NAK/cmnt: [Trusty SRU v2] Windows guest got 0x5c BSOD when rebooting

Stefan Bader stefan.bader at canonical.com
Tue Feb 14 10:25:36 UTC 2017


On 01.02.2017 14:01, Tim Gardner wrote:
> Patch 1 is actually a back port with relatively significant context
> differences. Always note that in the commit log along with the names
> of the files in conflict so that reviewers can focus their attention
> on specific code differences.
> 
> [PATCH 1/2] KVM: x86: reset RVI upon system reset
> [PATCH 2/2] KVM: x86: Emulator should set DR6 upon GD like real CPU
> 
> rtg
> 

Patch #1 probably could be near (or real) cherry-pick if picking

commit 963fee1656603ce2e91ebb988cd5a92f2af41369
Author: Wanpeng Li <wanpeng.li at linux.intel.com>
Date:   Thu Jul 17 19:03:00 2014 +0800

    KVM: nVMX: Fix virtual interrupt delivery injection

But reason for NAK is patch #2 v2 as it looks to be missing the definition of
DR6_RTM which is in the v1 of that.

iff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 70427d1..4d2cfd8 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -157,6 +157,7 @@ enum {

 #define DR6_BD		(1 << 13)
 #define DR6_BS		(1 << 14)
+#define DR6_RTM         (1 << 16)
 #define DR6_FIXED_1	0xffff0ff0
 #define DR6_VOLATILE	0x0000e00f

-Stefan


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