Merge tag 'pull-misc-20240409' of https://gitlab.com/rth7680/qemu into staging

target/m68k: Fix fp accrued exception reporting
target/hppa: Fix IIAOQ, IIASQ for pa2.0
target/sh4: Fixes to mac.l and

Merge tag 'pull-misc-20240409' of https://gitlab.com/rth7680/qemu into staging

target/m68k: Fix fp accrued exception reporting
target/hppa: Fix IIAOQ, IIASQ for pa2.0
target/sh4: Fixes to mac.l and mac.w saturation
target/sh4: Fixes to illegal delay slot reporting
linux-user: Fix waitid return of siginfo_t and rusage
linux-user: Preserve unswapped siginfo_t for strace
tcg/optimize: Do not attempt to constant fold neg_vec
accel/tcg: Improve can_do_io management, mmio bug fix

# -----BEGIN PGP SIGNATURE-----
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# =FYg/
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 09 Apr 2024 20:33:13 BST
# 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-misc-20240409' of https://gitlab.com/rth7680/qemu:
linux-user: Preserve unswapped siginfo_t for strace
accel/tcg: Improve can_do_io management
target/s390x: Use insn_start from DisasContextBase
target/riscv: Use insn_start from DisasContextBase
target/microblaze: Use insn_start from DisasContextBase
target/i386: Preserve DisasContextBase.insn_start across rewind
target/hppa: Use insn_start from DisasContextBase
target/arm: Use insn_start from DisasContextBase
accel/tcg: Add insn_start to DisasContextBase
tcg: Add TCGContext.emit_before_op
target/m68k: Map FPU exceptions to FPSR register
target/sh4: add missing CHECK_NOT_DELAY_SLOT
target/sh4: Fix mac.w with saturation enabled
target/sh4: Fix mac.l with saturation enabled
target/sh4: Merge mach and macl into a union
target/sh4: mac.w: memory accesses are 16-bit words
target/hppa: Fix IIAOQ, IIASQ for pa2.0
linux-user: replace calloc() with g_new0()
linux-user: Fix waitid return of siginfo_t and rusage
tcg/optimize: Do not attempt to constant fold neg_vec

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/sh4: Fix mac.w with saturation enabled

The saturation arithmetic logic in helper_macw is not correct.
I tested and verified this behavior on a SH7091.

Reviewd-by: Yoshinori Sato <ysato@users

target/sh4: Fix mac.w with saturation enabled

The saturation arithmetic logic in helper_macw is not correct.
I tested and verified this behavior on a SH7091.

Reviewd-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Zack Buhman <zack@buhman.org>
Message-Id: <20240405233802.29128-3-zack@buhman.org>
[rth: Reformat helper_macw, add a test case.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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target/sh4: Fix mac.l with saturation enabled

The saturation arithmetic logic in helper_macl is not correct.
I tested and verified this behavior on a SH7091.

Signed-off-by: Zack Buhman <zack@buhman

target/sh4: Fix mac.l with saturation enabled

The saturation arithmetic logic in helper_macl is not correct.
I tested and verified this behavior on a SH7091.

Signed-off-by: Zack Buhman <zack@buhman.org>
Message-Id: <20240404162641.27528-2-zack@buhman.org>
[rth: Reformat helper_macl, add a test case.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20211016' into staging

Move gdb singlestep to generic code
Fix cpu_common_props

# gpg: Signature made Sat 16 Oct 2021 11:13:54 AM PDT
# gpg:

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20211016' into staging

Move gdb singlestep to generic code
Fix cpu_common_props

# gpg: Signature made Sat 16 Oct 2021 11:13:54 AM PDT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* remotes/rth/tags/pull-tcg-20211016: (24 commits)
Revert "cpu: Move cpu_common_props to hw/core/cpu.c"
target/xtensa: Drop check for singlestep_enabled
target/tricore: Drop check for singlestep_enabled
target/sh4: Drop check for singlestep_enabled
target/s390x: Drop check for singlestep_enabled
target/rx: Drop checks for singlestep_enabled
target/riscv: Remove exit_tb and lookup_and_goto_ptr
target/riscv: Remove dead code after exception
target/ppc: Drop exit checks for singlestep_enabled
target/openrisc: Drop checks for singlestep_enabled
target/mips: Drop exit checks for singlestep_enabled
target/mips: Fix single stepping
target/microblaze: Drop checks for singlestep_enabled
target/microblaze: Check CF_NO_GOTO_TB for DISAS_JUMP
target/m68k: Drop checks for singlestep_enabled
target/i386: Drop check for singlestep_enabled
target/i386: Check CF_NO_GOTO_TB for dc->jmp_opt
target/hppa: Drop checks for singlestep_enabled
target/arm: Drop checks for singlestep_enabled
target/hexagon: Drop checks for singlestep_enabled
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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target/sh4: Drop check for singlestep_enabled

GDB single-stepping is now handled generically.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henders

target/sh4: Drop check for singlestep_enabled

GDB single-stepping is now handled generically.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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Merge remote-tracking branch 'remotes/aurel/tags/pull-target-sh4-20170718' into staging

Queued target/sh4 patches

# gpg: Signature made Tue 18 Jul 2017 22:44:25 BST
# gpg: using RSA

Merge remote-tracking branch 'remotes/aurel/tags/pull-target-sh4-20170718' into staging

Queued target/sh4 patches

# gpg: Signature made Tue 18 Jul 2017 22:44:25 BST
# gpg: using RSA key 0xBA9C78061DDD8C9B
# gpg: Good signature from "Aurelien Jarno <aurelien@aurel32.net>"
# gpg: aka "Aurelien Jarno <aurelien@jarno.fr>"
# gpg: aka "Aurelien Jarno <aurel32@debian.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 7746 2642 A9EF 94FD 0F77 196D BA9C 7806 1DDD 8C9B

* remotes/aurel/tags/pull-target-sh4-20170718: (31 commits)
target/sh4: Use tcg_gen_lookup_and_goto_ptr
target/sh4: Implement fsrra
target/sh4: Add missing FPSCR.PR == 0 checks
target/sh4: Implement fpchg
target/sh4: Introduce CHECK_SH4A
target/sh4: Introduce CHECK_FPSCR_PR_*
target/sh4: Tidy misc illegal insn checks
target/sh4: Unify code for CHECK_FPU_ENABLED
target/sh4: Unify code for CHECK_PRIVILEGED
target/sh4: Unify code for CHECK_NOT_DELAY_SLOT
target/sh4: Simplify 64-bit fp reg-reg move
target/sh4: Load/store Dr as 64-bit quantities
target/sh4: Merge DREG into fpr64 routines
target/sh4: Eliminate unused XREG macro
target/sh4: Hoist fp register bank selection
target/sh4: Pass DisasContext to fpr64 routines
target/sh4: Unify cpu_fregs into FREG
target/sh4: Hoist register bank selection
linux-user/sh4: Clean env->flags on signal boundaries
linux-user/sh4: Notice gUSA regions during signal delivery
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/sh4: Implement fsrra

Signed-off-by: Richard Henderson <rth@twiddle.net>

Message-Id: <20170718200255.31647-27-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

target/sh4: Handle user-space atomics

For uniprocessors, SH4 uses optimistic restartable atomic sequences.
Upon an interrupt, a real kernel would simply notice magic values in
the registers and rese

target/sh4: Handle user-space atomics

For uniprocessors, SH4 uses optimistic restartable atomic sequences.
Upon an interrupt, a real kernel would simply notice magic values in
the registers and reset the PC to the start of the sequence.

For QEMU, we cannot do this in quite the same way. Instead, we notice
the normal start of such a sequence (mov #-x,r15), and start a new TB
that can be executed under cpu_exec_step_atomic.

Reported-by: Bruno Haible <bruno@clisp.org>
LP: https://bugs.launchpad.net/bugs/1701971
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-7-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

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target/sh4: return result of fcmp using TCG

Since that the T bit of the SR register is mapped using a TGC global,
it's better to return the value through TCG than writing it directly. It
allows to d

target/sh4: return result of fcmp using TCG

Since that the T bit of the SR register is mapped using a TGC global,
it's better to return the value through TCG than writing it directly. It
allows to declare the helpers with the flag TCG_CALL_NO_WG.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170702202814.27793-5-aurelien@aurel32.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

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target/sh4: do not use a helper to implement fneg

There is no need to use a helper to flip one bit, just use a TCG xor
instruction instead.

Message-Id: <20170702202814.27793-5-aurelien@aurel32.net>

target/sh4: do not use a helper to implement fneg

There is no need to use a helper to flip one bit, just use a TCG xor
instruction instead.

Message-Id: <20170702202814.27793-5-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

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target/sh4: do not check for PR bit for fabs instruction

The SH4 manual is not fully clear about that, but real hardware do not
check for the PR bit, which allows to select between single or double

target/sh4: do not check for PR bit for fabs instruction

The SH4 manual is not fully clear about that, but real hardware do not
check for the PR bit, which allows to select between single or double
precision, for the fabs instruction. This is probably what is meant by
"Same operation is performed regardless of precision."

Remove the check, and at the same time use a TCG instruction instead of
a helper to clear one bit.

LP: https://bugs.launchpad.net/qemu/+bug/1701821
Reported-by: Bruno Haible <bruno@clisp.org>
Message-Id: <20170702202814.27793-2-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

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Merge remote-tracking branch 'remotes/huth/tags/target-dirs-20161220' into staging

Move target-xxx folders to target/ directory

# gpg: Signature made Tue 20 Dec 2016 21:00:39 GMT
# gpg:

Merge remote-tracking branch 'remotes/huth/tags/target-dirs-20161220' into staging

Move target-xxx folders to target/ directory

# gpg: Signature made Tue 20 Dec 2016 21:00:39 GMT
# gpg: using RSA key 0x2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>"
# gpg: aka "Thomas Huth <thuth@redhat.com>"
# gpg: aka "Thomas Huth <huth@tuxfamily.org>"
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5

* remotes/huth/tags/target-dirs-20161220:
Move target-* CPU file into a target/ folder

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V,

Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>

show more ...