Marc Zyngier 9b4a300443 KVM: arm/arm64: timer: Add active state caching ... Programming the active state in the (re)distributor can be an expensive operation so it makes some sense to try and reduce the number of accesses as much as possible. So far, we program the active state on each VM entry, but there is some opportunity to do less. An obvious solution is to cache the active state in memory, and only program it in the HW when conditions change. But because the HW can also change things under our feet (the active state can transition from 1 to 0 when the guest does an EOI), some precautions have to be taken, which amount to only caching an "inactive" state, and always programing it otherwise. With this in place, we observe a reduction of around 700 cycles on a 2GHz GICv2 platform for a NULL hypercall. Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>		2016-02-29 18:34:22 +00:00
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hyp	ARM: KVM: Use common version of timer-sr.c	2016-02-29 18:34:19 +00:00
arm.c	KVM: arm/arm64: timer: Add active state caching	2016-02-29 18:34:22 +00:00
coproc_a7.c	arm/arm64: KVM: Use set/way op trapping to track the state of the caches	2015-01-29 23:24:56 +01:00
coproc_a15.c	arm/arm64: KVM: Use set/way op trapping to track the state of the caches	2015-01-29 23:24:56 +01:00
coproc.c	ARM: KVM: Switch the CP reg search to be a binary search	2016-02-29 18:34:22 +00:00
coproc.h	ARM: KVM: Rename struct coproc_reg::is_64 to is_64bit	2016-02-29 18:34:22 +00:00
emulate.c	ARM: KVM: Move GP registers into the CPU context structure	2016-02-29 18:34:12 +00:00
guest.c	ARM: KVM: Turn CP15 defines to an enum	2016-02-29 18:34:15 +00:00
handle_exit.c	ARM: KVM: Remove handling of ARM_EXCEPTION_DATA/PREF_ABORT	2016-02-29 18:34:15 +00:00
init.S	ARM: KVM: Switch to C-based stage2 init	2016-02-29 18:34:14 +00:00
interrupts.S	ARM: KVM: Remove the old world switch	2016-02-29 18:34:14 +00:00
Kconfig	arm/arm64: KVM : Enable vhost device selection under KVM config menu	2015-10-22 23:01:45 +02:00
Makefile	ARM: KVM: Add TLB invalidation code	2016-02-29 18:34:13 +00:00
mmio.c	arm/arm64: KVM: Feed initialized memory to MMIO accesses	2016-02-24 11:53:09 +00:00
mmu.c	arm64: KVM: Skip HYP setup when already running in HYP	2016-02-29 18:34:16 +00:00
perf.c
psci.c	arm64: KVM: Get rid of old vcpu_reg()	2015-12-04 16:30:03 +00:00
reset.c	ARM: KVM: Move GP registers into the CPU context structure	2016-02-29 18:34:12 +00:00
trace.h	arm/arm64: KVM: Improve kvm_exit tracepoint	2015-10-22 23:01:47 +02:00