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Ting-Wei Lan
146341187a
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. Running Xen with iommu=no-igfx is similar to running Linux with intel_iommu=igfx_off, which disables IOMMU for Intel 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 <lantw44@gmail.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Release-acked-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Kevin Tian <kevin.tian@intel.com>
xen-bugtool =========== The xen-bugtool command line application will collate the Xen dmesg output, details of the hardware configuration of your machine, information about the build of Xen that you are using, plus, if you allow it, various logs. The information collated can either be posted to a Xen Bugzilla bug (this bug must already exist in the system, and you must be a registered user there), or it can be saved as a .tar.bz2 for sending or archiving. The collated logs may contain private information, and if you are at all worried about that, you should not use this tool, or you should explicitly exclude those logs from the archive. xen-bugtool is wholly interactive, so simply run it, and answer the questions.