fridtjof/qemu-cr16
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

accel/kvm: Switch to check KVM_CAP_GUEST_MEMFD and KVM_CAP_USER_MEMORY2 on VM

Browse source 
It returns more accruate result on checking KVM_CAP_GUEST_MEMFD and
KVM_CAP_USER_MEMORY2 on VM instance instead of on KVM platform.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20250728115707.1374614-2-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiaoyao Li 2025-07-28 19:57:05 +08:00 • committed by Paolo Bonzini
parent b5ff08e64e
commit 706cc70865
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
accel/kvm/kvm-all.c
View file

@ -2776,8 +2776,8 @@ static int kvm_init(AccelState *as, MachineState *ms)
kvm_supported_memory_attributes = kvm_vm_check_extension(s, KVM_CAP_MEMORY_ATTRIBUTES);
kvm_guest_memfd_supported =
kvm_check_extension(s, KVM_CAP_GUEST_MEMFD) &&
kvm_check_extension(s, KVM_CAP_USER_MEMORY2) &&
kvm_vm_check_extension(s, KVM_CAP_GUEST_MEMFD) &&
kvm_vm_check_extension(s, KVM_CAP_USER_MEMORY2) &&
(kvm_supported_memory_attributes & KVM_MEMORY_ATTRIBUTE_PRIVATE);
kvm_pre_fault_memory_supported = kvm_vm_check_extension(s, KVM_CAP_PRE_FAULT_MEMORY);