From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 29 Aug 2025 14:53:05 +0000 (+0200)
Subject: bsd-user, linux-user: introduce qemu_process_cpu_events
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=758e5de501f78d4ef53a43e0c5a4783cd807b5be;p=thirdparty%2Fqemu.git

bsd-user, linux-user: introduce qemu_process_cpu_events

Add a user-mode emulation version of the function.  More will be
added later, for now it is just process_queued_cpu_work.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index 3c072fd868f..65f5da6c506 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -52,6 +52,11 @@ void qemu_cpu_kick(CPUState *cpu)
     tcg_kick_vcpu_thread(cpu);
 }
 
+void qemu_process_cpu_events(CPUState *cpu)
+{
+    process_queued_cpu_work(cpu);
+}
+
 /*
  * Adjust the pc to pass to cpu_restore_state; return the memop type.
  */
diff --git a/bsd-user/aarch64/target_arch_cpu.h b/bsd-user/aarch64/target_arch_cpu.h
index 87fbf6d6775..15df84fda21 100644
--- a/bsd-user/aarch64/target_arch_cpu.h
+++ b/bsd-user/aarch64/target_arch_cpu.h
@@ -54,7 +54,7 @@ static inline G_NORETURN void target_cpu_loop(CPUARMState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_SWI:
diff --git a/bsd-user/arm/target_arch_cpu.h b/bsd-user/arm/target_arch_cpu.h
index bc2eaa0bf4e..9a952ef0ff7 100644
--- a/bsd-user/arm/target_arch_cpu.h
+++ b/bsd-user/arm/target_arch_cpu.h
@@ -46,7 +46,7 @@ static inline G_NORETURN void target_cpu_loop(CPUARMState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
         switch (trapnr) {
         case EXCP_UDEF:
         case EXCP_NOCP:
diff --git a/bsd-user/i386/target_arch_cpu.h b/bsd-user/i386/target_arch_cpu.h
index 5d4c931decd..f147d5b6f85 100644
--- a/bsd-user/i386/target_arch_cpu.h
+++ b/bsd-user/i386/target_arch_cpu.h
@@ -113,7 +113,7 @@ static inline G_NORETURN void target_cpu_loop(CPUX86State *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case 0x80: {
diff --git a/bsd-user/riscv/target_arch_cpu.h b/bsd-user/riscv/target_arch_cpu.h
index ef92f004803..ad428d0263d 100644
--- a/bsd-user/riscv/target_arch_cpu.h
+++ b/bsd-user/riscv/target_arch_cpu.h
@@ -49,7 +49,7 @@ static inline G_NORETURN void target_cpu_loop(CPURISCVState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         signo = 0;
 
diff --git a/bsd-user/x86_64/target_arch_cpu.h b/bsd-user/x86_64/target_arch_cpu.h
index f82042e30af..1fa71d87f12 100644
--- a/bsd-user/x86_64/target_arch_cpu.h
+++ b/bsd-user/x86_64/target_arch_cpu.h
@@ -121,7 +121,7 @@ static inline G_NORETURN void target_cpu_loop(CPUX86State *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_SYSCALL:
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 6075be0b59f..fb788ca1107 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -1145,6 +1145,15 @@ AddressSpace *cpu_get_address_space(CPUState *cpu, int asidx);
 G_NORETURN void cpu_abort(CPUState *cpu, const char *fmt, ...)
     G_GNUC_PRINTF(2, 3);
 
+/**
+ * qemu_process_cpu_events:
+ * @cpu: CPU that left the execution loop
+ *
+ * Perform accelerator-independent work after the CPU has left
+ * the inner execution loop.
+ */
+void qemu_process_cpu_events(CPUState *cpu);
+
 /* $(top_srcdir)/cpu.c */
 void cpu_class_init_props(DeviceClass *dc);
 void cpu_exec_class_post_init(CPUClass *cc);
diff --git a/include/system/cpus.h b/include/system/cpus.h
index 4aebec48705..508444ccf1c 100644
--- a/include/system/cpus.h
+++ b/include/system/cpus.h
@@ -18,7 +18,6 @@ bool cpu_thread_is_idle(CPUState *cpu);
 bool all_cpu_threads_idle(void);
 bool cpu_can_run(CPUState *cpu);
 void qemu_process_cpu_events_common(CPUState *cpu);
-void qemu_process_cpu_events(CPUState *cpu);
 void cpu_thread_signal_created(CPUState *cpu);
 void cpu_thread_signal_destroyed(CPUState *cpu);
 void cpu_handle_guest_debug(CPUState *cpu);
diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c
index 4c4921152e8..f6b498c6c43 100644
--- a/linux-user/aarch64/cpu_loop.c
+++ b/linux-user/aarch64/cpu_loop.c
@@ -38,7 +38,7 @@ void cpu_loop(CPUARMState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_SWI:
diff --git a/linux-user/alpha/cpu_loop.c b/linux-user/alpha/cpu_loop.c
index 728b64906d9..bb8346b5094 100644
--- a/linux-user/alpha/cpu_loop.c
+++ b/linux-user/alpha/cpu_loop.c
@@ -35,7 +35,7 @@ void cpu_loop(CPUAlphaState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_RESET:
diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c
index 9aeb9b0087f..cd89b7d6f5e 100644
--- a/linux-user/arm/cpu_loop.c
+++ b/linux-user/arm/cpu_loop.c
@@ -295,7 +295,7 @@ void cpu_loop(CPUARMState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch(trapnr) {
         case EXCP_UDEF:
diff --git a/linux-user/hexagon/cpu_loop.c b/linux-user/hexagon/cpu_loop.c
index 25c97edcaef..1941f4c9c16 100644
--- a/linux-user/hexagon/cpu_loop.c
+++ b/linux-user/hexagon/cpu_loop.c
@@ -36,7 +36,7 @@ void cpu_loop(CPUHexagonState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_INTERRUPT:
diff --git a/linux-user/hppa/cpu_loop.c b/linux-user/hppa/cpu_loop.c
index 3af50653bb7..356cb48acc3 100644
--- a/linux-user/hppa/cpu_loop.c
+++ b/linux-user/hppa/cpu_loop.c
@@ -119,7 +119,7 @@ void cpu_loop(CPUHPPAState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_SYSCALL:
diff --git a/linux-user/i386/cpu_loop.c b/linux-user/i386/cpu_loop.c
index 7b2d8b03d84..f3f58576af5 100644
--- a/linux-user/i386/cpu_loop.c
+++ b/linux-user/i386/cpu_loop.c
@@ -214,7 +214,7 @@ void cpu_loop(CPUX86State *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch(trapnr) {
         case 0x80:
diff --git a/linux-user/loongarch64/cpu_loop.c b/linux-user/loongarch64/cpu_loop.c
index a0a4cbb7cc3..26a5ce3a936 100644
--- a/linux-user/loongarch64/cpu_loop.c
+++ b/linux-user/loongarch64/cpu_loop.c
@@ -27,7 +27,7 @@ void cpu_loop(CPULoongArchState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_INTERRUPT:
diff --git a/linux-user/m68k/cpu_loop.c b/linux-user/m68k/cpu_loop.c
index aca0bf23dc6..2c9f628241f 100644
--- a/linux-user/m68k/cpu_loop.c
+++ b/linux-user/m68k/cpu_loop.c
@@ -33,7 +33,7 @@ void cpu_loop(CPUM68KState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch(trapnr) {
         case EXCP_ILLEGAL:
diff --git a/linux-user/microblaze/cpu_loop.c b/linux-user/microblaze/cpu_loop.c
index d8277961c73..78506ab23d9 100644
--- a/linux-user/microblaze/cpu_loop.c
+++ b/linux-user/microblaze/cpu_loop.c
@@ -32,7 +32,7 @@ void cpu_loop(CPUMBState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_INTERRUPT:
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index e67b8a2e463..2365de1de1a 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -74,7 +74,7 @@ void cpu_loop(CPUMIPSState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch(trapnr) {
         case EXCP_SYSCALL:
diff --git a/linux-user/openrisc/cpu_loop.c b/linux-user/openrisc/cpu_loop.c
index 8c72347a99a..2167d880d55 100644
--- a/linux-user/openrisc/cpu_loop.c
+++ b/linux-user/openrisc/cpu_loop.c
@@ -33,7 +33,7 @@ void cpu_loop(CPUOpenRISCState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_SYSCALL:
diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index 22885ffd906..b0b0cb14b41 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -77,7 +77,7 @@ void cpu_loop(CPUPPCState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         arch_interrupt = true;
         switch (trapnr) {
diff --git a/linux-user/riscv/cpu_loop.c b/linux-user/riscv/cpu_loop.c
index b3162815320..ce542540c28 100644
--- a/linux-user/riscv/cpu_loop.c
+++ b/linux-user/riscv/cpu_loop.c
@@ -36,7 +36,7 @@ void cpu_loop(CPURISCVState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_INTERRUPT:
diff --git a/linux-user/s390x/cpu_loop.c b/linux-user/s390x/cpu_loop.c
index 49e44548f85..4929b32e1fc 100644
--- a/linux-user/s390x/cpu_loop.c
+++ b/linux-user/s390x/cpu_loop.c
@@ -64,7 +64,7 @@ void cpu_loop(CPUS390XState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case EXCP_INTERRUPT:
diff --git a/linux-user/sh4/cpu_loop.c b/linux-user/sh4/cpu_loop.c
index 259ea1cc8bb..0c9d7e9c46b 100644
--- a/linux-user/sh4/cpu_loop.c
+++ b/linux-user/sh4/cpu_loop.c
@@ -34,7 +34,7 @@ void cpu_loop(CPUSH4State *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case 0x160:
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 7d30cd1ff22..7391e2add8d 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -220,7 +220,7 @@ void cpu_loop (CPUSPARCState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case TARGET_TT_SYSCALL:
diff --git a/linux-user/xtensa/cpu_loop.c b/linux-user/xtensa/cpu_loop.c
index 43a194fc4a4..a0ff10eff82 100644
--- a/linux-user/xtensa/cpu_loop.c
+++ b/linux-user/xtensa/cpu_loop.c
@@ -133,7 +133,7 @@ void cpu_loop(CPUXtensaState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         env->sregs[PS] &= ~PS_EXCM;
         switch (trapnr) {