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KVM: VMX: Mark vmcs header as shadow in case alloc_vmcs_cpu() allocate shadow vmcs 

No functionality change.

Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Liran Alon 2018-06-23 02:35:12 +03:00 committed by Paolo Bonzini
parent 32c7acf044
commit 491a603845
1 changed files with 8 additions and 8 deletions
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16
arch/x86/kvm/vmx.c
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@ -4418,7 +4418,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
return 0;
}
static struct vmcs *alloc_vmcs_cpu(int cpu)
static struct vmcs *alloc_vmcs_cpu(bool shadow, int cpu)
{
int node = cpu_to_node(cpu);
struct page *pages;
@ -4436,6 +4436,8 @@ static struct vmcs *alloc_vmcs_cpu(int cpu)
else
vmcs->hdr.revision_id = vmcs_config.revision_id;
if (shadow)
vmcs->hdr.shadow_vmcs = 1;
return vmcs;
}
@ -4459,14 +4461,14 @@ static void free_loaded_vmcs(struct loaded_vmcs *loaded_vmcs)
WARN_ON(loaded_vmcs->shadow_vmcs != NULL);
}
static struct vmcs *alloc_vmcs(void)
static struct vmcs *alloc_vmcs(bool shadow)
{
return alloc_vmcs_cpu(raw_smp_processor_id());
return alloc_vmcs_cpu(shadow, raw_smp_processor_id());
}
static int alloc_loaded_vmcs(struct loaded_vmcs *loaded_vmcs)
{
loaded_vmcs->vmcs = alloc_vmcs();
loaded_vmcs->vmcs = alloc_vmcs(false);
if (!loaded_vmcs->vmcs)
return -ENOMEM;
@ -4597,7 +4599,7 @@ static __init int alloc_kvm_area(void)
for_each_possible_cpu(cpu) {
struct vmcs *vmcs;
vmcs = alloc_vmcs_cpu(cpu);
vmcs = alloc_vmcs_cpu(false, cpu);
if (!vmcs) {
free_kvm_area();
return -ENOMEM;
@ -7922,11 +7924,9 @@ static int enter_vmx_operation(struct kvm_vcpu *vcpu)
goto out_cached_shadow_vmcs12;
if (enable_shadow_vmcs) {
shadow_vmcs = alloc_vmcs();
shadow_vmcs = alloc_vmcs(true);
if (!shadow_vmcs)
goto out_shadow_vmcs;
/* mark vmcs as shadow */
shadow_vmcs->hdr.shadow_vmcs = 1;
/* init shadow vmcs */
vmcs_clear(shadow_vmcs);
vmx->vmcs01.shadow_vmcs = shadow_vmcs;