Debian Patches

Status for qemu/1:10.1.1+ds-1

Patch Description Author Forwarded Bugs Origin Last update
microvm-default-machine-type.patch set default machine type to be microvm if CONFIG_MICROVM is defined
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index a8d354aabe..1806cde036 100644		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2020-02-22
static-linux-user-stubs.diff static linux-user stubs
When building a static linux-user binaries, ld complains:

/usr/bin/ld: libglib-2.0.a(gutils.c.o): in function `g_get_user_database_entry':
warning: Using 'getpwuid' in statically linked applications requires...
warning: Using 'getpwnam_r' in statically linked applications requires...
warning: Using 'getpwuid_r' in statically linked applications requires...

This is because glib, in their "misc utils" unit (gutils.c), has functions
to return current user home directory and similar stuff, and this unit is
almost always included into the link, even if these particular functions
aren't used by the application.

Ideally this should be fixed on the glib side, by splitting gutils.c into
several files, so unused symbols wont be included in the link at all.
But this requires extra efforts from glib side, and static linkage with
glib is very rare.

So just stub-out a few getpw* symbols here, - this will eliminate the
warning and will make resulting binary quite a bit smaller.

It would be nice to eliminate whole dlopen() too.

diff --git a/linux-user/main.c b/linux-user/main.c		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2024-04-25
note-missing-module-pkg-name.diff Note missing module package name
Debian ships different modules in different packages.
By default qemu ignores the fact that it can not load
a module, pretending this module never existed.
Give a useful hint about the package where the module
in question resides.

This is a hack, but it makes qemu packaged in debian
more user-friendly.

diff --git a/audio/audio.c b/audio/audio.c
index 7ac74f9e16..15f1071bdc 100644		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2021-08-22
skip-unpack-edk2-blobs.patch skip unpacking of edk2 blobs
Debian strips the blobs from qemu.orig.tar.gz so the code
fails to unpack the missing files.

diff --git a/pc-bios/meson.build b/pc-bios/meson.build
index a7224ef469..ddaedd95af 100644		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2023-04-01
skip-install-dtb.patch skip installing dtb files
Debian strips the blobs from qemu.orig.tar.gz so the code
fails to unpack the missing files. The dtb files are built
in d/rules for the indep build.		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2025-07-27
qemu-bridge-helper-path.patch set proper path for qemu-bridge-helper binary in the docs
Upstream should propagate this path from the config option.
This is a dumb-n-quick fix.

diff --git a/qemu-options.hx b/qemu-options.hx
index b56f6b2fb2..fe138c83d3 100644		 Michael Tokarev <mjt@tls.msk.ru> no debian 2023-04-18
gnu-hurd.patch Add OS detection and support for GNU/Hurd
Adds minimal (just OS detection) "support" for
GNU/Hurd. Just a test for now.		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2024-08-24
qboot-Disable-LTO-for-ELF-binary-build-step.patch [PATCH] qboot: Disable LTO for ELF binary build step
If LTO is enabled by default qboot fails to link as it exposes
a few issues that break the build:

../code16.c: Assembler messages:
../code16.c:37: Error: redundant addr32 prefix
../code16.c:27: Error: redundant addr32 prefix
../code16.c:18: Error: redundant addr32 prefix

Until fixed suppress this behavior by adding -fno-lto to the end
of the linker flags.		 Christian Ehrhardt <christian.ehrhardt@canonical.com> yes upstream https://gitlab.com/bonzini/qboot/-/merge_requests/32 2022-07-06
u-boot-sam460ex-fdi.patch u-boot-sam460ex: fdi fix
Fix the missing extern in a variable declaration,
resulting in this variable being repeated each time
this header is included, so the link with modern gcc
fails.


diff --git a/roms/u-boot-sam460ex/board/ACube/common/vesa.h b/roms/u-boot-sam460ex/board/ACube/common/vesa.h
index a6c32c3c2c..99672aa67b 100644		 Michael Tokarev <mjt@tls.msk.ru> yes 2023-04-01
u-boot-sam460ex-mstring.patch u-boot-sam460ex: remove obsolete -mstring gcc option
Modern gcc complains about it.


diff --git a/roms/u-boot-sam460ex/arch/powerpc/cpu/ppc4xx/config.mk b/roms/u-boot-sam460ex/arch/powerpc/cpu/ppc4xx/config.mk
index 8f47c9b728..cf4414cee6 100644		 Michael Tokarev <mjt@tls.msk.ru> yes 2023-10-22
u-boot-sam460ex-build.patch u-boot-sam460ex: build fixes
Fixes or works around numerous build issues and one real bug.

Most are due to new defaults in gcc (in debian), like
-Werror=implicit-function-declarations (there are a lot of missing decls)
-Werror=incompatible-pointer-types (function types mismatches)
-Werror=int-conversion (free int <=> pointer conversion)


diff --git a/roms/u-boot-sam460ex/board/ACube/Sam460ex/Sam460ex.c b/roms/u-boot-sam460ex/board/ACube/Sam460ex/Sam460ex.c
index 4d5b953c02..5ecf16dbe2 100644		 Michael Tokarev <mjt@tls.msk.ru> yes debian 2024-08-03
u-boot-sam460ex-stdc23.patch roms/u-boot-sam460ex: support c23 (bool)
In c23, bool, true and false are keywords,
don't try to (re)define them. Instead,
include <stdbool.h>.

diff --git a/roms/u-boot-sam460ex/include/xyzModem.h b/roms/u-boot-sam460ex/include/xyzModem.h		 Michael Tokarev <mjt@tls.msk.ru> no debian 2025-08-25
SLOF-stdc23.patch roms/SLOF: support c23 (bool)
In c23, bool, true and false are keywords,
don't try to (re)define them.

diff --git a/roms/SLOF/lib/libc/include/stdbool.h b/roms/SLOF/lib/libc/include/stdbool.h		 Michael Tokarev <mjt@tls.msk.ru> no debian 2025-08-25
openbios-use-source_date_epoch-in-makefile.patch roms/openbios: Use SOURCE_DATE_EPOCH in Makefile.
Embedding the build time breaks reproducibility. Instead, use the date
specified by the SOURCE_DATE_EPOCH environment variable:

https://reproducible-builds.org/docs/source-date-epoch/

This patch relies on features of GNU date, and will need further
changes for portability to other systems.		 Vagrant Cascadian <vagrant@reproducible-builds.org> no 2020-06-21
seabios-hppa-use-consistent-date-and-remove-hostname.patch roms/seabios-hppa: Use consistent date and remove hostname.
Two issues break reproducibility; the time and hostname get embedded
in the resulting seabios binary.

Simply drop the hostname from the embedded version string, as it
shouldn't be needed in Debian package builds.

Use the SOURCE_DATE_EPOCH environment variable to set the build date
rather than the current time:

https://reproducible-builds.org/docs/source-date-epoch/		 Vagrant Cascadian <vagrant@reproducible-builds.org> no 2020-06-21
slof-remove-user-and-host-from-release-version.patch roms/SLOF/Makefile.gen: Remove user and host from release version.
This version string ends up in the slof.bin, leading to
reproducibility issues.		 Vagrant Cascadian <vagrant@reproducible-builds.org> no 2020-06-22
slof-ensure-ld-is-called-with-C-locale.patch slof/Makefile.gen: Ensure ld is called with the C locale.
The output of "ld -V" changes based on the environment's locale.		 Vagrant Cascadian <vagrant@reproducible-builds.org> no 2020-06-22
aarch64-linux-user-no-pauth.patch aarch64-linux-user: turn off pauth by default
By default, qemu emulates pauth feature (pauth_impdef) on aarch64 CPU.
However, it costs quite a lot of host CPU cycles to implement, which
results in significant slowdowns of the guest code which uses pauth.
Since more and more code uses uses pauth (which is implemented in-cpu
on aarch64, and costs basically nothing on real hardware), we observe
more and more slowness, to the effect of being impractical.

Turn off pauth emulation by default at least for the linux-user case,
so that foreign-arch aarch64 binaries aren't dramatically slow. For
the qemu system mode, things has to be backwards-compatible and
migratable between qemu versions, so things aren't that simple.

diff --git a/linux-user/aarch64/target_elf.h b/linux-user/aarch64/target_elf.h		 Michael Tokarev <mjt@tls.msk.ru> not-needed debian 2025-09-15
disable-pycotap.patch disable pycotap for now
pycotap is only needed for functional tests.
Disable it for now for building qemu.

diff --git a/pythondeps.toml b/pythondeps.toml		 Michael Tokarev <mjt@tls.msk.ru> not-needed 2024-12-27
tcg-arm-fix-tgen_deposit.patch tcg/arm: Fix tgen_deposit
When converting from tcg_out_deposit, the arguments were not
shuffled properly.		 Richard Henderson <richard.henderson@linaro.org> not-needed 2025-08-29
seabios-hppa-remove-acpi.patch seabios-hppa: remove ACPI
hppa does not have ACPI. Yet, seabios-hppa contains the ACPI
code, and creates and embeds ACPI tables. Which, strictly
speaking, requires (re)compilation of the provided source.

Instead of building ACPI tables with iasl, drop ACPI support
from the resulting seabios-hppa.

diff --git a/roms/seabios-hppa/Makefile.parisc b/roms/seabios-hppa/Makefile.parisc		 Michael Tokarev <mjt@tls.msk.ru> invalid 2025-09-13
riscv-on-ppc64-gcc15-121689.patch riscv-on-ppc64: work around gcc-15 bug 121689
See also: LP#2120835
https://lists.gnu.org/archive/html/qemu-devel/2025-08/msg03901.html

Based solely on work by Christian Ehrhardt.

diff --git a/target/riscv/pmu.c b/target/riscv/pmu.c		 Michael Tokarev <mjt@tls.msk.ru> yes upstream 2025-09-13

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