[RFC PATCH v2 11/48] accel: Move supports_guest_debug() declaration to AccelClass

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

AccelOpsClass is for methods dealing with vCPUs.
When only dealing with AccelState, AccelClass is sufficient.

In order to have AccelClass methods instrospect their state,
we need to pass AccelState by argument.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/qemu/accel.h       | 1 +
 include/system/accel-ops.h | 1 -
 include/system/hvf.h       | 2 +-
 accel/hvf/hvf-accel-ops.c  | 2 +-
 accel/tcg/tcg-accel-ops.c  | 6 ------
 accel/tcg/tcg-all.c        | 6 ++++++
 gdbstub/system.c           | 7 ++++---
 target/arm/hvf/hvf.c       | 2 +-
 target/i386/hvf/hvf.c      | 2 +-
 9 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/include/qemu/accel.h b/include/qemu/accel.h
index 2831e61de08..b807cca6678 100644
--- a/include/qemu/accel.h
+++ b/include/qemu/accel.h
@@ -50,6 +50,7 @@ typedef struct AccelClass {
                        hwaddr start_addr, hwaddr size);
 
     /* gdbstub related hooks */
+    bool (*supports_guest_debug)(AccelState *as);
     int (*gdbstub_supported_sstep_flags)(AccelState *as);
 
     bool *allowed;
diff --git a/include/system/accel-ops.h b/include/system/accel-ops.h
index a863fe59388..51faf47ac69 100644
--- a/include/system/accel-ops.h
+++ b/include/system/accel-ops.h
@@ -65,7 +65,6 @@ struct AccelOpsClass {
     int64_t (*get_elapsed_ticks)(void);
 
     /* gdbstub hooks */
-    bool (*supports_guest_debug)(void);
     int (*update_guest_debug)(CPUState *cpu);
     int (*insert_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len);
     int (*remove_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len);
diff --git a/include/system/hvf.h b/include/system/hvf.h
index 8c4409a13f1..7b9384d816c 100644
--- a/include/system/hvf.h
+++ b/include/system/hvf.h
@@ -71,7 +71,7 @@ void hvf_arch_update_guest_debug(CPUState *cpu);
 /*
  * Return whether the guest supports debugging.
  */
-bool hvf_arch_supports_guest_debug(void);
+bool hvf_arch_supports_guest_debug(AccelState *as);
 
 bool hvf_arch_cpu_realize(CPUState *cpu, Error **errp);
 
diff --git a/accel/hvf/hvf-accel-ops.c b/accel/hvf/hvf-accel-ops.c
index 3797cab2bf6..45dd4baa321 100644
--- a/accel/hvf/hvf-accel-ops.c
+++ b/accel/hvf/hvf-accel-ops.c
@@ -364,6 +364,7 @@ static void hvf_accel_class_init(ObjectClass *oc, const void *data)
     ac->name = "HVF";
     ac->init_machine = hvf_accel_init;
     ac->allowed = &hvf_allowed;
+    ac->supports_guest_debug = hvf_arch_supports_guest_debug;
     ac->gdbstub_supported_sstep_flags = hvf_gdbstub_sstep_flags;
 }
 
@@ -600,7 +601,6 @@ static void hvf_accel_ops_class_init(ObjectClass *oc, const void *data)
     ops->remove_breakpoint = hvf_remove_breakpoint;
     ops->remove_all_breakpoints = hvf_remove_all_breakpoints;
     ops->update_guest_debug = hvf_update_guest_debug;
-    ops->supports_guest_debug = hvf_arch_supports_guest_debug;
 };
 static const TypeInfo hvf_accel_ops_type = {
     .name = ACCEL_OPS_NAME("hvf"),
diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c
index 37b4b21f882..07b1ec4ea50 100644
--- a/accel/tcg/tcg-accel-ops.c
+++ b/accel/tcg/tcg-accel-ops.c
@@ -106,11 +106,6 @@ void tcg_handle_interrupt(CPUState *cpu, int mask)
     }
 }
 
-static bool tcg_supports_guest_debug(void)
-{
-    return true;
-}
-
 /* Translate GDB watchpoint type to a flags value for cpu_watchpoint_* */
 static inline int xlat_gdb_type(CPUState *cpu, int gdbtype)
 {
@@ -218,7 +213,6 @@ static void tcg_accel_ops_init(AccelClass *ac)
     }
 
     ops->cpu_reset_hold = tcg_cpu_reset_hold;
-    ops->supports_guest_debug = tcg_supports_guest_debug;
     ops->insert_breakpoint = tcg_insert_breakpoint;
     ops->remove_breakpoint = tcg_remove_breakpoint;
     ops->remove_all_breakpoints = tcg_remove_all_breakpoints;
diff --git a/accel/tcg/tcg-all.c b/accel/tcg/tcg-all.c
index 4eb49c6407d..164bba41ed9 100644
--- a/accel/tcg/tcg-all.c
+++ b/accel/tcg/tcg-all.c
@@ -219,6 +219,11 @@ static void tcg_set_one_insn_per_tb(Object *obj, bool value, Error **errp)
     qatomic_set(&one_insn_per_tb, value);
 }
 
+static bool tcg_supports_guest_debug(AccelState *as)
+{
+    return true;
+}
+
 static int tcg_gdbstub_supported_sstep_flags(AccelState *as)
 {
     /*
@@ -242,6 +247,7 @@ static void tcg_accel_class_init(ObjectClass *oc, const void *data)
     ac->cpu_common_realize = tcg_exec_realizefn;
     ac->cpu_common_unrealize = tcg_exec_unrealizefn;
     ac->allowed = &tcg_allowed;
+    ac->supports_guest_debug = tcg_supports_guest_debug;
     ac->gdbstub_supported_sstep_flags = tcg_gdbstub_supported_sstep_flags;
 
     object_class_property_add_str(oc, "thread",
diff --git a/gdbstub/system.c b/gdbstub/system.c
index 8a32d8e1a1d..bced226fd94 100644
--- a/gdbstub/system.c
+++ b/gdbstub/system.c
@@ -634,9 +634,10 @@ int gdb_signal_to_target(int sig)
 
 bool gdb_supports_guest_debug(void)
 {
-    const AccelOpsClass *ops = cpus_get_accel();
-    if (ops->supports_guest_debug) {
-        return ops->supports_guest_debug();
+    AccelState *accel = current_accel();
+    AccelClass *acc = ACCEL_GET_CLASS(accel);
+    if (acc->supports_guest_debug) {
+        return acc->supports_guest_debug(accel);
     }
     return false;
 }
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index 87cd323c14d..48ce83eb8fc 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -2409,7 +2409,7 @@ void hvf_arch_update_guest_debug(CPUState *cpu)
     hvf_arch_set_traps(cpu);
 }
 
-bool hvf_arch_supports_guest_debug(void)
+bool hvf_arch_supports_guest_debug(AccelState *as)
 {
     return true;
 }
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index 28484496710..bcf30662bec 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -1024,7 +1024,7 @@ void hvf_arch_update_guest_debug(CPUState *cpu)
 {
 }
 
-bool hvf_arch_supports_guest_debug(void)
+bool hvf_arch_supports_guest_debug(AccelState *as)
 {
     return false;
 }
-- 
2.49.0