diff options
Diffstat (limited to 'qemu/pc-bios/s390-ccw/start.S')
| -rw-r--r-- | qemu/pc-bios/s390-ccw/start.S | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/qemu/pc-bios/s390-ccw/start.S b/qemu/pc-bios/s390-ccw/start.S deleted file mode 100644 index b6dd8c2fb..000000000 --- a/qemu/pc-bios/s390-ccw/start.S +++ /dev/null @@ -1,65 +0,0 @@ -/* - * First stage boot loader for virtio devices. The compiled output goes - * into the pc-bios directory of qemu. - * - * Copyright (c) 2013 Alexander Graf <agraf@suse.de> - * Copyright 2013 IBM Corp. - * - * This work is licensed under the terms of the GNU GPL, version 2 or (at - * your option) any later version. See the COPYING file in the top-level - * directory. - */ - - .globl _start -_start: - -larl %r15, stack + 0x8000 /* Set up stack */ -larl %r6, boot_value -stg %r7, 0(%r6) /* save the boot_value before any function calls */ -j main /* And call C */ - -/* - * void disabled_wait(void) - * - * stops the current guest cpu. - */ - .globl disabled_wait -disabled_wait: - larl %r1,disabled_wait_psw - lpswe 0(%r1) - - -/* - * void consume_sclp_int(void) - * - * eats one sclp interrupt - */ - .globl consume_sclp_int -consume_sclp_int: - /* enable service interrupts in cr0 */ - stctg 0,0,0(15) - oi 6(15), 0x2 - lctlg 0,0,0(15) - /* prepare external call handler */ - larl %r1, external_new_code - stg %r1, 0x1b8 - larl %r1, external_new_mask - mvc 0x1b0(8),0(%r1) - /* load enabled wait PSW */ - larl %r1, enabled_wait_psw - lpswe 0(%r1) - -external_new_code: - /* disable service interrupts in cr0 */ - stctg 0,0,0(15) - ni 6(15), 0xfd - lctlg 0,0,0(15) - br 14 - - .align 8 -disabled_wait_psw: - .quad 0x0002000180000000,0x0000000000000000 -enabled_wait_psw: - .quad 0x0302000180000000,0x0000000000000000 -external_new_mask: - .quad 0x0000000180000000 |