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Message type for SYS_READBIOS.

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Change-Id: Id19f658f5eb5f350e3e19f9ce3f8ae80aea23c51
This commit is contained in:
Lionel Sambuc
2014-07-25 15:54:54 +02:00
parent b51e653dd4
commit f45c6b86cb
4 changed files with 21 additions and 15 deletions
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15
kernel/arch/i386/do_readbios.c
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@@ -2,9 +2,9 @@
* m_type: SYS_READBIOS
*
* The parameters for this kernel call are:
* m2_i1: RDB_SIZE number of bytes to copy
* m2_l1: RDB_ADDR absolute address in BIOS area
* m2_p1: RDB_BUF buffer address in requesting process
* m_lsys_krn_readbios.size number of bytes to copy
* m_lsys_krn_readbios.addr absolute address in BIOS area
* m_lsys_krn_readbios.buf buffer address in requesting process
*/
#include "kernel/system.h"
@@ -16,10 +16,11 @@
int do_readbios(struct proc * caller, message * m_ptr)
{
struct vir_addr src, dst;
vir_bytes len = m_ptr->RDB_SIZE, limit;
size_t len = m_ptr->m_lsys_krn_readbios.size;
vir_bytes limit;
src.offset = m_ptr->RDB_ADDR;
dst.offset = (vir_bytes) m_ptr->RDB_BUF;
src.offset = m_ptr->m_lsys_krn_readbios.addr;
dst.offset = m_ptr->m_lsys_krn_readbios.buf;
src.proc_nr_e = NONE;
dst.proc_nr_e = m_ptr->m_source;
@@ -33,5 +34,5 @@ int do_readbios(struct proc * caller, message * m_ptr)
!USERRANGE(BASE_MEM_TOP, UPPER_MEM_END))
return EPERM;
return virtual_copy_vmcheck(caller, &src, &dst, m_ptr->RDB_SIZE);
return virtual_copy_vmcheck(caller, &src, &dst, m_ptr->m_lsys_krn_readbios.size);
}