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[Xen-ia64-devel] Transparent virtualization and serial port.
| To: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx, "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>, Alex Williamson <alex.williamson@xxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel] Transparent virtualization and serial port. |
| From: | Tristan Gingold <Tristan.Gingold@xxxxxxxx> |
| Date: | Tue, 8 Aug 2006 12:54:22 +0200 |
| Delivery-date: | Tue, 08 Aug 2006 03:49:57 -0700 |
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Hi,
using this small patch:
diff -r 8370553249bb xen/arch/ia64/xen/mm.c
--- a/xen/arch/ia64/xen/mm.c Tue Aug 08 10:59:08 2006 +0200
+++ b/xen/arch/ia64/xen/mm.c Tue Aug 08 11:00:28 2006 +0200
@@ -908,6 +908,9 @@ ioports_deny_access(struct domain *d, un
io_ports_base = __pa(ia64_iobase);
else
io_ports_base = IO_PORTS_PADDR;
+
+ if (d == dom0 && fp == 0x2f8 && lp == 0x2ff)
+ fp = 0x2f0;
fp_offset = IO_SPACE_SPARSE_ENCODING(fp) & PAGE_MASK;
lp_offset = PAGE_ALIGN(IO_SPACE_SPARSE_ENCODING(lp));
I was able to use linux compiled with serial port and xencons enabled.
This patch is a real kludge but if it is worth we can try to correctly disable
serial port for xen console.
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