X-Git-Url: http://git.etherboot.org/people/lynusvaz/gpxe.git/blobdiff_plain/a677f1bfd3368743553bbf6363ba7c4763fefe78..a30c70727a53b920a770a29569ddc9ff2d3b4fb6:/contrib/bochs/README.qemu

diff --git a/contrib/bochs/README.qemu b/contrib/bochs/README.qemu
index ae2984ca..2582f62b 100644
--- a/contrib/bochs/README.qemu
+++ b/contrib/bochs/README.qemu
@@ -14,14 +14,21 @@ To get qemu running is fairly simple:
       cvs -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu \
            co qemu
 
+2a. Patch the qemu code.  There is currently a bug that causes qemu to
+    execute Etherboot incredibly slowly.  The bug seems to be related
+    to the relative prioritisation of CPU and I/O operations within
+    qemu.  This patch (which I found via Google) isn't a proper fix,
+    but it does work around the problem:
+      patch -p0 < qemu-patch
+
 3.  Configure qemu with
       pushd qemu
-      ./configure --enable-system --enable-profiler 
+      ./configure --enable-system
       popd
 
-      Note that qemu will not compile with gcc4; if your system's
-      default compiler is gcc4 then specify the path to gcc3 using
-      e.g. --cc=gcc-3.3.6
+    Note that qemu will not compile with gcc4; if your system's
+    default compiler is gcc4 then specify the path to gcc3 using
+    e.g. --cc=gcc-3.3.6
 
 4.  Build qemu:
       make -C qemu
@@ -47,14 +54,13 @@ To get qemu running is fairly simple:
 
 8.  Build Etherboot floppy disk images and pad to 1.44MB
       pushd ../../src
-      make bin/rtl8139.dsk
-      ./util/dskpad.pl bin/rtl8139.dsk
+      make bin/rtl8139.pdsk
       popd
 
 9.  Start qemu
       ./qemu/i386-softmmu/qemu -L qemu/pc-bios \
 			       -net nic,model=rtl8139 -net tap,ifname=tap0 \
-			       -boot a -fda ../../src/bin/rtl8139.dsk 
+			       -boot a -fda ../../src/bin/rtl8139.pdsk 
 
 You should see qemu start up, load up Etherboot and attempt to boot
 from the network.