WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] [PATCH 1/5] xen-pcifront: Update warning comment to use 'e82

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.

CC: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
CC: linux-pci@xxxxxxxxxxxxxxx
CC: stable@xxxxxxxxxx
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 drivers/pci/xen-pcifront.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 492b7d8..659efd1 100644
--- 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",
                                        pci_name(dev), i);
                        }
                }
-- 
1.7.4.1


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel