- 13 5月, 2014 1 次提交
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由 Richard Henderson 提交于
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 29 4月, 2014 1 次提交
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由 Richard Henderson 提交于
Let the backend do something special for truncation. Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 19 4月, 2014 1 次提交
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由 Richard Henderson 提交于
Instead require either mulu2_i32 or muluh_i32. The code in tcg-op.h already supports looking for both. Previous incomplete conversion? Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 08 2月, 2014 1 次提交
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由 Peter Maydell 提交于
We have macros for marking TCGv values as unused, checking if they are unused and comparing them to each other. However these only exist for TCGv_i32 and TCGv_i64; add them for TCGv_ptr as well. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NRichard Henderson <rth@twiddle.net>
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- 11 12月, 2013 1 次提交
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由 Richard Henderson 提交于
We previously allocated 32-bits per temp for the next_free_temp entry. We now allocate 4 bits per temp across the 4 bitmaps. Using a linked list meant that if a translator is tweeked, resulting in temps being freed in a different order, that would have follow-on effects throughout the TB. Always allocating the lowest free temp means that follow-on effects are minimized, which can make it easier to diff output when debugging the translators. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 11 10月, 2013 6 次提交
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由 Richard Henderson 提交于
Step three in the transition: helpers not tied to the target "default" endianness. To be used when the guest uses a memory operation with non-default endianness. Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Move TCGLabelQemuLdst and related stuff out of tcg.h. Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Eliminates the repeated checks for having created the s->helpers hash table. Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Slightly changes the interface, in that we now return name instead of a TCGHelperInfo structure, which goes away. Reviewed-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
The function was deleted in 4dc81f28. Reviewed-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 03 9月, 2013 11 次提交
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
The _cmmu helpers can be moved to exec-all.h. The helpers that are used from TCG will shortly need access to tcg_target_long so move their declarations into tcg.h. This requires minor include adjustments to all TCG backends. Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
There are several hosts for which it would be useful to use the available 64-bit registers in a 32-bit pointer environment. Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
Use them in places where mulu2 and muls2 are used. Optimize mulx2 with dead low part to mulxh. Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 09 7月, 2013 2 次提交
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由 Richard Henderson 提交于
Expand the definition of "not present" to include "should not be present". This means we can simplify the logic surrounding the generic tcg opcodes for which the host backend ought not be providing definitions. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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由 Richard Henderson 提交于
There are several hosts with only a "div" insn. Remainder is computed manually from the quotient and inputs. We can do this generically. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net>
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- 03 3月, 2013 2 次提交
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由 Peter Maydell 提交于
Fix some of the nasty TCG race conditions and crashes by implementing cpu_exit() as setting a flag which is checked at the start of each TB. This avoids crashes if a thread or signal handler calls cpu_exit() while the execution thread is itself modifying the TB graph (which may happen in system emulation mode as well as in linux-user mode with a multithreaded guest binary). This fixes the crashes seen in LP:668799; however there are another class of crashes described in LP:1098729 which stem from the fact that in linux-user with a multithreaded guest all threads will use and modify the same global TCG date structures (including the generated code buffer) without any kind of locking. This means that multithreaded guest binaries are still in the "unsupported" category. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Peter Maydell 提交于
Document tcg_qemu_tb_exec(). In particular, its return value is a combination of a pointer to the next translation block and some extra information in the low two bits. Provide some #defines for the values passed in these bits to improve code clarity. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 24 2月, 2013 3 次提交
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由 Richard Henderson 提交于
Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Richard Henderson 提交于
Matching the 32-bit multiword arithmetic that we already have. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Richard Henderson 提交于
Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 16 2月, 2013 2 次提交
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由 Evgeny Voevodin 提交于
It's worth to clean-up translation blocks variables and move them into one context as was suggested by Swirl. Also if we use this context directly inside tcg_ctx, then it speeds up code generation a bit. Signed-off-by: NEvgeny Voevodin <evgenyvoevodin@gmail.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Evgeny Voevodin 提交于
Signed-off-by: NEvgeny Voevodin <evgenyvoevodin@gmail.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 29 12月, 2012 1 次提交
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由 Richard Henderson 提交于
Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRichard Henderson <rth@twiddle.net> Reviewed-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 08 12月, 2012 1 次提交
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由 Evgeny Voevodin 提交于
Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 07 12月, 2012 1 次提交
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由 Stefan Weil 提交于
Remove also a duplicated 'the'. Signed-off-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 17 11月, 2012 2 次提交
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由 Evgeny Voevodin 提交于
Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com> Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Evgeny Voevodin 提交于
Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com> Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 03 11月, 2012 1 次提交
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由 Yeongkyoon Lee 提交于
Add optimized TCG qemu_ld/st generation which locates the code of TLB miss cases at the end of a block after generating the other IRs. Currently, this optimization supports only i386 and x86_64 hosts. Signed-off-by: NYeongkyoon Lee <yeongkyoon.lee@samsung.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 28 10月, 2012 3 次提交
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由 Aurelien Jarno 提交于
Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
The current helper flags, TCG_CALL_CONST and TCG_CALL_PURE might be confusing and doesn't provide enough granularity for some helpers (FP helpers for example). This patch changes them into the following helpers flags: - TCG_CALL_NO_READ_GLOBALS means that the helper does not read globals, either directly or via an exception. They will not be saved to their canonical location before calling the helper. - TCG_CALL_NO_WRITE_GLOBALS means that the helper does not modify any globals. They will only be saved to their canonical locations before calling helpers, but they won't be reloaded afterwise. - TCG_CALL_NO_SIDE_EFFECTS means that the call to the function is removed if the return value is not used. It provides convenience flags, to avoid helper definitions longer than 80 characters. It also provides compatibility flags, and updates the documentation. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
Operations with side effects (in practice qemu_ld/st ops), only need to synchronize globals to make sure the CPU state is consistent in case of exception. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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