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2023-11-28hw/avr/atmega: Fix wrong initial value of stack pointerGihun Nam1-0/+3
The current implementation initializes the stack pointer of AVR devices to 0. Although older AVR devices used to be like that, newer ones set it to RAMEND. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1525 Signed-off-by: Gihun Nam <gihun.nam@outlook.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <PH0P222MB0010877445B594724D40C924DEBDA@PH0P222MB0010.NAMP222.PROD.OUTLOOK.COM> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-11-07target: Move ArchCPUClass definition to 'cpu.h'Philippe Mathieu-Daudé1-0/+14
The OBJECT_DECLARE_CPU_TYPE() macro forward-declares each ArchCPUClass type. These forward declarations are sufficient for code in hw/ to use the QOM definitions. No need to expose these structure definitions. Keep each local to their target/ by moving them to the corresponding "cpu.h" header. 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: <20231013140116.255-13-philmd@linaro.org>
2023-11-07target: Declare FOO_CPU_TYPE_NAME/SUFFIX in 'cpu-qom.h'Philippe Mathieu-Daudé1-2/+0
Hegerogeneous code needs access to the FOO_CPU_TYPE_NAME() macro to resolve target CPU types. Move the declaration (along with the required FOO_CPU_TYPE_SUFFIX) to "cpu-qom.h". "target/foo/cpu-qom.h" is supposed to be target agnostic (include-able by any target). Add such mention in the header. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231013140116.255-7-philmd@linaro.org>
2023-11-07target: Unify QOM stylePhilippe Mathieu-Daudé1-2/+0
Enforce the style described by commit 067109a11c ("docs/devel: mention the spacing requirement for QOM"): The first declaration of a storage or class structure should always be the parent and leave a visual space between that declaration and the new code. It is also useful to separate backing for properties (options driven by the user) and internal state to make navigation easier. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Message-Id: <20231013140116.255-2-philmd@linaro.org>
2023-10-03accel/tcg: Move CPUNegativeOffsetState into CPUStateRichard Henderson1-1/+0
Retain the separate structure to emphasize its importance. Enforce CPUArchState always follows CPUState without padding. Reviewed-by: Anton Johansson <anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-26target: Widen pc/cs_base in cpu_get_tb_cpu_stateAnton Johansson1-2/+2
Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230621135633.1649-4-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-12-14cleanup: Tweak and re-run return_directly.cocciMarkus Armbruster1-3/+1
Tweak the semantic patch to drop redundant parenthesis around the return expression. Coccinelle drops a comment in hw/rdma/vmw/pvrdma_cmd.c; restored manually. Coccinelle messes up vmdk_co_create(), not sure why. Change dropped, will be done manually in the next commit. Line breaks in target/avr/cpu.h and hw/rdma/vmw/pvrdma_cmd.c tidied up manually. Whitespace in tools/virtiofsd/fuse_lowlevel.c tidied up manually. checkpatch.pl complains "return of an errno should typically be -ve" two times for hw/9pfs/9p-synth.c. Preexisting, the patch merely makes it visible to checkpatch.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20221122134917.1217307-2-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-06-20target/avr: Drop avr_cpu_memory_rw_debug()Bin Meng1-2/+0
CPUClass::memory_rw_debug() holds a callback for GDB memory access. If not provided, cpu_memory_rw_debug() is used by the GDB stub. Drop avr_cpu_memory_rw_debug() which does nothing special. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220322095004.70682-1-bmeng.cn@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-05-11Clean up decorations and whitespace around header guardsMarkus Armbruster1-1/+1
Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-5-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-06target: Use ArchCPU as interface to target CPUPhilippe Mathieu-Daudé1-1/+1
ArchCPU is our interface with target-specific code. Use it as a forward-declared opaque pointer (abstract type), having its structure defined by each target. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220214183144.27402-15-f4bug@amsat.org>
2022-03-06target: Introduce and use OBJECT_DECLARE_CPU_TYPE() macroPhilippe Mathieu-Daudé1-4/+2
Replace the boilerplate code to declare CPU QOM types and macros, and forward-declare the CPU instance type. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220214183144.27402-14-f4bug@amsat.org>
2022-03-06target: Use CPUArchState as interface to target-specific CPU statePhilippe Mathieu-Daudé1-5/+2
While CPUState is our interface with generic code, CPUArchState is our interface with target-specific code. Use CPUArchState as an abstract type, defined by each target. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220214183144.27402-13-f4bug@amsat.org>
2021-09-21include/exec: Move cpu_signal_handler declarationRichard Henderson1-2/+0
There is nothing target specific about this. The implementation is host specific, but the declaration is 100% common. Reviewed-By: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-21target/avr: Implement gdb_adjust_breakpointRichard Henderson1-0/+1
Ensure at registration that all breakpoints are in code space, not data space. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-07-11target/avr: Add support for disassembling via option '-d in_asm'Michael Rolnik1-0/+1
Provide function disassembles executed instruction when '-d in_asm' is provided. Example: $ qemu-system-avr -bios free-rtos/Demo/AVR_ATMega2560_GCC/demo.elf -d in_asm ... IN: 0x0000014a: CALL 0x3808 IN: main 0x00003808: CALL 0x4b4 IN: vParTestInitialise 0x000004b4: LDI r24, 255 0x000004b6: STS r24, 0 0x000004b8: MULS r16, r20 0x000004ba: OUT $1, r24 0x000004bc: LDS r24, 0 0x000004be: MULS r16, r20 0x000004c0: OUT $2, r24 0x000004c2: RET ... Suggested-by: Richard Henderson <richard.henderson@linaro.org> Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Suggested-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> [rth: Fix spacing and const mnemonic arrays] Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20200705140315.260514-19-huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-10target/avr: Introduce enumeration AVRFeatureMichael Rolnik1-0/+46
This patch introduces enumeration "AVRFeature" that will be used for defining various AVR core types. [AM: Split a larger AVR introduction patch into logical units] Suggested-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Co-developed-by: Michael Rolnik <mrolnik@gmail.com> Co-developed-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> Signed-off-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20200705140315.260514-8-huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-10target/avr: CPU class: Add GDB supportMichael Rolnik1-0/+2
This includes GDB hooks for reading from wnd wrtiting to AVR registers, and xml register definition file as well. [AM: Split a larger AVR introduction patch into logical units] Suggested-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Co-developed-by: Michael Rolnik <mrolnik@gmail.com> Co-developed-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> Signed-off-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> [thuth: Fixed avr_cpu_gdb_read_register() parameter] Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20200705140315.260514-7-huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-10target/avr: CPU class: Add migration supportMichael Rolnik1-0/+2
Add migration-related functions of AVR CPU class object. [AM: Split a larger AVR introduction patch into logical units] Suggested-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Co-developed-by: Michael Rolnik <mrolnik@gmail.com> Co-developed-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> Signed-off-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20200705140315.260514-6-huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-10target/avr: Introduce basic CPU class objectMichael Rolnik1-0/+139
This patch introduces AVR CPU class object and its basic elements and functions. [AM: Split a larger AVR introduction patch into logical units] Suggested-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Co-developed-by: Michael Rolnik <mrolnik@gmail.com> Co-developed-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> Signed-off-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> [thuth: Adjusted reset and parent_reset handling] Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20200705140315.260514-3-huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-10target/avr: Add basic parameters of the new platformMichael Rolnik1-0/+66
This includes definitions of various basic parameters needed for integration of a new platform into QEMU. [AM: Split a larger AVR introduction patch into logical units] Suggested-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Co-developed-by: Michael Rolnik <mrolnik@gmail.com> Co-developed-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> Signed-off-by: Sarah Harris <S.E.Harris@kent.ac.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <aleksandar.m.mail@gmail.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> [thuth: Simplify MAINTAINERS right from the start] Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <20200705140315.260514-2-huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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