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| * Changed malloc to g_malloc, free to g_free in ui/shader.cMd Haris Iqbal2016-05-121-4/+4
| | | | | | | | | | | | Signed-off-by: Md Haris Iqbal <haris.phnx@gmail.com> Message-id: 1459862499-4768-1-git-send-email-haris.phnx@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * spice/gl: add & use qemu_spice_gl_monitor_configGerd Hoffmann2016-05-122-0/+31
| | | | | | | | | | | | Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
| * ui/gtk: copy to clipboard supportMichael S. Tsirkin2016-05-121-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | This adds a menu item to copy current selection to clipboard. Seems handy for copying out guest error messages. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 1460924740-24513-1-git-send-email-mst@redhat.com [ kraxel: fix build with CONFIG_VTE=n ] [ kraxel: fix build with CONFIG_VTE=n, now for real ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * ui: gtk: Fix some deprecation warningsCole Robinson2016-05-111-7/+13
| | | | | | | | | | | | | | | | | | | | All device manager APIs are deprecated now. Much of our usage is just to get the current pointer, so centralize that logic and use the new seat APIs Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: d6dec24220a4e1449a0172119c10c48e145c0f6f.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * ui: gtk: Fix a runtime warning on vte >= 0.37Cole Robinson2016-05-111-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | inner-border was dropped in vte API 2.91, in favor of the standard padding style Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 60a6cdc337d611d902f53907e66a8f37ea374d65.1462557436.git.crobinso@redhat.com [ kraxel: Fix warning with old vte version. ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * configure: support vte-2.91Cole Robinson2016-05-111-6/+11
| | | | | | | | | | | | | | | | | | | | vte >= 0.37 expores API version 2.91, which is where all the active development is. qemu builds and runs fine with that version, so use it if it's available. Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: b4f0375647f7b368d3dbd3834aee58cb0253566a.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * configure: report SDL versionCole Robinson2016-05-111-4/+4
| | | | | | | | | | | | Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 98e4a3b98dc824bfaff96db43b172272c780c15f.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * configure: report GTK versionCole Robinson2016-05-111-1/+2
| | | | | | | | | | | | Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 4c464e20d69fdcf21927ceed31a8d749b4af0c49.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * configure: add echo_version helperCole Robinson2016-05-111-10/+8
| | | | | | | | | | | | | | | | | | Simplifies printing library versions, dependent on if the library was even found Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 3c9ab16123e06bb4109771ef6ee8acd82d449ba0.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * configure: error on unknown --with-sdlabi valueCole Robinson2016-05-111-1/+3
| | | | | | | | | | | | | | | | | | | | I accidentally tried --with-sdlabi="1.0", and it failed much later in a weird way. Instead, throw an error if the value isn't in our whitelist. Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 60e4822e17697d257a914df03bdb9fff4b4c0490.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * configure: build SDL if only SDL2 availableCole Robinson2016-05-111-1/+11
| | | | | | | | | | | | | | | | | | | | Right now if SDL2 is installed but not SDL1, default configure will entirely disable SDL. Check upfront for SDL2 using pkg-config, but still prefer SDL1 if both versions are installed. Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: c9e570b5964d128a3595efe3170129a3da459776.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * ui: sdl2: Release grab before opening console windowCole Robinson2016-05-111-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sdl 2.0.4 currently has a bug which causes our UI shortcuts to fire rapidly in succession: https://bugzilla.libsdl.org/show_bug.cgi?id=3287 It's a toss up whether ctrl+alt+f or ctrl+alt+2 will fire an odd or even number of times, thus determining whether the action succeeds or fails. Opening monitor/serial windows is doubly broken, since it will often lock the UI trying to grab the pointer: 0x00007fffef3720a5 in SDL_Delay_REAL () at /lib64/libSDL2-2.0.so.0 0x00007fffef3688ba in X11_SetWindowGrab () at /lib64/libSDL2-2.0.so.0 0x00007fffef2f2da7 in SDL_SendWindowEvent () at /lib64/libSDL2-2.0.so.0 0x00007fffef2f080b in SDL_SetKeyboardFocus () at /lib64/libSDL2-2.0.so.0 0x00007fffef35d784 in X11_DispatchFocusIn.isra.8 () at /lib64/libSDL2-2.0.so.0 0x00007fffef35dbce in X11_DispatchEvent () at /lib64/libSDL2-2.0.so.0 0x00007fffef35ee4a in X11_PumpEvents () at /lib64/libSDL2-2.0.so.0 0x00007fffef2eea6a in SDL_PumpEvents_REAL () at /lib64/libSDL2-2.0.so.0 0x00007fffef2eeab5 in SDL_WaitEventTimeout_REAL () at /lib64/libSDL2-2.0.so.0 0x000055555597eed0 in sdl2_poll_events (scon=0x55555876f928) at ui/sdl2.c:593 We can work around that hang by ungrabbing the pointer before launching a new window. This roughly matches what our sdl1 code does Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 31c9ab6540b031f7a614c59edcecea9877685612.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| * ui: gtk: fix crash when terminal inner-border is NULLCole Robinson2016-05-111-4/+6
| | | | | | | | | | | | | | | | | | | | | | VTE terminal inner-border can be NULL. The vte-0.36 (API 2.90) code checks for the condition too so I assume it's not just a bug Fixes a crash on Fedora 24 with gtk 3.20 Signed-off-by: Cole Robinson <crobinso@redhat.com> Message-id: 2b2e85d403e8760ea53afd735a170500d5c17716.1462557436.git.crobinso@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* | Merge remote-tracking branch 'remotes/lalrae/tags/mips-20160513' into stagingPeter Maydell2016-05-132-8/+12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MIPS patches 2016-05-13 Changes: * fix zeroing CP0.WatchLo registers in soft reset * QOMify Jazz led # gpg: Signature made Fri 13 May 2016 11:04:04 BST using RSA key ID 0B29DA6B # gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>" * remotes/lalrae/tags/mips-20160513: hw/display: QOM'ify jazz_led.c target-mips: fix call to memset in soft reset code Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | hw/display: QOM'ify jazz_led.cxiaoqiang.zhao2016-05-131-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | * Drop the old SysBus init function and use instance_init * Move graphic_console_init into realize stage Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
| * | target-mips: fix call to memset in soft reset codeAurelien Jarno2016-05-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent versions of GCC report the following error when compiling target-mips/helper.c: qemu/target-mips/helper.c:542:9: warning: ‘memset’ used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] This is indeed correct and due to a wrong usage of sizeof(). Fix that. Cc: Stefan Weil <sw@weilnetz.de> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: qemu-stable@nongnu.org LP: https://bugs.launchpad.net/qemu/+bug/1577841 Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
* | | Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160512' into stagingPeter Maydell2016-05-1359-656/+917
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | queued 2.7 patches # gpg: Signature made Fri 13 May 2016 01:08:20 BST using RSA key ID 4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" * remotes/rth/tags/pull-tcg-20160512: (39 commits) cpu-exec: Clean up 'interrupt_request' reloading in cpu_handle_interrupt() cpu-exec: Remove unused 'x86_cpu' and 'env' from cpu_exec() cpu-exec: Move TB execution stuff out of cpu_exec() cpu-exec: Move interrupt handling out of cpu_exec() cpu-exec: Move exception handling out of cpu_exec() cpu-exec: Move halt handling out of cpu_exec() cpu-exec: Remove relic orphaned comment tcg: Remove needless CPUState::current_tb cpu-exec: Move TB chaining into tb_find_fast() tcg: Rework tb_invalidated_flag tcg: Clean up from 'next_tb' cpu-exec: elide more icount code if CONFIG_USER_ONLY tcg: reorganize tb_find_physical loop tcg: code_bitmap and code_write_count are not used by user-mode emulation tcg: Allow goto_tb to any target PC in user mode tcg: Clean up direct block chaining safety checks tcg: Clean up tb_jmp_unlink() tcg: Extract removing of jumps to TB from tb_phys_invalidate() tcg: Rename tb_jmp_remove() to tb_remove_from_jmp_list() tcg: Clarify thread safety check in tb_add_jump() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | | cpu-exec: Clean up 'interrupt_request' reloading in cpu_handle_interrupt()Sergey Fedorov2016-05-121-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suggested-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1463071937-26607-1-git-send-email-sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Remove unused 'x86_cpu' and 'env' from cpu_exec()Sergey Fedorov2016-05-121-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <1462962111-32237-6-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Move TB execution stuff out of cpu_exec()Sergey Fedorov2016-05-121-55/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify cpu_exec() by extracting TB execution code outside of cpu_exec() into a new static inline function cpu_loop_exec_tb(). Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <1462962111-32237-5-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Move interrupt handling out of cpu_exec()Sergey Fedorov2016-05-121-62/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify cpu_exec() by extracting interrupt handling code outside of cpu_exec() into a new static inline function cpu_handle_interrupt(). Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <1462962111-32237-4-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Move exception handling out of cpu_exec()Sergey Fedorov2016-05-121-41/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify cpu_exec() by extracting exception handling code out of cpu_exec() into a new static inline function cpu_handle_exception(). Also make cpu_handle_debug_exception() inline as it is used only once. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <1462962111-32237-3-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Move halt handling out of cpu_exec()Sergey Fedorov2016-05-121-14/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify cpu_exec() by extracting CPU halt state handling code out of cpu_exec() into a new static inline function cpu_handle_halt(). Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <1462962111-32237-2-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Remove relic orphaned commentSergey Fedorov2016-05-121-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This comment should have been deleted by commit 0ac087f1f3ae ("removed unused code") but somehow it is still here. There's no point to keep it. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1462286050-21778-1-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Remove needless CPUState::current_tbSergey Fedorov2016-05-127-41/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This field was used for telling cpu_interrupt() to unlink a chain of TBs being executed when it worked that way. Now, cpu_interrupt() don't do this anymore. So we don't need this field anymore. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1462273462-14036-1-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: Move TB chaining into tb_find_fast()Sergey Fedorov2016-05-121-16/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move tb_add_jump() call and surrounding code from cpu_exec() into tb_find_fast(). That simplifies cpu_exec() a little by hiding the direct chaining optimization details into tb_find_fast(). It also allows to move tb_lock()/tb_unlock() pair into tb_find_fast(), putting it closer to tb_find_slow() which also manipulates the lock. Suggested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net> [rth: Fixed rebase typo in nochain test.]
| * | | tcg: Rework tb_invalidated_flagSergey Fedorov2016-05-124-16/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'tb_invalidated_flag' was meant to catch two events: * some TB has been invalidated by tb_phys_invalidate(); * the whole translation buffer has been flushed by tb_flush(). Then it was checked: * in cpu_exec() to ensure that the last executed TB can be safely linked to directly call the next one; * in cpu_exec_nocache() to decide if the original TB should be provided for further possible invalidation along with the temporarily generated TB. It is always safe to patch an invalidated TB since it is not going to be used anyway. It is also safe to call tb_phys_invalidate() for an already invalidated TB. Thus, setting this flag in tb_phys_invalidate() is simply unnecessary. Moreover, it can prevent from pretty proper linking of TBs, if any arbitrary TB has been invalidated. So just don't touch it in tb_phys_invalidate(). If this flag is only used to catch whether tb_flush() has been called then rename it to 'tb_flushed'. Declare it as 'bool' and stick to using only 'true' and 'false' to set its value. Also, instead of setting it in tb_gen_code(), just after tb_flush() has been called, do it right inside of tb_flush(). In cpu_exec(), this flag is used to track if tb_flush() has been called and have made 'next_tb' (a reference to the last executed TB) invalid for linking it to directly call the next TB. tb_flush() can be called during the CPU execution loop from tb_gen_code(), during TB execution or by another thread while 'tb_lock' is released. Catch for translation buffer flush reliably by resetting this flag once before first TB lookup and each time we find it set before trying to add a direct jump. Don't touch in in tb_find_physical(). Each vCPU has its own execution loop in multithreaded mode and thus should have its own copy of the flag to be able to reset it with its own 'next_tb' and don't affect any other vCPU execution thread. So make this flag per-vCPU and move it to CPUState. In cpu_exec_nocache(), we only need to check if tb_flush() has been called from tb_gen_code() called by cpu_exec_nocache() itself. To do this reliably, preserve the old value of the flag, reset it before calling tb_gen_code(), check afterwards, and combine the saved value back to the flag. This patch is based on the patch "tcg: move tb_invalidated_flag to CPUState" from Paolo Bonzini <pbonzini@redhat.com>. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Clean up from 'next_tb'Sergey Fedorov2016-05-124-40/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The value returned from tcg_qemu_tb_exec() is the value passed to the corresponding tcg_gen_exit_tb() at translation time of the last TB attempted to execute. It is a little confusing to store it in a variable named 'next_tb'. In fact, it is a combination of 4-byte aligned pointer and additional information in its two least significant bits. Break it down right away into two variables named 'last_tb' and 'tb_exit' which are a pointer to the last TB attempted to execute and the TB exit reason, correspondingly. This simplifies the code and improves its readability. Correct a misleading documentation comment for tcg_qemu_tb_exec() and fix logging in cpu_tb_exec(). Also rename a misleading 'next_tb' in another couple of places. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | cpu-exec: elide more icount code if CONFIG_USER_ONLYPaolo Bonzini2016-05-121-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [Alex Bennée: #ifndef replay code to match elided functions] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: reorganize tb_find_physical loopAlex Bennée2016-05-121-20/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Put some comments and improve code structure. This should help reading the code. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> [Sergey Fedorov: provide commit message; bring back resetting of tb_invalidated_flag] Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: code_bitmap and code_write_count are not used by user-mode emulationPaolo Bonzini2016-05-121-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [Sergey Fedorov: eliminate the field entirely in user-mode] Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> [rth: merged followup fixup] Message-Id: <1462982777-4513-1-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Allow goto_tb to any target PC in user modeSergey Fedorov2016-05-1219-90/+221
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In user mode, there's only a static address translation, TBs are always invalidated properly and direct jumps are reset when mapping change. Thus the destination address is always valid for direct jumps and there's no need to restrict it to the pages the TB resides in. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Clean up direct block chaining safety checksSergey Fedorov2016-05-127-10/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't take care of direct jumps when address mapping changes. Thus we must be sure to generate direct jumps so that they always keep valid even if address mapping changes. Luckily, we can only allow to execute a TB if it was generated from the pages which match with current mapping. Document tcg_gen_goto_tb() declaration and note the reason for destination PC limitations. Some targets with variable length instructions allow TB to straddle a page boundary. However, we make sure that both of TB pages match the current address mapping when looking up TBs. So it is safe to do direct jumps into the both pages. Correct the checks for some of those targets. Given that, we can safely patch a TB which spans two pages. Remove the unnecessary check in cpu_exec() and allow such TBs to be patched. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Clean up tb_jmp_unlink()Sergey Fedorov2016-05-121-12/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unify the code of this function with tb_jmp_remove_from_list(). Making these functions similar improves their readability. Also this could be a step towards making this function thread-safe. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Extract removing of jumps to TB from tb_phys_invalidate()Sergey Fedorov2016-05-121-18/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the code for removing jumps to a TB out of tb_phys_invalidate() to a separate static inline function tb_jmp_unlink(). This simplifies tb_phys_invalidate() and improves code structure. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Rename tb_jmp_remove() to tb_remove_from_jmp_list()Sergey Fedorov2016-05-121-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tb_jmp_remove() was only used to remove the TB from a list of all TBs jumping to the same TB which is n-th jump destination of the given TB. Put a comment briefly describing the function behavior and rename it to better reflect its purpose. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Clarify thread safety check in tb_add_jump()Sergey Fedorov2016-05-121-13/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The check is to make sure that another thread hasn't already done the same while we were outside of tb_lock. Mention this in a comment. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Init TB's direct jumps before making it visibleSergey Fedorov2016-05-121-13/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize TB's direct jump list data fields and reset the jumps before tb_link_page() puts it into the physical hash table and the physical page list. So TB is completely initialized before it becomes visible. This is pure rearrangement of code to a more suitable place, though it could be a preparation for relaxing the locking scheme in future. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Rearrange tb_link_page() to avoid forward declarationSergey Fedorov2016-05-121-103/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Use uintptr_t type for jmp_list_{next|first} fields of TBSergey Fedorov2016-05-122-23/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These fields do not contain pure pointers to a TranslationBlock structure. So uintptr_t is the most appropriate type for them. Also put some asserts to assure that the two least significant bits of the pointer are always zero before assigning it to jmp_list_first. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Clean up direct block chaining data fieldsSergey Fedorov2016-05-1212-78/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Briefly describe in a comment how direct block chaining is done. It should help in understanding of the following data fields. Rename some fields in TranslationBlock and TCGContext structures to better reflect their purpose (dropping excessive 'tb_' prefix in TranslationBlock but keeping it in TCGContext): tb_next_offset => jmp_reset_offset tb_jmp_offset => jmp_insn_offset tb_next => jmp_target_addr jmp_next => jmp_list_next jmp_first => jmp_list_first Avoid using a magic constant as an invalid offset which is used to indicate that there's no n-th jump generated. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | translate-all: Adjust 256mb testing for mips64Richard Henderson2016-05-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Make sure we preserve the high 32-bits when masking for mips64. Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | translate-all: add missing munmap of the code_gen guard page for MIPSEmilio G. Cota2016-05-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1461283314-2353-2-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | translate-all: remove redundant setting of tcg_ctx.code_gen_buffer_sizeEmilio G. Cota2016-05-121-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The setting of tcg_ctx.code_gen_buffer_size is done by the only caller of size_code_gen_buffer(), which is code_gen_alloc(): $ git grep size_code_gen_buffer translate-all.c:static inline size_t size_code_gen_buffer(size_t tb_size) translate-all.c: tcg_ctx.code_gen_buffer_size = size_code_gen_buffer(tb_size); Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1461283314-2353-1-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg: Note requirement on atomic direct jump patchingSergey Fedorov2016-05-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <1461341333-19646-12-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg/mips: Make direct jump patching thread-safeSergey Fedorov2016-05-121-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure direct jump patching in MIPS is atomic by using atomic_read()/atomic_set() for code patching. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1461341333-19646-11-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net> [rth: Merged the deposit32 followup.] [rth: Merged the following followup.] Message-Id: <1462210518-26522-1-git-send-email-sergey.fedorov@linaro.org>
| * | | tcg/sparc: Make direct jump patching thread-safeSergey Fedorov2016-05-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure direct jump patching in SPARC is atomic by using atomic_read()/atomic_set() for code patching. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <1461341333-19646-10-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg/aarch64: Make direct jump patching thread-safeSergey Fedorov2016-05-121-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure direct jump patching in AArch64 is atomic by using atomic_read()/atomic_set() for code patching. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1461341333-19646-9-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg/arm: Make direct jump patching thread-safeSergey Fedorov2016-05-122-23/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure direct jump patching in ARM is atomic by using atomic_read()/atomic_set() for code patching. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1461341333-19646-8-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
| * | | tcg/s390: Make direct jump patching thread-safeSergey Fedorov2016-05-122-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure direct jump patching in s390 is atomic by: * naturally aligning a location of direct jump address; * using atomic_read()/atomic_set() for code patching. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <1461341333-19646-7-git-send-email-sergey.fedorov@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>