On Wed, 10 Mar 2021 at 13:52, Andrew Jones <drjo...@redhat.com> wrote: > > This series fixes IPA limit setting for mach-virt KVM guests. The > first patch restores the setting of IPA limits for values greater > than 40 (the default) when necessary. The second patch ensures values > less than 40 may also be used. The default KVM type=0 (which means > an IPA limit of 40) is still used for legacy KVM, since it must be. > > I tested this with a KVM that supports KVM_CAP_ARM_VM_IPA_SIZE and > with a KVM that does not. mach-virt's memory map didn't allow me > to test with less than 40 on the KVM_CAP_ARM_VM_IPA_SIZE supporting > host, but a quick VM fd opening test seemed to prove KVM would be > happy with that. Testing was done with a typical Linux guest and also > with kvm-unit-tests. > > I caught the bug that the first patch fixes by instrumenting QEMU > to observe which IPA limit was getting selected, and then seeing > that QEMU wasn't actually running mach-virt's kvm_type method at > all!
Applied to target-arm.next, thanks. -- PMM
