summary refs log tree commit diff stats
path: root/linux-user/mmap.c (follow)
Commit message (Collapse)AuthorAgeFilesLines
* linux-user: Split out begin_parallel_contextRichard Henderson2025-09-241-11/+2
| | | | | | | | Move the test/flush/set block to a new function. Use tb_flush__exclusive_or_serial while we're at it. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user/mmap.c: fix "of of" typo in commentMichael Tokarev2025-05-091-1/+1
| | | | | Suggested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* include/exec: Split out mmap-lock.hRichard Henderson2025-04-231-0/+1
| | | | | | | | | Split out mmap_lock, et al from page-protection.h to a new header. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Only include 'exec/tb-flush.h' header when necessaryPhilippe Mathieu-Daudé2025-03-091-0/+1
| | | | | | | | | | | Very few source files require to access "exec/tb-flush.h" declarations, and except a pair, they all include it explicitly. No need to overload the generic "user-internals.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Message-Id: <20250102182521.65428-2-philmd@linaro.org>
* accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h'Philippe Mathieu-Daudé2024-12-201-0/+1
| | | | | | | | | | | The TranslationBlock flags are defined in 'exec/translation-block.h'. tcg_cflags_has/set() use them, it is more logical to declare them in the same place. Move them there too. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20241212144430.66224-2-philmd@linaro.org>
* accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (1/4)Philippe Mathieu-Daudé2024-12-201-0/+1
| | | | | | | | | | Move declarations related to page protection under user emulation from "exec/cpu-all.h" to "user/page-protection.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20241212185341.2857-12-philmd@linaro.org>
* linux-user: Handle short reads in mmap_h_gt_gRichard Henderson2024-08-211-6/+38
| | | | | | | | | | | | | | | | In particular, if an image has a large bss, we can hit EOF before reading all host_len bytes of the mapping. Create a helper, mmap_pread to handle the job for both the larger block in mmap_h_gt_g itself, as well as the smaller block in mmap_frag. Cc: qemu-stable@nongnu.org Fixes: eb5027ac618 ("linux-user: Split out mmap_h_gt_g") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2504 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240820050848.165253-2-richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* linux-user: Preserve NULL hit in target_mmap subroutinesRichard Henderson2024-08-151-3/+15
| | | | | | | | Do not pass guest_base to the host mmap instead of zero hint. Cc: qemu-stable@nongnu.org Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2353 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Access tcg_cflags with getter / setterPhilippe Mathieu-Daudé2024-05-061-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Access the CPUState::tcg_cflags via tcg_cflags_has() and tcg_cflags_set() helpers. Mechanical change using the following Coccinelle spatch script: @@ expression cpu; expression flags; @@ - cpu->tcg_cflags & flags + tcg_cflags_has(cpu, flags) @@ expression cpu; expression flags; @@ - (tcg_cflags_has(cpu, flags)) + tcg_cflags_has(cpu, flags) @@ expression cpu; expression flags; @@ - cpu->tcg_cflags |= flags; + tcg_cflags_set(cpu, flags); Then manually moving the declarations, and adding both tcg_cflags_has() and tcg_cflags_set() definitions. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240427155714.53669-15-philmd@linaro.org>
* exec/cpu: Extract page-protection definitions to page-protection.hPhilippe Mathieu-Daudé2024-05-061-0/+1
| | | | | | | | | | | | | | | | Extract page-protection definitions from "exec/cpu-all.h" to "exec/page-protection.h". The list of files requiring the new header was generated using: $ git grep -wE \ 'PAGE_(READ|WRITE|EXEC|RWX|VALID|ANON|RESERVED|TARGET_.|PASSTHROUGH)' Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240427155714.53669-3-philmd@linaro.org>
* exec/cpu: Rename PAGE_BITS macro to PAGE_RWXBALATON Zoltan2024-05-061-1/+1
| | | | | | | | | | | | This macro can be used to abbreviate PAGE_READ | PAGE_WRITE | PAGE_EXEC for which PAGE_RWX is a better name and renaming it also shows it is not related to TARGET_PAGE_BITS. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240505121008.44A0D4E602D@zero.eik.bme.hu> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* linux-user: Fix shmat(NULL) for h != gIlya Leoshkevich2024-03-261-1/+1
| | | | | | | | | | | | | | | | 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>
* linux-user: Rewrite target_shmatRichard Henderson2024-03-011-33/+133
| | | | | | | | | | 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>
* linux-user: Split out mmap_h_gt_gRichard Henderson2024-02-291-149/+139
| | | | | | | 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>
* linux-user: Split out mmap_h_lt_gRichard Henderson2024-02-291-31/+153
| | | | | | | | | | | 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>
* linux-user: Split out mmap_h_eq_gRichard Henderson2024-02-291-13/+55
| | | | | | | | | | 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>
* linux-user: Use do_munmap for target_mmap failureRichard Henderson2024-02-291-3/+3
| | | | | | | | | 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>
* linux-user: Split out do_munmapRichard Henderson2024-02-291-7/+16
| | | | | Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Do early mmap placement only for reserved_vaRichard Henderson2024-02-291-5/+7
| | | | | | | | | | | 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>
* linux-user: Split out mmap_endRichard Henderson2024-02-291-30/+41
| | | | | | | | | | 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>
* linux-user: Fix sub-host-page mmapRichard Henderson2024-02-291-3/+2
| | | | | | | | | | | | 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>
* linux-user: Move some mmap checks outside the lockRichard Henderson2024-02-291-54/+53
| | | | | | | | | | | 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>
* linux-user: Split out target_mmap__lockedRichard Henderson2024-02-291-27/+35
| | | | | | | | | | | 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>
* linux-user: Remove HOST_PAGE_ALIGN from mmap.cRichard Henderson2024-02-291-7/+6
| | | | | | | | | | | 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>
* linux-user: Remove REAL_HOST_PAGE_ALIGN from mmap.cRichard Henderson2024-02-291-1/+1
| | | | | | | | | | 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>
* linux-user: Remove qemu_host_page_{size, mask} from mmap.cRichard Henderson2024-02-291-33/+33
| | | | | | | | | | 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>
* target/arm: Move feature test functions to their own headerPeter Maydell2023-10-271-0/+4
| | | | | | | | | | | | The feature test functions isar_feature_*() now take up nearly a thousand lines in target/arm/cpu.h. This header file is included by a lot of source files, most of which don't need these functions. Move the feature test functions to their own header file. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20231024163510.2972081-2-peter.maydell@linaro.org
* linux-user: Propagate failure in mmap_reserve_or_unmap back to target_munmapRichard Henderson2023-10-181-13/+17
| | | | | | | | Do not assert success, but return any failure received. Additionally, fix the method of earlier error return in target_munmap. Reported-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user/mmap.c: clean up local variable shadowingLaurent Vivier2023-10-061-3/+3
| | | | | | | | | | | | | | | | | Fix following warnings: .../linux-user/mmap.c: In function 'target_mremap': .../linux-user/mmap.c:913:13: warning: declaration of 'prot' shadows a previous local [-Wshadow=compatible-local] 913 | int prot = 0; | ^~~~ ../../../Projects/qemu/linux-user/mmap.c:871:9: note: shadowed declaration is here 871 | int prot; | ^~~~ Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-ID: <20230925151029.461358-3-laurent@vivier.eu> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* linux-user: Track shm regions with an interval treeRichard Henderson2023-09-011-28/+53
| | | | | | | | | | Remove the fixed size shm_regions[] array. Remove references when other mappings completely remove or replace a region. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Fix shmdtRichard Henderson2023-09-011-3/+14
| | | | | | | | | | If the shm region is not mapped at shmaddr, EINVAL. Do not unmap the region until the syscall succeeds. Use mmap_reserve_or_unmap to preserve reserved_va semantics. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Use WITH_MMAP_LOCK_GUARD in target_{shmat,shmdt}Richard Henderson2023-09-011-52/+46
| | | | | | | | Move the CF_PARALLEL setting outside of the mmap lock. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Move shmat and shmdt implementations to mmap.cRichard Henderson2023-09-011-0/+138
| | | | | | | | | | Rename from do_* to target_*. Fix some minor checkpatch errors. Tested-by: Helge Deller <deller@gmx.de> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.hRichard Henderson2023-08-081-0/+1
| | | | | | | | | Copy each guest kernel's default value, then bound it against reserved_va or the host address space. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Adjust task_unmapped_base for reserved_vaRichard Henderson2023-08-081-15/+3
| | | | | | | | | Ensure that the chosen values for mmap_next_start and task_unmapped_base are within the guest address space. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Remove last_brkRichard Henderson2023-08-061-2/+0
| | | | | | | | This variable is unused. Reviewed-by: Helge Deller <deller@gmx.de> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Fix MAP_FIXED_NOREPLACE on old kernelsAkihiko Odaki2023-08-061-5/+17
| | | | | | | | | | | | | | | | The man page states: > Note that older kernels which do not recognize the MAP_FIXED_NOREPLACE > flag will typically (upon detecting a collision with a preexisting > mapping) fall back to a “non-MAP_FIXED” type of behavior: they will > return an address that is different from the requested address. > Therefore, backward-compatible software should check the returned > address against the requested address. https://man7.org/linux/man-pages/man2/mmap.2.html Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-Id: <20230802071754.14876-3-akihiko.odaki@daynix.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Unset MAP_FIXED_NOREPLACE for hostAkihiko Odaki2023-08-061-5/+20
| | | | | | | | | | | | Passing MAP_FIXED_NOREPLACE to host will fail for reserved_va because the address space is reserved with mmap. Replace it with MAP_FIXED in that case. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-Id: <20230802071754.14876-2-akihiko.odaki@daynix.com> [rth: Expand inline commentary.] Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* include/exec: Add WITH_MMAP_LOCK_GUARDRichard Henderson2023-07-231-0/+1
| | | | | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Simplify target_madviseRichard Henderson2023-07-151-15/+4
| | | | | | | | | The trivial length 0 check can be moved up, simplifying some of the other cases. The end < start test is handled by guest_range_valid_untagged. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-27-richard.henderson@linaro.org>
* linux-user: Remove can_passthrough_madviseRichard Henderson2023-07-151-21/+3
| | | | | | | | Use page_check_range instead, which uses the interval tree instead of checking each page individually. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-26-richard.henderson@linaro.org>
* linux-user: Simplify target_munmapRichard Henderson2023-07-151-43/+4
| | | | | | | | | | All of the guest to host page adjustment is handled by mmap_reserve_or_unmap; there is no need to duplicate that. There are no failure modes for munmap after alignment and guest address range have been validated. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-23-richard.henderson@linaro.org>
* linux-user: Rename mmap_reserve to mmap_reserve_or_unmapRichard Henderson2023-07-151-13/+16
| | | | | | | | If !reserved_va, munmap instead and assert success. Update all callers. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-22-richard.henderson@linaro.org>
* linux-user: Rewrite mmap_reserveRichard Henderson2023-07-151-26/+42
| | | | | | | | Use 'last' variables instead of 'end' variables; be careful about avoiding overflow. Assert that the mmap succeeded. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-21-richard.henderson@linaro.org>
* linux-user: Use 'last' instead of 'end' in target_mmapRichard Henderson2023-07-151-22/+23
| | | | | | | | | Complete the transition within the mmap functions to a formulation that does not overflow at the end of the address space. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230707204054.8792-20-richard.henderson@linaro.org>
* linux-user: Use page_find_range_empty for mmap_find_vma_reservedRichard Henderson2023-07-151-46/+6
| | | | | | | | Use the interval tree to find empty space, rather than probing each page in turn. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-19-richard.henderson@linaro.org>
* linux-user: Rewrite mmap_fragRichard Henderson2023-07-151-59/+60
| | | | | | | | | | Use 'last' variables instead of 'end' variables. Always zero MAP_ANONYMOUS fragments, which we previously failed to do if they were not writable; early exit in case we allocate a new page from the kernel, known zeros. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-16-richard.henderson@linaro.org>
* linux-user: Rewrite target_mprotectRichard Henderson2023-07-151-38/+66
| | | | | | | | | | Use 'last' variables instead of 'end' variables. When host page size > guest page size, detect when adjacent host pages have the same protection and merge that expanded host range into fewer syscalls. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-15-richard.henderson@linaro.org>
* linux-user: Widen target_mmap offset argument to off_tRichard Henderson2023-07-151-6/+8
| | | | | | | | | | We build with _FILE_OFFSET_BITS=64, so off_t = off64_t = uint64_t. With an extra cast, this fixes emulation of mmap2, which could overflow the computation of the full value of offset. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-14-richard.henderson@linaro.org>
* linux-user: Split out target_to_host_protRichard Henderson2023-07-151-34/+44
| | | | | | | | | | Split out from validate_prot_to_pageflags, as there is not one single host_prot for the entire range. We need to adjust prot for every host page that overlaps multiple guest pages. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-13-richard.henderson@linaro.org>