On Thu, 7 Mar 2019 08:36:09 +0000 Julien Thierry <julien.thierry@xxxxxxx> wrote: Hi, > Linux has this convention that the lower 0x1000 bytes of the IO space > should not be used. (cf PCIBIOS_MIN_IO). > > Just allocate those bytes to prevent future allocation assigning it to > devices. > > Signed-off-by: Julien Thierry <julien.thierry@xxxxxxx> > --- > arm/pci.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arm/pci.c b/arm/pci.c > index 83238ca..559e0cf 100644 > --- a/arm/pci.c > +++ b/arm/pci.c > @@ -37,6 +37,9 @@ void pci__arm_init(struct kvm *kvm) > > /* Make PCI port allocation start at a properly aligned address */ > pci_get_io_space_block(align_pad); > + > + /* Convention, don't allocate first 0x1000 bytes of PCI IO */ > + pci_get_io_space_block(0x1000); Is this the same problem with mixing up I/O and MMIO space as in the other patch? io_space means MMIO, right? Cheers, Andre. > } > > void pci__generate_fdt_nodes(void *fdt)
