diff options
Diffstat (limited to 'purgatory/arch/s390/setup-s390.S')
| -rw-r--r-- | purgatory/arch/s390/setup-s390.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/purgatory/arch/s390/setup-s390.S b/purgatory/arch/s390/setup-s390.S new file mode 100644 index 0000000..215478a --- /dev/null +++ b/purgatory/arch/s390/setup-s390.S @@ -0,0 +1,47 @@ +/* + * Purgatory setup code + * + * Copyright IBM Corp. 2011 + * + * Author(s): Michael Holzheu <holzheu@linux.vnet.ibm.com> + */ + + .text + .globl purgatory_start + .balign 16 +purgatory_start: +#ifdef __s390x__ + larl %r5,gprs_save_area + stmg %r6,%r15,0(%r5) + larl %r15,lstack_end + aghi %r15,-160 + + cghi %r2,0 + je verify_checksums + + brasl %r14,purgatory + larl %r14,kdump_psw + lpswe 0(%r14) + +verify_checksums: + brasl %r14,verify_sha256_digest + larl %r5,gprs_save_area + lmg %r6,%r15,0(%r5) + br %r14 + .section ".data" + .balign 16 +kdump_psw: + .quad 0x0000000180000000 + .quad 0x0000000000010010 + + .bss +gprs_save_area: + .fill 80 + + .balign 4096 +lstack: + .skip 4096 +lstack_end: +#else +0: j 0 +#endif |