powerpc/powernv: Override pcibios_default_alignment() to force PCI devices to be page aligned

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Override pcibios_default_alignment() to set default alignment to PAGE_SIZE
for all PCI devices on PowerNV platform.  Thus sub-page BARs would not
share a page and could be mapped into guest when VFIO passthrough them.

Signed-off-by: Yongji Xie <elohimes@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Yongji Xie 2017-04-10 19:58:13 +08:00 • committed by Bjorn Helgaas

parent 0a701aa637

commit 3827463769

3 changed files with 17 additions and 0 deletions

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2

arch/powerpc/include/asm/machdep.h

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8

arch/powerpc/kernel/pci-common.c

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7

arch/powerpc/platforms/powernv/pci-ioda.c

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