On Thu, Aug 18, 2016 at 12:12 PM, Matthew Wilcox <[email protected]> wrote: > 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();
Is this for the memmap= kernel command line option or the ACPI NFIT method for defining NVDIMM resources?
