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f93b76958a
qemu-e2k/linux-user
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Ilya Leoshkevich f93b76958a linux-user: Passthrough MADV_DONTNEED for certain file mappings 
This is a follow-up for commit 892a4f6a75 ("linux-user: Add partial
support for MADV_DONTNEED"), which added passthrough for anonymous
mappings. File mappings can be handled in a similar manner.

In order to do that, mark pages, for which mmap() was passed through,
with PAGE_PASSTHROUGH, and then allow madvise() passthrough for these
pages. Drop the explicit PAGE_ANON check, since anonymous mappings are
expected to have PAGE_PASSTHROUGH anyway.

Add PAGE_PASSTHROUGH to PAGE_STICKY in order to keep it on mprotect().

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220725125043.43048-1-iii@linux.ibm.com>
Message-Id: <20220906000839.1672934-5-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-09-27 09:30:46 +02:00
..
aarch64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
alpha linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
arm linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
cris linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
generic linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
hexagon linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
hppa linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
i386 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
include linux-user/host/s390: Treat EX and EXRL as writes 2022-05-23 22:54:02 +02:00
loongarch64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
m68k linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
microblaze linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
mips linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
mips64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
nios2 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
openrisc linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
ppc linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
riscv linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
s390x linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
sh4 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
sparc linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
x86_64 linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
xtensa linux-user: Provide MADV_* definitions 2022-09-27 09:30:09 +02:00
cpu_loop-common.h linux-user: Log failing executable in EXCP_DUMP() 2022-09-27 09:29:33 +02:00
elfload.c linux-user: Honor PT_GNU_STACK 2022-09-06 08:04:25 +01:00
errnos.c.inc linux-user: Simplify host <-> target errno conversion using macros 2021-07-12 21:53:35 +02:00
exit.c linux-user: Don't include gdbstub.h in qemu.h 2021-09-13 20:35:45 +02:00
fd-trans.c linux-user: Fix inotify on aarch64 2022-01-27 16:58:33 +01:00
fd-trans.h fd-trans: Fix race condition on reallocation of the translation table. 2021-07-12 21:54:46 +02:00
flat.h linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
flatload.c linux-user/flatload.c: Fix setting of image_info::end_code 2022-07-28 19:17:24 +02:00
ioctls.h linux-user: implement more loop ioctls 2021-11-29 14:54:17 +01:00
linux_loop.h linux-user: implement more loop ioctls 2021-11-29 14:54:17 +01:00
linuxload.c linux-user: Clean up arg_start/arg_end confusion 2022-05-23 08:15:19 +02:00
loader.h linux-user: Split loader-related prototypes into loader.h 2021-09-13 20:35:44 +02:00
main.c semihosting: Create qemu_semihosting_guestfd_init 2022-06-28 04:36:50 +05:30
meson.build user: move common-user includes to a subdirectory of {bsd,linux}-user/ 2022-01-12 14:08:29 +01:00
mmap.c linux-user: Passthrough MADV_DONTNEED for certain file mappings 2022-09-27 09:30:46 +02:00
qemu.h linux-user: Honor PT_GNU_STACK 2022-09-06 08:04:25 +01:00
semihost.c semihosting: Remove qemu_semihosting_console_outs 2022-06-28 04:41:20 +05:30
signal-common.h linux-user: Add missing signals in strace output 2022-09-27 09:29:33 +02:00
signal.c linux-user: Add missing signals in strace output 2022-09-27 09:29:33 +02:00
socket.h Supply missing header guards 2019-06-12 13:20:21 +02:00
strace.c linux-user: Implement stracing madvise() 2022-09-27 09:30:44 +02:00
strace.h linux-user: Have do_syscall() use CPUArchState* instead of void* 2022-05-23 22:47:19 +02:00
strace.list linux-user: Implement stracing madvise() 2022-09-27 09:30:44 +02:00
syscall_defs.h linux-user: Add LoongArch syscall support 2022-07-04 11:08:57 +05:30
syscall_types.h linux-user: implement more loop ioctls 2021-11-29 14:54:17 +01:00
syscall.c linux-user: Add pidfd_open(), pidfd_send_signal() and pidfd_getfd() syscalls 2022-09-27 09:29:33 +02:00
target_flat.h Supply missing header guards 2019-06-12 13:20:21 +02:00
thunk.c linux-user: Move thunk.c from top-level 2021-12-20 10:12:29 -08:00
trace-events linux-user: Rename user_force_sig tracepoint to match function name 2022-01-18 12:41:42 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
uaccess.c linux-user: Split linux-user internals out of qemu.h 2021-09-13 20:35:45 +02:00
uname.c linux-user: Remove pointless CPU{ARCH}State casts 2022-05-23 22:47:20 +02:00
uname.h linux-user: Have do_syscall() use CPUArchState* instead of void* 2022-05-23 22:47:19 +02:00
user-internals.h linux-user: Add partial support for MADV_DONTNEED 2022-06-24 10:00:00 +02:00
user-mmap.h linux-user: Add partial support for MADV_DONTNEED 2022-06-24 10:00:00 +02:00
vm86.c linux-user: Split linux-user internals out of qemu.h 2021-09-13 20:35:45 +02:00