With the HVF in-kernel GICv3, QEMU's usb-storage races on the status packet
and Windows Setup stalls 10 s after every burst of reads when installing from
the ISO (utmapp/UTM#7970). Use the emulated interrupt controller until
upstream QEMU gets the fix from the UTM fork. Record the investigation in
windows11-arm64-install-speed.md.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
--install-from-img now works like --install-from-iso: the installation
media is the ISO path (WIN11_VM_INSTALL_ISO or the downloader's) with
.install.img in place of .iso, which is where
build-windows-install-disk.sh writes it by default. Drop the FILE argument
and WIN11_VM_INSTALL_IMG.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Reading the installation files through QEMU's emulated USB CD-ROM runs at a
few MB/s on macOS. --install-from-img FILE (or WIN11_VM_INSTALL_IMG) attaches
an installation disk image built by vm-images/build-windows-install-disk.sh as
an NVMe disk instead, which is read about 15 times faster. The image is
attached with snapshot=on because NVMe cannot report write protection and
Windows fails on a read-only volume.
Add windows11-arm64-install-speed.md with the analysis and measurements.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
guofangandClaude Sonnet 5.5