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[Xen-devel] [PATCH][IOEMU] e1000 emulation

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH][IOEMU] e1000 emulation
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Mon, 25 Feb 2008 16:23:53 -0700
Delivery-date: Mon, 25 Feb 2008 15:24:22 -0800
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   The attached patch adds e1000 emulation to Xen.  This is a direct
port of the e1000 driver currently in Qemu CVS with extremely minimal
changes (as shown below).  This is useful for Xen as new OSes may not
support the old 100Mbps NICs we currently support (especially on
non-x86).  Drivers for e1000 should be more readily available.

The diff from Qemu CVS is as follows (for reference only):

--- e1000.c     2008-02-25 14:12:52.000000000 -0700
+++ e1000.c     2008-02-25 14:14:51.000000000 -0700
@@ -23,9 +23,7 @@
-#include "hw.h"
-#include "pci.h"
-#include "net.h"
+#include "vl.h"
 #include "e1000_hw.h"
@@ -153,7 +151,7 @@
     if (val)
         val |= E1000_ICR_INT_ASSERTED;
     s->mac_reg[ICR] = val;
-    qemu_set_irq(s->dev.irq[0], (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0);
+    pci_set_irq(&s->dev, 0, (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0);
 static void

Both Linux and Windows Server 2008 guests work with this device model on
Xen/ia64.  Please apply the attached patch.  Thanks,


Attachment: e1000.patch
Description: Text Data

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