Files
codezero/conts/posix/mm0/fs/bdev.c
Bahadir Balban da5f4dcff3 Changes in merged posix pager mm0 initialization.
- Moved rootfs from being embedded to mm0 image to being an independent image.
- MM0 boots up to start_init_process with updated boot convention.
2009-10-05 13:25:32 +03:00

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530 B
C

/*
* This is just to allocate some memory as a block device.
*/
#include <init.h>
#include <l4/macros.h>
#include <bootdesc.h>
#include <memfs/memfs.h>
#include <l4lib/arch/syslib.h>
void *vfs_rootdev_open(void)
{
struct svc_image *rootfs_img = bootdesc_get_image_byname("rootfs");
unsigned long rootfs_size = rootfs_img->phys_end - rootfs_img->phys_start;
BUG_ON(rootfs_size < MEMFS_TOTAL_SIZE);
/* Map filesystem blocks to virtual memory */
return l4_map_helper((void *)rootfs_img->phys_start, __pfn(rootfs_size));
}