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authorWanpeng Li <wanpengli@tencent.com>2021-05-05 02:27:28 +0200
committerThomas Gleixner <tglx@linutronix.de>2021-05-05 22:54:10 +0200
commit866a6dadbb027b2955a7ae00bab9705d382def12 (patch)
treea98a15bcdcf73e1c2072e931f21832ee37aa2a26
parentKVM/VMX: Invoke NMI non-IST entry instead of IST entry (diff)
downloadlinux-866a6dadbb027b2955a7ae00bab9705d382def12.tar.xz
linux-866a6dadbb027b2955a7ae00bab9705d382def12.zip
context_tracking: Move guest exit context tracking to separate helpers
Provide separate context tracking helpers for guest exit, the standalone helpers will be called separately by KVM x86 in later patches to fix tick-based accounting. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Co-developed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210505002735.1684165-2-seanjc@google.com
-rw-r--r--include/linux/context_tracking.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index bceb06498521..b8c7313495a7 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -131,10 +131,15 @@ static __always_inline void guest_enter_irqoff(void)
}
}
-static __always_inline void guest_exit_irqoff(void)
+static __always_inline void context_tracking_guest_exit(void)
{
if (context_tracking_enabled())
__context_tracking_exit(CONTEXT_GUEST);
+}
+
+static __always_inline void guest_exit_irqoff(void)
+{
+ context_tracking_guest_exit();
instrumentation_begin();
if (vtime_accounting_enabled_this_cpu())
@@ -159,6 +164,8 @@ static __always_inline void guest_enter_irqoff(void)
instrumentation_end();
}
+static __always_inline void context_tracking_guest_exit(void) { }
+
static __always_inline void guest_exit_irqoff(void)
{
instrumentation_begin();