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Subject: Re: [PATCH v2 0/2] transport-pci: Introduce legacy registers access using AQ
On Mon, May 15, 2023 at 03:49:44PM +0000, Parav Pandit wrote: > All legacy interface via AQ. > All modern interface access via PCI or its own transport between driver and device. I am wondering however about the hypervisor notifications. Generally these are the most problematic aspect here I feel. For example, how does it interact with VIRTIO_F_NOTIF_CONFIG_DATA? And generally, having both guest and host be allowed to access device's BAR seems problematic. Can we reserve a PF BAR region for these things or is that too expensive? -- MST
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