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| author | Avi Kivity <avi@redhat.com> | 2009-03-23 18:01:29 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-06-10 11:48:32 +0300 |
| commit | 919818abc2ca0721f1cd296fbc24601d9044f993 (patch) | |
| tree | 5209e4b316177c9125786a37354a41c517799a5b /arch/x86/kvm/vmx.c | |
| parent | 4462d21a615dfd0c0f672c10832a011d6f280d5a (diff) | |
| download | lwn-919818abc2ca0721f1cd296fbc24601d9044f993.tar.gz lwn-919818abc2ca0721f1cd296fbc24601d9044f993.zip | |
KVM: VMX: Zero the vpid module parameter if vpid is not supported
This allows reading back how the hardware is configured.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f4b6c4bcee29..9b97c8e3cfd1 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1202,6 +1202,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf) vmx_capability.ept, vmx_capability.vpid); } + if (!cpu_has_vmx_vpid()) + enable_vpid = 0; + min = 0; #ifdef CONFIG_X86_64 min |= VM_EXIT_HOST_ADDR_SPACE_SIZE; @@ -2082,7 +2085,7 @@ static void allocate_vpid(struct vcpu_vmx *vmx) int vpid; vmx->vpid = 0; - if (!enable_vpid || !cpu_has_vmx_vpid()) + if (!enable_vpid) return; spin_lock(&vmx_vpid_lock); vpid = find_first_zero_bit(vmx_vpid_bitmap, VMX_NR_VPIDS); |