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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-01-06 08:24:00 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-01-08 14:09:38 +0100 |
| commit | 3a373e027d8b0ed14963cc84b48a11e69e4506b6 (patch) | |
| tree | b706ff192245bf2543f9637daa59c9527a7c4c0c /virt | |
| parent | KVM: introduce CONFIG_KVM_COMMON (diff) | |
| download | linux-3a373e027d8b0ed14963cc84b48a11e69e4506b6.tar.xz linux-3a373e027d8b0ed14963cc84b48a11e69e4506b6.zip | |
KVM: fix direction of dependency on MMU notifiers
KVM_GENERIC_MEMORY_ATTRIBUTES requires the generic MMU notifier code, because
it uses kvm_mmu_invalidate_begin/end. However, it would not work with a bespoke
implementation of MMU notifiers that does not use KVM_GENERIC_MMU_NOTIFIER,
because most likely it would not synchronize correctly on invalidation. So
the right thing to do is to note the problematic configuration if the
architecture does not select itself KVM_GENERIC_MMU_NOTIFIER; not to
enable it blindly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index ace72be98fb2..184dab4ee871 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -97,7 +97,7 @@ config KVM_GENERIC_MMU_NOTIFIER bool config KVM_GENERIC_MEMORY_ATTRIBUTES - select KVM_GENERIC_MMU_NOTIFIER + depends on KVM_GENERIC_MMU_NOTIFIER bool config KVM_PRIVATE_MEM |