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qemu/linux-user
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Richard Henderson 26bab757d4 linux-user: Introduce PAGE_ANON 
Record whether the backing page is anonymous, or if it has file
backing.  This will allow us to get close to the Linux AArch64
ABI for MTE, which allows tag memory only on ram-backed VMAs.

The real ABI allows tag memory on files, when those files are
on ram-backed filesystems, such as tmpfs.  We will not be able
to implement that in QEMU linux-user.

Thankfully, anonymous memory for malloc arenas is the primary
consumer of this feature, so this restricted version should
still be of use.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210212184902.1251044-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-02-16 11:04:53 +00:00
..
aarch64 semihosting: Change common-semi API to be architecture-independent 2021-01-18 10:05:06 +00:00
alpha linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
arm semihosting: Change common-semi API to be architecture-independent 2021-01-18 10:05:06 +00:00
cris linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
generic linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
host linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
hppa linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
i386 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
m68k linux-user: Correct definition of stack_t 2020-11-11 10:59:39 +01:00
microblaze linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
mips linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
mips64 linux-user/mips: Support the n32 ABI for the R5900 2021-02-15 12:10:03 +01:00
nios2 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
openrisc linux-user: update syscall_nr.h to Linux 5.9-rc7 2020-10-26 11:39:23 +01:00
ppc linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
riscv riscv: Add semihosting support for user mode 2021-01-18 10:05:06 +00:00
s390x linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
sh4 linux-user: Correct definition of stack_t 2020-11-11 10:59:39 +01:00
sparc linux-user: target: signal: Support TARGET_SS_AUTODISARM 2021-02-13 22:50:50 +01:00
sparc64 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
tilegx linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
x86_64 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
xtensa linux-user: update syscall.tbl to Linux 5.9-rc7 2020-10-26 11:39:23 +01:00
cpu_loop-common.h cpu: Replace ENV_GET_CPU with env_cpu 2019-06-10 07:03:34 -07:00
elfload.c linux-user: Fix loading of BSS segments 2021-02-13 22:50:49 +01:00
errno_defs.h Supply missing header guards 2019-06-12 13:20:21 +02:00
exit.c gdbstub: drop CPUEnv from gdb_exit() 2021-01-18 10:05:06 +00:00
fd-trans.c linux-user,netlink: add IFLA_BRPORT_MRP_RING_OPEN, IFLA_BRPORT_MRP_IN_OPEN 2020-11-17 15:22:52 +01:00
fd-trans.h linux-user: move TargetFdTrans functions to their own file 2018-09-25 22:36:47 +02:00
flat.h linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
flatload.c linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
ioctls.h linux-user: Conditionalize TUNSETVNETLE 2021-01-07 05:09:06 -10:00
linux_loop.h linux-user: Add loop control ioctls 2016-07-19 15:22:33 +03:00
linuxload.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
main.c accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
meson.build semihosting: Move ARM semihosting code to shared directories 2021-01-18 10:05:06 +00:00
mmap.c linux-user: Introduce PAGE_ANON 2021-02-16 11:04:53 +00:00
qemu.h riscv: Add semihosting support 2021-01-18 10:05:06 +00:00
safe-syscall.S linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
semihost.c riscv: Add semihosting support 2021-01-18 10:05:06 +00:00
signal-common.h linux-user: Make sigaltstack stacks per-thread 2019-07-26 19:24:33 +02:00
signal.c linux-user/signal: Decode waitid si_code 2021-02-13 22:50:49 +01:00
socket.h Supply missing header guards 2019-06-12 13:20:21 +02:00
strace.c linux-user: Add IPv6 options to do_print_sockopt() 2021-01-21 13:27:08 +01:00
strace.list linux-user: Add strace support for printing arguments of some clock and time functions 2020-08-27 12:29:50 +02:00
syscall_defs.h linux-user: Support F_ADD_SEALS and F_GET_SEALS fcntls 2021-01-20 18:21:03 +01:00
syscall_types.h linux-user: Add support for btrfs ioctls used to scrub a filesystem 2020-09-03 01:09:35 +02:00
syscall.c tcg: Introduce target-specific page data for user-only 2021-02-16 11:04:52 +00:00
target_flat.h Supply missing header guards 2019-06-12 13:20:21 +02:00
trace-events linux-user: fix use of SIGRTMIN 2020-02-12 18:56:41 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
uaccess.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
uname.c cpu: Replace ENV_GET_CPU with env_cpu 2019-06-10 07:03:34 -07:00
uname.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
vm86.c linux-user: Use `qemu_log' for non-strace logging 2020-02-19 11:17:40 +01:00