>From 946e7589e5a875574c7567a91943d47c38218a6f Mon Sep 17 00:00:00 2001 From: Quan Xu <xuqu...@huawei.com> Date: Fri, 14 Apr 2017 02:11:30 +0800 Subject: [PATCH v1] vmx: set 'SN' bit for the runstate transition from blocked to runnable
set 'SN' bit of posted-interrupt descriptor when the runstate transition
is from blocked to runnable (SN bit of posted-interrupt descriptor is still
set to a blocked vCPU), otherwise PI notification event may be sent to a
non-running vCPU.
Signed-off-by: Quan Xu <xuqu...@huawei.com>
---
xen/arch/x86/hvm/vmx/vmx.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 9c5a388..956f104 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -142,9 +142,6 @@ static void vmx_pi_switch_from(struct vcpu *v)
{
struct pi_desc *pi_desc = &v->arch.hvm_vmx.pi_desc;
- if ( test_bit(_VPF_blocked, &v->pause_flags) )
- return;
-
pi_set_sn(pi_desc);
}
--
1.8.3.1
0001-vmx-set-SN-bit-for-the-runstate-transition-from-bloc.patch
Description: 0001-vmx-set-SN-bit-for-the-runstate-transition-from-bloc.patch
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