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linux/arch/x86/kvm
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Sean Christopherson e89505698c KVM: x86/mmu: Commit zap of remaining invalid pages when recovering lpages 
Call kvm_mmu_commit_zap_page() after exiting the "prepare zap" loop in
kvm_recover_nx_lpages() to finish zapping pages in the unlikely event
that the loop exited due to lpage_disallowed_mmu_pages being empty.
Because the recovery thread drops mmu_lock() when rescheduling, it's
possible that lpage_disallowed_mmu_pages could be emptied by a different
thread without to_zap reaching zero despite to_zap being derived from
the number of disallowed lpages.

Fixes: 1aa9b9572b105 ("kvm: x86: mmu: Recovery of shattered NX large pages")
Cc: Junaid Shahid <junaids@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200923183735.584-2-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-28 07:57:39 -04:00
..
mmu
KVM: x86/mmu: Commit zap of remaining invalid pages when recovering lpages
2020-09-28 07:57:39 -04:00
svm
KVM: SEV: shorten comments around sev_clflush_pages
2020-09-28 07:57:24 -04:00
vmx
KVM: VMX: Rename ops.h to vmx_ops.h
2020-09-28 07:57:38 -04:00
cpuid.c
KVM: x86: Unexport cpuid_query_maxphyaddr()
2020-09-28 07:57:26 -04:00
cpuid.h
KVM: x86: Move illegal GPA helper out of the MMU code
2020-09-28 07:57:27 -04:00
debugfs.c
KVM: let kvm_destroy_vm_debugfs clean up vCPU debugfs directories
2020-06-04 11:00:54 -04:00
emulate.c
KVM: x86: emulating RDPID failure shall return #UD rather than #GP
2020-09-28 07:57:22 -04:00
hyperv.c
KVM: x86: hyper-v: disallow configuring SynIC timers with no SynIC
2020-09-28 07:57:33 -04:00
hyperv.h
x86/kvm/hyper-v: Add support for synthetic debugger interface
2020-06-01 04:26:11 -04:00
i8254.c
kvm: i8254: remove redundant assignment to pointer s
2020-06-11 12:35:18 -04:00
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: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks
2020-01-27 19:59:37 +01:00
ioapic.c
kvm: ioapic: Restrict lazy EOI update to edge-triggered interrupts
2020-05-04 12:29:05 -04:00
ioapic.h
kvm/x86: Remove redundant function implementations
2020-05-27 13:11:10 -04:00
irq_comm.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
irq.c
KVM: nSVM: extract svm_set_gif
2020-06-01 04:26:01 -04:00
irq.h
kvm/x86: Remove redundant function implementations
2020-05-27 13:11:10 -04:00
Kconfig
x86/kvm: Use generic xfer to guest work function
2020-07-24 15:05:01 +02:00
kvm_cache_regs.h
KVM: x86: Mark CR4.TSD as being possibly owned by the guest
2020-07-03 12:16:28 -04:00
kvm_emulate.h
ARM:
2020-04-02 15:13:15 -07:00
lapic.c
KVM: nVMX: Morph notification vector IRQ on nested VM-Enter to pending PI
2020-09-28 07:57:22 -04:00
lapic.h
KVM: nVMX: Morph notification vector IRQ on nested VM-Enter to pending PI
2020-09-28 07:57:22 -04:00
Makefile
KVM: VMX: Extract posted interrupt support to separate files
2020-09-28 07:57:38 -04:00
mmu.h
KVM: x86: Move illegal GPA helper out of the MMU code
2020-09-28 07:57:27 -04:00
mtrr.c
KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks
2020-01-27 19:59:39 +01:00
pmu.c
KVM/x86: pmu: Fix #GP condition check for RDPMC emulation
2020-07-09 07:08:37 -04:00
pmu.h
kvm: x86: limit the maximum number of vPMU fixed counters to 3
2020-07-08 16:21:59 -04:00
trace.h
KVM: SVM: Add new intercept word in vmcb_control_area
2020-09-28 07:57:15 -04:00
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: Add kvm_x86_ops hook to short circuit emulation
2020-09-28 07:57:19 -04:00
x86.h
KVM: X86: Move handling of INVPCID types to x86
2020-09-28 07:57:17 -04:00