On Wed, 2011-08-24 at 18:31 -0400, Konrad Rzeszutek Wilk wrote:
> With Xen changeset 23428 "libxl: Add 'e820_host' option to config file"
> the E820 as seen from the host can now be passed into the guest.
> This means that a PV guest can now:
> - Use the correct PCI I/O gap. Before these patches, Linux guest would
> boot up and would tell:
> [ 0.000000] Allocating PCI resources starting at 40000000 (gap: 40000000:c0000000)
> while in actuality the PCI I/O gap should have been:
> [ 0.000000] Allocating PCI resources starting at b0000000 (gap: b0000000:4c000000)
> - The PV domain with PCI devices was limited to 3GB. It now can be booted
> with 4GB, 8GB, or whatever number you want. The PCI devices will now _not_ conflict
> with System RAM. Meaning the drivers can load.
[]
> diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
[]
> @@ -401,8 +401,8 @@ static int pcifront_claim_resource(struct pci_dev *dev, void *data)
> pci_name(dev), i);
> if (pci_claim_resource(dev, i)) {
> dev_err(&pdev->xdev->dev, "Could not claim "
> - "resource %s/%d! Device offline. Try "
> - "giving less than 4GB to domain.\n",
> + "resource %s/%d! Device offline. Try"
> + "using e820_host=1 in the guest config.\n",
Trivia: You lost the space after "Try".
It's generally better not to split format strings into
multiple pieces.
Perhaps:
dev_err(&pdev->xdev->dev, "Could not claim resource %s/%d! Device offline. Try using e820_host=1 in the guest config.\n",
or
dev_err(&pdev->xdev->dev, "Could not claim resource %s/%d! "
"Device offline. Try using e820_host=1 in the guest config.\n",
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