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| author | Sheng Yang <sheng.yang@intel.com> | 2008-06-18 14:43:38 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-07-20 12:42:36 +0300 |
| commit | 65267ea1b3e768dc54b63cd7fad520d89c27d350 (patch) | |
| tree | 403dd76e60a43dd93a3467e4e6c50f40196d1590 /arch | |
| parent | db475c39eca0f2e44953d96e768d7ce808ab85bd (diff) | |
| download | blackbird-op-linux-65267ea1b3e768dc54b63cd7fad520d89c27d350.tar.gz blackbird-op-linux-65267ea1b3e768dc54b63cd7fad520d89c27d350.zip | |
KVM: VMX: Fix a wrong usage of vmcs_config
The function ept_update_paging_mode_cr0() write to
CPU_BASED_VM_EXEC_CONTROL based on vmcs_config.cpu_based_exec_ctrl. That's
wrong because the variable may not consistent with the content in the
CPU_BASE_VM_EXEC_CONTROL MSR.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 1bb994657208..6a3a4038f3b9 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1441,7 +1441,7 @@ static void ept_update_paging_mode_cr0(unsigned long *hw_cr0, if (!(cr0 & X86_CR0_PG)) { /* From paging/starting to nonpaging */ vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, - vmcs_config.cpu_based_exec_ctrl | + vmcs_read32(CPU_BASED_VM_EXEC_CONTROL) | (CPU_BASED_CR3_LOAD_EXITING | CPU_BASED_CR3_STORE_EXITING)); vcpu->arch.cr0 = cr0; @@ -1451,7 +1451,7 @@ static void ept_update_paging_mode_cr0(unsigned long *hw_cr0, } else if (!is_paging(vcpu)) { /* From nonpaging to paging */ vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, - vmcs_config.cpu_based_exec_ctrl & + vmcs_read32(CPU_BASED_VM_EXEC_CONTROL) & ~(CPU_BASED_CR3_LOAD_EXITING | CPU_BASED_CR3_STORE_EXITING)); vcpu->arch.cr0 = cr0; |
