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2024-04-26target/sparc: Replace abi_ulong by uint32_t for TARGET_ABI32Philippe Mathieu-Daudé1-1/+1
We have abi_ulong == uint32_t for the 32-bit ABI. Use the generic type to avoid to depend on the "exec/user/abitypes.h" header. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240418192525.97451-14-philmd@linaro.org>
2024-04-26target/ppc/excp_helper: Avoid 'abi_ptr' in system emulationPhilippe Mathieu-Daudé1-1/+1
'abi_ptr' is a user specific type. The system emulation equivalent is 'target_ulong'. Use it in ppc_ldl_code() to emphasis this is not an user emulation function. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20231211212003.21686-18-philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-26target: Define TCG_GUEST_DEFAULT_MO in 'cpu-param.h'Philippe Mathieu-Daudé28-61/+65
accel/tcg/ files requires the following definitions: - TARGET_LONG_BITS - TARGET_PAGE_BITS - TARGET_PHYS_ADDR_SPACE_BITS - TCG_GUEST_DEFAULT_MO The first 3 are defined in "cpu-param.h". The last one in "cpu.h", with a bunch of definitions irrelevant for TCG. By moving the TCG_GUEST_DEFAULT_MO definition to "cpu-param.h", we can simplify various accel/tcg includes. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20231211212003.21686-4-philmd@linaro.org>
2024-04-26semihosting/guestfd: Remove unused 'semihosting/uaccess.h' headerPhilippe Mathieu-Daudé1-4/+1
Nothing in guestfd.c requires "semihosting/uaccess.h" nor "qemu.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng> Message-Id: <20231212123401.37493-8-philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-26semihosting/uaccess: Avoid including 'cpu.h'Philippe Mathieu-Daudé1-1/+3
"semihosting/uaccess.h" only requires the following headers: - "exec/cpu-defs.h" for target_ulong, - "exec/cpu-common.h" for cpu_memory_rw_debug() - "exec/tswap.h" for tswap32() and tswap64(). Include them instead of the huge "cpu.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <42c6471e-8383-45e0-85ee-e20ca32ecbad@linaro.org>
2024-04-26gdbstub: Avoid including 'cpu.h' in 'gdbstub/helpers.h'Philippe Mathieu-Daudé3-1/+4
We only need the "exec/tswap.h" and "cpu-param.h" headers. Only include "cpu.h" in the target gdbstub.c source files. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240418192525.97451-20-philmd@linaro.org>
2024-04-26gdbstub: Simplify #ifdef'ry in helpers.hPhilippe Mathieu-Daudé1-5/+4
Slightly simplify by checking NEED_CPU_H definition in header. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240322161439.6448-2-philmd@linaro.org>
2024-04-26gdbstub: Include missing 'hw/core/cpu.h' headerPhilippe Mathieu-Daudé1-0/+1
Functions such gdb_get_cpu_pid() dereference CPUState so require the structure declaration from "hw/core/cpu.h": static uint32_t gdb_get_cpu_pid(CPUState *cpu) { ... return cpu->cluster_index + 1; } Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20231211212003.21686-15-philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-26accel: Include missing 'exec/cpu_ldst.h' headerPhilippe Mathieu-Daudé4-0/+4
Theses files call cpu_ldl_code() which is declared in "exec/cpu_ldst.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231211212003.21686-5-philmd@linaro.org>
2024-04-26exec: Expose 'target_page.h' API to user emulationPhilippe Mathieu-Daudé5-43/+45
User-only objects might benefit from the "exec/target_page.h" API, which allows to build some objects once for all targets. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231211212003.21686-3-philmd@linaro.org>
2024-04-26exec: Include 'cpu.h' before validating CPUArchState placementPhilippe Mathieu-Daudé1-0/+1
CPUArchState 'env' field is defined within the ArchCPU structure, so we need to include each target "cpu.h" header which defines it. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20231211212003.21686-2-philmd@linaro.org>
2024-04-26exec: Reduce tlb_set_dirty() declaration scopePhilippe Mathieu-Daudé3-6/+1
tlb_set_dirty() is only used in accel/tcg/cputlb.c, where it is defined. Declare it statically, removing the stub. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240418192525.97451-11-philmd@linaro.org>
2024-04-26exec: Rename NEED_CPU_H -> COMPILING_PER_TARGETPhilippe Mathieu-Daudé16-33/+33
'NEED_CPU_H' guard target-specific code; it is defined by meson altogether with the 'CONFIG_TARGET' definition. Rename NEED_CPU_H as COMPILING_PER_TARGET to clarify its meaning. Mechanical change running: $ sed -i s/NEED_CPU_H/COMPILING_PER_TARGET/g $(git grep -l NEED_CPU_H) then manually add a /* COMPILING_PER_TARGET */ comment after the '#endif' when the block is large. Inspired-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240322161439.6448-4-philmd@linaro.org>
2024-04-25target/s390x: Remove KVM stubs in cpu_models.hPhilippe Mathieu-Daudé1-15/+0
Since the calls are elided when KVM is not available, we can remove the stubs (which are never compiled). Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240419090631.48055-1-philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25tests/unit: Remove debug statements in test-nested-aio-poll.cPhilippe Mathieu-Daudé1-7/+0
We have been running this test for almost a year; it is safe to remove its debug statements, which clutter CI jobs output: ▶ 88/100 /nested-aio-poll OK io_read 0x16bb26158 io_poll_true 0x16bb26158 > io_poll_ready io_read 0x16bb26164 < io_poll_ready io_poll_true 0x16bb26158 io_poll_false 0x16bb26164 > io_poll_ready io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_poll_false 0x16bb26164 io_read 0x16bb26164 < io_poll_ready 88/100 qemu:unit / test-nested-aio-poll OK Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-ID: <20240422112246.83812-1-philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25docs/devel: fix minor typo in submitting-a-patch.rstManos Pitsidianakis1-1/+1
s/Resolved:/Resolves:/ Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240422124128.4034482-1-manos.pitsidianakis@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25hw/s390x: Include missing 'cpu.h' headerPhilippe Mathieu-Daudé2-0/+3
"cpu.h" is implicitly included. Include it explicitly to avoid the following error when refactoring headers: hw/s390x/s390-stattrib.c:86:40: error: use of undeclared identifier 'TARGET_PAGE_SIZE' len = sac->peek_stattr(sas, addr / TARGET_PAGE_SIZE, buflen, vals); ^ hw/s390x/s390-stattrib.c:94:58: error: use of undeclared identifier 'TARGET_PAGE_MASK' addr / TARGET_PAGE_SIZE, len, addr & ~TARGET_PAGE_MASK); ^ hw/s390x/s390-stattrib.c:224:40: error: use of undeclared identifier 'TARGET_PAGE_BITS' qemu_put_be64(f, (start_gfn << TARGET_PAGE_BITS) | STATTR_FLAG_MORE); ^ In file included from hw/s390x/s390-virtio-ccw.c:17: hw/s390x/s390-virtio-hcall.h:22:27: error: unknown type name 'CPUS390XState' int s390_virtio_hypercall(CPUS390XState *env); ^ Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Eric Farman <farman@linux.ibm.com> Message-ID: <20240322162822.7391-1-philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25hw/core: Support module-id in numa configurationZhao Liu1-0/+16
Module is a level above the core, thereby supporting numa configuration on the module level can bring user more numa flexibility. This is the natural further support for module level. Add module level support in numa configuration. Tested-by: Yongwei Ma <yongwei.ma@intel.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Message-ID: <20240424154929.1487382-5-zhao1.liu@intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/core: Introduce module-id as the topology subindexZhao Liu2-0/+8
Add module-id in CpuInstanceProperties, to locate the CPU with module level. Suggested-by: Xiaoyao Li <xiaoyao.li@intel.com> Tested-by: Yongwei Ma <yongwei.ma@intel.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240424154929.1487382-4-zhao1.liu@intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/core/machine: Support modules in -smpZhao Liu4-6/+40
Add "modules" parameter parsing support in -smp. Suggested-by: Xiaoyao Li <xiaoyao.li@intel.com> Tested-by: Yongwei Ma <yongwei.ma@intel.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240424154929.1487382-3-zhao1.liu@intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/core/machine: Introduce the module as a CPU topology levelZhao Liu3-1/+6
In x86, module is the topology level above core, which contains a set of cores that share certain resources (in current products, the resource usually includes L2 cache, as well as module scoped features and MSRs). Though smp.clusters could also share the L2 cache resource [1], there are following reasons that drive us to introduce the new smp.modules: * As the CPU topology abstraction in device tree [2], cluster supports nesting (though currently QEMU hasn't support that). In contrast, (x86) module does not support nesting. * Due to nesting, there is great flexibility in sharing resources on cluster, rather than narrowing cluster down to sharing L2 (and L3 tags) as the lowest topology level that contains cores. * Flexible nesting of cluster allows it to correspond to any level between the x86 package and core. * In Linux kernel, x86's cluster only represents the L2 cache domain but QEMU's smp.clusters is the CPU topology level. Linux kernel will also expose module level topology information in sysfs for x86. To avoid cluster ambiguity and keep a consistent CPU topology naming style with the Linux kernel, we introduce module level for x86. The module is, in existing hardware practice, the lowest layer that contains the core, while the cluster is able to have a higher topological scope than the module due to its nesting. Therefore, place the module between the cluster and the core: drawer/book/socket/die/cluster/module/core/thread With the above topological hierarchy order, introduce module level support in MachineState and MachineClass. [1]: https://lore.kernel.org/qemu-devel/c3d68005-54e0-b8fe-8dc1-5989fe3c7e69@huawei.com/ [2]: https://www.kernel.org/doc/Documentation/devicetree/bindings/cpu/cpu-topology.txt Suggested-by: Xiaoyao Li <xiaoyao.li@intel.com> Tested-by: Yongwei Ma <yongwei.ma@intel.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Message-ID: <20240424154929.1487382-2-zhao1.liu@intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/i386/pc_sysfw: Remove unused parameter from pc_isa_bios_init()Bernhard Beschow1-3/+2
Signed-off-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240422200625.2768-2-shentey@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/misc : Correct 5 spaces indents in stm32l4x5_extiInès Varhol1-4/+4
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240421141455.116548-1-ines.varhol@telecom-paris.fr> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/xtensa: Include missing 'exec/cpu-common.h' in 'bootparam.h'Philippe Mathieu-Daudé1-0/+2
cpu_physical_memory_write() is declared in "exec/cpu-common.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng> Message-Id: <20240418192525.97451-21-philmd@linaro.org>
2024-04-25hw/elf_ops: Rename elf_ops.h -> elf_ops.h.incPhilippe Mathieu-Daudé4-4/+4
Since commit 139c1837db ("meson: rename included C source files to .c.inc"), QEMU standard procedure for included C files is to use *.c.inc. Besides, since commit 6a0057aa22 ("docs/devel: make a statement about includes") this is documented in the Coding Style: If you do use template header files they should be named with the ``.c.inc`` or ``.h.inc`` suffix to make it clear they are being included for expansion. Therefore rename "hw/elf_ops.h" as "hw/elf_ops.h.inc". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240424173333.96148-2-philmd@linaro.org>
2024-04-25hw/cxl/cxl-cdat: Make cxl_doe_cdat_init() return booleanZhao Liu4-8/+6
As error.h suggested, the best practice for callee is to return something to indicate success / failure. With returned boolean, there's no need to dereference @errp to check failure case. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-ID: <20240418100433.1085447-4-zhao1.liu@linux.intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/cxl/cxl-cdat: Make ct3_build_cdat() return booleanZhao Liu1-4/+5
As error.h suggested, the best practice for callee is to return something to indicate success / failure. So make ct3_build_cdat() return boolean, and this is the preparation for cxl_doe_cdat_init() returning boolean. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-ID: <20240418100433.1085447-3-zhao1.liu@linux.intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/cxl/cxl-cdat: Make ct3_load_cdat() return booleanZhao Liu1-6/+7
As error.h suggested, the best practice for callee is to return something to indicate success / failure. So make ct3_load_cdat() return boolean, and this is the preparation for cxl_doe_cdat_init() returning boolean. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-ID: <20240418100433.1085447-2-zhao1.liu@linux.intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw: Add a Kconfig switch for the TYPE_CPU_CLUSTER deviceThomas Huth4-1/+10
The cpu-cluster device is only needed for some few arm and riscv machines. Let's avoid compiling and linking it if it is not really necessary. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-ID: <20240415065655.130099-3-thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw: Fix problem with the A*MPCORE switches in the Kconfig filesThomas Huth3-18/+10
A9MPCORE, ARM11MPCORE and A15MPCORE are defined twice, once in hw/cpu/Kconfig and once in hw/arm/Kconfig. This is only possible by accident, since hw/cpu/Kconfig is never included from hw/Kconfig. Fix it by declaring the switches only in hw/cpu/Kconfig (since the related files reside in the hw/cpu/ folder) and by making sure that the file hw/cpu/Kconfig is now properly included from hw/Kconfig. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-ID: <20240415065655.130099-2-thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-04-25hw/riscv/virt: Replace sprintf by g_strdup_printfPhilippe Mathieu-Daudé1-8/+9
sprintf() is deprecated on Darwin since macOS 13.0 / XCode 14.1. Use g_strdup_printf instead. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> [rth: Use g_strdup_printf] Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240412073346.458116-26-richard.henderson@linaro.org>
2024-04-25hw/misc/imx: Replace sprintf() by snprintf()Philippe Mathieu-Daudé8-10/+10
sprintf() is deprecated on Darwin since macOS 13.0 / XCode 14.1, resulting in painful developer experience. Use snprintf() instead. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20240411104340.6617-6-philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-25hw/misc/applesmc: Simplify DeviceReset handlerPhilippe Mathieu-Daudé1-15/+21
Have applesmc_find_key() return a const pointer. Since the returned buffers are not modified in applesmc_io_data_write(), it is pointless to delete and re-add the keys in the DeviceReset handler. Add them once in DeviceRealize, and discard them in the DeviceUnrealize handler. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20240410180819.92332-1-philmd@linaro.org>
2024-04-25tests/qtest: Add tests for the STM32L4x5 USARTArnaud Minier2-1/+318
Test: - read/write from/to the usart registers - send/receive a character/string over the serial port Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-6-arnaud.minier@telecom-paris.fr [PMM: fix checkpatch nits, remove commented out code] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25hw/arm: Add the USART to the stm32l4x5 SoCArnaud Minier4-7/+86
Add the USART to the SoC and connect it to the other implemented devices. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-5-arnaud.minier@telecom-paris.fr [PMM: fixed a few checkpatch nits] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25hw/char/stm32l4x5_usart: Add options for serial parameters settingArnaud Minier2-0/+99
Add a function to change the settings of the serial connection. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-4-arnaud.minier@telecom-paris.fr Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25hw/char/stm32l4x5_usart: Enable serial read and writeArnaud Minier3-0/+151
Implement the ability to read and write characters to the usart using the serial port. The character transmission is based on the cmsdk-apb-uart implementation. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-3-arnaud.minier@telecom-paris.fr [PMM: fixed a few checkpatch nits] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25hw/char: Implement STM32L4x5 USART skeletonArnaud Minier6-0/+471
Add the basic infrastructure (register read/write, type...) to implement the STM32L4x5 USART. Also create different types for the USART, UART and LPUART of the STM32L4x5 to deduplicate code and enable the implementation of different behaviors depending on the type. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-2-arnaud.minier@telecom-paris.fr [PMM: update to new reset hold method signature; fixed a few checkpatch nits] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25reset: Add RESET_TYPE_SNAPSHOT_LOADPeter Maydell4-18/+19
Some devices and machines need to handle the reset before a vmsave snapshot is loaded differently -- the main user is the handling of RNG seed information, which does not want to put a new RNG seed into a ROM blob when we are doing a snapshot load. Currently this kind of reset handling is supported only for: * TYPE_MACHINE reset methods, which take a ShutdownCause argument * reset functions registered with qemu_register_reset_nosnapshotload To allow a three-phase-reset device to also distinguish "snapshot load" reset from the normal kind, add a new ResetType RESET_TYPE_SNAPSHOT_LOAD. All our existing reset methods ignore the reset type, so we don't need to update any device code. Add the enum type, and make qemu_devices_reset() use the right reset type for the ShutdownCause it is passed. This allows us to get rid of the device_reset_reason global we were using to implement qemu_register_reset_nosnapshotload(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Luc Michel <luc.michel@amd.com> Message-id: 20240412160809.1260625-7-peter.maydell@linaro.org
2024-04-25docs/devel/reset: Update to new API for hold and exit phase methodsPeter Maydell1-4/+4
Update the reset documentation's example code to match the new API for the hold and exit phase method APIs where they take a ResetType argument. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Luc Michel <luc.michel@amd.com> Message-id: 20240412160809.1260625-6-peter.maydell@linaro.org
2024-04-25hw, target: Add ResetType argument to hold and exit phase methodsPeter Maydell94-150/+150
We pass a ResetType argument to the Resettable class enter phase method, but we don't pass it to hold and exit, even though the callsites have it readily available. This means that if a device cared about the ResetType it would need to record it in the enter phase method to use later on. Pass the type to all three of the phase methods to avoid having to do that. Commit created with for dir in hw target include; do \ spatch --macro-file scripts/cocci-macro-file.h \ --sp-file scripts/coccinelle/reset-type.cocci \ --keep-comments --smpl-spacing --in-place \ --include-headers --dir $dir; done and no manual edits. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Luc Michel <luc.michel@amd.com> Message-id: 20240412160809.1260625-5-peter.maydell@linaro.org