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RE: [Xen-devel] OpenIPMI on dom0
| To: | "Andrew D. Ball" <aball@xxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] OpenIPMI on dom0 |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Mon, 14 Nov 2005 14:10:14 -0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Mon, 14 Nov 2005 14:10:21 +0000 |
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| Thread-index: | AcXpA5yNdw37BXJQRrKhQ0cJrwcOdQAIHk4g |
| Thread-topic: | [Xen-devel] OpenIPMI on dom0 |
> This may not be the best approach though, since the IPMI > drivers are not already patched for Xen and presumably > isa_memcpy_fromio() is a reasonable way to read memory in the > 0xf0000-0xfffff region. > > Why does isa_memcpy_fromio() not produce identical results > for the reserved 0xf0000-0xfffff section of memory in dom0 > and in a vanilla Linux 2.6.12.6 kernel? Try changing ISA_IO_BASE in include/asm-xen/asm-i386/io.h to #define __ISA_IO_base ((char __iomem *)(fix_to_virt(FIX_ISAMAP_BEGIN)) It's arguable that we'd be better off maping the bottom 1MB of machine memory at PAGE_OFFSET rather than a fixmap as this would mean fewer Linux changes... Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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