October 2018 - OpenBIOS - mail.coreboot.org

Re: [OpenBIOS] Back at it again( PCI Passthrough )
by Jd Lyons July 13, 2019

July 13, 2019

Ok, I made those changes to openbios, here is the output. > On May 8, 2018, at 6:50 AM, Joe van Tunen <joevt(a)shaw.ca> wrote: > > : (debug-feval) ( fcode# -- fcode# ) > \ Address > fcode-stream 1 - . here u. ." : " > > \ Indicate if word is compiled > state @ 0<> if > ." (compile) " > then > dup fcode>xt cell - lfa2name type > dup ." [ 0x" . ." ]" cr > ;

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[PATCH 0/4] Add virtio-blk driver support
by Mark Cave-Ayland Oct. 18, 2018

Oct. 18, 2018

These patches add support for booting from virtio-blk (PCI) devices as used by QEMU. Patches 1 and 2 add bootindex support which is the new way for passing boot order information from QEMU to OpenBIOS. Note that there are also corresponding patches for QEMU required, without which the generated device paths will be incorrect and cause virtio boot to fail. Patch 3 adds the legacy virtio-blk driver (it follows the 0.9 rather than the 1.0 specification). Patch 4 enables the new driver for both PPC and SPARC64 architectures so that virtio-blk devices will be usable out-of-the-box with QEMU. Once these patches have been applied to OpenBIOS (along with the corresponding fw path fixes for QEMU) it is possible to boot from virtio-blk devices like this: PPC: ./qemu-system-ppc -drive file=debian-9.0-powerpc-NETINST.iso,if=none,index=0,id=cd,media=cdrom \ -device virtio-blk-pci,drive=cd,bootindex=0 -m 256 -boot d SPARC: ./qemu-system-sparc64 -drive debian-9.0-sparc64-NETINST.iso,if=none,index=0,id=cd,media=cdrom \ -device virtio-blk-pci,bus=pciB,drive=cd,bootindex=0 -m 256 -boot d -nographic Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> Mark Cave-Ayland (4): ppc: add bootindex support SPARC64: add bootindex support drivers: add legacy virtio-blk driver config: enable virtio-blk driver for default PPC and SPARC64 builds arch/ppc/qemu/init.c | 55 ++++- arch/sparc64/boot.c | 2 +- arch/sparc64/boot.h | 2 +- arch/sparc64/openbios.c | 38 +++- config/examples/ppc_config.xml | 1 + config/examples/sparc64_config.xml | 1 + drivers/build.xml | 1 + drivers/pci.c | 18 ++ drivers/pci_database.c | 4 +- drivers/pci_database.h | 1 + drivers/virtio.c | 424 +++++++++++++++++++++++++++++++++++++ drivers/virtio.h | 331 +++++++++++++++++++++++++++++ include/drivers/drivers.h | 4 + 13 files changed, 862 insertions(+), 20 deletions(-) create mode 100644 drivers/virtio.c create mode 100644 drivers/virtio.h -- 2.11.0

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Ppc guest debugging?
by Jd Lyons Oct. 14, 2018

Oct. 14, 2018

I need to try and debug the macOS trampoline inits during the early boot process of OS 9. I’m thinking Qemu supports this, but I’m unsure how to set it up? I installed gdb-multiarch and started qemu with: Qemu-system-ppc -s -S The launched gdb-multiarch and connected to port 1234. Is this the correct toolchain for debugging PPC code on an X86 host, or do I need to do something else?

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[PATCH 0/2] 40p: update interrupt routing and model name
by Mark Cave-Ayland Oct. 5, 2018

Oct. 5, 2018

These patches update OpenBIOS to match the lastest 40p changes merged into QEMU and allow the Linux sandalfoot zImage to boot all the way to userspace. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> Mark Cave-Ayland (2): 40p: update interrupt routing code to match QEMU 40p: change residual data model name to IBM PPS Model 6015 arch/ppc/qemu/context.c | 2 +- arch/ppc/qemu/init.c | 2 +- drivers/pci.c | 24 ++++++++++++++++++++---- 3 files changed, 22 insertions(+), 6 deletions(-) -- 2.11.0

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