From: Uros Bizjak <ubizjak@gmail.com>
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH] KVM: x86: Use VMCALL and VMMCALL mnemonics in kvm_para.h
Date: Tue, 23 Jun 2020 20:34:39 +0200 [thread overview]
Message-ID: <20200623183439.5526-1-ubizjak@gmail.com> (raw)
Current minimum required version of binutils is 2.23,
which supports VMCALL and VMMCALL instruction mnemonics.
Replace the byte-wise specification of VMCALL and
VMMCALL with these proper mnemonics.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/include/asm/kvm_para.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 49d3a9edb06f..01317493807e 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -18,7 +18,7 @@ static inline bool kvm_check_and_clear_guest_paused(void)
#endif /* CONFIG_KVM_GUEST */
#define KVM_HYPERCALL \
- ALTERNATIVE(".byte 0x0f,0x01,0xc1", ".byte 0x0f,0x01,0xd9", X86_FEATURE_VMMCALL)
+ ALTERNATIVE("vmcall", "vmmcall", X86_FEATURE_VMMCALL)
/* For KVM hypercalls, a three-byte sequence of either the vmcall or the vmmcall
* instruction. The hypervisor may replace it with something else but only the
--
2.26.2
next reply other threads:[~2020-06-23 18:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 18:34 Uros Bizjak [this message]
2020-06-25 12:32 ` [PATCH] KVM: x86: Use VMCALL and VMMCALL mnemonics in kvm_para.h Paolo Bonzini
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