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selftests: kvm: provide common function to enable eVMCS

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There are two tests already enabling eVMCS and a third is coming.
Add a function that enables the capability and tests the result.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2019-08-14 12:02:41 -04:00
parent 92cd0f0be3
commit 65efa61dc0
4 changed files with 28 additions and 21 deletions
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2
tools/testing/selftests/kvm/include/evmcs.h
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@@ -220,6 +220,8 @@ struct hv_enlightened_vmcs {
struct hv_enlightened_vmcs *current_evmcs;
struct hv_vp_assist_page *current_vp_assist;
int vcpu_enable_evmcs(struct kvm_vm *vm, int vcpu_id);
static inline int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist)
{
u64 val = (vp_assist_pa & HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK) |