Sean Christopherson acbda82a81 KVM: x86/mmu: Require mmu_lock be held for write to zap TDP MMU range ... Now that all callers of zap_gfn_range() hold mmu_lock for write, drop support for zapping with mmu_lock held for read. That all callers hold mmu_lock for write isn't a random coincidence; now that the paths that need to zap _everything_ have their own path, the only callers left are those that need to zap for functional correctness. And when zapping is required for functional correctness, mmu_lock must be held for write, otherwise the caller has no guarantees about the state of the TDP MMU page tables after it has run, e.g. the SPTE(s) it zapped can be immediately replaced by a vCPU faulting in a page. Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Ben Gardon <bgardon@google.com> Message-Id: <20220226001546.360188-17-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-03-08 09:31:55 -05:00
..
mmu_internal.h	KVM: x86/mmu: Zap only the target TDP MMU shadow page in NX recovery	2022-03-08 09:31:54 -05:00
mmu.c	KVM: x86/mmu: Document that zapping invalidated roots doesn't need to flush	2022-03-08 09:31:36 -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: use __vcalloc for very large allocations	2022-03-08 09:30:57 -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: Add helpers to read/write TDP MMU SPTEs and document RCU	2022-03-08 09:31:52 -05:00
tdp_iter.h	KVM: x86/mmu: Zap only the target TDP MMU shadow page in NX recovery	2022-03-08 09:31:54 -05:00
tdp_mmu.c	KVM: x86/mmu: Require mmu_lock be held for write to zap TDP MMU range	2022-03-08 09:31:55 -05:00
tdp_mmu.h	KVM: x86/mmu: Zap only the target TDP MMU shadow page in NX recovery	2022-03-08 09:31:54 -05:00