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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-12 14:55:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-12 14:55:04 -0800 |
| commit | 212f30008a284a9312d95dad6cc237ff81173d73 (patch) | |
| tree | d3fb92f2f32e0c8dfb6f351d15090dc518ecc6f2 /arch/x86/kernel/kvm.c | |
| parent | 6f3be0f04354185e81a006b8e4dfc307edad75e7 (diff) | |
| parent | 34bc3560c657d3d4fb17367ed9bfda803166dce0 (diff) | |
Merge branch 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 idle updates from Ingo Molnar:
"There were two bigger changes in this development cycle:
- remove idle notifiers:
32 files changed, 74 insertions(+), 803 deletions(-)
These notifiers were of questionable value and the main usecase,
the i7300 driver, was essentially unmaintained and can be removed,
plus modern power management concepts don't need the callback - so
use this golden opportunity and get rid of this opaque and fragile
callback from a latency sensitive code path.
(Len Brown, Thomas Gleixner)
- improve the AMD Erratum 400 workaround that used high overhead MSR
polling in the idle loop (Borisla Petkov, Thomas Gleixner)"
* 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Remove empty idle.h header
x86/amd: Simplify AMD E400 aware idle routine
x86/amd: Check for the C1E bug post ACPI subsystem init
x86/bugs: Separate AMD E400 erratum and C1E bug
x86/cpufeature: Provide helper to set bugs bits
x86/idle: Remove enter_idle(), exit_idle()
x86: Remove x86_test_and_clear_bit_percpu()
x86/idle: Remove is_idle flag
x86/idle: Remove idle_notifier
i7300_idle: Remove this driver
Diffstat (limited to 'arch/x86/kernel/kvm.c')
| -rw-r--r-- | arch/x86/kernel/kvm.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index fb5afc6356b2..36bc66416021 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -42,7 +42,6 @@ #include <asm/traps.h> #include <asm/desc.h> #include <asm/tlbflush.h> -#include <asm/idle.h> #include <asm/apic.h> #include <asm/apicdef.h> #include <asm/hypervisor.h> @@ -267,13 +266,11 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code) case KVM_PV_REASON_PAGE_NOT_PRESENT: /* page is swapped out by the host. */ prev_state = exception_enter(); - exit_idle(); kvm_async_pf_task_wait((u32)read_cr2()); exception_exit(prev_state); break; case KVM_PV_REASON_PAGE_READY: rcu_irq_enter(); - exit_idle(); kvm_async_pf_task_wake((u32)read_cr2()); rcu_irq_exit(); break; |