lkml.org 
[lkml]   [2022]   [Feb]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2] kvm:vmx: Fix typos comment in __loaded_vmcs_clear()
Date
From: Peng Hao <flyingpeng@tencent.com>

Fix a comment documenting the memory barrier related to clearing a
loaded_vmcs; loaded_vmcs tracks the host CPU the VMCS is loaded on via
the field 'cpu', it doesn't have a 'vcpu' field.

Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peng Hao <flyingpeng@tencent.com>
---
arch/x86/kvm/vmx/vmx.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 6101c2980a9c..75ed7d6f35cc 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -644,10 +644,10 @@ static void __loaded_vmcs_clear(void *arg)

/*
* Ensure all writes to loaded_vmcs, including deleting it from its
- * current percpu list, complete before setting loaded_vmcs->vcpu to
- * -1, otherwise a different cpu can see vcpu == -1 first and add
- * loaded_vmcs to its percpu list before it's deleted from this cpu's
- * list. Pairs with the smp_rmb() in vmx_vcpu_load_vmcs().
+ * current percpu list, complete before setting loaded_vmcs->cpu to
+ * -1, otherwise a different cpu can see loaded_vmcs->cpu == -1 first
+ * and add loaded_vmcs to its percpu list before it's deleted from this
+ * cpu's list. Pairs with the smp_rmb() in vmx_vcpu_load_vmcs().
*/
smp_wmb();

--
2.27.0
\
 
 \ /
  Last update: 2022-02-22 11:42    [W:0.066 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site