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authorAlexander Yarygin <yarygin@linux.vnet.ibm.com>2016-04-01 15:36:51 +0300
committerChristian Borntraeger <borntraeger@de.ibm.com>2016-05-09 13:33:59 +0200
commit154fa27e6ba37931ca585598acf17c4dcd44c81a (patch)
tree894fdca609b44f75a55267b44ddb9dcd8beec35f /drivers/s390
parented8dda0bf74b4fb8e73d8880c78effabd3285fd8 (diff)
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s390/sclp: Add hmfai field
Let's add hypervisor-managed facility-apportionment indications field to SCLP structs. KVM will use it to reduce maintenance cost of Non-Hypervisor-Managed facility bits. Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp_early.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 6804354c42bd..0ac520dd1b21 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -49,7 +49,9 @@ struct read_info_sccb {
u8 _pad_117[119 - 117]; /* 117-118 */
u8 fac119; /* 119 */
u16 hcpua; /* 120-121 */
- u8 _pad_122[4096 - 122]; /* 122-4095 */
+ u8 _pad_122[124 - 122]; /* 122-123 */
+ u32 hmfai; /* 124-127 */
+ u8 _pad_128[4096 - 128]; /* 128-4095 */
} __packed __aligned(PAGE_SIZE);
static char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE) __initdata;
@@ -155,6 +157,8 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.mtid = (sccb->fac42 & 0x80) ? (sccb->fac42 & 31) : 0;
sclp.mtid_cp = (sccb->fac42 & 0x80) ? (sccb->fac43 & 31) : 0;
sclp.mtid_prev = (sccb->fac42 & 0x80) ? (sccb->fac66 & 31) : 0;
+
+ sclp.hmfai = sccb->hmfai;
}
/*