From: Ben Gras <ben@minix3.org>
Date: Wed, 15 May 2013 15:45:33 +0000 (+0000)
Subject: virtio_blk: always start if found
X-Git-Tag: v3.3.0~989
X-Git-Url: http://zhaoyanbai.com/repos/Bv9ARM.ch03.html?a=commitdiff_plain;h=a476662532b3586e3c708f29b5e736b20d898d7e;p=minix.git

virtio_blk: always start if found

Change-Id: Iec70c67e1b675297b5ffb800a9fb263feffa9271
---

diff --git a/drivers/ramdisk/Makefile b/drivers/ramdisk/Makefile
index d34b27eb3..280c77043 100644
--- a/drivers/ramdisk/Makefile
+++ b/drivers/ramdisk/Makefile
@@ -29,7 +29,7 @@ ETC=		system.conf master.passwd
 EXTRA=		rc
 PROTO_FILES=	proto.common.etc proto.common.dynamic proto.dev
 PROG_DRIVERS=
-PROG_COMMANDS=	mount fsck.mfs sh service loadramdisk sysenv
+PROG_COMMANDS=	mount umount grep fsck.mfs sh service loadramdisk sysenv
 PROG_SERVERS=	mfs procfs
 PROG_BIN=
 PROG_SBIN=
diff --git a/drivers/ramdisk/proto b/drivers/ramdisk/proto
index 99659d46f..f8f650452 100644
--- a/drivers/ramdisk/proto
+++ b/drivers/ramdisk/proto
@@ -10,6 +10,8 @@ d--755 0 0
 		fsck.mfs ---755 0 0 fsck.mfs
 #endif
 		mount ---755 0 0 mount
+		umount ---755 0 0 umount
+		grep ---755 0 0 grep
 		sh ---755 0 0 sh
 		service ---755 0 0 service
 	$
@@ -42,6 +44,8 @@ d--755 0 0
 #endif
 		$
 	$
+	proc d--755 0 0
+	$
 	dev d--755 0 0
 #include "proto.dev"
 	$
diff --git a/drivers/ramdisk/rc b/drivers/ramdisk/rc
index b49c1dd8a..cb7545699 100755
--- a/drivers/ramdisk/rc
+++ b/drivers/ramdisk/rc
@@ -9,23 +9,35 @@ FSCK=/bin/fsck.mfs
 ACPI=/usr/sbin/acpi
 
 if [ X`/bin/sysenv arch` = Xi386 ]
-then	if [ -e $ACPI -a -n "`sysenv acpi`" ]
+then	
+	/bin/service -c up /usr/sbin/pci
+	/bin/service up /sbin/procfs || echo "WARNING: couldn't start procfs"
+	/bin/mount -e -n -t procfs none /proc || echo "WARNING: couldn't mount procfs"
+
+	# Do we want to use the virtio block device?
+        if grep '^[^ ]* [^ ]* 1AF4:1001 ' /proc/pci >/dev/null
+	then	virtio_blk=yes
+	else	virtio_blk="`/bin/sysenv virtio_blk`"
+        fi
+
+	if [ -e $ACPI -a -n "`sysenv acpi`" ]
 	then
 		/bin/service -c up $ACPI
 	fi
-	/bin/service -c up /usr/sbin/pci
 	/bin/service -cn up /sbin/floppy -dev /dev/fd0
 	if [ X`/bin/sysenv ahci` = Xyes ]
 	then
 		# this is here temporarily, for testing purposes
 		/bin/service -c up /sbin/ahci -dev /dev/c0d0 -label ahci_0 -args instance=0
-	elif [ X`/bin/sysenv virtio_blk` = Xyes ]
+	elif [ X"$virtio_blk" = Xyes ]
 	then
 		/bin/service -c up /sbin/virtio_blk -dev /dev/c0d0 -label virtio_blk_0 -args instance=0
 	else
 		/bin/service -c up /sbin/at_wini -dev /dev/c0d0 -label at_wini_0
 		/bin/service -cr up /sbin/at_wini -dev /dev/c1d0 -label at_wini_1 -args instance=1
 	fi
+	/bin/umount /proc
+	/bin/service down procfs
 fi
 
 if [ X`/bin/sysenv arch` = Xearm ]