s390x: SMP for TCG

[Qemu-devel] [PATCH v2 25/30] s390x/tcg: flush the tlb on SIGP SET PREFIX

Posted by David Hildenbrand 8 years, 4 months ago

Thanks to Aurelien Jarno for doing this in his prototype.

We can flush the whole TLB as this should happen really rarely.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/sigp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/s390x/sigp.c b/target/s390x/sigp.c
index d70f5cb0ba..c5a5dac911 100644
--- a/target/s390x/sigp.c
+++ b/target/s390x/sigp.c
@@ -287,6 +287,7 @@ static void sigp_set_prefix(CPUState *cs, run_on_cpu_data arg)
     }
 
     cpu->env.psa = addr;
+    tlb_flush(cs);
     cpu_synchronize_post_init(cs);
     si->cc = SIGP_CC_ORDER_CODE_ACCEPTED;
 }
-- 
2.13.5

Re: [Qemu-devel] [PATCH v2 25/30] s390x/tcg: flush the tlb on SIGP SET PREFIX

Posted by Richard Henderson 8 years, 4 months ago

On 09/28/2017 04:37 PM, David Hildenbrand wrote:
> Thanks to Aurelien Jarno for doing this in his prototype.
> 
> We can flush the whole TLB as this should happen really rarely.
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
>  target/s390x/sigp.c | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~