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s390x/sclp: reporting the maximum nested topology entries

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The maximum nested topology entries is used by the guest to
know how many nested topology are available on the machine.

Let change the MNEST value from 2 to 4 in the SCLP READ INFO
structure now that we support books and drawers.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231016183925.2384704-6-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Pierre Morel 2023-10-16 20:39:09 +02:00 • committed by Thomas Huth
parent f4f54b582f
commit a67f05b391
2 changed files with 8 additions and 2 deletions
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5
include/hw/s390x/sclp.h
View file

@ -112,12 +112,13 @@ typedef struct CPUEntry {
} QEMU_PACKED CPUEntry;
#define SCLP_READ_SCP_INFO_FIXED_CPU_OFFSET 128
#define SCLP_READ_SCP_INFO_MNEST 2
#define SCLP_READ_SCP_INFO_MNEST 4
typedef struct ReadInfo {
SCCBHeader h;
uint16_t rnmax;
uint8_t rnsize;
uint8_t _reserved1[16 - 11]; /* 11-15 */
uint8_t _reserved1[15 - 11]; /* 11-14 */
uint8_t stsi_parm; /* 15-15 */
uint16_t entries_cpu; /* 16-17 */
uint16_t offset_cpu; /* 18-19 */
uint8_t _reserved2[24 - 20]; /* 20-23 */