From: Phil Dennis-Jordan <phil@philjordan.eu>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: qemu-devel@nongnu.org, agraf@csgraf.de, peter.maydell@linaro.org,
pbonzini@redhat.com, rad@semihalf.com,
quic_llindhol@quicinc.com, marcin.juszkiewicz@linaro.org,
stefanha@redhat.com, mst@redhat.com, slp@redhat.com,
richard.henderson@linaro.org, eduardo@habkost.net,
marcel.apfelbaum@gmail.com, gaosong@loongson.cn,
jiaxun.yang@flygoat.com, chenhuacai@kernel.org,
kwolf@redhat.com, hreitz@redhat.com, philmd@linaro.org,
shorne@gmail.com, palmer@dabbelt.com, alistair.francis@wdc.com,
bmeng.cn@gmail.com, liwei1518@gmail.com,
dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com,
jcmvbkbc@gmail.com, marcandre.lureau@redhat.com,
berrange@redhat.com, akihiko.odaki@daynix.com,
qemu-arm@nongnu.org, qemu-block@nongnu.org,
qemu-riscv@nongnu.org
Subject: Re: [PATCH v3 00/14] macOS PV Graphics and new vmapple machine type
Date: Tue, 29 Oct 2024 22:20:53 +0100 [thread overview]
Message-ID: <CAAibmn0wc6a-BM+kC6MJDTAFJoaAR4cVnVd6dr1G6eC8Lt_QBw@mail.gmail.com> (raw)
In-Reply-To: <871q0xmwzb.fsf@draig.linaro.org>
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On Thu, 3 Oct 2024 at 10:06, Alex Bennée <alex.bennee@linaro.org> wrote:
>
> > There are currently a few limitations to this which aren't intrinsic,
> > just imperfect emulation of the VZF, but it's good enough to be just
> > about usable for some purposes:
> >
> > * macOS 12 guests only. Versions 13+ currently fail during early boot.
> > * macOS 11+ arm64 hosts only, with hvf accel. (Perhaps some differences
> > between Apple M series CPUs and TCG's aarch64 implementation? macOS
> > hosts only because ParavirtualizedGraphics.framework is a black box
> > implementing most of the logic behind the apple-gfx device.)
>
> We don't currently have TCG CPU models for the Apple Silicon processors.
> They are not too hard to add (basically setting the correct ID register
> bits, c.f. aarch64_neoverse_n1_initfn for an example). However that
> would only cover Aarch64 architectural features. We do no modelling of
> the extra instructions that Apple added (although in theory that should
> only be run in Apples own ML libraries).
>
This really isn't my area of expertise, and I don't see myself attempting
to make it work with TCG. Given that the OS only boots with the PV graphics
device, you can only really use this machine type on a macOS host, so there
aren't many reasons to use TCG over HVF. I suppose it might make debugging
the myriad other rough edges easier!
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prev parent reply other threads:[~2024-10-29 21:21 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-28 8:57 [PATCH v3 00/14] macOS PV Graphics and new vmapple machine type Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 01/14] hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support Phil Dennis-Jordan
2024-10-01 9:40 ` Akihiko Odaki
2024-10-02 13:33 ` Phil Dennis-Jordan
2024-10-03 7:09 ` Akihiko Odaki
2024-10-06 10:39 ` Phil Dennis-Jordan
2024-10-07 8:25 ` Akihiko Odaki
2024-10-09 15:06 ` Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 02/14] hw/display/apple-gfx: Adds PCI implementation Phil Dennis-Jordan
2024-09-28 10:39 ` BALATON Zoltan
2024-09-28 13:33 ` Phil Dennis-Jordan
2024-10-02 7:14 ` Akihiko Odaki
2024-10-02 13:39 ` Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 03/14] ui/cocoa: Adds non-app runloop on main thread mode Phil Dennis-Jordan
2024-10-02 7:23 ` Akihiko Odaki
2024-09-28 8:57 ` [PATCH v3 04/14] hw/display/apple-gfx: Adds configurable mode list Phil Dennis-Jordan
2024-10-04 4:17 ` Akihiko Odaki
2024-10-09 14:04 ` Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 05/14] MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 06/14] hw: Add vmapple subdir Phil Dennis-Jordan
2024-10-05 6:13 ` Akihiko Odaki
2024-09-28 8:57 ` [PATCH v3 07/14] hw/misc/pvpanic: Add MMIO interface Phil Dennis-Jordan
2024-10-05 6:13 ` Akihiko Odaki
2024-09-28 8:57 ` [PATCH v3 08/14] hvf: arm: Ignore writes to CNTP_CTL_EL0 Phil Dennis-Jordan
2024-10-05 6:14 ` Akihiko Odaki
2024-09-28 8:57 ` [PATCH v3 09/14] gpex: Allow more than 4 legacy IRQs Phil Dennis-Jordan
2024-10-04 4:54 ` Akihiko Odaki
2024-09-28 8:57 ` [PATCH v3 10/14] hw/vmapple/aes: Introduce aes engine Phil Dennis-Jordan
2024-10-04 5:32 ` Akihiko Odaki
2024-10-09 12:48 ` Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 11/14] hw/vmapple/bdif: Introduce vmapple backdoor interface Phil Dennis-Jordan
2024-10-05 5:12 ` Akihiko Odaki
2024-10-09 14:00 ` Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 12/14] hw/vmapple/cfg: Introduce vmapple cfg region Phil Dennis-Jordan
2024-10-05 5:35 ` Akihiko Odaki
2024-10-07 14:10 ` Phil Dennis-Jordan
2024-10-07 18:03 ` Akihiko Odaki
2024-10-09 13:08 ` Phil Dennis-Jordan
2024-10-12 10:40 ` Akihiko Odaki
2024-09-28 8:57 ` [PATCH v3 13/14] hw/vmapple/virtio-blk: Add support for apple virtio-blk Phil Dennis-Jordan
2024-10-05 5:47 ` Akihiko Odaki
2024-10-07 14:31 ` Phil Dennis-Jordan
2024-10-07 18:10 ` Akihiko Odaki
2024-10-09 12:52 ` Phil Dennis-Jordan
2024-09-28 8:57 ` [PATCH v3 14/14] hw/vmapple/vmapple: Add vmapple machine type Phil Dennis-Jordan
2024-10-05 6:11 ` Akihiko Odaki
2024-10-08 12:17 ` Phil Dennis-Jordan
2024-10-03 8:06 ` [PATCH v3 00/14] macOS PV Graphics and new " Alex Bennée
2024-10-29 21:20 ` Phil Dennis-Jordan [this message]
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