cpus: pass CPUState to run_on_cpu helpers

CPUState is a fairly common pointer to pass to these helpers. This means
if you need other arguments for the async_run_on_cpu case you end up
having to do a g_malloc to stuff additional data into the routine. For
the current users this isn't a massive deal but for MTTCG this gets
cumbersome when the only other parameter is often an address.

This adds the typedef run_on_cpu_func for helper functions which has an
explicit CPUState * passed as the first parameter. All the users of
run_on_cpu and async_run_on_cpu have had their helpers updated to use
CPUState where available.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
[Sergey Fedorov:
 - eliminate more CPUState in user data;
 - remove unnecessary user data passing;
 - fix target-s390x/kvm.c and target-s390x/misc_helper.c]
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts)
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> (s390 parts)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <1470158864-17651-3-git-send-email-alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 7 insertions, 10 deletions

diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 290a712..c5e7e8c 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -13,19 +13,18 @@
 #include "kvm_ppc.h"
 
 struct SPRSyncState {
-    CPUState *cs;
     int spr;
     target_ulong value;
     target_ulong mask;
 };
 
-static void do_spr_sync(void *arg)
+static void do_spr_sync(CPUState *cs, void *arg)
 {
     struct SPRSyncState *s = arg;
-    PowerPCCPU *cpu = POWERPC_CPU(s->cs);
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
     CPUPPCState *env = &cpu->env;
 
-    cpu_synchronize_state(s->cs);
+    cpu_synchronize_state(cs);
     env->spr[s->spr] &= ~s->mask;
     env->spr[s->spr] |= s->value;
 }
@@ -34,7 +33,6 @@ static void set_spr(CPUState *cs, int spr, target_ulong value,
                     target_ulong mask)
 {
     struct SPRSyncState s = {
-        .cs = cs,
         .spr = spr,
         .value = value,
         .mask = mask
@@ -909,17 +907,17 @@ static target_ulong cas_get_option_vector(int vector, target_ulong table)
 }
 
 typedef struct {
-    PowerPCCPU *cpu;
     uint32_t cpu_version;
     Error *err;
 } SetCompatState;
 
-static void do_set_compat(void *arg)
+static void do_set_compat(CPUState *cs, void *arg)
 {
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
     SetCompatState *s = arg;
 
-    cpu_synchronize_state(CPU(s->cpu));
-    ppc_set_compat(s->cpu, s->cpu_version, &s->err);
+    cpu_synchronize_state(cs);
+    ppc_set_compat(cpu, s->cpu_version, &s->err);
 }
 
 #define get_compat_level(cpuver) ( \
@@ -1015,7 +1013,6 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu_,
     if (old_cpu_version != cpu_version) {
         CPU_FOREACH(cs) {
             SetCompatState s = {
-                .cpu = POWERPC_CPU(cs),
                 .cpu_version = cpu_version,
                 .err = NULL,
             };