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Commit 5fdbcb9d authored by Sheng Yang's avatar Sheng Yang Committed by Avi Kivity
Browse files

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: default avatarSheng Yang <sheng.yang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 5ec5726a

arch/x86/kvm/vmx.c

+10 −10
Original line number Diff line number Diff line
@@ -3118,15 +3118,6 @@ 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)
@@ -3305,8 +3296,17 @@ 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);