[Midnightbsd-cvs] src: boot/forth: Add virtual machine detection in the loader.

[laffer1 at midnightbsd.org]

Log Message:
-----------
Add virtual machine detection in the loader.  For QEMU, VBOX, VMware, or Parallels, set the hz setting to 100.  This will fix "time" issues automatically in these environments.

Modified Files:
--------------
    src/sys/boot/i386/loader:
        Makefile (r1.1.1.1 -> r1.2)
        loader.rc (r1.1.1.1 -> r1.2)

Added Files:
-----------
    src/sys/boot/forth:
        vm.4th (r1.1)

-------------- next part --------------
--- /dev/null
+++ sys/boot/forth/vm.4th
@@ -0,0 +1,35 @@
+: check-env? ( addr len addr len -- flag )
+	getenv
+	dup -1 <> if
+		compare 0= if
+			true exit
+		then
+	else
+		drop
+		2drop
+	then
+	false
+;
+
+: is-vm? ( -- flag )
+	s" QEMU  " s" hint.acpi.0.oem" check-env? if
+		true exit
+	then
+	s" VBOX  " s" hint.acpi.0.oem" check-env? if
+		true exit
+	then
+	s" VMware, Inc." s" smbios.system.maker" check-env? if
+		true exit
+	then
+	s" Parallels Software International Inc." s" smbios.bios.vendor"
+	    check-env? if
+		true exit
+	then
+	false
+;
+
+: setup-vm
+	is-vm? if
+		s" 100" s" hz" setenv
+	then
+;
Index: loader.rc
===================================================================
RCS file: /home/cvs/src/sys/boot/i386/loader/loader.rc,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -L sys/boot/i386/loader/loader.rc -L sys/boot/i386/loader/loader.rc -u -r1.1.1.1 -r1.2
--- sys/boot/i386/loader/loader.rc
+++ sys/boot/i386/loader/loader.rc
@@ -4,6 +4,10 @@
 \ Includes additional commands
 include /boot/loader.4th
 
+\ Virtual machine detection
+include /boot/vm.4th
+setup-vm
+
 \ Reads and processes loader.conf variables
 start
 
Index: Makefile
===================================================================
RCS file: /home/cvs/src/sys/boot/i386/loader/Makefile,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -L sys/boot/i386/loader/Makefile -L sys/boot/i386/loader/Makefile -u -r1.1.1.1 -r1.2
--- sys/boot/i386/loader/Makefile
+++ sys/boot/i386/loader/Makefile
@@ -73,7 +73,7 @@
 
 .PATH: ${.CURDIR}/../../forth 
 FILES=	loader loader.help loader.4th support.4th loader.conf
-FILES+= screen.4th frames.4th beastie.4th
+FILES+= screen.4th frames.4th beastie.4th vm.4th
 # XXX INSTALLFLAGS_loader= -b
 FILESMODE_loader= ${BINMODE} -b
 FILESDIR_loader.conf=	/boot/defaults