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authorHerbert Xu <herbert@gondor.apana.org.au>2007-01-23 14:10:00 +1100
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-22 19:27:02 -0800
commite00154891137e3b0659556b877d45a16cabd700c (patch)
tree431b72f6cbdcca102eb619f4a00f8b9d0849a843
parent46fd906131bfae831b56a1e64dd94956626fc07c (diff)
downloadlinux-linaro-stable-e00154891137e3b0659556b877d45a16cabd700c.tar.gz
[PATCH] vmx: Fix register constraint in launch code
Both "=r" and "=g" breaks my build on i386: $ make CC [M] drivers/kvm/vmx.o {standard input}: Assembler messages: {standard input}:3318: Error: bad register name `%sil' make[1]: *** [drivers/kvm/vmx.o] Error 1 make: *** [_module_drivers/kvm] Error 2 The reason is that setbe requires an 8-bit register but "=r" does not constrain the target register to be one that has an 8-bit version on i386. According to http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10153 the correct constraint is "=q". Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/kvm/vmx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index ce219e3f557f..0aa2659f6ae5 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1824,7 +1824,7 @@ again:
#endif
"setbe %0 \n\t"
"popf \n\t"
- : "=g" (fail)
+ : "=q" (fail)
: "r"(vcpu->launched), "d"((unsigned long)HOST_RSP),
"c"(vcpu),
[rax]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RAX])),