Sean Christopherson 5d6a322156 KVM: WARN if is_unsync_root() is called on a root without a shadow page ... WARN and bail if is_unsync_root() is passed a root for which there is no shadow page, i.e. is passed the physical address of one of the special roots, which do not have an associated shadow page. The current usage squeaks by without bug reports because neither kvm_mmu_sync_roots() nor kvm_mmu_sync_prev_roots() calls the helper with pae_root or pml4_root, and 5-level AMD CPUs are not generally available, i.e. no one can coerce KVM into calling is_unsync_root() on pml5_root. Note, this doesn't fix the mess with 5-level nNPT, it just (hopefully) prevents KVM from crashing. Cc: Lai Jiangshan <jiangshanlai@gmail.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220225182248.3812651-8-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-03-01 08:58:26 -05:00
..
mmu_internal.h	KVM: x86/mmu: Propagate memslot const qualifier	2021-12-08 04:24:43 -05:00
mmu.c	KVM: WARN if is_unsync_root() is called on a root without a shadow page	2022-03-01 08:58:26 -05:00
mmutrace.h	KVM: x86/mmu: Add tracepoint for splitting huge pages	2022-02-10 13:50:43 -05:00
page_track.c	KVM: x86/mmu: Propagate memslot const qualifier	2021-12-08 04:24:43 -05:00
paging_tmpl.h	KVM: x86: use struct kvm_mmu_root_info for mmu->root	2022-02-25 08:20:16 -05:00
paging.h	KVM: x86/mmu: Do not apply HPA (memory encryption) mask to GPAs	2021-07-14 12:17:56 -04:00
spte.c	KVM: x86/mmu: Split huge pages mapped by the TDP MMU when dirty logging is enabled	2022-02-10 13:50:42 -05:00
spte.h	KVM: x86/mmu: Split huge pages mapped by the TDP MMU when dirty logging is enabled	2022-02-10 13:50:42 -05:00
tdp_iter.c	KVM: x86/mmu: Refactor TDP MMU iterators to take kvm_mmu_page root	2022-02-10 13:50:40 -05:00
tdp_iter.h	KVM: x86/mmu: Refactor TDP MMU iterators to take kvm_mmu_page root	2022-02-10 13:50:40 -05:00
tdp_mmu.c	KVM: x86: use struct kvm_mmu_root_info for mmu->root	2022-02-25 08:20:16 -05:00
tdp_mmu.h	KVM: x86: use struct kvm_mmu_root_info for mmu->root	2022-02-25 08:20:16 -05:00