Minix/minix
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

retire BIOS_SEG and umap_bios

Browse Source 
. readbios call is now a physical copy with range check in
	  the kernel call instead of BIOS_SEG+umap_bios
	. requires all access to physical memory in bios range to go
	  through sys_readbios
	. drivers/dpeth: wasn't using it
	. adjusted printer
This commit is contained in:
Ben Gras
2012-05-09 18:34:40 +02:00
parent b611e4c226
commit cfb2d7bca5
10 changed files with 23 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/system/do_umap_remote.c
View File

@@ -32,7 +32,7 @@ int do_umap_remote(struct proc * caller, message * m_ptr)
int count = m_ptr->CP_NR_BYTES;
int endpt = (int) m_ptr->CP_SRC_ENDPT;
endpoint_t grantee = (endpoint_t) m_ptr->CP_DST_ENDPT;
int proc_nr, proc_nr_grantee, r;
int proc_nr, proc_nr_grantee;
int naughty = 0;
phys_bytes phys_addr = 0, lin_addr = 0;
struct proc *targetpr;
@@ -105,10 +105,8 @@ int do_umap_remote(struct proc * caller, message * m_ptr)
panic("vm_lookup returned zero physical address");
break;
default:
if((r=arch_umap(targetpr, offset, count, seg_type, &lin_addr))
!= OK)
return r;
phys_addr = lin_addr;
printf("umap: peculiar type\n");
return EINVAL;
}
if(vm_running && vm_lookup_range(targetpr, lin_addr, NULL, count) != count) {