From 77d727926607ba42f0c4ba82baaec1076e8cbebf Mon Sep 17 00:00:00 2001
From: Wanpeng Li <wanpengli@tencent.com>
Date: Tue, 8 Mar 2022 00:18:49 -0800
Subject: [PATCH] x86/kvm: Don't waste kvmclock memory if there is nopv
parameter
When the "nopv" command line parameter is used, it should not waste
memory for kvmclock.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1646727529-11774-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kernel/kvmclock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index c5caa7311bd82..16333ba1904ba 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -239,7 +239,7 @@ static void __init kvmclock_init_mem(void)
static int __init kvm_setup_vsyscall_timeinfo(void)
{
- if (!kvm_para_available() || !kvmclock)
+ if (!kvm_para_available() || !kvmclock || nopv)
return 0;
kvmclock_init_mem();