1
0
Fork 0
alistair23-linux/arch/x86/kvm
Junaid Shahid 1aa9b9572b kvm: x86: mmu: Recovery of shattered NX large pages
The page table pages corresponding to broken down large pages are zapped in
FIFO order, so that the large page can potentially be recovered, if it is
not longer being used for execution.  This removes the performance penalty
for walking deeper EPT page tables.

By default, one large page will last about one hour once the guest
reaches a steady state.

Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2019-11-04 20:26:00 +01:00
..
vmx KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active 2019-10-31 12:13:44 +01:00
Kconfig kvm: x86: add host poll control msrs 2019-06-18 11:43:46 +02:00
Makefile KVM: x86: fix TRACE_INCLUDE_PATH and remove -I. header search paths 2019-01-25 19:12:37 +01:00
cpuid.c kvm: x86: Expose RDPID in KVM_GET_SUPPORTED_CPUID 2019-10-22 13:31:12 +02:00
cpuid.h x86/cpufeatures: Combine word 11 and 12 into a new scattered features word 2019-06-20 12:38:44 +02:00
debugfs.c KVM: no need to check return value of debugfs_create functions 2019-08-05 12:55:49 +02:00
emulate.c KVM: x86: set ctxt->have_exception in x86_decode_insn() 2019-09-11 18:01:34 +02:00
hyperv.c KVM: x86: hyper-v: set NoNonArchitecturalCoreSharing CPUID bit when SMT is impossible 2019-09-24 13:37:30 +02:00
hyperv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
i8254.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
i8254.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i8259.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
ioapic.c kvm: x86: ioapic and apic debug macros cleanup 2019-07-15 20:39:01 +02:00
ioapic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320 2019-06-05 17:37:05 +02:00
irq.h KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
irq_comm.c KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
kvm_cache_regs.h KVM: x86: use direct accessors for RIP and RSP 2019-04-30 22:07:26 +02:00
lapic.c KVM: SVM: Fix potential wrong physical id in avic_handle_ldr_update 2019-10-22 18:47:50 +02:00
lapic.h KVM: SVM: Fix potential wrong physical id in avic_handle_ldr_update 2019-10-22 18:47:50 +02:00
mmu.c kvm: x86: mmu: Recovery of shattered NX large pages 2019-11-04 20:26:00 +01:00
mmu.h kvm: x86: mmu: Recovery of shattered NX large pages 2019-11-04 20:26:00 +01:00
mmu_audit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
mmutrace.h KVM: x86/mmu: Explicitly track only a single invalid mmu generation 2019-09-24 14:36:00 +02:00
mtrr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
page_track.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
paging_tmpl.h kvm: mmu: ITLB_MULTIHIT mitigation 2019-11-04 12:22:02 +01:00
pmu.c KVM: x86: Add fixed counters to PMU filter 2019-07-20 09:00:48 +02:00
pmu.h KVM: x86: PMU Event Filter 2019-07-11 15:08:28 +02:00
pmu_amd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
svm.c KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active 2019-10-31 12:13:44 +01:00
trace.h KVM: nVMX: trace nested VM-Enter failures detected by H/W 2019-09-11 17:34:17 +02:00
tss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86.c kvm: x86: mmu: Recovery of shattered NX large pages 2019-11-04 20:26:00 +01:00
x86.h KVM: x86: Move triple fault request into RM int injection 2019-09-24 14:31:20 +02:00