diff mbox series

[v4,1/8] context_tracking: Move guest exit context tracking to separate helpers

Message ID 20210505002735.1684165-2-seanjc@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: Fix tick-based accounting for x86 guests | expand

Commit Message

Sean Christopherson May 5, 2021, 12:27 a.m. UTC
From: Wanpeng Li <wanpengli@tencent.com>

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>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 include/linux/context_tracking.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

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();