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Re: [Xen-users] Re: [Xen-devel] Xen - Guest memory allocation
| To: | "dinesh chandrasekaran" <dinesh_chan8@xxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] Re: [Xen-devel] Xen - Guest memory allocation |
| From: | "Grzegorz Miłoś" <gm281@xxxxxxxxx> |
| Date: | Fri, 20 Jun 2008 18:03:20 +0100 |
| Cc: | xen developers community <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen users community <xen-users@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 20 Jun 2008 10:03:44 -0700 |
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>> Why do you want to restrict DomU to use frames from certain range >> only? What's the logic behind that? > > Im trying to allocate memory for domUs from memory behind a PCI device. The > machine_addr_start is obtained by probing the device (as I know the vendor > and device info) during xen boot-up. That's what I was suspecting. I think you should give PCI passthrough a go first. PCI passthrough allows a PCI device to be hidden away from Dom0 and exported to a DomU. You achieve the first by passing pciback.hide=(XX:XX.X) option to Dom0 kernel and adding pci = [ 'XX:XX.X′ ] to DomU config file. You'll also need CONFIG_XEN_PCIDEV_FRONTEND=y and CONFIG_XEN_PCIDEV_BACKEND=y in your DomU and Dom0 kernel configs. Hope this helps Gr(z)egor(z) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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