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2024-04-09linux-user: Preserve unswapped siginfo_t for straceRichard Henderson
Passing the tswapped structure to strace means that our internal si_type is also gone, which then aborts in print_siginfo. Fixes: 4d6d8a05a0a ("linux-user: Move tswap_siginfo out of target code") Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-09linux-user: replace calloc() with g_new0()Nguyen Dinh Phi
Use glib allocation as recommended by the coding convention Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com> Message-Id: <20240317171747.1642207-1-phind.uet@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-09linux-user: Fix waitid return of siginfo_t and rusageRichard Henderson
The copy back to siginfo_t should be conditional only on arg3, not the specific values that might have been written. The copy back to rusage was missing entirely. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2262 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Alex Fan <alex.fan.q@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26linux-user: Fix shmat(NULL) for h != gIlya Leoshkevich
In the h != g && shmaddr == NULL && !reserved_va case, target_shmat() incorrectly mmap()s the initial anonymous range with MAP_FIXED_NOREPLACE, even though the earlier mmap_find_vma() has already reserved the respective address range. Fix by using MAP_FIXED when "mapped", which is set after mmap_find_vma(), is true. Fixes: 78bc8ed9a8f0 ("linux-user: Rewrite target_shmat") Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240325192436.561154-4-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-26linux-user: Fix shmat() straceIlya Leoshkevich
The indices of arguments passed to print_shmat() are all off-by-1, because arg1 is the ipc() command. Fix them. New output for linux-shmat-maps test: 3501769 shmat(4784214,0x0000000000800000,SHM_RND) = 0 Fixes: 9f7c97324c27 ("linux-user: Add strace for shmat") Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240325192436.561154-3-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-26linux-user: Fix semctl() straceIlya Leoshkevich
The indices of arguments used with semctl() are all off-by-1, because arg1 is the ipc() command. Fix them. While at it, reuse print_semctl(). New output (for a small test program): 3540333 semctl(999,888,SEM_INFO,0x00007fe5051ee9a0) = -1 errno=14 (Bad address) Fixes: 7ccfb2eb5f9d ("Fix warnings that would be caused by gcc flag -Wwrite-strings") Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240325192436.561154-2-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-13Merge tag 'pull-maintainer-final-130324-1' of ↵Peter Maydell
https://gitlab.com/stsquad/qemu into staging final updates for 9.0 (testing, gdbstub): - fix the over rebuilding of test VMs - support Xfer:siginfo:read in gdbstub - fix double close() in gdbstub # -----BEGIN PGP SIGNATURE----- # # iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAmXxkb0ACgkQ+9DbCVqe # KkSw9wf+K+3kJYaZ2unEFku3Y6f4Z9XkrZCsFQFVNIJQgpYVc6peQyLUB1pZwzZc # yoQhmTIgej16iRZc7gEcJhFl2zlX2vulE/m+wiaR0Chv3E2r510AGn4aWl+GLB9+ # /WduHaz1NobPW4JWaarxespa84Re8QZQgqkHX4nwYd++FW63E4uxydL4F1nmSNca # eTA6RwS48h4wqPzHBX72hYTRUnYrDUSSGCGUDzK3NHumuPi+AQ77GLRMO0MTYFfy # hWriapogCmghY+Xtn++eUIwDyh1CCnUT6Ntf5Qj06bZ+f6eaTwINM8QWhj9mxYX+ # 5/F5Q4JJDqRPYw/hF4wYXRsiZxTYFw== # =BOWW # -----END PGP SIGNATURE----- # gpg: Signature made Wed 13 Mar 2024 11:45:01 GMT # gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44 # gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full] # Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44 * tag 'pull-maintainer-final-130324-1' of https://gitlab.com/stsquad/qemu: gdbstub: Fix double close() of the follow-fork-mode socket tests/tcg: Add multiarch test for Xfer:siginfo:read stub gdbstub: Add Xfer:siginfo:read stub gdbstub: Save target's siginfo linux-user: Move tswap_siginfo out of target code gdbstub: Rename back gdb_handlesig tests/vm: ensure we build everything by default Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-13gdbstub: Save target's siginfoGustavo Romero
Save target's siginfo into gdbserver_state so it can be used later, for example, in any stub that requires the target's si_signo and si_code. This change affects only linux-user mode. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240309030901.1726211-4-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-13linux-user: Move tswap_siginfo out of target codeGustavo Romero
Move tswap_siginfo from target code to handle_pending_signal. This will allow some cleanups and having the siginfo ready to be used in gdbstub. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240309030901.1726211-3-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2024-03-13gdbstub: Rename back gdb_handlesigGustavo Romero
Rename gdb_handlesig_reason back to gdb_handlesig. There is no need to add a wrapper for gdb_handlesig and rename it when a new parameter is added. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240309030901.1726211-2-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2024-03-12Merge tag 'pull-tcg-20240312' of https://gitlab.com/rth7680/qemu into stagingPeter Maydell
linux-user: Add FIFREEZE and FITHAW ioctls linux-user: Implement PR_*_{CHILD_SUBREAPER,SPECULATION_CTRL,TID_ADDRESS} linux-user/elfload: Fixes for two Coverity CIDs tcg/aarch64: Fixes for two TCG_COND_TST{EQ,NE} bugs # -----BEGIN PGP SIGNATURE----- # # iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmXwoYwdHHJpY2hhcmQu # aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV99KwgAlUxbn0dPTXKmCkIE # X+FAUllPYCZJwpTCa1h3P8taczLLeAocI4/iJxUudBE77I0HY7jv4FRnWrrdHr/V # rQXjNkpQUByWr0Y4MB6Gl1+AKYo2SNqVHNP5AI4DdgDeSASXhP1aSlT5h4V4gdeX # 1OwSnTQfONInJaoOQ7QQRf3JShKSYZSO7/sjMlJrubgGJBP8ivPxyPKiGbX3zUBS # 6fI/ICLewC/g1fLPKaMHmqdrPK30ubPSGtnKdcz0q5NsT3hy6QWgtrQs5WAf3Liz # 9WKGbq/y+qaFyLHat2tBpDnzT1Jso1SlIMkxL8kau3g6Pvk91E/pZjF5K3JOG8By # PR4uQA== # =FckT # -----END PGP SIGNATURE----- # gpg: Signature made Tue 12 Mar 2024 18:40:12 GMT # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full] # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * tag 'pull-tcg-20240312' of https://gitlab.com/rth7680/qemu: tcg/aarch64: Fix tcg_out_brcond for test comparisons tcg/aarch64: Fix tcg_out_cmp for test comparisons linux-user/elfload: Fully initialize struct target_elf_prpsinfo linux-user/elfload: Don't close an unopened file descriptor linux-user: Implement PR_GET_TID_ADDRESS linux-user: Implement PR_{GET,SET}_SPECULATION_CTRL linux-user: Implement PR_{GET,SET}_CHILD_SUBREAPER linux-user: Add FIFREEZE and FITHAW ioctls Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-12linux-user/elfload: Fully initialize struct target_elf_prpsinfoRichard Henderson
Fixes Coverity CID: 1534962 Fixes: 243c4706625 ("linux-user/elfload: Write corefile elf header in one block") Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-12linux-user/elfload: Don't close an unopened file descriptorRichard Henderson
Fixes Coverity CID: 1534964 Fixes: 106f8da664 ("linux-user/elfload: Open core file after vma_init") Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-12linux-user: Implement PR_GET_TID_ADDRESSRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-12linux-user: Implement PR_{GET,SET}_SPECULATION_CTRLRichard Henderson
Both of these only pass and return integral values. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-12linux-user: Implement PR_{GET,SET}_CHILD_SUBREAPERRichard Henderson
The "set" prctl passes through integral values. The "get" prctl returns the value into a pointer. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1929 Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@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>
2024-03-12user: Prefer fast cpu_env() over slower CPU QOM cast macroPhilippe Mathieu-Daudé
Mechanical patch produced running the command documented in scripts/coccinelle/cpu_env.cocci_template header. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-ID: <20240129164514.73104-30-philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-12bulk: Call in place single use cpu_env()Philippe Mathieu-Daudé
Avoid CPUArchState local variable when cpu_env() is used once. Mechanical patch using the following Coccinelle spatch script: @@ type CPUArchState; identifier env; expression cs; @@ { - CPUArchState *env = cpu_env(cs); ... when != env - env + cpu_env(cs) ... when != env } Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240129164514.73104-5-philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-08linux-user/riscv: Add Ztso extension to hwprobeChristoph Müllner
This patch exposes Ztso via hwprobe in QEMU's user space emulator. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20240207122256.902627-3-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-03-08linux-user/riscv: Sync hwprobe keys with LinuxChristoph Müllner
Upstream Linux recently added many additional keys to the hwprobe API. This patch adds support for all of them with the exception of Ztso, which is currently not supported in QEMU. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20240207115926.887816-3-christoph.muellner@vrull.eu> [ Changes by AF: - Fixup whitespace ] Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-03-08linux-user/riscv: Add Zicboz extensions to hwprobeChristoph Müllner
Upstream Linux recently added RISC-V Zicboz support to the hwprobe API. This patch introduces this for QEMU's user space emulator. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20240207115926.887816-2-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-03-06gdbstub: Call gdbserver_fork() both in parent and in childIlya Leoshkevich
The upcoming follow-fork-mode child support requires post-fork message exchange between the parent and the child. Prepare gdbserver_fork() for this purpose. Rename it to gdbserver_fork_end() to better reflect its purpose. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240219141628.246823-8-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-9-alex.bennee@linaro.org>
2024-03-06{linux,bsd}-user: Pass pid to gdbserver_fork()Ilya Leoshkevich
The upcoming follow-fork-mode child support requires knowing the child pid. Pass it down. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240219141628.246823-7-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-8-alex.bennee@linaro.org>
2024-03-06{linux,bsd}-user: Pass pid to fork_end()Ilya Leoshkevich
The upcoming follow-fork-mode child support requires knowing the child pid. Pass it down. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240219141628.246823-6-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-7-alex.bennee@linaro.org>
2024-03-06gdbstub: Introduce gdbserver_fork_start()Ilya Leoshkevich
The upcoming follow-fork-mode child support requires knowing when fork() is about to happen in order to initialize its state. Add a hook for that. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240219141628.246823-5-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-6-alex.bennee@linaro.org>
2024-03-06{linux,bsd}-user: Update ts_tid after fork()Ilya Leoshkevich
Currently ts_tid contains the parent tid after fork(), which is not correct. So far it has not affected anything, but the upcoming follow-fork-mode child support relies on the correct value, so fix it. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20240219141628.246823-4-iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-5-alex.bennee@linaro.org>
2024-03-06{linux,bsd}-user: Introduce get_task_state()Ilya Leoshkevich
A CPU's TaskState is stored in the CPUState's void *opaque field, accessing which is somewhat awkward due to having to use a cast. Introduce a wrapper and use it everywhere. Suggested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240219141628.246823-3-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-4-alex.bennee@linaro.org>
2024-03-01linux-user: Rewrite target_shmatRichard Henderson
Handle combined host and guest alignment requirements. Handle host and guest page size differences. Handle SHM_EXEC. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/115 Tested-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-01linux-user: Add strace for shmatRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-29linux-user/loongarch64: Remove TARGET_FORCE_SHMLBARichard Henderson
The kernel abi was changed with commit d23b77953f5a4fbf94c05157b186aac2a247ae32 Author: Huacai Chen <chenhuacai@kernel.org> Date: Wed Jan 17 12:43:08 2024 +0800 LoongArch: Change SHMLBA from SZ_64K to PAGE_SIZE during the v6.8 cycle. Reviewed-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-29linux-user/x86_64: Handle the vsyscall page in open_self_maps_{2,4}Richard Henderson
This is the only case in which we expect to have no host memory backing for a guest memory page, because in general linux user processes cannot map any pages in the top half of the 64-bit address space. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2170 Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-29linux-user: Remove pgb_dynamic alignment assertionRichard Henderson
The assertion was never correct, because the alignment is a composite of the image alignment and SHMLBA. Even if the image alignment didn't match the image address, an assertion would not be correct -- more appropriate would be an error message about an ill formed image. But the image cannot be held to SHMLBA under any circumstances. Fixes: ee94743034b ("linux-user: completely re-write init_guest_space") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2157 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reported-by: Alexey Sheplyakov <asheplyakov@yandex.ru> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-02-29linux-user: Bound mmap_min_addr by host page sizeRichard Henderson
Bizzarely, it is possible to set /proc/sys/vm/mmap_min_addr to a value below the host page size. Fix that. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-32-richard.henderson@linaro.org>
2024-02-29linux-user: Allow TARGET_PAGE_BITS_VARYRichard Henderson
If set, match the host and guest page sizes. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-30-richard.henderson@linaro.org>
2024-02-29*-user: Deprecate and disable -p pagesizeRichard Henderson
This option controls the host page size. From the mis-usage in our own testsuite, this is easily confused with guest page size. The only thing that occurs when changing the host page size is that stuff breaks, because one cannot actually change the host page size. Therefore reject all but the no-op setting as part of the deprecation process. Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-27-richard.henderson@linaro.org>
2024-02-29linux-user: Split out mmap_h_gt_gRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-24-richard.henderson@linaro.org>
2024-02-29linux-user: Split out mmap_h_lt_gRichard Henderson
Work much harder to get alignment and mapping beyond the end of the file correct. Both of which are excercised by our test-mmap for alpha (8k pages) on any 4k page host. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-23-richard.henderson@linaro.org>
2024-02-29linux-user: Split out mmap_h_eq_gRichard Henderson
Move the MAX_FIXED_NOREPLACE check for reserved_va earlier. Move the computation of host_prot earlier. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-22-richard.henderson@linaro.org>
2024-02-29linux-user: Use do_munmap for target_mmap failureRichard Henderson
For the cases for which the host mmap succeeds, but does not yield the desired address, use do_munmap to restore the reserved_va memory reservation. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-29linux-user: Split out do_munmapRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-29linux-user: Do early mmap placement only for reserved_vaRichard Henderson
For reserved_va, place all non-fixed maps then proceed as for MAP_FIXED. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-21-richard.henderson@linaro.org>
2024-02-29linux-user: Split out mmap_endRichard Henderson
Use a subroutine instead of a goto within target_mmap__locked. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-20-richard.henderson@linaro.org>
2024-02-29linux-user: Fix sub-host-page mmapRichard Henderson
We cannot skip over the_end1 to the_end, because we fail to record the validity of the guest page with the interval tree. Remove "the_end" and rename "the_end1" to "the_end". Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-19-richard.henderson@linaro.org>
2024-02-29linux-user: Move some mmap checks outside the lockRichard Henderson
Basic validation of operands does not require the lock. Hoist them from target_mmap__locked back into target_mmap. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-18-richard.henderson@linaro.org>
2024-02-29linux-user: Split out target_mmap__lockedRichard Henderson
All "goto fail" may be transformed to "return -1". Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-17-richard.henderson@linaro.org>
2024-02-29linux-user: Remove qemu_host_page_size from mainRichard Henderson
Use qemu_real_host_page_size() instead. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-16-richard.henderson@linaro.org>
2024-02-29linux-user: Remove HOST_PAGE_ALIGN from mmap.cRichard Henderson
This removes a hidden use of qemu_host_page_size, using instead the existing host_page_size local within each function. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-11-richard.henderson@linaro.org>
2024-02-29linux-user: Remove REAL_HOST_PAGE_ALIGN from mmap.cRichard Henderson
We already have qemu_real_host_page_size() in a local variable. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-10-richard.henderson@linaro.org>
2024-02-29linux-user: Remove qemu_host_page_{size, mask} from mmap.cRichard Henderson
Use qemu_real_host_page_size instead. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-9-richard.henderson@linaro.org>
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-07 22:17:35 +0000