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| author |   Xiaoyao Li <xiaoyao.li@intel.com> | 2024-03-20 03:39:03 -0500 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2024-04-23 17:35:25 +0200 |
| commit | 37662d85b0b7dded0ebdf6747bef6c3bb7ed6a0c (patch) | |
| tree | b5d8be3492b7aa7e3df4d1ec71a44180255077fb /plugins/api.c | |
| parent | kvm/memory: Make memory type private by default if it has guest memfd backend (diff) | |
| download | qemu-37662d85b0b7dded0ebdf6747bef6c3bb7ed6a0c.tar.xz qemu-37662d85b0b7dded0ebdf6747bef6c3bb7ed6a0c.zip | |
HostMem: Add mechanism to opt in kvm guest memfd via MachineState
Add a new member "guest_memfd" to memory backends. When it's set
to true, it enables RAM_GUEST_MEMFD in ram_flags, thus private kvm
guest_memfd will be allocated during RAMBlock allocation.
Memory backend's @guest_memfd is wired with @require_guest_memfd
field of MachineState. It avoid looking up the machine in phymem.c.
MachineState::require_guest_memfd is supposed to be set by any VMs
that requires KVM guest memfd as private memory, e.g., TDX VM.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240320083945.991426-8-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'plugins/api.c')
0 files changed, 0 insertions, 0 deletions