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10ba2d17d2
linux/arch/arm64/kvm
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Gavin Shan 10ba2d17d2 KVM: arm64: Don't retrieve memory slot again in page fault handler 
We needn't retrieve the memory slot again in user_mem_abort() because
the corresponding memory slot has been passed from the caller. This
would save some CPU cycles. For example, the time used to write 1GB
memory, which is backed by 2MB hugetlb pages and write-protected, is
dropped by 6.8% from 928ms to 864ms.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210316041126.81860-4-gshan@redhat.com
2021-04-07 14:33:22 +01:00
..
hyp More fixes for ARM and x86. 2021-03-14 12:35:02 -07:00
vgic KVM: arm64: Workaround firmware wrongly advertising GICv2-on-v3 compatibility 2021-03-06 04:18:41 -05:00
arch_timer.c KVM: arm64: arch_timer: Remove VGIC initialization check 2020-12-23 16:43:12 +00:00
arm.c More fixes for ARM and x86. 2021-03-14 12:35:02 -07:00
debug.c KVM: arm64: Write arch.mdcr_el2 changes since last vcpu_load on VHE 2020-01-22 18:38:04 +00:00
fpsimd.c KVM: arm64: Make struct kvm_regs userspace-only 2020-07-07 09:28:38 +01:00
guest.c KVM: arm64: Drop kvm_coproc.h 2020-11-10 11:22:52 +00:00
handle_exit.c KVM: arm64: Drop kvm_coproc.h 2020-11-10 11:22:52 +00:00
hypercalls.c KVM: arm64: Implement the TRNG hypervisor call 2021-01-25 22:19:31 +00:00
inject_fault.c KVM: arm64: Move AArch32 exceptions over to AArch64 sysregs 2020-11-10 11:22:51 +00:00
irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
Kconfig KVM: arm64: Replace KVM_ARM_PMU with HW_PERF_EVENTS 2021-01-04 16:50:16 +00:00
Makefile KVM: arm64: Implement the TRNG hypervisor call 2021-01-25 22:19:31 +00:00
mmio.c KVM: arm64: Make kvm_skip_instr() and co private to HYP 2020-11-10 08:34:24 +00:00
mmu.c KVM: arm64: Don't retrieve memory slot again in page fault handler 2021-04-07 14:33:22 +01:00
perf.c KVM: arm64: Turn kvm_arm_support_pmu_v3() into a static key 2021-03-06 04:18:40 -05:00
pmu-emul.c KVM: arm64: Turn kvm_arm_support_pmu_v3() into a static key 2021-03-06 04:18:40 -05:00
pmu.c kvm: arm64: Set up hyp percpu data for nVHE 2020-09-30 08:37:14 +01:00
psci.c KVM: arm64: Convert ARCH_WORKAROUND_2 to arm64_get_spectre_v4_state() 2020-09-29 16:08:17 +01:00
pvtime.c KVM: arm64: Use kvm_write_guest_lock when init stolen time 2020-12-03 19:02:18 +00:00
reset.c More fixes for ARM and x86. 2021-03-14 12:35:02 -07:00
sys_regs.c Merge branch 'kvm-arm64/pmu-debug-fixes-5.11' into kvmarm-master/next 2021-02-12 14:08:41 +00:00
sys_regs.h Merge branch 'kvm-arm64/copro-no-more' into kvmarm-master/next 2020-11-27 11:33:16 +00:00
trace_arm.h KVM: arm64: Fix address truncation in traces 2020-09-04 10:53:48 +01:00
trace_handle_exit.h KVM: arm64: Fix address truncation in traces 2020-09-04 10:53:48 +01:00
trace.h KVM: arm64: Move virt/kvm/arm to arch/arm64 2020-05-16 15:03:59 +01:00
trng.c KVM: arm64: Implement the TRNG hypervisor call 2021-01-25 22:19:31 +00:00
va_layout.c KVM: arm64: Remove patching of fn pointers in hyp 2021-01-23 14:01:00 +00:00
vgic-sys-reg-v3.c KVM: arm64: Drop is_aarch32 trap attribute 2020-11-10 11:22:52 +00:00