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Commit 919818ab authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: VMX: Zero the vpid module parameter if vpid is not supported 



This allows reading back how the hardware is configured.

Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 4462d21a

arch/x86/kvm/vmx.c

+4 −1
Original line number Diff line number Diff line
@@ -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);