lkml.org 
[lkml]   [2020]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] KVM: x86: Use VMCALL and VMMCALL mnemonics in kvm_para.h
Date
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
\
 
 \ /
  Last update: 2020-06-23 20:35    [W:0.032 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site