From bcbe1b5c4c6098f122accba4f00f6617baf807f7 Mon Sep 17 00:00:00 2001
From: Sheng Yang <[EMAIL PROTECTED]>
Date: Wed, 16 Jul 2008 09:25:40 +0800
Subject: [PATCH] KVM: VMX: Fix undefined beaviour of EPT after reload
kvm-intel.ko
As well as move set base/mask ptes to vmx_init().
Signed-off-by: Sheng Yang <[EMAIL PROTECTED]>
---
arch/x86/kvm/vmx.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d47c3f8..baddb6e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3108,15 +3108,6 @@ static struct kvm_vcpu *vmx_create_vcpu(struct
kvm *kvm, unsigned int id)
return ERR_PTR(-ENOMEM);
allocate_vpid(vmx);
- if (id == 0 && vm_need_ept()) {
- kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
- VMX_EPT_WRITABLE_MASK |
- VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
- kvm_mmu_set_mask_ptes(0ull, VMX_EPT_FAKE_ACCESSED_MASK,
- VMX_EPT_FAKE_DIRTY_MASK, 0ull,
- VMX_EPT_EXECUTABLE_MASK);
- kvm_enable_tdp();
- }
err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
if (err)
@@ -3294,8 +3285,17 @@ static int __init vmx_init(void)
vmx_disable_intercept_for_msr(vmx_msr_bitmap,
MSR_IA32_SYSENTER_ESP);
vmx_disable_intercept_for_msr(vmx_msr_bitmap,
MSR_IA32_SYSENTER_EIP);
- if (vm_need_ept())
+ if (vm_need_ept()) {
bypass_guest_pf = 0;
+ kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
+ VMX_EPT_WRITABLE_MASK |
+ VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
+ kvm_mmu_set_mask_ptes(0ull, VMX_EPT_FAKE_ACCESSED_MASK,
+ VMX_EPT_FAKE_DIRTY_MASK, 0ull,
+ VMX_EPT_EXECUTABLE_MASK);
+ kvm_enable_tdp();
+ } else
+ kvm_disable_tdp();
if (bypass_guest_pf)
kvm_mmu_set_nonpresent_ptes(~0xffeull, 0ull);
--
1.5.6
From bcbe1b5c4c6098f122accba4f00f6617baf807f7 Mon Sep 17 00:00:00 2001
From: Sheng Yang <[EMAIL PROTECTED]>
Date: Wed, 16 Jul 2008 09:25:40 +0800
Subject: [PATCH] KVM: VMX: Fix undefined beaviour of EPT after reload kvm-intel.ko
As well as move set base/mask ptes to vmx_init().
Signed-off-by: Sheng Yang <[EMAIL PROTECTED]>
---
arch/x86/kvm/vmx.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d47c3f8..baddb6e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3108,15 +3108,6 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
return ERR_PTR(-ENOMEM);
allocate_vpid(vmx);
- if (id == 0 && vm_need_ept()) {
- kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
- VMX_EPT_WRITABLE_MASK |
- VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
- kvm_mmu_set_mask_ptes(0ull, VMX_EPT_FAKE_ACCESSED_MASK,
- VMX_EPT_FAKE_DIRTY_MASK, 0ull,
- VMX_EPT_EXECUTABLE_MASK);
- kvm_enable_tdp();
- }
err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
if (err)
@@ -3294,8 +3285,17 @@ static int __init vmx_init(void)
vmx_disable_intercept_for_msr(vmx_msr_bitmap, MSR_IA32_SYSENTER_ESP);
vmx_disable_intercept_for_msr(vmx_msr_bitmap, MSR_IA32_SYSENTER_EIP);
- if (vm_need_ept())
+ if (vm_need_ept()) {
bypass_guest_pf = 0;
+ kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
+ VMX_EPT_WRITABLE_MASK |
+ VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
+ kvm_mmu_set_mask_ptes(0ull, VMX_EPT_FAKE_ACCESSED_MASK,
+ VMX_EPT_FAKE_DIRTY_MASK, 0ull,
+ VMX_EPT_EXECUTABLE_MASK);
+ kvm_enable_tdp();
+ } else
+ kvm_disable_tdp();
if (bypass_guest_pf)
kvm_mmu_set_nonpresent_ptes(~0xffeull, 0ull);
--
1.5.6
