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authorMichael S. Tsirkin <mst@redhat.com>2019-10-28 12:11:00 -0400
committerMichael S. Tsirkin <mst@redhat.com>2019-11-24 07:55:19 -0500
commitbc2cf84cc7b29349b6f7effdb955b83afaf298f7 (patch)
treee2d34258ead7ae4de950dfac78fb42d02e722e39
parent111d65c69c47090525eaa1ce43831e20657cbef3 (diff)
downloadvirtio-text-bc2cf84cc7b29349b6f7effdb955b83afaf298f7.tar.gz
pci: strengthen requirement of the correct subsystem id
If a hardware implementation of virtio does not have the correct subsystem id, then drivers can't report ir properly, or detect and work around bugs. Change the requirement from MAY to SHOULD. We can't make it a MUST since we did not require this historically. Fixes: https://github.com/oasis-tcs/virtio-spec/issues/61 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--content.tex2
1 files changed, 1 insertions, 1 deletions
diff --git a/content.tex b/content.tex
index 06bb4ca..535a3f4 100644
--- a/content.tex
+++ b/content.tex
@@ -562,7 +562,7 @@ Transitional PCI Device ID & Virtio Device \\
For example, the network card device with the Virtio Device ID 1
has the PCI Device ID 0x1041 or the Transitional PCI Device ID 0x1000.
-The PCI Subsystem Vendor ID and the PCI Subsystem Device ID MAY reflect
+The PCI Subsystem Vendor ID and the PCI Subsystem Device ID SHOULD reflect
the PCI Vendor and Device ID of the environment (for informational purposes by the driver).
Non-transitional devices SHOULD have a PCI Device ID in the range