On Tue, 14 Apr 2020 16:30:05 -0400, Jon Derrick wrote: > Per PCIe 5.0 r1.0, Terms and Acronyms, Page 80: > > Reserved register fields must be read only and must return 0 (all 0's > for multi-bit fields) when read. Reserved encodings for register and > packet fields must not be used. Any implementation dependence on a > Reserved field value or encoding will result in an implementation that > is not PCI Express-compliant. > > This patch ensures reads will return 0 for any bit not in the Read-Only, > Read-Write, or Write-1-to-Clear bitmasks. > > Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx> > --- > drivers/pci/pci-bridge-emul.c | 30 +++++++++++++----------------- > 1 file changed, 13 insertions(+), 17 deletions(-) > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
