diff options
author | 2017-04-25 03:31:15 -0700 | |
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committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/pc-bios/s390-ccw/main.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/pc-bios/s390-ccw/main.c')
-rw-r--r-- | qemu/pc-bios/s390-ccw/main.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/qemu/pc-bios/s390-ccw/main.c b/qemu/pc-bios/s390-ccw/main.c deleted file mode 100644 index 1c9e0791a..000000000 --- a/qemu/pc-bios/s390-ccw/main.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * S390 virtio-ccw loading program - * - * Copyright (c) 2013 Alexander Graf <agraf@suse.de> - * - * 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. - */ - -#include "s390-ccw.h" -#include "virtio.h" - -char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE))); -uint64_t boot_value; -static SubChannelId blk_schid = { .one = 1 }; - -/* - * Priniciples of Operations (SA22-7832-09) chapter 17 requires that - * a subsystem-identification is at 184-187 and bytes 188-191 are zero - * after list-directed-IPL and ccw-IPL. - */ -void write_subsystem_identification(void) -{ - SubChannelId *schid = (SubChannelId *) 184; - uint32_t *zeroes = (uint32_t *) 188; - - *schid = blk_schid; - *zeroes = 0; -} - - -void panic(const char *string) -{ - sclp_print(string); - disabled_wait(); - while (1) { } -} - -static bool find_dev(Schib *schib, int dev_no) -{ - int i, r; - - for (i = 0; i < 0x10000; i++) { - blk_schid.sch_no = i; - r = stsch_err(blk_schid, schib); - if ((r == 3) || (r == -EIO)) { - break; - } - if (!schib->pmcw.dnv) { - continue; - } - if (!virtio_is_supported(blk_schid)) { - continue; - } - if ((dev_no < 0) || (schib->pmcw.dev == dev_no)) { - return true; - } - } - - return false; -} - -static void virtio_setup(uint64_t dev_info) -{ - Schib schib; - int ssid; - bool found = false; - uint16_t dev_no; - - /* - * We unconditionally enable mss support. In every sane configuration, - * this will succeed; and even if it doesn't, stsch_err() can deal - * with the consequences. - */ - enable_mss_facility(); - - if (dev_info != -1) { - dev_no = dev_info & 0xffff; - debug_print_int("device no. ", dev_no); - blk_schid.ssid = (dev_info >> 16) & 0x3; - debug_print_int("ssid ", blk_schid.ssid); - found = find_dev(&schib, dev_no); - } else { - for (ssid = 0; ssid < 0x3; ssid++) { - blk_schid.ssid = ssid; - found = find_dev(&schib, -1); - if (found) { - break; - } - } - } - - IPL_assert(found, "No virtio device found"); - - virtio_setup_device(blk_schid); - - IPL_assert(virtio_ipl_disk_is_valid(), "No valid IPL device detected"); -} - -int main(void) -{ - sclp_setup(); - debug_print_int("boot reg[7] ", boot_value); - virtio_setup(boot_value); - - zipl_load(); /* no return */ - - panic("Failed to load OS from hard disk\n"); - return 0; /* make compiler happy */ -} |