[Qemu-devel] [PATCH v1 21/23] s390x/tcg: Allow linux-user to use vector instructions

David Hildenbrand posted 23 patches 6 years, 5 months ago
There is a newer version of this series
[Qemu-devel] [PATCH v1 21/23] s390x/tcg: Allow linux-user to use vector instructions
Posted by David Hildenbrand 6 years, 5 months ago
Once we unlock S390_FEAT_VECTOR for TCG, we want linux-user to be
able to make use of it.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/cpu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index b1df63d82c..6af1a1530f 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -145,6 +145,9 @@ static void s390_cpu_full_reset(CPUState *s)
 #if defined(CONFIG_USER_ONLY)
     /* user mode should always be allowed to use the full FPU */
     env->cregs[0] |= CR0_AFP;
+    if (s390_has_feat(S390_FEAT_VECTOR)) {
+        env->cregs[0] |= CR0_VECTOR;
+    }
 #endif
 
     /* architectured initial value for Breaking-Event-Address register */
-- 
2.20.1


Re: [Qemu-devel] [PATCH v1 21/23] s390x/tcg: Allow linux-user to use vector instructions
Posted by Richard Henderson 6 years, 5 months ago
On 5/31/19 5:44 AM, David Hildenbrand wrote:
> Once we unlock S390_FEAT_VECTOR for TCG, we want linux-user to be
> able to make use of it.
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
>  target/s390x/cpu.c | 3 +++
>  1 file changed, 3 insertions(+)

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


r~