bwlp/qemu.git/linux-user/aarch64/target_syscall.h, branch spice_video_codecs

Replace TARGET_WORDS_BIGENDIAN

2022-04-06T08:50:37+00:00

Convert the TARGET_WORDS_BIGENDIAN macro, similarly to what was done with HOST_BIG_ENDIAN. The new TARGET_BIG_ENDIAN macro is either 0 or 1, and thus should always be defined to prevent misuse. Signed-off-by: Marc-André Lureau Suggested-by: Halil Pasic Reviewed-by: Richard Henderson Message-Id: <20220323155743.1585078-8-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini

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/aarch64: Implement PR_MTE_TCF and PR_MTE_TAG

2021-02-16T13:08:25+00:00

These prctl fields are required for the function of MTE. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20210212184902.1251044-24-richard.henderson@linaro.org Signed-off-by: Peter Maydell

linux-user/aarch64: Implement PR_TAGGED_ADDR_ENABLE

2021-02-16T13:06:16+00:00

This is the prctl bit that controls whether syscalls accept tagged addresses. See Documentation/arm64/tagged-address-abi.rst in the linux kernel. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20210212184902.1251044-21-richard.henderson@linaro.org Signed-off-by: Peter Maydell

linux-user: Add strace support for printing arguments of syscalls used to lock and unlock memory

2020-08-27T10:29:50+00:00

This patch implements strace argument printing functionality for following syscalls: * mlock, munlock, mlockall, munlockall - lock and unlock memory int mlock(const void *addr, size_t len) int munlock(const void *addr, size_t len) int mlockall(int flags) int munlockall(void) man page: https://man7.org/linux/man-pages/man2/mlock.2.html Implementation notes: Syscall mlockall() takes an argument that is composed of predefined values which represent flags that determine the type of locking operation that is to be performed. For that reason, a printing function "print_mlockall" was stated in file "strace.list". This printing function uses an already existing function "print_flags()" to print the "flags" argument. These flags are stated inside an array "mlockall_flags" that contains values of type "struct flags". These values are instantiated using an existing macro "FLAG_TARGET()" that crates aproppriate target flag values based on those defined in files '/target_syscall.h'. These target flag values were changed from "TARGET_MLOCKALL_MCL*" to "TARGET_MCL_*" so that they can be aproppriately set and recognised in "strace.c" with "FLAG_TARGET()". Value for "MCL_ONFAULT" was added in this patch. This value was also added in "syscall.c" in function "target_to_host_mlockall_arg()". Because this flag value was added in kernel version 4.4, it is enwrapped in an #ifdef directive (both in "syscall.c" and in "strace.c") as to support older kernel versions. The other syscalls have only primitive argument types, so the rest of the implementation was handled by stating an appropriate printing format in file "strace.list". Syscall mlock2() is not implemented in "syscall.c" and thus it's argument printing is not implemented in this patch. Signed-off-by: Filip Bozuta Reviewed-by: Laurent Vivier Message-Id: <20200811164553.27713-4-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier

linux-user/aarch64: Use qemu_guest_getrandom for PAUTH keys

2019-05-22T16:38:54+00:00

Use a better interface for random numbers than rand() * 3. Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson

linux-user: Implement PR_PAC_RESET_KEYS

2019-02-05T16:52:39+00:00

Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20190201195404.30486-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell

linux-user: Initialize aarch64 pac keys

2019-02-01T15:05:22+00:00

Initialize the keys to a non-zero value on process start. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell

linux-user: Implement aarch64 PR_SVE_SET/GET_VL

2018-03-09T17:09:43+00:00

As an implementation choice, widening VL has zeroed the previously inaccessible portion of the sve registers. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Acked-by: Alex Bennée Message-id: 20180303143823.27055-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell