Re: [PATCH v4 08/16] s390x: protvirt: Move STSI data over SIDAD

[David Hildenbrand]

On 20.02.20 13:56, Janosch Frank wrote:
> For protected guests, we need to put the STSI emulation results into
> the SIDA, so SIE will write them into the guest at the next entry.
> 
> Signed-off-by: Janosch Frank <address@hidden>
> ---
>  target/s390x/kvm.c | 15 ++++++++++++---
>  1 file changed, 12 insertions(+), 3 deletions(-)
> 
> diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
> index f222836df5..3a5a5146e3 100644
> --- a/target/s390x/kvm.c
> +++ b/target/s390x/kvm.c
> @@ -1795,11 +1795,16 @@ static int handle_tsch(S390CPU *cpu)
>  
>  static void insert_stsi_3_2_2(S390CPU *cpu, __u64 addr, uint8_t ar)
>  {
> +    CPUS390XState *env = &cpu->env;
>      SysIB_322 sysib;
>      int del;
>  
> -    if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) {
> -        return;
> +    if (env->pv) {
> +        s390_cpu_pv_mem_read(cpu, 0, &sysib, sizeof(sysib));
> +    } else {
> +        if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) {
> +            return;
> +        }
>      }
>      /* Shift the stack of Extended Names to prepare for our own data */
>      memmove(&sysib.ext_names[1], &sysib.ext_names[0],
> @@ -1838,7 +1843,11 @@ static void insert_stsi_3_2_2(S390CPU *cpu, __u64 
> addr, uint8_t ar)
>      /* Insert UUID */
>      memcpy(sysib.vm[0].uuid, &qemu_uuid, sizeof(sysib.vm[0].uuid));
>  
> -    s390_cpu_virt_mem_write(cpu, addr, ar, &sysib, sizeof(sysib));
> +    if (env->pv) {
> +        s390_cpu_pv_mem_write(cpu, 0, &sysib, sizeof(sysib));
> +    } else {
> +        s390_cpu_virt_mem_write(cpu, addr, ar, &sysib, sizeof(sysib));
> +    }
>  }
>  
>  static int handle_stsi(S390CPU *cpu)
> 

Acked-by: David Hildenbrand <address@hidden>

-- 
Thanks,

David / dhildenb