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kvm: make hyperv hypercall and guest os id MSRs migratable.

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Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vadim Rozenfeld 2014-01-24 00:40:47 +11:00 • committed by Paolo Bonzini
parent 7bc3d711b4
commit 1c90ef2619
3 changed files with 39 additions and 2 deletions
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23
target-i386/machine.c
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@ -554,6 +554,26 @@ static const VMStateDescription vmstate_mpx = {
}
};
static bool hyperv_hypercall_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->msr_hv_hypercall != 0 || env->msr_hv_guest_os_id != 0;
}
static const VMStateDescription vmstate_msr_hypercall_hypercall = {
.name = "cpu/msr_hyperv_hypercall",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField []) {
VMSTATE_UINT64(env.msr_hv_hypercall, X86CPU),
VMSTATE_UINT64(env.msr_hv_guest_os_id, X86CPU),
VMSTATE_END_OF_LIST()
}
};
const VMStateDescription vmstate_x86_cpu = {
.name = "cpu",
.version_id = 12,
@ -688,6 +708,9 @@ const VMStateDescription vmstate_x86_cpu = {
} , {
.vmsd = &vmstate_mpx,
.needed = mpx_needed,
}, {
.vmsd = &vmstate_msr_hypercall_hypercall,
.needed = hyperv_hypercall_enable_needed,
} , {
/* empty */
}