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author | Alexandru Elisei <alexandru.elisei@arm.com> | 2020-04-14 15:39:39 +0100 |
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committer | Will Deacon <will@kernel.org> | 2020-04-15 16:27:17 +0100 |
commit | 84998f21b3c758233e7d8b3d1681d69f9d65ce14 (patch) | |
tree | 50a1e166fa7b9c5bcf14fa10db1801c33e99d306 | |
parent | ed01a603ddd2dc6c35130ef9b73dc8b68fc3302d (diff) | |
download | kvmtool-84998f21b3c758233e7d8b3d1681d69f9d65ce14.tar.gz |
vfio/pci: Don't assume that only even numbered BARs are 64bit
Not all devices have the bottom 32 bits of a 64 bit BAR in an even
numbered BAR. For example, on an NVIDIA Quadro P400, BARs 1 and 3 are
64bit. Remove this assumption.
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
-rw-r--r-- | vfio/pci.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -920,8 +920,10 @@ static int vfio_pci_configure_dev_regions(struct kvm *kvm, for (i = VFIO_PCI_BAR0_REGION_INDEX; i <= VFIO_PCI_BAR5_REGION_INDEX; ++i) { /* Ignore top half of 64-bit BAR */ - if (i % 2 && is_64bit) + if (is_64bit) { + is_64bit = false; continue; + } ret = vfio_pci_configure_bar(kvm, vdev, i); if (ret) |