[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [virtio-comment] Re: [virtio-dev] [PATCH 08/11] transport-pci: Introduce virtio extended capability
On Tue, Apr 11, 2023 at 02:07:27PM +0000, Parav Pandit wrote: > > > > From: virtio-comment@lists.oasis-open.org <virtio-comment@lists.oasis- > > open.org> On Behalf Of Michael S. Tsirkin > > > > > > > > > now, imagine someone building a new device. if existing drivers are > > > > not a concern, it is possible to move capabilities all to extended > > > > space. is that possible while keeping the bios working? > > > > > > > unlikely as bios is looking in the legacy section. > > > > what do you mean by the legacy section? > > > Existing virtio PCI capabilities which are in the PCI capabilities region in first 256 bytes of the PCI config space. well, of course, my question was for a new, future device, can we put all capabilities in the extended space? will we be able to teach bios to access these? > > > New capabilities like legacy (and pasid) has no backward compat > > > requirement from bios and drivers. > > > so they can start from new. > > > > sure.
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]