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| author | Xiaoyao Li <xiaoyao.li@intel.com> | 2024-03-20 03:39:06 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-23 17:35:25 +0200 |
| commit | 0811baed49010a9b651b8029ab6b9828b09a884f (patch) | |
| tree | 260b05bbc1ab1000ddf3f40eeefd46f9bd3d9476 /include/sysemu | |
| parent | 72853afc638b3e28779c86dd05da2f3bb149fe2c (diff) | |
| download | qemu-0811baed49010a9b651b8029ab6b9828b09a884f.zip qemu-0811baed49010a9b651b8029ab6b9828b09a884f.tar.gz qemu-0811baed49010a9b651b8029ab6b9828b09a884f.tar.bz2 | |
kvm: Introduce support for memory_attributes
Introduce the helper functions to set the attributes of a range of
memory to private or shared.
This is necessary to notify KVM the private/shared attribute of each gpa
range. KVM needs the information to decide the GPA needs to be mapped at
hva-based shared memory or guest_memfd based private memory.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-ID: <20240320083945.991426-11-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/sysemu')
| -rw-r--r-- | include/sysemu/kvm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index bd247f3..594ae9b 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -536,4 +536,8 @@ void kvm_mark_guest_state_protected(void); * reported for the VM. */ bool kvm_hwpoisoned_mem(void); + +int kvm_set_memory_attributes_private(hwaddr start, uint64_t size); +int kvm_set_memory_attributes_shared(hwaddr start, uint64_t size); + #endif |