bwlp/qemu.git/linux-user/x86_64, branch master

linux-user: Provide MADV_* definitions

2022-09-27T07:30:09+00:00

Provide MADV_* definitions using target_mman.h header, similar to what kernel does. Most architectures use the same values, with the exception of alpha and hppa. Signed-off-by: Ilya Leoshkevich Reviewed-by: Richard Henderson Message-Id: <20220906000839.1672934-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier

linux-user: use 'max' instead of 'qemu32' / 'qemu64' by default

2022-09-23T12:04:17+00:00

The 'qemu64' CPU model implements the least featureful x86_64 CPU that's possible. Historically this hasn't been an issue since it was rare for OS distros to build with a higher mandatory CPU baseline. With RHEL-9, however, the entire distro is built for the x86_64-v2 ABI baseline: https://developers.redhat.com/blog/2021/01/05/building-red-hat-enterprise-linux-9-for-the-x86-64-v2-microarchitecture-level It is likely that other distros may take similar steps in the not too distant future. For example, it has been suggested for Fedora on a number of occasions. This new baseline is not compatible with the qemu64 CPU model though. While it is possible to pass a '-cpu xxx' flag to qemu-x86_64, the usage of QEMU doesn't always allow for this. For example, the args are typically controlled via binfmt rules that the user has no ability to change. This impacts users who are trying to use podman on aarch64 platforms, to run containers with x86_64 content. There's no arg to podman that can be used to change the qemu-x86_64 args, and a non-root user of podman can not change binfmt rules without elevating privileges: https://github.com/containers/podman/issues/15456#issuecomment-1228210973 Changing to the 'max' CPU model gives 'qemu-x86_64' maximum compatibility with binaries it is likely to encounter in the wild, and not likely to have a significant downside for existing usage. Most other architectures already use an 'any' CPU model, which is often mapped to 'max' (or similar) already, rather than the oldest possible CPU model. For the sake of consistency the 'i386' architecture is also changed from using 'qemu32' to 'max'. Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Daniel P. Berrangé Message-Id: <20220923110413.70593-1-berrange@redhat.com> Signed-off-by: Laurent Vivier

linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.h

2022-02-01T07:01:38+00:00

Signed-off-by: Serge Belyshev Message-Id: <87ee4ql3yk.fsf_-_@depni.sinp.msu.ru> Signed-off-by: Laurent Vivier

linux-user: Move target_struct.h generic definitions to generic/

2022-01-11T17:40:44+00:00

Most targets share the same generic ipc structure definitions. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Laurent Vivier Message-Id: <20220107042600.149852-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier

linux-user: Split out do_prctl and subroutines

2022-01-06T10:40:52+00:00

Since the prctl constants are supposed to be generic, supply any that are not provided by the host. Split out subroutines for PR_GET_FP_MODE, PR_SET_FP_MODE, PR_GET_VL, PR_SET_VL, PR_RESET_KEYS, PR_SET_TAGGED_ADDR_CTRL, PR_GET_TAGGED_ADDR_CTRL. Return EINVAL for guests that do not support these options rather than pass them on to the host. Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson Message-Id: <20211227150127.2659293-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier

linux-user: target_syscall.h remove definition TARGET_MINSIGSTKSZ

2022-01-06T10:40:52+00:00

TARGET_MINSIGSTKSZ has been defined in generic/signal.h or target_signal.h, We don't need to define it again. Signed-off-by: Song Gao Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <1637893388-10282-3-git-send-email-gaosong@loongson.cn> Signed-off-by: Laurent Vivier

linux-user: Move target_signal.h generic definitions to generic/signal.h

2022-01-06T10:40:52+00:00

No code change Suggested-by: Richard Henderson Signed-off-by: Song Gao Reviewed-by: Laurent Vivier Reviewed-by: Richard Henderson Message-Id: <1637893388-10282-2-git-send-email-gaosong@loongson.cn> Signed-off-by: Laurent Vivier

linux-user/i386: Implement setup_sigtramp

2021-10-01T10:03:48+00:00

Create and record the two signal trampolines. Use them when the guest does not use SA_RESTORER. Note that x86_64 does not use this code. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson Message-Id: <20210929130553.121567-11-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier

linux-user: update syscall.tbl to Linux v5.13

2021-07-13T11:59:59+00:00

Updated running scripts/update-syscalltbl.sh Signed-off-by: Laurent Vivier Message-Id: <20210708215756.268805-4-laurent@vivier.eu> Signed-off-by: Laurent Vivier

linux-user: Extract target errno to 'target_errno_defs.h'

2021-07-12T19:53:35+00:00

We want to access the target errno indepently of the rest of the linux-user code. Move the header containing the generic errno definitions ('errno_defs.h') to 'generic/target_errno_defs.h', create a new 'target_errno_defs.h' in each target which itself includes 'generic/target_errno_defs.h'. Suggested-by: Richard Henderson Reviewed-by: Laurent Vivier Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20210708170550.1846343-4-f4bug@amsat.org> Signed-off-by: Laurent Vivier