Re: [Intel-gfx] [PATCH v1] vfio/pci: Add support for opregion v2.0+

2020-12-03 Thread Alex Williamson
On Thu, 3 Dec 2020 09:21:03 + "Gao, Fred" wrote: > Thanks Alex for the timely review. > > > -Original Message- > > From: Alex Williamson > > Sent: Thursday, December 3, 2020 2:57 AM > > To: Gao, Fred > > Cc: k...@vger.kernel.org; intel-gfx@lists.freedesktop.org; Zhenyu Wang > > ;

Re: [Intel-gfx] [PATCH v1] vfio/pci: Add support for opregion v2.0+

2020-12-03 Thread Gao, Fred
Thanks Alex for the timely review. > -Original Message- > From: Alex Williamson > Sent: Thursday, December 3, 2020 2:57 AM > To: Gao, Fred > Cc: k...@vger.kernel.org; intel-gfx@lists.freedesktop.org; Zhenyu Wang > ; Fonn, Swee Yee > Subject: Re: [PATCH v1] vfio/pci: Add support for

Re: [Intel-gfx] [PATCH v1] vfio/pci: Add support for opregion v2.0+

2020-12-02 Thread Alex Williamson
On Thu, 3 Dec 2020 01:12:49 +0800 Fred Gao wrote: > When VBT data exceeds 6KB size and cannot be within mailbox #4 starting > from opregion v2.0+, Extended VBT region, next to opregion, is used to > hold the VBT data, so the total size will be opregion size plus > extended VBT region size. > >

[Intel-gfx] [PATCH v1] vfio/pci: Add support for opregion v2.0+

2020-12-02 Thread Fred Gao
When VBT data exceeds 6KB size and cannot be within mailbox #4 starting from opregion v2.0+, Extended VBT region, next to opregion, is used to hold the VBT data, so the total size will be opregion size plus extended VBT region size. For opregion 2.1+: since rvda is relative offset from opregion