On 8/13/26 4:38 PM, Michael Tokarev wrote:
On 8/12/26 20:17, Eric Farman wrote:
Update the s390 bios with recent fixes for out-of-bounds accesses.
Signed-off-by: Eric Farman <[email protected]>
---
pc-bios/s390-ccw.img | Bin 104136 -> 104216 bytes
1 file changed, 0 insertions(+), 0 deletions(-)
How do you guys build s390x-ccw.img - which compiler version(s) are
used for that?
This was gcc-16.1.1
Since we're updating source files in the stable series, where this
image is not the same as in current master, I'll have to rebuild
it after patching. Now I wonder how should I build it.
In official debian we always build it from source, and there were no
complains - maybe because no one uses debian to run qemu-system-s390x? :)
Anyway, on debian stable we have gcc-14.2.0, -- is it okay to use it for
building the image?
I should think so. But if it doesn't work, let's look into why.
Also, there's little changes in s390-ccw.img between qemu 11.0 and 11.1,
here's the list:
b2b5dec9295 s390x: Enable boot menu for virtio pci device
d0473643803 pc-bios/s390-ccw: write IPLB location for non-net virtio
devices
e26dafb207b pc-bios/s390-ccw: Verify virtio support when booting from
virtio PCI device on s390x
084feb90980 pc-bios/s390-ccw: Add per-queue notification offset for
multi-queue virtio configurations
730173107a9 pc-bios/s390-ccw/virtio.c: Fix missing break for PCI
notifications
c12bb74fd57 pc-bios/s390-ccw: Refactor byte swapping
I think I can pick all that stuff for 11.0.x series just fine, to avoid
(re)building the image for 11.0.x series.
For 10.0.x, things are really much larger:
14c29f29064 pc-bios/s390-ccw: Fix compiler warning when compiling with
DEBUG enabled
d72fb5e6b2e pc-bios/s390-ccw: Add support for virtio-blk-pci IPL
40d80aedd5a pc-bios/s390-ccw: Introduce virtio-pci functions
5ed17bb32ab pc-bios/s390-ccw: Introduce PCI device
d3da8afd1dd pc-bios/s390-ccw: Introduce CLP Architecture
4ff1499adab pc-bios/s390-ccw: Split virtio-ccw and generic virtio
ada7a60056c pc-bios/s390-ccw: Store device type independent of sense data
4228a92b2a3 s390x: Remove duplicate definitions of IPL types
dd8c8f16c02 pc-bios/s390-ccw: Always reset virtio device on failed
boot attempt
5dbabcfee89 pc-bios/s390-ccw: Remove redundant vring schid attribute
1ef532cbcfc pc-bios/s390-ccw: Fix misattributed function prototypes
acb00a7aae4 pc-bios/s390-ccw: link statically
fc24fd9342e pc-bios/s390-ccw: Add a boot menu for booting via
pxelinux.cfg
47d68f7475f pc-bios/s390-ccw: Make get_boot_index() from menu.c global
108977796fb pc-bios/s390-ccw: Allow up to 31 entries for pxelinux.cfg
a4adf071dc7 pc-bios/s390-ccw: Allow to select a different pxelinux.cfg
entry via loadparm
basically it's whole virtio and pci support added, which might be too much?
Please note that 10.0.x is an LTS series, also used in current debian
stable
(trixie), so maybe it is also okay to pick everything up to this series, to
bring the image in-line with current development.
In this case I'll just pick the commits updating the image too :)
What do you think?
Yeah, might be a bit much. The smaller fixes were contained enough that
targeting them for stable made sense. Of the four fixes that were in
this rebuild, three of the blamed commits date to the v2/v3 days. The
fourth went in in 9.2.
Everything else in your lists is new function and whatnot, so my gut
says leave it there.
Thanks,
Eric
