From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: namit@cs.technion.ac.il
Subject: [PATCH] KVM: x86: raise invalid TSS exceptions during a task switch
Date: Wed, 20 Aug 2014 13:24:19 +0200 [thread overview]
Message-ID: <1408533859-18242-1-git-send-email-pbonzini@redhat.com> (raw)
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
reply other threads:[~2014-08-20 11:24 UTC|newest]
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