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Adjust types for some memory access functions.

Browse source 
Reduce inclusion of tcg headers.
 Fix watchpoints vs replay.
 Fix tcg/aarch64 roli expansion.
 Introduce SysemuCPUOps structure.
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Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210526' into staging

Adjust types for some memory access functions.
Reduce inclusion of tcg headers.
Fix watchpoints vs replay.
Fix tcg/aarch64 roli expansion.
Introduce SysemuCPUOps structure.

# gpg: Signature made Thu 27 May 2021 00:43:54 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

* remotes/rth-gitlab/tags/pull-tcg-20210526: (31 commits)
  hw/core: Constify TCGCPUOps
  target/mips: Fold jazz behaviour into mips_cpu_do_transaction_failed
  cpu: Move CPUClass::get_paging_enabled to SysemuCPUOps
  cpu: Move CPUClass::get_memory_mapping to SysemuCPUOps
  cpu: Move CPUClass::get_phys_page_debug to SysemuCPUOps
  cpu: Move CPUClass::asidx_from_attrs to SysemuCPUOps
  cpu: Move CPUClass::write_elf* to SysemuCPUOps
  cpu: Move CPUClass::get_crash_info to SysemuCPUOps
  cpu: Move CPUClass::virtio_is_big_endian to SysemuCPUOps
  cpu: Move CPUClass::vmsd to SysemuCPUOps
  cpu: Introduce SysemuCPUOps structure
  cpu: Move AVR target vmsd field from CPUClass to DeviceClass
  cpu: Rename CPUClass vmsd -> legacy_vmsd
  cpu: Assert DeviceClass::vmsd is NULL on user emulation
  cpu: Directly use get_memory_mapping() fallback handlers in place
  cpu: Directly use get_paging_enabled() fallback handlers in place
  cpu: Directly use cpu_write_elf*() fallback handlers in place
  cpu: Introduce cpu_virtio_is_big_endian()
  cpu: Un-inline cpu_get_phys_page_debug and cpu_asidx_from_attrs
  cpu: Split as cpu-common / cpu-sysemu
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-05-28 16:25:20 +01:00
commit 62c0ac5041
53 changed files with 602 additions and 406 deletions
Download patch file Download diff file Expand all files Collapse all files

94
include/hw/core/cpu.h
View file

@ -80,6 +80,9 @@ struct TCGCPUOps;
/* see accel-cpu.h */
struct AccelCPUClass;
/* see sysemu-cpu-ops.h */
struct SysemuCPUOps;
/**
* CPUClass:
* @class_by_name: Callback to map -cpu command line model name to an
@ -87,16 +90,10 @@ struct AccelCPUClass;
* @parse_features: Callback to parse command line arguments.
* @reset_dump_flags: #CPUDumpFlags to use for reset logging.
* @has_work: Callback for checking if there is work to do.
* @virtio_is_big_endian: Callback to return %true if a CPU which supports
* runtime configurable endianness is currently big-endian. Non-configurable
* CPUs can use the default implementation of this method. This method should
* not be used by any callers other than the pre-1.0 virtio devices.
* @memory_rw_debug: Callback for GDB memory access.
* @dump_state: Callback for dumping state.
* @dump_statistics: Callback for dumping statistics.
* @get_arch_id: Callback for getting architecture-dependent CPU ID.
* @get_paging_enabled: Callback for inquiring whether paging is enabled.
* @get_memory_mapping: Callback for obtaining the memory mappings.
* @set_pc: Callback for setting the Program Counter register. This
* should have the semantics used by the target architecture when
* setting the PC from a source such as an ELF file entry point;
@ -105,24 +102,8 @@ struct AccelCPUClass;
* If the target behaviour here is anything other than "set
* the PC register to the value passed in" then the target must
* also implement the synchronize_from_tb hook.
* @get_phys_page_debug: Callback for obtaining a physical address.
* @get_phys_page_attrs_debug: Callback for obtaining a physical address and the
* associated memory transaction attributes to use for the access.
* CPUs which use memory transaction attributes should implement this
* instead of get_phys_page_debug.
* @asidx_from_attrs: Callback to return the CPU AddressSpace to use for
* a memory access with the specified memory transaction attributes.
* @gdb_read_register: Callback for letting GDB read a register.
* @gdb_write_register: Callback for letting GDB write a register.
* @write_elf64_note: Callback for writing a CPU-specific ELF note to a
* 64-bit VM coredump.
* @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF
* note to a 32-bit VM coredump.
* @write_elf32_note: Callback for writing a CPU-specific ELF note to a
* 32-bit VM coredump.
* @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF
* note to a 32-bit VM coredump.
* @vmsd: State description for migration.
* @gdb_num_core_regs: Number of core registers accessible to GDB.
* @gdb_core_xml_file: File name for core registers GDB XML description.
* @gdb_stop_before_watchpoint: Indicates whether GDB expects the CPU to stop
@ -150,34 +131,15 @@ struct CPUClass {
int reset_dump_flags;
bool (*has_work)(CPUState *cpu);
bool (*virtio_is_big_endian)(CPUState *cpu);
int (*memory_rw_debug)(CPUState *cpu, vaddr addr,
uint8_t *buf, int len, bool is_write);
void (*dump_state)(CPUState *cpu, FILE *, int flags);
GuestPanicInformation* (*get_crash_info)(CPUState *cpu);
void (*dump_statistics)(CPUState *cpu, int flags);
int64_t (*get_arch_id)(CPUState *cpu);
bool (*get_paging_enabled)(const CPUState *cpu);
void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list,
Error **errp);
void (*set_pc)(CPUState *cpu, vaddr value);
hwaddr (*get_phys_page_debug)(CPUState *cpu, vaddr addr);
hwaddr (*get_phys_page_attrs_debug)(CPUState *cpu, vaddr addr,
MemTxAttrs *attrs);
int (*asidx_from_attrs)(CPUState *cpu, MemTxAttrs attrs);
int (*gdb_read_register)(CPUState *cpu, GByteArray *buf, int reg);
int (*gdb_write_register)(CPUState *cpu, uint8_t *buf, int reg);
int (*write_elf64_note)(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque);
int (*write_elf64_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque);
int (*write_elf32_note)(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque);
int (*write_elf32_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque);
const VMStateDescription *vmsd;
const char *gdb_core_xml_file;
gchar * (*gdb_arch_name)(CPUState *cpu);
const char * (*gdb_get_dynamic_xml)(CPUState *cpu, const char *xmlname);
@ -190,8 +152,11 @@ struct CPUClass {
bool gdb_stop_before_watchpoint;
struct AccelCPUClass *accel_cpu;
/* when system emulation is not available, this pointer is NULL */
const struct SysemuCPUOps *sysemu_ops;
/* when TCG is not available, this pointer is NULL */
struct TCGCPUOps *tcg_ops;
const struct TCGCPUOps *tcg_ops;
/*
* if not NULL, this is called in order for the CPUClass to initialize
@ -593,18 +558,8 @@ void cpu_dump_statistics(CPUState *cpu, int flags);
*
* Returns: Corresponding physical page address or -1 if no page found.
*/
static inline hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
MemTxAttrs *attrs)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (cc->get_phys_page_attrs_debug) {
return cc->get_phys_page_attrs_debug(cpu, addr, attrs);
}
/* Fallback for CPUs which don't implement the _attrs_ hook */
*attrs = MEMTXATTRS_UNSPECIFIED;
return cc->get_phys_page_debug(cpu, addr);
}
hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
MemTxAttrs *attrs);
/**
* cpu_get_phys_page_debug:
@ -616,12 +571,7 @@ static inline hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
*
* Returns: Corresponding physical page address or -1 if no page found.
*/
static inline hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr)
{
MemTxAttrs attrs = {};
return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs);
}
hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
/** cpu_asidx_from_attrs:
* @cpu: CPU
@ -630,17 +580,16 @@ static inline hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr)
* Returns the address space index specifying the CPU AddressSpace
* to use for a memory access with the given transaction attributes.
*/
static inline int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
int ret = 0;
int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs);
if (cc->asidx_from_attrs) {
ret = cc->asidx_from_attrs(cpu, attrs);
assert(ret < cpu->num_ases && ret >= 0);
}
return ret;
}
/**
* cpu_virtio_is_big_endian:
* @cpu: CPU
* Returns %true if a CPU which supports runtime configurable endianness
* is currently big-endian.
*/
bool cpu_virtio_is_big_endian(CPUState *cpu);
#endif /* CONFIG_USER_ONLY */
@ -1081,10 +1030,8 @@ bool target_words_bigendian(void);
#ifdef NEED_CPU_H
#ifdef CONFIG_SOFTMMU
extern const VMStateDescription vmstate_cpu_common;
#else
#define vmstate_cpu_common vmstate_dummy
#endif
#define VMSTATE_CPU() { \
.name = "parent_obj", \
@ -1093,6 +1040,7 @@ extern const VMStateDescription vmstate_cpu_common;
.flags = VMS_STRUCT, \
.offset = 0, \
}
#endif /* CONFIG_SOFTMMU */
#endif /* NEED_CPU_H */

92
include/hw/core/sysemu-cpu-ops.h Normal file
View file

@ -0,0 +1,92 @@
/*
* CPU operations specific to system emulation
*
* Copyright (c) 2012 SUSE LINUX Products GmbH
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef SYSEMU_CPU_OPS_H
#define SYSEMU_CPU_OPS_H
#include "hw/core/cpu.h"
/*
* struct SysemuCPUOps: System operations specific to a CPU class
*/
typedef struct SysemuCPUOps {
/**
* @get_memory_mapping: Callback for obtaining the memory mappings.
*/
void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list,
Error **errp);
/**
* @get_paging_enabled: Callback for inquiring whether paging is enabled.
*/
bool (*get_paging_enabled)(const CPUState *cpu);
/**
* @get_phys_page_debug: Callback for obtaining a physical address.
*/
hwaddr (*get_phys_page_debug)(CPUState *cpu, vaddr addr);
/**
* @get_phys_page_attrs_debug: Callback for obtaining a physical address
* and the associated memory transaction attributes to use for the
* access.
* CPUs which use memory transaction attributes should implement this
* instead of get_phys_page_debug.
*/
hwaddr (*get_phys_page_attrs_debug)(CPUState *cpu, vaddr addr,
MemTxAttrs *attrs);
/**
* @asidx_from_attrs: Callback to return the CPU AddressSpace to use for
* a memory access with the specified memory transaction attributes.
*/
int (*asidx_from_attrs)(CPUState *cpu, MemTxAttrs attrs);
/**
* @get_crash_info: Callback for reporting guest crash information in
* GUEST_PANICKED events.
*/
GuestPanicInformation* (*get_crash_info)(CPUState *cpu);
/**
* @write_elf32_note: Callback for writing a CPU-specific ELF note to a
* 32-bit VM coredump.
*/
int (*write_elf32_note)(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque);
/**
* @write_elf64_note: Callback for writing a CPU-specific ELF note to a
* 64-bit VM coredump.
*/
int (*write_elf64_note)(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque);
/**
* @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF
* note to a 32-bit VM coredump.
*/
int (*write_elf32_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque);
/**
* @write_elf64_qemunote: Callback for writing a CPU- and QEMU-specific ELF
* note to a 64-bit VM coredump.
*/
int (*write_elf64_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque);
/**
* @virtio_is_big_endian: Callback to return %true if a CPU which supports
* runtime configurable endianness is currently big-endian.
* Non-configurable CPUs can use the default implementation of this method.
* This method should not be used by any callers other than the pre-1.0
* virtio devices.
*/
bool (*virtio_is_big_endian)(CPUState *cpu);
/**
* @legacy_vmsd: Legacy state for migration.
* Do not use in new targets, use #DeviceClass::vmsd instead.
*/
const VMStateDescription *legacy_vmsd;
} SysemuCPUOps;
#endif /* SYSEMU_CPU_OPS_H */