From: Izik Eidus <izike@qumranet.com>
Date: Mon, 28 Apr 2008 15:23:52 +0000 (+0300)
Subject: KVM: x86: task switch: fix wrong bit setting for the busy flag
X-Git-Tag: v2.6.26-rc2~80^2~8
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3fe913e7c550a869e250d04c34410f7a6e263f7c;p=linux-2.6

KVM: x86: task switch: fix wrong bit setting for the busy flag

The busy bit is bit 1 of the type field, not bit 8.

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1842a86f7c..017daa2561 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3484,7 +3484,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
 	}
 
 	if (reason == TASK_SWITCH_IRET || reason == TASK_SWITCH_JMP) {
-		cseg_desc.type &= ~(1 << 8); //clear the B flag
+		cseg_desc.type &= ~(1 << 1); //clear the B flag
 		save_guest_segment_descriptor(vcpu, tr_seg.selector,
 					      &cseg_desc);
 	}
@@ -3510,7 +3510,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
 	}
 
 	if (reason != TASK_SWITCH_IRET) {
-		nseg_desc.type |= (1 << 8);
+		nseg_desc.type |= (1 << 1);
 		save_guest_segment_descriptor(vcpu, tss_selector,
 					      &nseg_desc);
 	}