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Re: [Xen-devel] Xen with dom0 pvops on ultra-recent "git tip" kernel on x86_64
- To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
- From: Christophe Saout <christophe@xxxxxxxx>
- Date: Tue, 13 Jan 2009 17:57:26 +0100
- Delivery-date: Tue, 13 Jan 2009 08:58:14 -0800
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Hello,
> The X server crashes in some I/O port "inb()" command. Seems like the
> io permissions aren't correctly passed through or something. (iopl or
> ioperm or so) I'll try to debug a bit more later.
The native Xen kernel has an arch/x86/kernel/ioport-xen.c which calls:
HYPERVISOR_physdev_op(PHYSDEVOP_set_iobitmap, &set_iobitmap);
Is this a feature mabye still missing from the paravirtualized Xen?
If yes, what would it take? A new paravirt call?
Thanks,
Christophe
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