/i386/machine.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/target/i386/machine.c b/target/i386/machine.c index 4367931623..83c2b91529 100644 --- a/target/i386/machine.c +++ b/target/i386/machine.c @@ -1280,6 +1280,27 @@ static const VMStateDescription vmstate_spec_ctrl = { } }; + +static bool amd_tsc_scale_msr_needed(void *opaque) +{ + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; + + return (env->features[FEAT_SVM] & CPUID_SVM_TSCSCALE); +} + +static const VMStateDescription amd_tsc_scale_msr_ctrl = { + .name = "cpu/amd_tsc_scale_msr", + .version_id = 1, + .minimum_version_id = 1, + .needed = amd_tsc_scale_msr_needed, + .fields = (VMStateField[]){ + VMSTATE_UINT64(env.amd_tsc_scale_msr, X86CPU), + VMSTATE_END_OF_LIST() + } +}; + + static bool intel_pt_enable_needed(void *opaque) { X86CPU *cpu = opaque; @@ -1558,6 +1579,7 @@ const VMStateDescription vmstate_x86_cpu = { &vmstate_pkru, &vmstate_pkrs, &vmstate_spec_ctrl, + &amd_tsc_scale_msr_ctrl, &vmstate_mcg_ext_ctl, &vmstate_msr_intel_pt, &vmstate_msr_virt_ssbd, |