diff options
| author | Ben Gardon <bgardon@google.com> | 2021-05-18 10:34:12 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 13:09:26 -0400 |
| commit | a255740876f006eb9041fadcc4750557d26add5f (patch) | |
| tree | 6053a849eecf9964b4d0a28bcff167448ec0d5ed /arch/x86/include/asm/kvm_host.h | |
| parent | b10a038e84d188e15819058b2978b2daa9853aeb (diff) | |
KVM: x86/mmu: Add a field to control memslot rmap allocation
Add a field to control whether new memslots should have rmaps allocated
for them. As of this change, it's not safe to skip allocating rmaps, so
the field is always set to allocate rmaps. Future changes will make it
safe to operate without rmaps, using the TDP MMU. Then further changes
will allow the rmaps to be allocated lazily when needed for nested
oprtation.
No functional change expected.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210518173414.450044-6-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 9c7ced0e3171..11798a9ff3e9 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1124,6 +1124,12 @@ struct kvm_arch { */ spinlock_t tdp_mmu_pages_lock; #endif /* CONFIG_X86_64 */ + + /* + * If set, rmaps have been allocated for all memslots and should be + * allocated for any newly created or modified memslots. + */ + bool memslots_have_rmaps; }; struct kvm_vm_stat { |