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#include <sys/param.h>
#include <sys/reboot.h>
#include <dev/ramdisk.h>
extern int boothowto;
#ifndef MINIROOTSIZE
#define MINIROOTSIZE 512
#endif
#define ROOTBYTES (MINIROOTSIZE << DEV_BSHIFT)
/* These two could be patched. */
int rd_root_size = ROOTBYTES;
char rd_root_image[ROOTBYTES] = "|This is the root ramdisk!\n";
/*
* This is called during autoconfig.
*/
void
rd_attach_hook(unit, rd)
int unit;
struct rd_conf *rd;
{
if (unit == 0) {
/* Setup root ramdisk */
rd->rd_addr = (caddr_t) rd_root_image;
rd->rd_size = (size_t) rd_root_size;
rd->rd_type = RD_KMEM_FIXED;
printf(" fixed, %d blocks", MINIROOTSIZE);
}
}
/*
* This is called during open (i.e. mountroot)
*/
void
rd_open_hook(unit, rd)
int unit;
struct rd_conf *rd;
{
if (unit == 0) {
/* The root ramdisk only works single-user. */
boothowto |= RB_SINGLE;
}
}
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