From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 18 Aug 2014 11:17:00 +0000 (+0200)
Subject: KVM: x86: raise invalid TSS exceptions during a task switch
X-Git-Tag: v4.14-rc1~6622^2~56
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=15fc075269e42230605343554c5c8001eb819228;p=platform%2Fkernel%2Flinux-rpi.git

KVM: x86: raise invalid TSS exceptions during a task switch

Conditions that would usually trigger a general protection fault should
instead raise #TS.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 03954f7..ef29791 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)