On Tue, 14 Jan 2025 at 16:08, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > On 1/14/25 03:40, Ard Biesheuvel wrote: > > On Tue, 14 Jan 2025 at 08:33, Ard Biesheuvel <ardb@xxxxxxxxxx> wrote: > >> > >> On Tue, 14 Jan 2025 at 01:31, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > >>> > >>> Hi, > >>> > >>> On Wed, Dec 18, 2024 at 04:03:17PM +0100, Ard Biesheuvel wrote: > >>>> From: Ard Biesheuvel <ardb@xxxxxxxxxx> > >>>> > >>>> Remove the dependency on the decompression wrappers used by the legacy > >>>> decompressor, which do some odd things like providing a barebones > >>>> malloc() implementation. Instead, implement GZIP deflate and ZSTD > >>>> decompression in terms of the underlying libraries. > >>>> > >>>> Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> > >>> > >>> With this patch in linux-next, my loongarch boot tests with qemu > >>> no longer boot. Log message is: > >>> > >>> qemu log: > >>> EFI stub: Decompressing Linux Kernel... > >>> EFI stub: EFI_RNG_PROTOCOL unavailable > >>> EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path > >>> EFI stub: Exiting boot services > >>> > >>> ... and then there is nothing until I abort the emulation. > >>> > >>> Reverting this patch results in a build failure, so I awas not able to > >>> test it. Bisect results are atatched for reference. > >>> > >> > >> Thanks for the report - I'll drop the patch for now, and try again next cycle. > > > > Mind sharing your config/firmware/command line details? I'm failing to > > reproduce the issue. > > qemu-system-loongarch64 -M virt -cpu \ > la464 -kernel arch/loongarch/boot/vmlinuz.efi -smp 2 \ > -no-reboot -m 4G -initrd rootfs.cpio \ > -bios QEMU_EFI-loongarch64.fd \ > --append "panic=-1 kunit.stats_enabled=2 kunit.filter=speed>slow rdinit=/sbin/init console=ttyS0,115200 earlycon=uart8250,mmio,0x1fe001e0,115200n8" \ > -nographic -serial stdio -monitor none > > qemu version is 9.1. The EFI image is at > https://github.com/groeck/linux-build-test/blob/master/rootfs/firmware/QEMU_EFI-loongarch64.fd > and the initrd is at > https://github.com/groeck/linux-build-test/blob/master/rootfs/loongarch/rootfs.cpio.gz > > Configuration is defconfig with various debug options enabled. > > I'll be happy to make a test directory available with all information needed > if that helps. Please let me know. > Everything works fine with my distro QEMU: $ qemu-system-loongarch64 --version QEMU emulator version 8.2.4 (Debian 1:8.2.4+ds-1+build1) Copyright (c) 2003-2023 Fabrice Bellard and the QEMU Project developers and it doesn't matter if I use your firmware or my own (grabbed randomly from [0]) When I build QEMU from source (stable-9.2), things still work happily if I use that same firmware. With your firmware, my QEMU 9.2 is completely dead. Where did you find that image? I tried rebuilding it myself from a recent EDK2 base, but that doesn't work at all either. [0] https://github.com/AOSC-Dev/LoongArchQemuVirtFirmware
