[PATCH 3/6] hw/core/cpu-sysemu: used cached class in cpu_asidx_from_attrs

[Cédric Le Goater]

From: Alex Bennée <alex.bennee@linaro.org>

This is a heavily used function so lets avoid the cost of
CPU_GET_CLASS. On the romulus-bmc run it has a modest effect:

  Before: 36.812 s ±  0.506 s
  After:  35.912 s ±  0.168 s

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220811151413.3350684-4-alex.bennee@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/core/cpu-sysemu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/hw/core/cpu-sysemu.c b/hw/core/cpu-sysemu.c
index 00253f89293a..5eaf2e79e66c 100644
--- a/hw/core/cpu-sysemu.c
+++ b/hw/core/cpu-sysemu.c
@@ -69,11 +69,10 @@ hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr)
 
 int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
     int ret = 0;
 
-    if (cc->sysemu_ops->asidx_from_attrs) {
-        ret = cc->sysemu_ops->asidx_from_attrs(cpu, attrs);
+    if (cpu->cc->sysemu_ops->asidx_from_attrs) {
+        ret = cpu->cc->sysemu_ops->asidx_from_attrs(cpu, attrs);
         assert(ret < cpu->num_ases && ret >= 0);
     }
     return ret;
-- 
2.37.3