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/*
* 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"
struct subchannel_id blk_schid;
char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE)));
void virtio_panic(const char *string)
{
sclp_print(string);
disabled_wait();
while (1) { }
}
static void virtio_setup(void)
{
struct irb irb;
int i;
int r;
bool found = false;
blk_schid.one = 1;
for (i = 0; i < 0x10000; i++) {
blk_schid.sch_no = i;
r = tsch(blk_schid, &irb);
if (r != 3) {
if (virtio_is_blk(blk_schid)) {
found = true;
break;
}
}
}
if (!found) {
virtio_panic("No virtio-blk device found!\n");
}
virtio_setup_block(blk_schid);
}
int main(void)
{
sclp_setup();
virtio_setup();
if (zipl_load() < 0)
sclp_print("Failed to load OS from hard disk\n");
disabled_wait();
while (1) { }
}
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