Paolo Bonzini b9b33da2aa KVM: try __get_user_pages_fast even if not in atomic context ... We are currently cutting hva_to_pfn_fast short if we do not want an immediate exit, which is represented by !async && !atomic. However, this is unnecessary, and __get_user_pages_fast is *much* faster because the regular get_user_pages takes pmd_lock/pte_lock. In fact, when many CPUs take a nested vmexit at the same time the contention on those locks is visible, and this patch removes about 25% (compared to 4.18) from vmexit.flat on a 16 vCPU nested guest. Suggested-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2018-08-06 17:59:07 +02:00
..
arm	KVM: arm/arm64: add WARN_ON if size is not PAGE_SIZE aligned in unmap_stage2_range	2018-06-21 11:48:03 +01:00
async_pf.c	kvm,async_pf: Use swq_has_sleeper()	2017-09-15 16:57:11 +02:00
async_pf.h
coalesced_mmio.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
coalesced_mmio.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
eventfd.c	Miscellaneous bugfixes, plus a small patchlet related to Spectre v2.	2018-07-18 11:08:44 -07:00
irqchip.c	KVM: use rcu access function for irq routing	2017-07-07 15:24:15 +02:00
Kconfig	KVM: arm64: Prevent KVM_COMPAT from being selected	2018-06-21 17:17:50 +01:00
kvm_main.c	KVM: try __get_user_pages_fast even if not in atomic context	2018-08-06 17:59:07 +02:00
vfio.c
vfio.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00