On Mon, Nov 20, 2023 at 08:06:19PM GMT, Sunil V L wrote: > On Mon, Nov 20, 2023 at 02:29:28PM +0000, Andrea Bolognani wrote: > > On Fri, May 26, 2023 at 11:10:12AM +0200, Andrew Jones wrote: > > > > > > So, are edk2 users the only ones who would (temporarily) need to > > > > > > manually turn ACPI off if virt-manager started enabling it by > > > > > > default? > > > > > > > > > > I assume so, but I'm not tracking firmware status. If the firmware > > > > > doesn't extract the ACPI tables from QEMU and present them to the > > > > > guest (afaik only edk2 does that), then the guest kernel falls back > > > > > to DT, which is why it's working for you. > > > > > > > > > > I suppose we should wait until Linux merges the ACPI patches, before > > > > > adding RISC-V to the libvirt capabilities ACPI list. > > > > > > > > That sounds reasonable to me, but note that 1) the libvirt change > > > > might take a while to propagate to distros and 2) someone will have > > > > to remind me to prepare such a patch when the time comes ;) > > > > > > Initial ACPI support will probably be merged for 6.4. So maybe it is > > > time to get the libvirt side of things going. > > > > Randomly remembered about this. Did ACPI support make it into 6.4 > > after all? Is now a good time to change libvirt? > > Hi Andrea, > > Not yet. While basic ACPI changes are merged, the interrupt controller > support is still going on. Looks like it will take few merge windows to > get ACPI fully supported. So, we still need to wait for libvirt change.
Hey, I've been working on making RISC-V support a bit smoother across the virtualization stack recently, and I just so happened to remember that this topic was still pending. I've tried manually switching ACPI on for an existing Fedora RISC-V guest running under TCG and booting via UEFI, which promptly made it stop working, so I assume the necessary bits haven't made it into the kernel yet. Is anyone actually tracking that work? We've been waiting for it to land for a fairly long time at this point... Thanks. -- Andrea Bolognani / Red Hat / Virtualization
