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2024-04-24linux-user: Add FITRIM ioctlMichael Vogt
Tiny patch to add the missing FITRIM ioctl. Signed-off-by: Michael Vogt <mvogt@redhat.com> Message-Id: <20240403092048.16023-2-michael.vogt@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-24target/nios2: Remove the deprecated Nios II targetPhilippe Mathieu-Daudé
The Nios II target is deprecated since v8.2 in commit 9997771bc1 ("target/nios2: Deprecate the Nios II architecture"). Remove: - Buildsys / CI infra - User emulation - System emulation (10m50-ghrd & nios2-generic-nommu machines) - Tests Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Marek Vasut <marex@denx.de> Message-Id: <20240327144806.11319-3-philmd@linaro.org>
2024-03-12linux-user: Add FIFREEZE and FITHAW ioctlsMichael Vogt
Add missing FIFREEZE and FITHAW ioctls. Signed-off-by: Michael Vogt <michael.vogt@gmail.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20240220105726.8852-1-michael.vogt@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Split TARGET_PROT_* out of syscall_defs.hRichard Henderson
Move the values into the per-target target_mman.h headers Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-8-richard.henderson@linaro.org>
2023-07-15linux-user: Split TARGET_MAP_* out of syscall_defs.hRichard Henderson
Move the values into the per-target target_mman.h headers Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-7-richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_uint not unsigned in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_short not short in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_ushort not unsigned short in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_int not int in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_llong not long long in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_ullong not unsigned long long in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_uint not unsigned int in syscall_defs.hRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_llong not int64_t in syscall_defs.hRichard Henderson
Be careful not to change linux_dirent64, which is a host structure. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_ullong not uint64_t in syscall_defs.hRichard Henderson
Be careful not to change linux_dirent64, which is a host structure. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_int not int32_t in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Use abi_uint not uint32_t in syscall_defs.hRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Remove #if 0 block in syscall_defs.hRichard Henderson
These definitions are in sparc/signal.c. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Reformat syscall_defs.hRichard Henderson
Untabify and re-indent. We had a mix of 2, 3, 4, and 8 space indentation. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-30linux-user/sparc: Don't use 16-bit UIDs on SPARC V9Philippe Mathieu-Daudé
The 64-bit SPARC V9 syscall ABI uses 32-bit UIDs. Only enable the 16-bit UID wrappers for 32-bit SPARC (V7 and V8). Possibly missed in commit 992f48a036 ("Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)"). Reported-by: Gregor Riepl <onitake@gmail.com> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: Zach van Rijn <me@zv.io> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1394 Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230327131910.78564-1-philmd@linaro.org>
2023-03-10linux-user/sparc: Handle tag overflow trapsRichard Henderson
This trap is raised by taddcctv and tsubcctv insns. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-10-17linux-user: Fix struct statfs ABI on loongarch64WANG Xuerui
Previously the 32-bit version was incorrectly chosen, leading to funny but incorrect output from e.g. df(1). Simply select the version corresponding to the 64-bit asm-generic definition. For reference, this program should produce the same output no matter natively compiled or not, for loongarch64 or not: ```c #include <stdio.h> #include <sys/statfs.h> int main(int argc, const char *argv[]) { struct statfs b; if (statfs(argv[0], &b)) return 1; printf("f_type = 0x%lx\n", b.f_type); printf("f_bsize = %ld\n", b.f_bsize); printf("f_blocks = %ld\n", b.f_blocks); printf("f_bfree = %ld\n", b.f_bfree); printf("f_bavail = %ld\n", b.f_bavail); return 0; } // Example output on my amd64 box, with the test binary residing on a // btrfs partition. // Native and emulated output after the fix: // // f_type = 0x9123683e // f_bsize = 4096 // f_blocks = 268435456 // f_bfree = 168406890 // f_bavail = 168355058 // Output before the fix, note the messed layout: // // f_type = 0x10009123683e // f_bsize = 723302085239504896 // f_blocks = 168355058 // f_bfree = 2250817541779750912 // f_bavail = 1099229433104 ``` Fixes: 1f63019632 ("linux-user: Add LoongArch syscall support") Signed-off-by: WANG Xuerui <xen0n@gentoo.org> Cc: Song Gao <gaosong@loongson.cn> Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn> Cc: Andreas K. Hüttel <dilfridge@gentoo.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Andreas K. Huettel <dilfridge@gentoo.org> Message-Id: <20221006100710.427252-1-xen0n@gentoo.org> Signed-off-by: Song Gao <gaosong@loongson.cn>
2022-09-27linux-user: Implement PI futexesRichard Henderson
Define the missing FUTEX_* constants in syscall_defs.h Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220829021006.67305-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-09-27linux-user: Fix TARGET_PROT_SEM for XTENSAHelge Deller
The xtensa platform has a value of 0x10 for PROT_SEM. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220924114501.21767-2-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-07-04linux-user: Add LoongArch syscall supportSong Gao
Signed-off-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220624031049.1716097-5-gaosong@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09linux-user: Remove the deprecated ppc64abi32 targetThomas Huth
It's likely broken, and nobody cared for picking it up again during the deprecation phase, so let's remove this now. Since this is the last entry in deprecated_targets_list, remove the related code in the configure script, too. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Cédric Le Goater <clg@kaod.org> Acked-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20211215084958.185214-1-thuth@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220112112722.3641051-32-alex.bennee@linaro.org>
2022-02-01linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.hSerge Belyshev
Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru> Message-Id: <87ee4ql3yk.fsf_-_@depni.sinp.msu.ru> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-27linux-user/alpha: Fix target rlimits for alpha and rearrange for claritySerge Belyshev
Alpha uses different values of some TARGET_RLIMIT_* constants, which were missing and caused bugs like #577, fixed thus. Also rearranged all three (alpha, mips and sparc) that differ from everyone else for clarity. Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/577 Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <87y236lpwb.fsf@depni.sinp.msu.ru> [lv: replace tabs by spaces] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/hppa: Set FPE_CONDTRAP for CONDRichard Henderson
This si_code was changed in 75abf64287cab, for linux 4.17. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-9-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user: Remove TARGET_NSIGFPERichard Henderson
This define is unused, and we have no similar define for the other signal sub-codes. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/alpha: Set TRAP_UNK for bugchk and unknown gentrapRichard Henderson
These si_codes were changed in 535906c684fca, for linux 4.17. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: call set/getscheduler set/getparam directlyTonis Tiigi
There seems to be difference in syscall and libc definition of these methods and therefore musl does not implement them (1e21e78bf7). Call syscall directly to ensure the behavior of the libc of user application, not the libc that was used to build QEMU. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com> Message-Id: <20220105041819.24160-3-tonistiigi@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: add sched_getattr supportTonis Tiigi
These syscalls are not exposed by glibc. The struct type need to be redefined as it can't be included directly before https://lkml.org/lkml/2020/5/28/810 . sched_attr type can grow in future kernel versions. When client sends values that QEMU does not understand it will return E2BIG with same semantics as old kernel would so client can retry with smaller inputs. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com> Message-Id: <20220105041819.24160-2-tonistiigi@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/hexagon: Use generic target_stat64 structurePhilippe Mathieu-Daudé
Linux Hexagon port doesn't define a specific 'struct stat' but uses the generic one (see Linux commit 6103ec56c65c [*] "asm-generic: add generic ABI headers" which predates the introduction of the Hexagon port). Remove the target specific target_stat (which in fact is the target_stat64 structure but uses incorrect target_long and ABI unsafe long long types) and use the generic target_stat64 instead. [*] https://github.com/torvalds/linux/commit/6103ec56c65c3#diff-5f59b07b38273b7d6a74193bc81a8cd18928c688276eae20cb10c569de3253ee Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Tested-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20211116210919.2823206-1-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-11-29linux-user: implement more loop ioctlsAndreas Schwab
LOOP_CONFIGURE is now used by losetup, and it cannot cope with ENOSYS. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmtug4mbfx.fsf_-_@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-11-21linux-user: Fix member types of target_dirent64Richard Henderson
The host uint64_t (etc) does not have the correct alignment constraint as the guest: use abi_* types. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211114103539.298686-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-11-21linux-user: Always use flexible arrays for dirent d_nameRichard Henderson
We currently use a flexible array member for target_dirent, but use incorrectly fixed length arrays for target_dirent64, linux_dirent and linux_dirent64. This requires that we adjust the definition of the VFAT READDIR ioctls which hard-code the 256 namelen size into the ioctl constant. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211114103539.298686-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user: Extract target errno to 'target_errno_defs.h'Philippe Mathieu-Daudé
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 <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-4-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-18linux-user/alpha: Share code for TARGET_NR_sigactionRichard Henderson
There's no longer a difference between the alpha code and the generic code. There is a type difference in target_old_sigaction.sa_flags, which can be resolved with a very much smaller ifdef, which allows us to finish sharing the target_sigaction definition. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-18linux-user/alpha: Define TARGET_ARCH_HAS_KA_RESTORERRichard Henderson
This means that we can share the TARGET_NR_rt_sigaction code, and the target_rt_sigaction structure is unused. Untangling the ifdefs so that target_sigaction can be shared will wait until the next patch. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-18linux-user: Pass ka_restorer to do_sigactionRichard Henderson
The value of ka_restorer needs to be saved in sigact_table. At the moment, the attempt to save it in do_syscall is improperly clobbering user memory. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-4-richard.henderson@linaro.org> [lv: remove tab] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-18linux-user/alpha: Rename the sigaction restorer fieldRichard Henderson
Use ka_restorer, in line with TARGET_ARCH_HAS_KA_RESTORER vs TARGET_ARCH_HAS_SA_RESTORER, since Alpha passes this field as a syscall argument. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-03-09Remove deprecated target tilegxThomas Huth
TILE-Gx was only implemented in linux-user mode, but support for this CPU was removed from the upstream Linux kernel in 2018, and it has also been dropped from glibc, so there is no new Linux development taking place with this architecture. For running the old binaries, users can simply use older versions of QEMU. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210224183952.80463-1-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-02-18Hexagon (linux-user/hexagon) Linux user emulationTaylor Simpson
Implementation of Linux user emulation for Hexagon Some common files modified in addition to new files in linux-user/hexagon Acked-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1612763186-18161-31-git-send-email-tsimpson@quicinc.com> [rth: Fix termbits.h on review by Laurent] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-16linux-user/aarch64: Implement PROT_MTERichard Henderson
Remember the PROT_MTE bit as PAGE_MTE/PAGE_TARGET_2. Otherwise this does not yet have effect. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210212184902.1251044-25-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-01-20linux-user: Support F_ADD_SEALS and F_GET_SEALS fcntlsShu-Chun Weng
Also reorder blocks so that they are all in the same order everywhere. Signed-off-by: Shu-Chun Weng <scw@google.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20201218193213.3566856-2-scw@google.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-12-18linux-user: Add most IFTUN ioctlsShu-Chun Weng
The three options handling `struct sock_fprog` (TUNATTACHFILTER, TUNDETACHFILTER, and TUNGETFILTER) are not implemented. Linux kernel keeps a user space pointer in them which we cannot correctly handle. Signed-off-by: Josh Kunz <jkz@google.com> Signed-off-by: Shu-Chun Weng <scw@google.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200929014801.655524-1-scw@google.com> [lv: use 0 size in unlock_user()] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-12-13configure / meson: Move check for linux/btrfs.h to meson.buildThomas Huth
This check can be done in a much shorter way in meson.build. And while we're at it, rename the #define to HAVE_BTRFS_H to match the other HAVE_someheader_H symbols that we already have. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201118171052.308191-7-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-10-27linux-user: Set PAGE_TARGET_1 for TARGET_PROT_BTIRichard Henderson
Transform the prot bit to a qemu internal page bit, and save it in the page tables. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20201021173749.111103-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-06linux-user: Protect btrfs ioctl target definitionsFilip Bozuta
Target definitions of btrfs ioctls in 'syscall_defs.h' use the value BTRFS_IOCTL_MAGIC that is defined header 'btrfs.h'. This header is not available in kernel versions before 3.9. For that reason, these target ioctl definitions should be enwrapped in an #ifdef directive to check whether the 'btrfs.h' header is available as to not cause build errors on older Linux systems. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200905163802.2666-1-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-03linux-user: Add support for btrfs ioctls used to scrub a filesystemFilip Bozuta
This patch implements functionality for following ioctls: BTRFS_IOC_SCRUB - Starting a btrfs filesystem scrub Start a btrfs filesystem scrub. The third ioctls argument is a pointer to a following type: struct btrfs_ioctl_scrub_args { __u64 devid; /* in */ __u64 start; /* in */ __u64 end; /* in */ __u64 flags; /* in */ struct btrfs_scrub_progress progress; /* out */ /* pad to 1k */ __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8]; }; Before calling this ioctl, field 'devid' should be filled with value that represents the device id of the btrfs filesystem for which the scrub is to be started. BTRFS_IOC_SCRUB_CANCEL - Canceling scrub of a btrfs filesystem Cancel a btrfs filesystem scrub if it is running. The third ioctls argument is ignored. BTRFS_IOC_SCRUB_PROGRESS - Getting status of a running scrub Read the status of a running btrfs filesystem scrub. The third ioctls argument is a pointer to the above mentioned 'struct btrfs_ioctl_scrub_args'. Similarly as with 'BTRFS_IOC_SCRUB', the 'devid' field should be filled with value that represents the id of the btrfs device for which the scrub has started. The status of a running scrub is returned in the field 'progress' which is of type 'struct btrfs_scrub_progress' and its definition can be found at: https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/btrfs.h#L150 Implementation nots: Ioctls in this patch use type 'struct btrfs_ioctl_scrub_args' as their third argument. That is the reason why an aproppriate thunk type definition is added in file 'syscall_types.h'. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Tested-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20200823195014.116226-9-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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