Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

xen: enable platform-pci only in a Xen guest

Browse source 
While debugging kexec issues in a PVonHVM guest I modified
xen_hvm_platform() to return false to disable all PV drivers. This
caused a crash in platform_pci_init() because it expects certain data
structures to be initialized properly.

To avoid such a crash make sure the driver is initialized only if
running in a Xen guest.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Olaf Hering 2012-07-10 15:31:39 +02:00 committed by Konrad Rzeszutek Wilk
parent 254d1a3f02
commit 38ad4f4b6c
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/xen/platform-pci.c
View file

@ -109,6 +109,9 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
long mmio_addr, mmio_len;
unsigned int max_nr_gframes;
if (!xen_domain())
return -ENODEV;
i = pci_enable_device(pdev);
if (i)
return i;