enable acpi-only booting.  there are some other fixes,
including using qallocb.

- erik

Reference: /n/atom/patch/applied2013/nixacpienable
Date: Sun Sep  8 04:48:39 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /sys/src/nix/k10/cpu	Sun Sep  8 04:48:19 2013
+++ /sys/src/nix/k10/cpu	Sun Sep  8 04:48:19 2013
@@ -68,8 +68,8 @@
 	sdloop
 
 misc +dev
-	mp		mpacpi lapic ioapic msi pci sipi
-#	acpi		lapic ioapic msi pci sipi
+#	mp		mpacpi lapic ioapic msi pci sipi
+	acpi		lapic ioapic msi pci sipi
 
 boot cpu
 	il
--- /sys/src/nix/k10/term	Sun Sep  8 04:48:19 2013
+++ /sys/src/nix/k10/term	Sun Sep  8 04:48:19 2013
@@ -17,6 +17,7 @@
 #	segment
 	acpi
 	audio
+	ws
 
 	ether		netif
 	cec
@@ -34,8 +35,8 @@
 
 uart +dev
 	uarti8250
-	uartpci		pci	uartp8250
 	uartox958	pci	uartp8250
+	uartpci		pci	uartp8250
 
 vga +dev
 	vgavesa
@@ -74,8 +75,8 @@
 	sdloop
 
 misc +dev
-	mp		mpacpi lapic ioapic msi pci sipi
-#	acpi		lapic ioapic msi pci sipi
+#	mp		mpacpi lapic ioapic msi pci sipi
+	acpi		lapic ioapic msi pci sipi
 
 boot terminal
 	il
@@ -84,7 +85,7 @@
 	bootterm.out boot
 	/amd64/bin/auth/factotum factotum
 	/amd64/bin/ip/ipconfig ipconfig
-	/amd64/bin/usb/usbd
+	/amd64/bin/usb/usbd usbd
 
 # cpuserver = 0 is different from boot where we need cpuflag.
 conf
@@ -141,7 +142,7 @@
 
 port
 	alarm
-	allocb
+	qallocb
 	chan
 	dev
 	devtab