[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>
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@ -1824,7 +1824,7 @@ again:
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#endif
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#endif
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"setbe %0 \n\t"
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"setbe %0 \n\t"
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"popf \n\t"
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"popf \n\t"
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: "=g" (fail)
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: "=q" (fail)
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: "r"(vcpu->launched), "d"((unsigned long)HOST_RSP),
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: "r"(vcpu->launched), "d"((unsigned long)HOST_RSP),
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"c"(vcpu),
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"c"(vcpu),
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[rax]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RAX])),
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[rax]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RAX])),
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