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| author | Liran Alon <liran.alon@oracle.com> | 2018-06-23 01:35:12 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-08-06 17:58:47 +0200 |
| commit | 491a6038458fc07ec307447dd5e6722e34d67c04 (patch) | |
| tree | 19cef5f0f6aa16b922a4ff7f4fa31d0aa79f44c4 /arch | |
| parent | KVM: nVMX: Expose VMCS shadowing to L1 guest (diff) | |
| download | linux-491a6038458fc07ec307447dd5e6722e34d67c04.tar.xz linux-491a6038458fc07ec307447dd5e6722e34d67c04.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 7cf64cbc3afd..098926a07cf7 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -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; |