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hw/core/cpu-sysemu: used cached class in cpu_asidx_from_attrs 

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>
Message-Id: <20220923084803.498337-4-clg@kaod.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Alex Bennée 2022-09-23 10:48:00 +02:00 committed by Richard Henderson
parent 6fbdff8706
commit b404ca370e
1 changed files with 2 additions and 3 deletions
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hw/core/cpu-sysemu.c
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@ -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;