提交 f3531054 编写于 作者: P Paolo Bonzini

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: NPaolo Bonzini <pbonzini@redhat.com>
上级 0bcf261c
......@@ -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);
......
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