mirror of
https://github.com/yaelliethy/orchard.git
synced 2026-10-29 17:19:57 +00:00
26710d37c7
Boots an arm64 macOS guest on QEMU/TCG on Linux through the genuine Apple
chain -- AVPBooter -> iBootStage1 -> iBootStage2 -> stock XNU -- and renders
its desktop on the host's Vulkan.
QEMU (1044 lines over 18 files, 8 new):
* the `apple-vm` machine: Apple-style timer-on-FIQ wiring, the paravirtual
GPU device, a PAC master key installed across CPUs, and GICv2m's
`macos-compat` bit, without which macOS will not use the MSI frame;
* `bdif` NVRAM block writes. Upstream drops them, so a guest could never
persist a boot variable and every install phase repeated forever;
* `cfg`'s guest-visible random seed at its fixed offset;
* Apple pointer authentication under TCG: the register definitions come
from ChefKissInc/Inferno, the per-core key snapshot and the PSCI CPU_ON
key inheritance (restricted to a kernel caller by testing that its pc is
in the TTBR1 half) are ours. Without them secondaries run keyless and the
first cross-core authentication recurses through its own panic path;
* portability work upstream has not needed before: CONFIG_VMAPPLE was gated
on HVF and shipped off, hw/vmapple/aes.c has a VLA that only compiled
under clang, and the architectural op1-to-minimum-EL assertion rejects
Apple's IMPDEF registers.
The GPU is steelbrain/reims-vgpu, carried as a submodule pinned to the commit
this was tested against; the two changes it needs are in patches/reims-vgpu/.
The AVPBooter patch is NyanSatan's, from Virtual-iBoot-Fun.
Nothing Apple ships is in this repository. The macOS image is fetched from a
public tart image, and Apple's VM firmware is extracted from that image, where
Virtualization.framework carries it -- so no Mac is involved in the setup.
Measured on the reference host: desktop in 75 s at 12 vCPUs and 10 GB.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Signed-off-by: Youssef <soosef.youssef@gmail.com>
61 lines
2 KiB
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61 lines
2 KiB
Text
#
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# This is the gitdm configuration file for QEMU.
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#
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# It is to be used with LWN's git dataminer tool for generating
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# reports about development activity in the QEMU repo. The LWN gitdm
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# tool can be found at:
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#
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# git://git.lwn.net/gitdm.git
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#
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# A run to generate a report for the last year of activity would be
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#
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# git log --numstat --since "Last Year" | gitdm -n -l 10
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#
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# EmailAliases lets us cope with developers who use more
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# than one address or have changed addresses. This duplicates some of
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# the information in the existing .mailmap but in a slightly different
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# form.
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#
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EmailAliases scripts/gitdm/aliases
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#
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# EmailMap does the main work of mapping addresses onto
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# employers.
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#
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EmailMap scripts/gitdm/domain-map
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#
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# Use GroupMap to map a file full of addresses to the
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# same employer. This is used for people that don't post from easily
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# identifiable corporate emails. Please keep this list sorted.
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#
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GroupMap scripts/gitdm/group-map-alibaba Alibaba
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GroupMap scripts/gitdm/group-map-amd AMD
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GroupMap scripts/gitdm/group-map-cadence Cadence Design Systems
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GroupMap scripts/gitdm/group-map-codeweavers CodeWeavers
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GroupMap scripts/gitdm/group-map-facebook Facebook
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GroupMap scripts/gitdm/group-map-huawei Huawei
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GroupMap scripts/gitdm/group-map-ibm IBM
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GroupMap scripts/gitdm/group-map-janustech Janus Technologies
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GroupMap scripts/gitdm/group-map-microsoft Microsoft
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GroupMap scripts/gitdm/group-map-netflix Netflix
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GroupMap scripts/gitdm/group-map-redhat Red Hat
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GroupMap scripts/gitdm/group-map-wavecomp Wave Computing
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# Also group together our prolific individual contributors
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# and those working under academic or intern auspices
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GroupMap scripts/gitdm/group-map-individuals (None)
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GroupMap scripts/gitdm/group-map-academics Academics (various)
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GroupMap scripts/gitdm/group-map-interns GSoC/Outreachy Interns
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# Group together robots and other auto-reporters
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GroupMap scripts/gitdm/group-map-robots Robots (various)
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#
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#
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# Use FileTypeMap to map a file types to file names using regular
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# regular expressions.
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#
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FileTypeMap scripts/gitdm/filetypes.txt
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