From: Nadav Amit <namit@cs.technion.ac.il>
Date: Thu, 18 Sep 2014 19:39:40 +0000 (+0300)
Subject: KVM: x86: Use new is_noncanonical_address in _linearize
X-Git-Tag: v3.19-rc1~36^2~114
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4be4de7ef9fd3a4d77320d4713970299ffecd286;p=platform%2Fkernel%2Flinux-stable.git

KVM: x86: Use new is_noncanonical_address in _linearize

Replace the current canonical address check with the new function which is
identical.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 07e9913..77041d4 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -658,7 +658,7 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
 	*max_size = 0;
 	switch (ctxt->mode) {
 	case X86EMUL_MODE_PROT64:
-		if (((signed long)la << 16) >> 16 != la)
+		if (is_noncanonical_address(la))
 			return emulate_gp(ctxt, 0);
 
 		*max_size = min_t(u64, ~0u, (1ull << 48) - la);