From: Sunil V L <sunilvl@ventanamicro.com>
To: Andrea Bolognani <abologna@redhat.com>
Cc: Andrew Jones <ajones@ventanamicro.com>,
qemu-riscv@nongnu.org, qemu-devel@nongnu.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Alistair Francis <alistair.francis@wdc.com>,
Bin Meng <bin.meng@windriver.com>,
Weiwei Li <liweiwei@iscas.ac.cn>,
Daniel Henrique Barboza <dbarboza@ventanamicro.com>,
Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
Subject: Re: [PATCH v4 0/3] hw/riscv/virt: pflash improvements
Date: Fri, 31 May 2024 18:48:06 +0530 [thread overview]
Message-ID: <ZlnODgN5wbKgqY9F@sunil-laptop> (raw)
In-Reply-To: <CABJz62PXn7g+Qa5kUsrYYAO3_pqVHwpk0z2DLpgq2pspBA4biQ@mail.gmail.com>
On Thu, May 30, 2024 at 04:37:56AM -0700, Andrea Bolognani wrote:
> 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...
>
Hi Andrea,
It is still WIP. DT patches (which was a dependency for ACPI) for AIA
interrupt controllers got merged recently and available in 6.10-rc1. So,
I hope ACPI patches will be merged within next couple of merge windows
provided maintainers of different subsystems will have sufficient time
to review.
Thanks,
Sunil
prev parent reply other threads:[~2024-05-31 13:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-25 16:48 [PATCH v4 0/3] hw/riscv/virt: pflash improvements Sunil V L
2023-05-25 16:48 ` [PATCH v4 1/3] hw/riscv: virt: Assume M-mode FW in pflash0 only when "-bios none" Sunil V L
2023-05-25 16:48 ` [PATCH v4 2/3] riscv/virt: Support using pflash via -blockdev option Sunil V L
2023-05-26 9:53 ` Philippe Mathieu-Daudé
2023-05-26 10:20 ` Sunil V L
2023-05-25 16:48 ` [PATCH v4 3/3] docs/system: riscv: Add pflash usage details Sunil V L
2023-05-26 9:48 ` Philippe Mathieu-Daudé
2023-05-25 18:03 ` [PATCH v4 0/3] hw/riscv/virt: pflash improvements Andrea Bolognani
2023-05-26 6:39 ` Andrew Jones
2023-05-26 7:49 ` Andrea Bolognani
2023-05-26 8:19 ` Sunil V L
2023-05-26 8:34 ` Andrew Jones
2023-05-26 8:42 ` Andrea Bolognani
2023-05-26 9:10 ` Andrew Jones
2023-11-20 14:29 ` Andrea Bolognani
2023-11-20 14:36 ` Sunil V L
2024-05-30 11:37 ` Andrea Bolognani
2024-05-31 13:18 ` Sunil V L [this message]
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