Commit 3fad3252 authored by David Hildenbrand's avatar David Hildenbrand Committed by Cornelia Huck
Browse files

s390x/sclp: propagate the mha via sclp 



The mha is provided in the CPU model, so get any CPU and extract the value.

Acked-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <20160905085244.99980-18-dahi@linux.vnet.ibm.com>
Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
parent 059be520

hw/s390x/sclp.c

+1 −0
Original line number Diff line number Diff line
@@ -110,6 +110,7 @@ static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb) 


        read_info->facilities |= cpu_to_be64(SCLP_FC_ASSIGN_ATTACH_READ_STOR);

    }

    read_info->mha_pow = s390_get_mha_pow();



    rnsize = 1 << (sclp->increment_size - 20);

    if (rnsize <= 128) {

include/hw/s390x/sclp.h

+2 −1
Original line number Diff line number Diff line
@@ -124,7 +124,8 @@ typedef struct ReadInfo { 
    uint8_t  _reserved0[76 - 56];       /* 56-75 */

    uint32_t ibc_val;

    uint8_t  conf_char[96 - 80];        /* 80-95 */

    uint8_t  _reserved4[100 - 96];      /* 96-99 */

    uint8_t  _reserved4[99 - 96];       /* 96-98 */

    uint8_t mha_pow;

    uint32_t rnsize2;

    uint64_t rnmax2;

    uint8_t  _reserved6[116 - 112];     /* 112-115 */

target-s390x/cpu_models.c

+14 −0
Original line number Diff line number Diff line
@@ -74,6 +74,20 @@ static S390CPUDef s390_cpu_defs[] = { 
    CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"),

};



uint8_t s390_get_mha_pow(void)

{

    static S390CPU *cpu;



    if (!cpu) {

        cpu = S390_CPU(qemu_get_cpu(0));

    }



    if (!cpu || !cpu->model) {

        return 0;

    }

    return cpu->model->def->mha_pow;

}



uint32_t s390_get_ibc_val(void)

{

    uint16_t unblocked_ibc, lowest_ibc;

target-s390x/cpu_models.h

+1 −0
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ typedef struct S390CPUModel { 


#define S390_GEN_Z10 0xa



uint8_t s390_get_mha_pow(void);

uint32_t s390_get_ibc_val(void);

static inline uint16_t s390_ibc_from_cpu_model(const S390CPUModel *model)

{