openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Izik Eidus 2008-04-28 18:23:52 +03:00 committed by Avi Kivity
parent 1439442c7b
commit 3fe913e7c5
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/kvm/x86.c
View File

@ -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) { 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, save_guest_segment_descriptor(vcpu, tr_seg.selector,
&cseg_desc); &cseg_desc);
} }
@ -3510,7 +3510,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
} }
if (reason != TASK_SWITCH_IRET) { if (reason != TASK_SWITCH_IRET) {
nseg_desc.type |= (1 << 8); nseg_desc.type |= (1 << 1);
save_guest_segment_descriptor(vcpu, tss_selector, save_guest_segment_descriptor(vcpu, tss_selector,
&nseg_desc); &nseg_desc);
} }