linux-kernel - Re: [PATCH] PCI/IOV: Decrease VF memory BAR size to save host memory occupied by PTEs

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Date:   Sun, 16 Oct 2022 23:26:48 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Rui Ma <Rui.Ma@....com>
Cc:     helgaas@...nel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, Alexander.Deucher@....com,
        bhelgaas@...gle.com
Subject: Re: [PATCH] PCI/IOV: Decrease VF memory BAR size to save host memory
 occupied by PTEs

Besides the various style issues:  I don't think we can just
hardcode specific devices in the PCIe core.  If we want to do this
we'll need something like PCIe extended capabilities or ACPI tables
to describe the behavior in a standardized way.