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| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-12-03 15:49:56 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-12-16 18:49:46 +0100 |
| commit | f35310546399eb77f03d37e760320e021f9a8568 (patch) | |
| tree | 2a19d7a473e2d0658512de4c7b31baf2b3c85b6e /arch | |
| parent | KVM: VMX: fix the writing POSTED_INTR_NV (diff) | |
| download | linux-f35310546399eb77f03d37e760320e021f9a8568.tar.xz linux-f35310546399eb77f03d37e760320e021f9a8568.zip | |
KVM: VMX: fix read/write sizes of VMCS fields
In theory this should have broken EPT on 32-bit kernels (due to
reading the high part of natural-width field GUEST_CR3). Not sure
if no one noticed or the processor behaves differently from the
documentation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index c39737ff0581..b1af1e48070b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4868,7 +4868,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) seg_setup(VCPU_SREG_CS); vmcs_write16(GUEST_CS_SELECTOR, 0xf000); - vmcs_write32(GUEST_CS_BASE, 0xffff0000); + vmcs_writel(GUEST_CS_BASE, 0xffff0000ul); seg_setup(VCPU_SREG_DS); seg_setup(VCPU_SREG_ES); @@ -4904,7 +4904,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) vmcs_write32(GUEST_ACTIVITY_STATE, GUEST_ACTIVITY_ACTIVE); vmcs_write32(GUEST_INTERRUPTIBILITY_INFO, 0); - vmcs_write32(GUEST_PENDING_DBG_EXCEPTIONS, 0); + vmcs_writel(GUEST_PENDING_DBG_EXCEPTIONS, 0); setup_msrs(vmx); @@ -7893,7 +7893,7 @@ static void dump_vmcs(void) u32 pin_based_exec_ctrl = vmcs_read32(PIN_BASED_VM_EXEC_CONTROL); u32 secondary_exec_control = 0; unsigned long cr4 = vmcs_readl(GUEST_CR4); - u64 efer = vmcs_readl(GUEST_IA32_EFER); + u64 efer = vmcs_read64(GUEST_IA32_EFER); int i, n; if (cpu_has_secondary_exec_ctrls()) @@ -10159,7 +10159,7 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, * Additionally, restore L2's PDPTR to vmcs12. */ if (enable_ept) { - vmcs12->guest_cr3 = vmcs_read64(GUEST_CR3); + vmcs12->guest_cr3 = vmcs_readl(GUEST_CR3); vmcs12->guest_pdptr0 = vmcs_read64(GUEST_PDPTR0); vmcs12->guest_pdptr1 = vmcs_read64(GUEST_PDPTR1); vmcs12->guest_pdptr2 = vmcs_read64(GUEST_PDPTR2); |