On 25/07/2015 17:57, Ting-Wei Lan wrote: > When using Linux >= 3.19 (commit 47591df) as dom0 on some Intel Ironlake > devices, It is possible to encounter graphics issues that make screen > unreadable or crash the system. It was reported in freedesktop bugzilla: > > https://bugs.freedesktop.org/show_bug.cgi?id=90037 > > As we still cannot find a proper fix for this problem, this patch adds > iommu=igfx option to control whether Intel graphics IOMMU is enabled on > these devices. Running Xen with iommu=no-igfx is similar to running > Linux with intel_iommu=igfx_off, which disables IOMMU for Intel Ironlake > GPU. This can be used by users to manually workaround the problem before > a fix is available for i915 driver. > > Signed-off-by: Ting-Wei Lan <lant...@gmail.com>
Reviewed-by: Andrew Cooper <andrew.coop...@citrix.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
