[PATCH 1/2] KVM: introduce __vmx_flush_tlb to handle specific vpid

[Wanpeng Li]

Introduce __vmx_flush_tlb() to handle specific vpid.

Signed-off-by: Wanpeng Li <wanpeng...@hotmail.com>
---
 arch/x86/kvm/vmx.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 794c529..7188c5e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1343,13 +1343,13 @@ static void loaded_vmcs_clear(struct loaded_vmcs 
*loaded_vmcs)
                         __loaded_vmcs_clear, loaded_vmcs, 1);
 }
 
-static inline void vpid_sync_vcpu_single(struct vcpu_vmx *vmx)
+static inline void vpid_sync_vcpu_single(int vpid)
 {
-       if (vmx->vpid == 0)
+       if (vpid == 0)
                return;
 
        if (cpu_has_vmx_invvpid_single())
-               __invvpid(VMX_VPID_EXTENT_SINGLE_CONTEXT, vmx->vpid, 0);
+               __invvpid(VMX_VPID_EXTENT_SINGLE_CONTEXT, vpid, 0);
 }
 
 static inline void vpid_sync_vcpu_global(void)
@@ -1358,10 +1358,10 @@ static inline void vpid_sync_vcpu_global(void)
                __invvpid(VMX_VPID_EXTENT_ALL_CONTEXT, 0, 0);
 }
 
-static inline void vpid_sync_context(struct vcpu_vmx *vmx)
+static inline void vpid_sync_context(int vpid)
 {
        if (cpu_has_vmx_invvpid_single())
-               vpid_sync_vcpu_single(vmx);
+               vpid_sync_vcpu_single(vpid);
        else
                vpid_sync_vcpu_global();
 }
@@ -3450,9 +3450,9 @@ static void exit_lmode(struct kvm_vcpu *vcpu)
 
 #endif
 
-static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
+static inline void __vmx_flush_tlb(struct kvm_vcpu *vcpu, int vpid)
 {
-       vpid_sync_context(to_vmx(vcpu));
+       vpid_sync_context(vpid);
        if (enable_ept) {
                if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
                        return;
@@ -3460,6 +3460,11 @@ static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
        }
 }
 
+static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
+{
+       __vmx_flush_tlb(vcpu, to_vmx(vcpu)->vpid);
+}
+
 static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu)
 {
        ulong cr0_guest_owned_bits = vcpu->arch.cr0_guest_owned_bits;
@@ -4795,7 +4800,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool 
init_event)
        vmx_fpu_activate(vcpu);
        update_exception_bitmap(vcpu);
 
-       vpid_sync_context(vmx);
+       vpid_sync_context(vmx->vpid);
 }
 
 /*
-- 
1.9.1

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