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Roger Pau Monné
0426787629
Several people have reported hardware issues (malfunctioning USB controllers) due to iommu page faults on Intel hardware. Those faults are caused by missing RMRR (VTd) entries in the ACPI tables. Those can be worked around on VTd hardware by manually adding RMRR entries on the command line, this is however limited to Intel hardware and quite cumbersome to do. In order to solve those issues add a new dom0-iommu=map-reserved option that identity maps all regions marked as reserved in the memory map. Note that regions used by devices emulated by Xen (LAPIC, IO-APIC or PCIe MCFG regions) are specifically avoided. Note that this option is available to all Dom0 modes (as opposed to the inclusive option which only works for PV Dom0). Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Jan Beulich <jbeulich@suse.com> Acked-by: Julien Grall <julien.grall@arm.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Acked-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.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.