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qemu/target-info-stub.c

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qemu: Introduce target_cpu_type() Introduce the target_cpu_type() helper to access the CPU_RESOLVING_TYPE target-specific definition from target-agnostic code. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20250417165430.58213-2-philmd@linaro.org>
2025-04-17 17:59:35 +02:00
/*
* QEMU target info stubs (target specific)
*
* Copyright (c) Linaro
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qemu/target-info.h"
qemu: Convert target_name() to TargetInfo API Have target_name() be a target-agnostic method, dispatching to a per-target TargetInfo singleton structure. By default a stub singleton is used. No logical change expected. Inspired-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250424222112.36194-3-philmd@linaro.org>
2025-03-23 12:47:37 +01:00
#include "qemu/target-info-impl.h"
target-info: introduce TargetInfo in QOM For the single-binary, we want to be able to retrieve at runtime the current target among the different ones available. A consequence is that we can't rely on existing target_info() definition since it will create a conflict once more than one target is available. To solve this, we add TargetInfo in QOM, with this hierarchy. We define one class "target-info-X" per target, that inherits from abstract class "target-info". Using concrete vs abstract class ensure we can easily filter "target-info-X" from all QOM types. Associated TargetInfo is directly set through class initialization, without relying on any instance. For user mode, we simply define target_info() like it was done previously. In this patch, we keep the same definition for system-mode also, and it will be replaced in next commits. We will introduce detection of target from QOM, so we need to make sure those types are registered early. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/qemu-devel/20260514172303.1484273-4-pierrick.bouvier@oss.qualcomm.com Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
2026-05-14 10:23:01 -07:00
#include "qemu/target-info-init.h"
include: move hw/boards.h to hw/core/ Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-11-27 08:37:19 +01:00
#include "hw/core/boards.h"
qemu: Introduce target_cpu_type() Introduce the target_cpu_type() helper to access the CPU_RESOLVING_TYPE target-specific definition from target-agnostic code. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20250417165430.58213-2-philmd@linaro.org>
2025-04-17 17:59:35 +02:00
#include "cpu.h"
target-info: Include 'exec/cpu-defs.h' explicitly The "exec/target_long.h" header is indirectly included, pulled via "cpu.h" -> "exec/cpu-defs.h". Include it explicitly otherwise we'd get when removing the latter: ../target-info-stub.c:39:23: error: use of undeclared identifier 'TARGET_PAGE_BITS' 39 | .page_bits_init = TARGET_PAGE_BITS, | ^ Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Message-Id: <20260313062055.2188-6-philmd@linaro.org>
2026-03-13 05:17:13 +01:00
#include "exec/cpu-defs.h"
target-info: Move TARGET_PAGE_BITS sanity check Move the check from page-vary-target.c to target-info-stub.c, in the process of removing page-vary-target.c entirely. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20260217095106.598486-4-richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2026-02-17 19:51:02 +10:00
#include "exec/page-vary.h"
qemu: Introduce target_cpu_type() Introduce the target_cpu_type() helper to access the CPU_RESOLVING_TYPE target-specific definition from target-agnostic code. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20250417165430.58213-2-philmd@linaro.org>
2025-04-17 17:59:35 +02:00
cpu-target: build compilation unit once for user/system Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20250730220519.1140447-2-pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-07-30 15:05:17 -07:00
/* Validate correct placement of CPUArchState. */
QEMU_BUILD_BUG_ON(offsetof(ArchCPU, parent_obj) != 0);
QEMU_BUILD_BUG_ON(offsetof(ArchCPU, env) != sizeof(CPUState));
target-info: Move TARGET_PAGE_BITS sanity check Move the check from page-vary-target.c to target-info-stub.c, in the process of removing page-vary-target.c entirely. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20260217095106.598486-4-richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2026-02-17 19:51:02 +10:00
/* Validate target page size, if invariant. */
#ifndef TARGET_PAGE_BITS_VARY
QEMU_BUILD_BUG_ON(TARGET_PAGE_BITS < TARGET_PAGE_BITS_MIN);
#endif
qemu: Convert target_name() to TargetInfo API Have target_name() be a target-agnostic method, dispatching to a per-target TargetInfo singleton structure. By default a stub singleton is used. No logical change expected. Inspired-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250424222112.36194-3-philmd@linaro.org>
2025-03-23 12:47:37 +01:00
static const TargetInfo target_info_stub = {
.target_name = TARGET_NAME,
target-info: Statically initialize target_arch Use TARGET_ARCH and token pasting to initialize target_arch from SYS_EMU_TARGET_*. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20260205030617.266625-4-richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2026-02-05 13:06:17 +10:00
.target_arch = glue(SYS_EMU_TARGET_, TARGET_ARCH),
qemu: Introduce target_long_bits() Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-03-23 13:20:24 +01:00
.long_bits = TARGET_LONG_BITS,
qemu/target_info: Add %target_cpu_type field to TargetInfo Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-04-29 20:18:03 +02:00
.cpu_type = CPU_RESOLVING_TYPE,
system/vl: Filter machine list available for a particular target binary Binaries can register a QOM type to filter their machines by filling their TargetInfo::machine_typename field. This can be used by example by main() -> machine_help_func() to filter the machines list. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2025-03-23 22:46:34 +01:00
.machine_typename = TYPE_MACHINE,
qemu/target-info: Add target_endian_mode() target_endian_mode() returns the default endianness (QAPI type) of a target. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250708215320.70426-5-philmd@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-07-08 23:53:15 +02:00
.endianness = TARGET_BIG_ENDIAN ? ENDIAN_MODE_BIG : ENDIAN_MODE_LITTLE,
target-info: Add page_bits_{init,vary} Add two fields that will hold TARGET_PAGE_BITS, TARGET_PAGE_BITS_VARY, TARGET_PAGE_BITS_LEGACY. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20260217095106.598486-3-richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2026-02-17 19:51:01 +10:00
#ifdef TARGET_PAGE_BITS_VARY
.page_bits_vary = true,
# ifdef TARGET_PAGE_BITS_LEGACY
.page_bits_init = TARGET_PAGE_BITS_LEGACY,
# endif
#else
.page_bits_vary = false,
.page_bits_init = TARGET_PAGE_BITS,
#endif
qemu: Convert target_name() to TargetInfo API Have target_name() be a target-agnostic method, dispatching to a per-target TargetInfo singleton structure. By default a stub singleton is used. No logical change expected. Inspired-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250424222112.36194-3-philmd@linaro.org>
2025-03-23 12:47:37 +01:00
};
target-info: introduce TargetInfo in QOM For the single-binary, we want to be able to retrieve at runtime the current target among the different ones available. A consequence is that we can't rely on existing target_info() definition since it will create a conflict once more than one target is available. To solve this, we add TargetInfo in QOM, with this hierarchy. We define one class "target-info-X" per target, that inherits from abstract class "target-info". Using concrete vs abstract class ensure we can easily filter "target-info-X" from all QOM types. Associated TargetInfo is directly set through class initialization, without relying on any instance. For user mode, we simply define target_info() like it was done previously. In this patch, we keep the same definition for system-mode also, and it will be replaced in next commits. We will introduce detection of target from QOM, so we need to make sure those types are registered early. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/qemu-devel/20260514172303.1484273-4-pierrick.bouvier@oss.qualcomm.com Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
2026-05-14 10:23:01 -07:00
target_info_init(target_info_stub)
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