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* commit 80917728e43e248155c019f743655806b582b099
@ 2007-07-31  7:17 ` Avi Kivity
  0 siblings, 0 replies; 4+ messages in thread
From: Avi Kivity @ 2007-07-31  7:17 UTC (permalink / raw)
  To: Linus Torvalds; +Cc: linux-kernel, kvm-devel

    KVM: x86 emulator: disable writeback for debug register instructions
    
    These are handled internally by the instruction.
    
    Signed-off-by: Avi Kivity <avi@qumranet.com>

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 1a90ba0..2136da5 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -1222,11 +1222,13 @@ twobyte_insn:
 		}
 		break;
 	case 0x21: /* mov from dr to reg */
+		no_wb = 1;
 		if (modrm_mod != 3)
 			goto cannot_emulate;
 		rc = emulator_get_dr(ctxt, modrm_reg, &_regs[modrm_rm]);
 		break;
 	case 0x23: /* mov from reg to dr */
+		no_wb = 1;
 		if (modrm_mod != 3)
 			goto cannot_emulate;
 		rc = emulator_set_dr(ctxt, modrm_reg, _regs[modrm_rm]);

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* commit 80917728e43e248155c019f743655806b582b099
@ 2007-07-31  7:17 ` Avi Kivity
  0 siblings, 0 replies; 4+ messages in thread
From: Avi Kivity @ 2007-07-31  7:17 UTC (permalink / raw)
  To: Linus Torvalds
  Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA

    KVM: x86 emulator: disable writeback for debug register instructions
    
    These are handled internally by the instruction.
    
    Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 1a90ba0..2136da5 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -1222,11 +1222,13 @@ twobyte_insn:
 		}
 		break;
 	case 0x21: /* mov from dr to reg */
+		no_wb = 1;
 		if (modrm_mod != 3)
 			goto cannot_emulate;
 		rc = emulator_get_dr(ctxt, modrm_reg, &_regs[modrm_rm]);
 		break;
 	case 0x23: /* mov from reg to dr */
+		no_wb = 1;
 		if (modrm_mod != 3)
 			goto cannot_emulate;
 		rc = emulator_set_dr(ctxt, modrm_reg, _regs[modrm_rm]);

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^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: commit 80917728e43e248155c019f743655806b582b099
@ 2007-07-31  7:49   ` Avi Kivity
  0 siblings, 0 replies; 4+ messages in thread
From: Avi Kivity @ 2007-07-31  7:49 UTC (permalink / raw)
  To: Avi Kivity; +Cc: Linus Torvalds, linux-kernel, kvm-devel

Avi Kivity wrote:
>     KVM: x86 emulator: disable writeback for debug register instructions
>     
>     These are handled internally by the instruction.
>     
>     Signed-off-by: Avi Kivity <avi@qumranet.com>
>
>   

Sorry, junk that.  Fingers (or brain) slipped.  Better one coming up.

-- 
error compiling committee.c: too many arguments to function


^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: commit 80917728e43e248155c019f743655806b582b099
@ 2007-07-31  7:49   ` Avi Kivity
  0 siblings, 0 replies; 4+ messages in thread
From: Avi Kivity @ 2007-07-31  7:49 UTC (permalink / raw)
  To: Avi Kivity
  Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f, Linus Torvalds,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA

Avi Kivity wrote:
>     KVM: x86 emulator: disable writeback for debug register instructions
>     
>     These are handled internally by the instruction.
>     
>     Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
>
>   

Sorry, junk that.  Fingers (or brain) slipped.  Better one coming up.

-- 
error compiling committee.c: too many arguments to function


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Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2007-07-31  7:49 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2007-07-31  7:17 commit 80917728e43e248155c019f743655806b582b099 Avi Kivity
2007-07-31  7:17 ` Avi Kivity
2007-07-31  7:49 ` Avi Kivity
2007-07-31  7:49   ` Avi Kivity

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