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KVM: nVMX: Fix up VM_ENTRY_IA32E_MODE control feature reporting

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Do not report that we can enter the guest in 64-bit mode if the host is
32-bit only. This is not supported by KVM.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2013-08-06 10:39:56 +02:00 • committed by Paolo Bonzini
commit 5743534960
1 changed files with 5 additions and 1 deletions
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6
arch/x86/kvm/vmx.c
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@ -2212,9 +2212,13 @@ static __init void nested_vmx_setup_ctls_msrs(void)
/* If bit 55 of VMX_BASIC is off, bits 0-8 and 12 must be 1. */
nested_vmx_entry_ctls_low = VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR;
nested_vmx_entry_ctls_high &=
VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_IA32E_MODE;
#ifdef CONFIG_X86_64
VM_ENTRY_IA32E_MODE |
#endif
VM_ENTRY_LOAD_IA32_PAT;
nested_vmx_entry_ctls_high |= (VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR |
VM_ENTRY_LOAD_IA32_EFER);
/* cpu-based controls */
rdmsr(MSR_IA32_VMX_PROCBASED_CTLS,
nested_vmx_procbased_ctls_low, nested_vmx_procbased_ctls_high);