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context_tracking: Move guest exit context tracking to separate helpers

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commit 866a6dadbb027b2955a7ae00bab9705d382def12 upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wanpeng Li 2021-05-04 17:27:28 -07:00 committed by Greg Kroah-Hartman
parent 27acfd11ba
commit 5ae5e3f058
1 changed files with 8 additions and 1 deletions
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9
include/linux/context_tracking.h
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@ -129,10 +129,15 @@ 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())
@ -157,6 +162,8 @@ 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();