On 11/12/2020 11.00, Janosch Frank wrote:
> Not much to test except for the privilege and specification
> exceptions.
>
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
> ---
> lib/s390x/sclp.c | 2 ++
> lib/s390x/sclp.h | 6 +++++-
> s390x/intercept.c | 19 +++++++++++++++++++
> 3 files changed, 26 insertions(+), 1 deletion(-)
>
> diff --git a/lib/s390x/sclp.c b/lib/s390x/sclp.c
> index cf6ea7c..0001993 100644
> --- a/lib/s390x/sclp.c
> +++ b/lib/s390x/sclp.c
> @@ -138,6 +138,8 @@ void sclp_facilities_setup(void)
>
> assert(read_info);
>
> + sclp_facilities.has_diag318 = read_info->byte_134_diag318;
> +
> cpu = (void *)read_info + read_info->offset_cpu;
> for (i = 0; i < read_info->entries_cpu; i++, cpu++) {
> if (cpu->address == cpu0_addr) {
> diff --git a/lib/s390x/sclp.h b/lib/s390x/sclp.h
> index 6c86037..58f8e54 100644
> --- a/lib/s390x/sclp.h
> +++ b/lib/s390x/sclp.h
> @@ -105,7 +105,8 @@ extern struct sclp_facilities sclp_facilities;
>
> struct sclp_facilities {
> uint64_t has_sief2 : 1;
> - uint64_t : 63;
> + uint64_t has_diag318 : 1;
> + uint64_t : 62;
> };
>
> typedef struct ReadInfo {
> @@ -130,6 +131,9 @@ typedef struct ReadInfo {
> uint16_t highest_cpu;
> uint8_t _reserved5[124 - 122]; /* 122-123 */
> uint32_t hmfai;
> + uint8_t reserved7[134 - 128];
> + uint8_t byte_134_diag318 : 1;
> + uint8_t : 7;
> struct CPUEntry entries[0];
... the entries[] array can be moved around here without any further ado?
Looks confusing to me. Should there be a CPUEntry array here at all, or only
in ReadCpuInfo?
> } __attribute__((packed)) ReadInfo;
>
Thomas
