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KVM: mmu: Add slots_arch_lock for memslot arch fields
authorBen Gardon <bgardon@google.com>
Tue, 18 May 2021 17:34:11 +0000 (10:34 -0700)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 17 Jun 2021 17:09:26 +0000 (13:09 -0400)
commit2448be32c93abb27a3ce8c19b9e2c9934000090f
tree6a3215a5a0ee02fcfd0e3da7fb1456d1a4756274tree | snapshot
parenta150eba46b07aa7a460ec01920648def8cd51d8acommit | diff
KVM: mmu: Add slots_arch_lock for memslot arch fields

Add a new lock to protect the arch-specific fields of memslots if they
need to be modified in a kvm->srcu read critical section. A future
commit will use this lock to lazily allocate memslot rmaps for x86.

Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210518173414.450044-5-bgardon@google.com>
[Add Documentation/ hunk. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Documentation/virt/kvm/locking.rst diff | blob | history
include/linux/kvm_host.h diff | blob | history
virt/kvm/kvm_main.c diff | blob | history
Linux Kernel Source Tree.