From: Lionel Sambuc <lionel@minix3.org>
Date: Fri, 25 Jul 2014 13:54:54 +0000 (+0200)
Subject: Message type for SYS_READBIOS.
X-Git-Tag: v3.3.0~108
X-Git-Url: http://zhaoyanbai.com/repos/Bv9ARM.ch13.html?a=commitdiff_plain;h=f45c6b86cb6a88f7d1815c8e9fe337ff1c7600ae;p=minix.git

Message type for SYS_READBIOS.

Change-Id: Id19f658f5eb5f350e3e19f9ce3f8ae80aea23c51
---

diff --git a/include/minix/com.h b/include/minix/com.h
index 5e3e79536..f9cb110ed 100644
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -371,11 +371,6 @@
 #define PROF_CTL_PTR   m7_p1    /* location of info struct */
 #define PROF_MEM_PTR   m7_p2    /* location of profiling data */
 
-/* Field names for SYS_READBIOS. */
-#define RDB_SIZE	m2_i1
-#define RDB_ADDR	m2_l1
-#define RDB_BUF		m2_p1
-
 /* Field names for SYS_VMCTL. */
 #define SVMCTL_WHO	m1_i1
 #define SVMCTL_PARAM	m1_i2	/* All SYS_VMCTL requests. */
diff --git a/include/minix/ipc.h b/include/minix/ipc.h
index a5c2151f7..4f3e87607 100644
--- a/include/minix/ipc.h
+++ b/include/minix/ipc.h
@@ -115,6 +115,15 @@ typedef struct {
 } mess_11;
 _ASSERT_MSG_SIZE(mess_11);
 
+typedef struct {
+	size_t size;
+	phys_bytes addr;
+	vir_bytes buf;
+
+	uint8_t padding[44];
+} mess_lsys_krn_readbios;
+_ASSERT_MSG_SIZE(mess_lsys_krn_readbios);
+
 typedef struct {
 	off_t offset;
 	void *addr;
@@ -1952,6 +1961,7 @@ typedef struct {
 		mess_notify		m_notify;
 		mess_sigcalls		m_sigcalls;
 
+		mess_lsys_krn_readbios	m_lsys_krn_readbios;
 		mess_input_tty_event	m_input_tty_event;
 
 		mess_krn_lsys_schedule	m_krn_lsys_schedule;
diff --git a/kernel/arch/i386/do_readbios.c b/kernel/arch/i386/do_readbios.c
index 3f162570f..b7ad3c524 100644
--- a/kernel/arch/i386/do_readbios.c
+++ b/kernel/arch/i386/do_readbios.c
@@ -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);
 }
diff --git a/lib/libsys/arch/i386/sys_readbios.c b/lib/libsys/arch/i386/sys_readbios.c
index 3e3f555e8..497f3c4bf 100644
--- a/lib/libsys/arch/i386/sys_readbios.c
+++ b/lib/libsys/arch/i386/sys_readbios.c
@@ -8,8 +8,8 @@ size_t size;			/* Amount of data to read */
 /* Read data from BIOS locations */
   message m;
 
-  m.RDB_SIZE = size;
-  m.RDB_ADDR = address;
-  m.RDB_BUF = buf;
+  m.m_lsys_krn_readbios.size = size;
+  m.m_lsys_krn_readbios.addr = address;
+  m.m_lsys_krn_readbios.buf = buf;
   return(_kernel_call(SYS_READBIOS, &m));
 }