diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2016-12-13 18:52:08 -0800 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-01-15 13:01:55 -0800 |
| commit | bd527a83232ce8b48dac4b8c86607ad8a7e28d98 (patch) | |
| tree | 6650120264bc9b01d6034e5ae017de2809d8ee99 /target/xtensa/cpu.c | |
| parent | 17ab14acd488289d2f85ad6212b212c21f050b3d (diff) | |
target/xtensa: implement RUNSTALL
RUNSTALL signal stalls core execution while it's applied. It is widely
used in multicore configurations to control activity of additional
cores.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'target/xtensa/cpu.c')
| -rw-r--r-- | target/xtensa/cpu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index 09b53c76d4..1c18892fca 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -47,7 +47,7 @@ static bool xtensa_cpu_has_work(CPUState *cs) { XtensaCPU *cpu = XTENSA_CPU(cs); - return cpu->env.pending_irq_level; + return !cpu->env.runstall && cpu->env.pending_irq_level; } /* CPUClass::reset() */ @@ -74,6 +74,7 @@ static void xtensa_cpu_reset(CPUState *s) env->pending_irq_level = 0; reset_mmu(env); + s->halted = env->runstall; } static ObjectClass *xtensa_cpu_class_by_name(const char *cpu_model) |