• Will Deacon's avatar
    KVM: Pass MMU notifier range flags to kvm_unmap_hva_range() · fdfe7cbd
    Will Deacon authored
    The 'flags' field of 'struct mmu_notifier_range' is used to indicate
    whether invalidate_range_{start,end}() are permitted to block. In the
    case of kvm_mmu_notifier_invalidate_range_start(), this field is not
    forwarded on to the architecture-specific implementation of
    kvm_unmap_hva_range() and therefore the backend cannot sensibly decide
    whether or not to block.
    
    Add an extra 'flags' parameter to kvm_unmap_hva_range() so that
    architectures are aware as to whether or not they are permitted to block.
    
    Cc: <stable@vger.kernel.org>
    Cc: Marc Zyngier <maz@kernel.org>
    Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
    Cc: James Morse <james.morse@arm.com>
    Signed-off-by: default avatarWill Deacon <will@kernel.org>
    Message-Id: <20200811102725.7121-2-will@kernel.org>
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
    fdfe7cbd
mmu.c 32.4 KB