diff mbox

[12/22] KVM: VMX: Mark vmcs header as shadow in case alloc_vmcs_cpu() allocate shadow vmcs

Message ID 1529710522-28315-13-git-send-email-liran.alon@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Liran Alon June 22, 2018, 11:35 p.m. UTC 
No functionality change.

Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
---
 arch/x86/kvm/vmx.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
diff mbox

Patch

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index dc86f6a240b4..8230dcc76dae 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4407,7 +4407,7 @@  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;
@@ -4419,6 +4419,8 @@  static struct vmcs *alloc_vmcs_cpu(int cpu)
 	vmcs = page_address(pages);
 	memset(vmcs, 0, vmcs_config.size);
 	vmcs->hdr.revision_id = vmcs_config.revision_id;
+	if (shadow)
+		vmcs->hdr.shadow_vmcs = 1;
 	return vmcs;
 }
 
@@ -4442,14 +4444,14 @@  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;
 
@@ -4580,7 +4582,7 @@  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;
@@ -7881,11 +7883,9 @@  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;