Xen ARM TODO: Difference between revisions
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Physical and virtual ITS support for GICv3. |
Physical and virtual ITS support for GICv3. |
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|References=Work underway: http://marc.info/?i=1426775889-29442-1-git-send-email-vijay.kilari%40gmail.com |
|References=Work underway: http://marc.info/?i=1426775889-29442-1-git-send-email-vijay.kilari%40gmail.com |
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|Project=Expose Wallclock time to guests |
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|Desc=Current Xen on ARM does not popular the wallclock time fields of the shared info with anything useful. It should do so... |
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|References=Partial/incomplete code http://article.gmane.org/gmane.comp.emulators.xen.devel/220265 |
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Rather than parsing the DTB early in asm to get the command line it would probably be sufficient to have a magic hex byte at a specific offset which could be edited by a simple tool. |
Rather than parsing the DTB early in asm to get the command line it would probably be sufficient to have a magic hex byte at a specific offset which could be edited by a simple tool. |
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|References=http://lists.xen.org/archives/html/xen-devel/2014-02/msg01880.html |
|References=http://lists.xen.org/archives/html/xen-devel/2014-02/msg01880.html |
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|Project=Investigation on HCR.FB |
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|Desc=Setting HCR.FB will upgrade local flush instructions (TLB, instruction cache, branch predictor) to innershareable. It would be nice to benchmark the performance impact on a UP-aware kernel and see if this could be reduced by flushing when a vCPU is migrating to another physical CPUs. |
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|References=http://lists.xen.org/archives/html/xen-devel/2016-04/msg03157.html |
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Latest revision as of 10:22, 27 April 2016
This is a list of open work items and known bugs for the Xen on ARM with virtualization extension project.
In progress
Open Work Items
Save/restore and migration
| Contact: xen-devel@lists.xen.org |
| Description: Make VM save/restore and VM migration work on ARM. |
| References: An initial prototype was written a couple of years ago for arm32 but never completed: http://lists.xen.org/archives/html/xen-devel/2014-06/msg02076.html |
PCI device assignment to DomUs
| Contact: xen-devel@lists.xen.org |
| Description: Assign one or more devices to an unprivileged guest, re-program the SMMU accordingly. |
| References: Not specified, useful references. |
ITS support
| Contact: xen-devel@lists.xen.org |
| Description: Physical and virtual ITS support for GICv3. |
| References: Work underway: http://marc.info/?i=1426775889-29442-1-git-send-email-vijay.kilari%40gmail.com |
More flexible early printk support
| Contact: xen-devel@lists.xen.org |
| Description: Allow a single Xen binary to support multiple platforms for early_printk Rather than parsing the DTB early in asm to get the command line it would probably be sufficient to have a magic hex byte at a specific offset which could be edited by a simple tool. |
| References: http://lists.xen.org/archives/html/xen-devel/2014-02/msg01880.html |
Investigation on HCR.FB
| Contact: xen-devel@lists.xen.org |
| Description: Setting HCR.FB will upgrade local flush instructions (TLB, instruction cache, branch predictor) to innershareable. It would be nice to benchmark the performance impact on a UP-aware kernel and see if this could be reduced by flushing when a vCPU is migrating to another physical CPUs. |
| References: http://lists.xen.org/archives/html/xen-devel/2016-04/msg03157.html |
