Subject: port-i386/13867: pchb RNG lacks support for the 82443BX chipset
To: None <>
From: None <>
List: netbsd-bugs
Date: 09/05/2001 02:13:02
>Number:         13867
>Category:       port-i386
>Synopsis:       pchb_rnd.c doesn't have a hook to use the RNG on the 82443BX chipset
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Sep 04 19:08:01 PDT 2001
>Originator:     Sean Davis
>Release:        20010904
System: NetBSD 1.5X NetBSD 1.5X (EROS) #0: Tue Sep 4 21:23:43 EDT 2001 i386
Architecture: i386
Machine: i386
the random number generator on the 82443BX host bridge is not supported in
pchb_rnd.c, but once a hook is added, it is enabled and initialized on
bootup, and works perfectly as a source of entropy.
boot a box with that chipset and notice that you dont see it enable the
random number generator? I dunno
cd to /sys/arch/i386/pci, and apply the following patch:
*** CUT HERE; rnd_82443BX.diff ***
--- pchb_rnd.c.orig	Tue Sep  4 21:58:42 2001
+++ pchb_rnd.c	Tue Sep  4 21:59:13 2001
@@ -67,6 +67,7 @@
 		case PCI_PRODUCT_INTEL_82820_MCH:
 		case PCI_PRODUCT_INTEL_82840_HB:
+		case PCI_PRODUCT_INTEL_82443BX:
 			sc->sc_st = pa->pa_memt;
 			if (bus_space_map(sc->sc_st, I82802_IOBASE,
 			    I82802_IOSIZE, 0, &sc->sc_sh) != 0) {
*** END rnd_82443BX.diff ***