Re: [PATCH] s390/sclp: fix SCLP facility map

[Eric Farman <farman@linux.ibm.com>]

(+cc qemu-devel)

On Tue, 2023-10-24 at 12:07 +0200, Heiko Carstens wrote:
> Qemu's SCLP implementation incorrectly reports that it supports CPU
> reconfiguration. If a guest issues a CPU reconfiguration request it
> is rejected as invalid command.
> 
> Fix the SCLP_HAS_CPU_INFO mask, and remove the unused
> SCLP_CMDW_CONFIGURE_CPU and SCLP_CMDW_DECONFIGURE_CPU defines.
> 
> Reviewed-by: Eric Farman <farman@linux.ibm.com>
> Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
> ---
>  include/hw/s390x/sclp.h | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)

Thomas, any concerns? Could this get picked up for 8.2, please?

> 
> diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h
> index 9aef6d937012..b4ecd04e2341 100644
> --- a/include/hw/s390x/sclp.h
> +++ b/include/hw/s390x/sclp.h
> @@ -38,10 +38,8 @@
>  #define MAX_STORAGE_INCREMENTS                  1020
>  
>  /* CPU hotplug SCLP codes */
> -#define SCLP_HAS_CPU_INFO                      
> 0x0C00000000000000ULL
> +#define SCLP_HAS_CPU_INFO                      
> 0x0800000000000000ULL
>  #define SCLP_CMDW_READ_CPU_INFO                 0x00010001
> -#define SCLP_CMDW_CONFIGURE_CPU                 0x00110001
> -#define SCLP_CMDW_DECONFIGURE_CPU               0x00100001
>  
>  /* SCLP PCI codes */
>  #define SCLP_HAS_IOA_RECONFIG                  
> 0x0000000040000000ULL