Messages in this thread | | | From | Dexuan Cui <> | Subject | RE: [PATCH] PCI: hv: Detect and fix Hyper-V PCI domain number collision | Date | Wed, 22 May 2019 03:14:15 +0000 |
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> From: linux-hyperv-owner@vger.kernel.org > Sent: Sunday, May 19, 2019 3:29 PM > > Due to Azure host agent settings, the device instance ID's bytes 8 and 9 > are no longer unique. This causes some of the PCI devices not showing up > in VMs with multiple passthrough devices, such as GPUs. So, as recommended > by Azure host team, we now use the bytes 4 and 5 which usually provide > unique numbers. > > In the rare cases of collision, we will detect and find another number > that is not in use. > Thanks to Michael Kelley <mikelley@microsoft.com> for proposing this idea. > > Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
The patch looks good to me.
Reviewed-by: Dexuan Cui <decui@microsoft.com>
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