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authorSheng Yang <sheng@linux.intel.com>2009-08-19 09:52:18 +0800
committerAvi Kivity <avi@redhat.com>2009-09-10 10:46:53 +0300
commit95eb84a7588d7d7afd3096807efc052adc7479e1 (patch)
treee87021f78dc09d49bcf7f9ca55f5143898bc24a5 /arch/x86/kvm
parentd9048d3278ed4d395e63899257c3fa377693968b (diff)
KVM: VMX: Fix EPT with WP bit change during paging
QNX update WP bit when paging enabled, which is not covered yet. This one fix QNX boot with EPT. Cc: stable@kernel.org Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/vmx.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 2b7e7bd190fd..1ee811cef236 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1642,7 +1642,6 @@ static void ept_update_paging_mode_cr0(unsigned long *hw_cr0,
CPU_BASED_CR3_STORE_EXITING));
vcpu->arch.cr0 = cr0;
vmx_set_cr4(vcpu, vcpu->arch.cr4);
- *hw_cr0 &= ~X86_CR0_WP;
} else if (!is_paging(vcpu)) {
/* From nonpaging to paging */
vmcs_write32(CPU_BASED_VM_EXEC_CONTROL,
@@ -1651,9 +1650,10 @@ static void ept_update_paging_mode_cr0(unsigned long *hw_cr0,
CPU_BASED_CR3_STORE_EXITING));
vcpu->arch.cr0 = cr0;
vmx_set_cr4(vcpu, vcpu->arch.cr4);
- if (!(vcpu->arch.cr0 & X86_CR0_WP))
- *hw_cr0 &= ~X86_CR0_WP;
}
+
+ if (!(cr0 & X86_CR0_WP))
+ *hw_cr0 &= ~X86_CR0_WP;
}
static void ept_update_paging_mode_cr4(unsigned long *hw_cr4,