AuxXxilium/linux_dsm_epyc7002
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b3ae209697
linux_dsm_epyc7002/arch/x86/kvm
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Takuya Yoshikawa b3ae209697 KVM: Introduce kvm_unmap_hva_range() for kvm_mmu_notifier_invalidate_range_start() 
When we tested KVM under memory pressure, with THP enabled on the host,
we noticed that MMU notifier took a long time to invalidate huge pages.

Since the invalidation was done with mmu_lock held, it not only wasted
the CPU but also made the host harder to respond.

This patch mitigates this by using kvm_handle_hva_range().

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Cc: Alexander Graf <agraf@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-07-18 16:55:04 -03:00
..
cpuid.c KVM: VMX: Implement PCID/INVPCID for guests with EPT 2012-07-12 13:07:34 +03:00
cpuid.h KVM: VMX: Implement PCID/INVPCID for guests with EPT 2012-07-12 13:07:34 +03:00
emulate.c KVM: x86 emulator: implement LTR 2012-07-09 14:19:05 +03:00
i8254.c KVM: x86: Run PIT work in own kthread 2012-04-27 19:40:29 -03:00
i8254.h KVM: x86: Run PIT work in own kthread 2012-04-27 19:40:29 -03:00
i8259.c KVM: x86: reset edge sense circuit of i8259 on init 2012-03-05 14:57:30 +02:00
irq.c KVM: fix typo in copyright notice 2010-10-24 10:53:14 +02:00
irq.h KVM: Intelligent device lookup on I/O bus 2011-09-25 19:17:59 +03:00
Kconfig KVM: Introduce direct MSI message injection for in-kernel irqchips 2012-04-24 15:59:47 +03:00
kvm_cache_regs.h KVM: MMU: Do not unconditionally read PDPTE from guest memory 2011-09-25 19:18:01 +03:00
kvm_timer.h KVM: emulate lapic tsc deadline timer for guest 2011-10-05 15:34:56 +02:00
lapic.c KVM: host side for eoi optimization 2012-06-25 12:40:55 +03:00
lapic.h KVM: host side for eoi optimization 2012-06-25 12:40:55 +03:00
Makefile KVM: Expose a version 2 architectural PMU to a guests 2011-12-27 11:24:29 +02:00
mmu_audit.c KVM: MMU: Improve iteration through sptes from rmap 2012-04-08 16:08:27 +03:00
mmu.c KVM: Introduce kvm_unmap_hva_range() for kvm_mmu_notifier_invalidate_range_start() 2012-07-18 16:55:04 -03:00
mmu.h KVM: MMU: mmio page fault support 2011-07-24 11:50:40 +03:00
mmutrace.h KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint 2012-07-11 16:51:22 +03:00
paging_tmpl.h KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint 2012-07-11 16:51:22 +03:00
pmu.c KVM: PMU emulation: GLOBAL_CTRL MSR should be enabled on reset 2012-04-10 15:34:10 +03:00
svm.c KVM: VMX: Implement PCID/INVPCID for guests with EPT 2012-07-12 13:07:34 +03:00
timer.c KVM: x86: Simplify kvm timer handler 2011-12-27 11:17:05 +02:00
trace.h KVM: host side for eoi optimization 2012-06-25 12:40:55 +03:00
tss.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
vmx.c KVM: VMX: Implement PCID/INVPCID for guests with EPT 2012-07-12 13:07:34 +03:00
x86.c KVM: VMX: Implement PCID/INVPCID for guests with EPT 2012-07-12 13:07:34 +03:00
x86.h KVM: x86: add paging gcc optimization 2012-04-08 14:03:13 +03:00