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xen: enable platform-pci only in a Xen guest

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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 <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
This commit is contained in:
Olaf Hering 2012-07-10 15:31:39 +02:00 • committed by Konrad Rzeszutek Wilk
commit 38ad4f4b6c
1 changed files with 3 additions and 0 deletions
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3
drivers/xen/platform-pci.c
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@ -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;