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Commit 07f42f5f authored by Gleb Natapov's avatar Gleb Natapov
Browse files

KVM: VMX: cleanup rmode_segment_valid() 



Set segment fields explicitly instead of using  binary operations.

No behaviour changes.

Reviewed-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
parent 116c14c0

arch/x86/kvm/vmx.c

+4 −1
Original line number Diff line number Diff line
@@ -3380,13 +3380,16 @@ static bool rmode_segment_valid(struct kvm_vcpu *vcpu, int seg) 
	u32 ar;



	vmx_get_segment(vcpu, &var, seg);

	var.dpl = 0x3;

	var.g = 0;

	var.db = 0;

	ar = vmx_segment_access_rights(&var);



	if (var.base != (var.selector << 4))

		return false;

	if (var.limit < 0xffff)

		return false;

	if (((ar | (3 << AR_DPL_SHIFT)) & ~(AR_G_MASK | AR_DB_MASK)) != 0xf3)

	if (ar != 0xf3)

		return false;



	return true;