cpus: Prefer cached CpuClass over CPU_GET_CLASS() macro

CpuState caches its CPUClass since commit 6fbdff87062
("cpu: cache CPUClass in CPUState for hot code paths"),
use it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250122093028.52416-5-philmd@linaro.org>

cpu-common.c

@@ -388,11 +388,10 @@ void process_queued_cpu_work(CPUState *cpu)
 int cpu_breakpoint_insert(CPUState *cpu, vaddr pc, int flags,
                           CPUBreakpoint **breakpoint)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
     CPUBreakpoint *bp;
 
-    if (cc->gdb_adjust_breakpoint) {
-        pc = cc->gdb_adjust_breakpoint(cpu, pc);
+    if (cpu->cc->gdb_adjust_breakpoint) {
+        pc = cpu->cc->gdb_adjust_breakpoint(cpu, pc);
     }
 
     bp = g_malloc(sizeof(*bp));
@@ -418,11 +417,10 @@ int cpu_breakpoint_insert(CPUState *cpu, vaddr pc, int flags,
 /* Remove a specific breakpoint.  */
 int cpu_breakpoint_remove(CPUState *cpu, vaddr pc, int flags)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
     CPUBreakpoint *bp;
 
-    if (cc->gdb_adjust_breakpoint) {
-        pc = cc->gdb_adjust_breakpoint(cpu, pc);
+    if (cpu->cc->gdb_adjust_breakpoint) {
+        pc = cpu->cc->gdb_adjust_breakpoint(cpu, pc);
     }
 
     QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) {

hw/core/cpu-common.c

@@ -40,9 +40,7 @@ CPUState *cpu_by_arch_id(int64_t id)
     CPUState *cpu;
 
     CPU_FOREACH(cpu) {
-        CPUClass *cc = CPU_GET_CLASS(cpu);
-
-        if (cc->get_arch_id(cpu) == id) {
+        if (cpu->cc->get_arch_id(cpu) == id) {
             return cpu;
         }
     }
@@ -101,11 +99,9 @@ static int cpu_common_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg)
 
 void cpu_dump_state(CPUState *cpu, FILE *f, int flags)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    if (cc->dump_state) {
+    if (cpu->cc->dump_state) {
         cpu_synchronize_state(cpu);
-        cc->dump_state(cpu, f, flags);
+        cpu->cc->dump_state(cpu, f, flags);
     }
 }
 
@@ -119,11 +115,10 @@ void cpu_reset(CPUState *cpu)
 static void cpu_common_reset_hold(Object *obj, ResetType type)
 {
     CPUState *cpu = CPU(obj);
-    CPUClass *cc = CPU_GET_CLASS(cpu);
 
     if (qemu_loglevel_mask(CPU_LOG_RESET)) {
         qemu_log("CPU Reset (CPU %d)\n", cpu->cpu_index);
-        log_cpu_state(cpu, cc->reset_dump_flags);
+        log_cpu_state(cpu, cpu->cc->reset_dump_flags);
     }
 
     cpu->interrupt_request = 0;

hw/core/cpu-system.c

@@ -33,10 +33,8 @@
 
 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);
+    if (cpu->cc->sysemu_ops->get_paging_enabled) {
+        return cpu->cc->sysemu_ops->get_paging_enabled(cpu);
     }
 
     return false;
@@ -45,10 +43,8 @@ bool cpu_paging_enabled(const CPUState *cpu)
 bool cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
                             Error **errp)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    if (cc->sysemu_ops->get_memory_mapping) {
-        return cc->sysemu_ops->get_memory_mapping(cpu, list, errp);
+    if (cpu->cc->sysemu_ops->get_memory_mapping) {
+        return cpu->cc->sysemu_ops->get_memory_mapping(cpu, list, errp);
     }
 
     error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
@@ -58,15 +54,15 @@ bool cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
 hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
                                      MemTxAttrs *attrs)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
     hwaddr paddr;
 
-    if (cc->sysemu_ops->get_phys_page_attrs_debug) {
-        paddr = cc->sysemu_ops->get_phys_page_attrs_debug(cpu, addr, attrs);
+    if (cpu->cc->sysemu_ops->get_phys_page_attrs_debug) {
+        paddr = cpu->cc->sysemu_ops->get_phys_page_attrs_debug(cpu, addr,
+                                                               attrs);
     } else {
         /* Fallback for CPUs which don't implement the _attrs_ hook */
         *attrs = MEMTXATTRS_UNSPECIFIED;
-        paddr = cc->sysemu_ops->get_phys_page_debug(cpu, addr);
+        paddr = cpu->cc->sysemu_ops->get_phys_page_debug(cpu, addr);
     }
     /* Indicate that this is a debug access. */
     attrs->debug = 1;
@@ -94,64 +90,53 @@ int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
 int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
                              void *opaque)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    if (!cc->sysemu_ops->write_elf32_qemunote) {
+    if (!cpu->cc->sysemu_ops->write_elf32_qemunote) {
         return 0;
     }
-    return (*cc->sysemu_ops->write_elf32_qemunote)(f, cpu, opaque);
+    return (*cpu->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) {
+    if (!cpu->cc->sysemu_ops->write_elf32_note) {
         return -1;
     }
-    return (*cc->sysemu_ops->write_elf32_note)(f, cpu, cpuid, opaque);
+    return (*cpu->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) {
+    if (!cpu->cc->sysemu_ops->write_elf64_qemunote) {
         return 0;
     }
-    return (*cc->sysemu_ops->write_elf64_qemunote)(f, cpu, opaque);
+    return (*cpu->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) {
+    if (!cpu->cc->sysemu_ops->write_elf64_note) {
         return -1;
     }
-    return (*cc->sysemu_ops->write_elf64_note)(f, cpu, cpuid, opaque);
+    return (*cpu->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);
+    if (cpu->cc->sysemu_ops->virtio_is_big_endian) {
+        return cpu->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);
+    if (cpu->cc->sysemu_ops->get_crash_info) {
+        res = cpu->cc->sysemu_ops->get_crash_info(cpu);
     }
     return res;
 }
@@ -300,10 +285,8 @@ void cpu_vmstate_register(CPUState *cpu)
 
 void cpu_vmstate_unregister(CPUState *cpu)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    if (cc->sysemu_ops->legacy_vmsd != NULL) {
-        vmstate_unregister(NULL, cc->sysemu_ops->legacy_vmsd, cpu);
+    if (cpu->cc->sysemu_ops->legacy_vmsd != NULL) {
+        vmstate_unregister(NULL, cpu->cc->sysemu_ops->legacy_vmsd, cpu);
     }
     if (qdev_get_vmsd(DEVICE(cpu)) == NULL) {
         vmstate_unregister(NULL, &vmstate_cpu_common, cpu);

include/hw/core/cpu.h

@@ -826,10 +826,8 @@ const char *parse_cpu_option(const char *cpu_option);
  */
 static inline bool cpu_has_work(CPUState *cpu)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    g_assert(cc->has_work);
-    return cc->has_work(cpu);
+    g_assert(cpu->cc->has_work);
+    return cpu->cc->has_work(cpu);
 }
 
 /**
@@ -968,9 +966,7 @@ void cpu_interrupt(CPUState *cpu, int mask);
  */
 static inline void cpu_set_pc(CPUState *cpu, vaddr addr)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    cc->set_pc(cpu, addr);
+    cpu->cc->set_pc(cpu, addr);
 }
 
 /**