[PATCH 2/11] QEMU/KVM: Cleanup and improve kvm_load/save_registers usage

[Jan Kiszka <jan.kiszka@web.de>]

Remove redundant checkes for kvm_enabled() on register updates between
userspace and kvm kernel driver. Ensure register update across all CPUs
on "info cpus" monitor command.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
---
 qemu/gdbstub.c |   12 ++++--------
 qemu/monitor.c |    4 ++--
 2 files changed, 6 insertions(+), 10 deletions(-)

Index: b/qemu/monitor.c
===================================================================
--- a/qemu/monitor.c
+++ b/qemu/monitor.c
@@ -286,8 +286,7 @@ static CPUState *mon_get_cpu(void)
         mon_set_cpu(0);
     }
 
-    if (kvm_enabled())
-	kvm_save_registers(mon_cpu);
+    kvm_save_registers(mon_cpu);
 
     return mon_cpu;
 }
@@ -315,6 +314,7 @@ static void do_info_cpus(void)
     mon_get_cpu();
 
     for(env = first_cpu; env != NULL; env = env->next_cpu) {
+        kvm_save_registers(env);
         term_printf("%c CPU #%d:",
                     (env == mon_cpu) ? '*' : ' ',
                     env->cpu_index);
Index: b/qemu/gdbstub.c
===================================================================
--- a/qemu/gdbstub.c
+++ b/qemu/gdbstub.c
@@ -904,8 +904,7 @@ static int gdb_handle_packet(GDBState *s
             addr = strtoull(p, (char **)&p, 16);
 #if defined(TARGET_I386)
             env->eip = addr;
-	    if (kvm_enabled())
-		kvm_load_registers(env);
+            kvm_load_registers(env);
 #elif defined (TARGET_PPC)
             env->nip = addr;
 #elif defined (TARGET_SPARC)
@@ -928,8 +927,7 @@ static int gdb_handle_packet(GDBState *s
             addr = strtoull(p, (char **)&p, 16);
 #if defined(TARGET_I386)
             env->eip = addr;
-	    if (kvm_enabled())
-		kvm_load_registers(env);
+            kvm_load_registers(env);
 #elif defined (TARGET_PPC)
             env->nip = addr;
 #elif defined (TARGET_SPARC)
@@ -973,8 +971,7 @@ static int gdb_handle_packet(GDBState *s
         }
         break;
     case 'g':
-	if (kvm_enabled())
-	    kvm_save_registers(env);
+        kvm_save_registers(env);
         reg_size = cpu_gdb_read_registers(env, mem_buf);
         memtohex(buf, mem_buf, reg_size);
         put_packet(s, buf);
@@ -984,8 +981,7 @@ static int gdb_handle_packet(GDBState *s
         len = strlen(p) / 2;
         hextomem((uint8_t *)registers, p, len);
         cpu_gdb_write_registers(env, mem_buf, len);
-	if (kvm_enabled())
-	    kvm_load_registers(env);
+        kvm_load_registers(env);
         put_packet(s, "OK");
         break;
     case 'm':