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Commit 154fa27e authored by Alexander Yarygin's avatar Alexander Yarygin Committed by Christian Borntraeger
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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: default avatarAlexander Yarygin <yarygin@linux.vnet.ibm.com>
Reviewed-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: default avatarEric Farman <farman@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent ed8dda0b

arch/s390/include/asm/sclp.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -69,6 +69,7 @@ struct sclp_info { 
	unsigned int max_cores;

	unsigned int max_cores;

	unsigned long hsa_size;

	unsigned long hsa_size;

	unsigned long facilities;

	unsigned long facilities;

	unsigned int hmfai;

};

};

extern struct sclp_info sclp;

extern struct sclp_info sclp;

drivers/s390/char/sclp_early.c

+5 −1
Original line number Original line Diff line number Diff line
@@ -49,7 +49,9 @@ struct read_info_sccb { 
	u8	_pad_117[119 - 117];	/* 117-118 */

	u8	_pad_117[119 - 117];	/* 117-118 */

	u8	fac119;			/* 119 */

	u8	fac119;			/* 119 */

	u16	hcpua;			/* 120-121 */

	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);

} __packed __aligned(PAGE_SIZE);





static char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE) __initdata;

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 = (sccb->fac42 & 0x80) ? (sccb->fac42 & 31) : 0;

	sclp.mtid_cp = (sccb->fac42 & 0x80) ? (sccb->fac43 & 31) : 0;

	sclp.mtid_cp = (sccb->fac42 & 0x80) ? (sccb->fac43 & 31) : 0;

	sclp.mtid_prev = (sccb->fac42 & 0x80) ? (sccb->fac66 & 31) : 0;

	sclp.mtid_prev = (sccb->fac42 & 0x80) ? (sccb->fac66 & 31) : 0;



	sclp.hmfai = sccb->hmfai;

}

}





/*

/*