Sean Christopherson 2cbbe28c73 KVM: x86/mmu: Fix struct guest_walker arrays for 5-level paging ... [ Upstream commit f6ab0107a4 ] Define PT_MAX_FULL_LEVELS as PT64_ROOT_MAX_LEVEL, i.e. 5, to fix shadow paging for 5-level guest page tables. PT_MAX_FULL_LEVELS is used to size the arrays that track guest pages table information, i.e. using a "max levels" of 4 causes KVM to access garbage beyond the end of an array when querying state for level 5 entries. E.g. FNAME(gpte_changed) will read garbage and most likely return %true for a level 5 entry, soft-hanging the guest because FNAME(fetch) will restart the guest instead of creating SPTEs because it thinks the guest PTE has changed. Note, KVM doesn't yet support 5-level nested EPT, so PT_MAX_FULL_LEVELS gets to stay "4" for the PTTYPE_EPT case. Fixes: 855feb6736 ("KVM: MMU: Add 5 level EPT & Shadow page table support.") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-19 19:53:09 +01:00
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vmx	KVM: nVMX: Use correct root level for nested EPT shadow page tables	2020-02-19 19:53:04 +01:00
Kconfig	…
Makefile	…
cpuid.c	kvm/svm: PKU not currently supported	2020-02-11 04:35:40 -08:00
cpuid.h	…
debugfs.c	…
emulate.c	KVM: x86: Ensure guest's FPU state is loaded when accessing for emulation	2020-02-11 04:35:41 -08:00
hyperv.c	KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks	2020-02-11 04:35:38 -08:00
hyperv.h	…
i8254.c	…
i8254.h	…
i8259.c	KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks	2020-02-11 04:35:37 -08:00
ioapic.c	KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks	2020-02-11 04:35:38 -08:00
ioapic.h	…
irq.c	…
irq.h	…
irq_comm.c	…
kvm_cache_regs.h	…
lapic.c	KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks	2020-02-11 04:35:38 -08:00
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: Use vcpu-specific gva->hva translation when querying host page size	2020-02-11 04:35:54 -08:00
mmu.h	kvm: x86: mmu: Recovery of shattered NX large pages	2019-11-04 20:26:00 +01:00
mmu_audit.c	…
mmutrace.h	KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit KVM	2020-02-11 04:35:53 -08:00
mtrr.c	KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks	2020-02-11 04:35:39 -08:00
page_track.c	…
paging_tmpl.h	KVM: x86/mmu: Fix struct guest_walker arrays for 5-level paging	2020-02-19 19:53:09 +01:00
pmu.c	…
pmu.h	KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks	2020-02-11 04:35:38 -08:00
pmu_amd.c	…
svm.c	kvm/svm: PKU not currently supported	2020-02-11 04:35:40 -08:00
trace.h	…
tss.h	…
x86.c	KVM: x86: Mask off reserved bit from #DB exception payload	2020-02-19 19:53:08 +01:00
x86.h	KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit KVM	2020-02-11 04:35:53 -08:00