diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2026-10-19 13:54:07 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2026-10-21 03:24:11 -0400 |
| commit | 28d5df7b727471439ca343208e5be1fd55338128 (patch) | |
| tree | 4e1e24a6c42fd1f3b1330549225b6d921c2bcd63 /include/linux | |
| parent | 3a74cf568b9afd0eaa138bc40308c3ddf0f547bc (diff) | |
KVM: split CONFIG_KVM_PRIVATE_MEMATTR_VM out of KVM_VM_MEMORY_ATTRIBUTES
With Linux 7.4 the "private" memory attribute was moved from the VM
to the individual guest_memfd file descriptor. The old semantics are
available for backwards compatibility via CONFIG_KVM_VM_MEMORY_ATTRIBUTES.
However, this ties support for VM memory attributes entirely to
a backwards compatibility symbol, which is a problem when adding
VM memory attributes other than PRIVATE. Thus, make
CONFIG_KVM_VM_MEMORY_ATTRIBUTES the equivalent of the old
CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES, and use a more descriptive name
for the private memory attribute. Do this now, instead of waiting
for more attributes to come, before distros start adjusting
their build configuration.
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kvm_host.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 4d4e76a50d77..09c57d31d153 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2582,12 +2582,14 @@ bool kvm_arch_pre_set_vm_memory_attributes(struct kvm *kvm, struct kvm_gfn_range *range); bool kvm_arch_post_set_vm_memory_attributes(struct kvm *kvm, struct kvm_gfn_range *range); +#endif /* CONFIG_KVM_VM_MEMORY_ATTRIBUTES */ +#ifdef CONFIG_KVM_PRIVATE_MEMATTR_VM static inline bool kvm_vm_is_private_gfn(struct kvm *kvm, gfn_t gfn) { return kvm_get_vm_memory_attributes(kvm, gfn) & KVM_MEMORY_ATTRIBUTE_PRIVATE; } -#endif /* CONFIG_KVM_VM_MEMORY_ATTRIBUTES */ +#endif /* CONFIG_KVM_PRIVATE_MEMATTR_VM */ #ifdef kvm_arch_has_private_mem extern bool gmem_in_place_conversion; |