From: Matthew Wilcox <[email protected]> The Generation 2 Hyper-V virtual machine does not emulate PCI. This check causes the call to pcibios_resource_survey() to be skipped, and pcibios_resource_survey() calls e820_reserve_resources_late(), which is where PMEM resources are added to the resource tree. With this patch, the PMEM devices now show up.
Signed-off-by: Matthew Wilcox <[email protected]> --- arch/x86/pci/common.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 7b6a9d1..d39e799 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -516,11 +516,6 @@ void __init pcibios_set_cache_line_size(void) int __init pcibios_init(void) { - if (!raw_pci_ops && !raw_pci_ext_ops) { - printk(KERN_WARNING "PCI: System does not support PCI\n"); - return 0; - } - pcibios_set_cache_line_size(); pcibios_resource_survey(); -- 2.8.1
