lkml.org 
[lkml]   [2014]   [Aug]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] KVM: x86: raise invalid TSS exceptions during a task switch
Date
Conditions that would usually trigger a general protection fault should
instead raise #TS.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/emulate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 03954f7900f5..ef297919a691 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1468,7 +1468,7 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
return ret;

err_code = selector & 0xfffc;
- err_vec = GP_VECTOR;
+ err_vec = in_task_switch ? TS_VECTOR : GP_VECTOR;

/* can't load system descriptor into segment selector */
if (seg <= VCPU_SREG_GS && !seg_desc.s)
--
1.8.3.1


\
 
 \ /
  Last update: 2014-08-20 13:41    [W:0.030 / U:1.232 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site