From 38ad4f4b6cc713b3c42cb4252688ef5c296d7455 Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Tue, 10 Jul 2012 15:31:39 +0200 Subject: [PATCH] xen: enable platform-pci only in a Xen guest 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 Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/platform-pci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c index 2389e581e23c..97ca359ae2bd 100644 --- a/drivers/xen/platform-pci.c +++ b/drivers/xen/platform-pci.c @@ -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; -- 2.20.1