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Subject[FYI PATCH 17/20] KVM: VMX: introduce __vmx_flush_tlb to handle specific vpid
Date
From: Wanpeng Li <wanpeng.li@hotmail.com>

Introduce __vmx_flush_tlb() to handle specific vpid.

Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.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 656074153f49..e1cb4aa026a2 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1337,13 +1337,13 @@ 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)
@@ -1352,10 +1352,10 @@ 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();
}
@@ -3441,9 +3441,9 @@ 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;
@@ -3451,6 +3451,11 @@ 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;
@@ -4784,7 +4789,7 @@ 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);
}

/*
--
1.8.3.1



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