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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2024-10-23 02:24:31 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-11-16 08:42:24 -0800 |
| commit | fb7f3572b111ffb6c2dd2c7f6c5b4dc57dd8a3f5 (patch) | |
| tree | fb738167a0beebf6d45a663454a9d2d5258d0d93 /include/hw/misc/stm32l4x5_exti.h | |
| parent | 2a339fee450638b512c5122281cb5ab49331cfb8 (diff) | |
| download | qemu-fb7f3572b111ffb6c2dd2c7f6c5b4dc57dd8a3f5.zip qemu-fb7f3572b111ffb6c2dd2c7f6c5b4dc57dd8a3f5.tar.gz qemu-fb7f3572b111ffb6c2dd2c7f6c5b4dc57dd8a3f5.tar.bz2 | |
linux-user: Tolerate CONFIG_LSM_MMAP_MIN_ADDR
Running qemu-i386 on a system running with SELinux in enforcing mode
(more precisely: s390x trixie container on Fedora 40) fails with:
qemu-i386: tests/tcg/i386-linux-user/sigreturn-sigmask: Unable to find a guest_base to satisfy all guest address mapping requirements
00000000-ffffffff
The reason is that main() determines mmap_min_addr from
/proc/sys/vm/mmap_min_addr, but SELinux additionally defines
CONFIG_LSM_MMAP_MIN_ADDR, which is normally larger: 32K or 64K, but,
in general, can be anything. There is no portable way to query its
value: /boot/config, /proc/config and /proc/config.gz are distro- and
environment-specific.
Once the identity map fails, the magnitude of guest_base does not
matter, so fix by starting the search from 1M or 1G.
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2598
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20241023002558.34589-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/hw/misc/stm32l4x5_exti.h')
0 files changed, 0 insertions, 0 deletions