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Commit 8a88ac61 authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Avi Kivity
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s390: KVM preparation: address of the 64bit extint parm in lowcore 



The address 0x11b8 is used by z/VM for pfault and diag 250 I/O to
provide a 64 bit extint parameter. virtio uses the same address, so
its time to update the lowcore structure.

Acked-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarCarsten Otte <cotte@de.ibm.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 5b7baf05

include/asm-s390/lowcore.h

+10 −5
Original line number Diff line number Diff line
@@ -381,27 +381,32 @@ struct _lowcore 
        /* whether the kernel died with panic() or not */

        __u32        panic_magic;              /* 0xe00 */



	__u8         pad13[0x1200-0xe04];      /* 0xe04 */

	__u8         pad13[0x11b8-0xe04];      /* 0xe04 */



	/* 64 bit extparam used for pfault, diag 250 etc  */

	__u64        ext_params2;               /* 0x11B8 */



	__u8         pad14[0x1200-0x11C0];      /* 0x11C0 */



        /* System info area */ 



	__u64        floating_pt_save_area[16]; /* 0x1200 */

	__u64        gpregs_save_area[16];      /* 0x1280 */

	__u32        st_status_fixed_logout[4]; /* 0x1300 */

	__u8         pad14[0x1318-0x1310];      /* 0x1310 */

	__u8         pad15[0x1318-0x1310];      /* 0x1310 */

	__u32        prefixreg_save_area;       /* 0x1318 */

	__u32        fpt_creg_save_area;        /* 0x131c */

	__u8         pad15[0x1324-0x1320];      /* 0x1320 */

	__u8         pad16[0x1324-0x1320];      /* 0x1320 */

	__u32        tod_progreg_save_area;     /* 0x1324 */

	__u32        cpu_timer_save_area[2];    /* 0x1328 */

	__u32        clock_comp_save_area[2];   /* 0x1330 */

	__u8         pad16[0x1340-0x1338];      /* 0x1338 */ 

	__u8         pad17[0x1340-0x1338];      /* 0x1338 */

	__u32        access_regs_save_area[16]; /* 0x1340 */ 

	__u64        cregs_save_area[16];       /* 0x1380 */



	/* align to the top of the prefix area */



	__u8         pad17[0x2000-0x1400];      /* 0x1400 */

	__u8         pad18[0x2000-0x1400];      /* 0x1400 */

#endif /* !__s390x__ */

} __attribute__((packed)); /* End structure*/