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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

116
hw/core/cpu.c → hw/core/cpu-common.c
View file

@ -34,7 +34,6 @@
#include "hw/qdev-properties.h"
#include "trace/trace-root.h"
#include "qemu/plugin.h"
#include "sysemu/hw_accel.h"
CPUState *cpu_by_arch_id(int64_t id)
{
@ -67,33 +66,6 @@ CPUState *cpu_create(const char *typename)
return cpu;
}
bool cpu_paging_enabled(const CPUState *cpu)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
return cc->get_paging_enabled(cpu);
}
static bool cpu_common_get_paging_enabled(const CPUState *cpu)
{
return false;
}
void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
Error **errp)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
cc->get_memory_mapping(cpu, list, errp);
}
static void cpu_common_get_memory_mapping(CPUState *cpu,
MemoryMappingList *list,
Error **errp)
{
error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
}
/* Resetting the IRQ comes from across the code base so we take the
* BQL here if we need to. cpu_interrupt assumes it is held.*/
void cpu_reset_interrupt(CPUState *cpu, int mask)
@ -117,65 +89,6 @@ void cpu_exit(CPUState *cpu)
qatomic_set(&cpu->icount_decr_ptr->u16.high, -1);
}
int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
return (*cc->write_elf32_qemunote)(f, cpu, opaque);
}
static int cpu_common_write_elf32_qemunote(WriteCoreDumpFunction f,
CPUState *cpu, void *opaque)
{
return 0;
}
int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
return (*cc->write_elf32_note)(f, cpu, cpuid, opaque);
}
static int cpu_common_write_elf32_note(WriteCoreDumpFunction f,
CPUState *cpu, int cpuid,
void *opaque)
{
return -1;
}
int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
return (*cc->write_elf64_qemunote)(f, cpu, opaque);
}
static int cpu_common_write_elf64_qemunote(WriteCoreDumpFunction f,
CPUState *cpu, void *opaque)
{
return 0;
}
int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
return (*cc->write_elf64_note)(f, cpu, cpuid, opaque);
}
static int cpu_common_write_elf64_note(WriteCoreDumpFunction f,
CPUState *cpu, int cpuid,
void *opaque)
{
return -1;
}
static int cpu_common_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
{
return 0;
@ -186,28 +99,6 @@ static int cpu_common_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg)
return 0;
}
static bool cpu_common_virtio_is_big_endian(CPUState *cpu)
{
return target_words_bigendian();
}
/*
* XXX the following #if is always true because this is a common_ss
* module, so target CONFIG_* is never defined.
*/
#if !defined(CONFIG_USER_ONLY)
GuestPanicInformation *cpu_get_crash_info(CPUState *cpu)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
GuestPanicInformation *res = NULL;
if (cc->get_crash_info) {
res = cc->get_crash_info(cpu);
}
return res;
}
#endif
void cpu_dump_state(CPUState *cpu, FILE *f, int flags)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
@ -398,15 +289,8 @@ static void cpu_class_init(ObjectClass *klass, void *data)
k->parse_features = cpu_common_parse_features;
k->get_arch_id = cpu_common_get_arch_id;
k->has_work = cpu_common_has_work;
k->get_paging_enabled = cpu_common_get_paging_enabled;
k->get_memory_mapping = cpu_common_get_memory_mapping;
k->write_elf32_qemunote = cpu_common_write_elf32_qemunote;
k->write_elf32_note = cpu_common_write_elf32_note;
k->write_elf64_qemunote = cpu_common_write_elf64_qemunote;
k->write_elf64_note = cpu_common_write_elf64_note;
k->gdb_read_register = cpu_common_gdb_read_register;
k->gdb_write_register = cpu_common_gdb_write_register;
k->virtio_is_big_endian = cpu_common_virtio_is_big_endian;
set_bit(DEVICE_CATEGORY_CPU, dc->categories);
dc->realize = cpu_common_realizefn;
dc->unrealize = cpu_common_unrealizefn;

145
hw/core/cpu-sysemu.c Normal file
View file

@ -0,0 +1,145 @@
/*
* QEMU CPU model (system emulation specific)
*
* Copyright (c) 2012-2014 SUSE LINUX Products GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see
* <http://www.gnu.org/licenses/gpl-2.0.html>
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/core/cpu.h"
#include "hw/core/sysemu-cpu-ops.h"
bool cpu_paging_enabled(const CPUState *cpu)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (cc->sysemu_ops->get_paging_enabled) {
return cc->sysemu_ops->get_paging_enabled(cpu);
}
return false;
}
void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
Error **errp)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (cc->sysemu_ops->get_memory_mapping) {
cc->sysemu_ops->get_memory_mapping(cpu, list, errp);
return;
}
error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
}
hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
MemTxAttrs *attrs)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (cc->sysemu_ops->get_phys_page_attrs_debug) {
return cc->sysemu_ops->get_phys_page_attrs_debug(cpu, addr, attrs);
}
/* Fallback for CPUs which don't implement the _attrs_ hook */
*attrs = MEMTXATTRS_UNSPECIFIED;
return cc->sysemu_ops->get_phys_page_debug(cpu, addr);
}
hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr)
{
MemTxAttrs attrs = {};
return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs);
}
int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
int ret = 0;
if (cc->sysemu_ops->asidx_from_attrs) {
ret = cc->sysemu_ops->asidx_from_attrs(cpu, attrs);
assert(ret < cpu->num_ases && ret >= 0);
}
return ret;
}
int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (!cc->sysemu_ops->write_elf32_qemunote) {
return 0;
}
return (*cc->sysemu_ops->write_elf32_qemunote)(f, cpu, opaque);
}
int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (!cc->sysemu_ops->write_elf32_note) {
return -1;
}
return (*cc->sysemu_ops->write_elf32_note)(f, cpu, cpuid, opaque);
}
int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (!cc->sysemu_ops->write_elf64_qemunote) {
return 0;
}
return (*cc->sysemu_ops->write_elf64_qemunote)(f, cpu, opaque);
}
int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (!cc->sysemu_ops->write_elf64_note) {
return -1;
}
return (*cc->sysemu_ops->write_elf64_note)(f, cpu, cpuid, opaque);
}
bool cpu_virtio_is_big_endian(CPUState *cpu)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
if (cc->sysemu_ops->virtio_is_big_endian) {
return cc->sysemu_ops->virtio_is_big_endian(cpu);
}
return target_words_bigendian();
}
GuestPanicInformation *cpu_get_crash_info(CPUState *cpu)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
GuestPanicInformation *res = NULL;
if (cc->sysemu_ops->get_crash_info) {
res = cc->sysemu_ops->get_crash_info(cpu);
}
return res;
}

3
hw/core/meson.build
View file

@ -13,7 +13,7 @@ hwcore_files = files(
'qdev-clock.c',
)
common_ss.add(files('cpu.c'))
common_ss.add(files('cpu-common.c'))
common_ss.add(when: 'CONFIG_FITLOADER', if_true: files('loader-fit.c'))
common_ss.add(when: 'CONFIG_GENERIC_LOADER', if_true: files('generic-loader.c'))
common_ss.add(when: ['CONFIG_GUEST_LOADER', fdt], if_true: files('guest-loader.c'))
@ -25,6 +25,7 @@ common_ss.add(when: 'CONFIG_SPLIT_IRQ', if_true: files('split-irq.c'))
common_ss.add(when: 'CONFIG_XILINX_AXI', if_true: files('stream.c'))
softmmu_ss.add(files(
'cpu-sysemu.c',
'fw-path-provider.c',
'loader.c',
'machine-hmp-cmds.c',