tree 4cb03ffd33a776a3a5a6acd613ae3bb58575c4ee
parent e136648c5c95ee4ea233cccf999c07e065bef26d
author Tom Dohrmann <erbse.13@gmx.de> 1725344993 +0000
committer Paolo Bonzini <pbonzini@redhat.com> 1729186890 +0200

accel/kvm: check for KVM_CAP_READONLY_MEM on VM

KVM_CAP_READONLY_MEM used to be a global capability, but with the
introduction of AMD SEV-SNP confidential VMs, this extension is not
always available on all VM types [1,2].

Query the extension on the VM level instead of on the KVM level.

[1] https://patchwork.kernel.org/project/kvm/patch/20240809190319.1710470-2-seanjc@google.com/
[2] https://patchwork.kernel.org/project/kvm/patch/20240902144219.3716974-1-erbse.13@gmx.de/

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Tom Dohrmann <erbse.13@gmx.de>
Link: https://lore.kernel.org/r/20240903062953.3926498-1-erbse.13@gmx.de
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>