On 14/09/2015 16:58, Will Deacon wrote:
The Xen ctxt switch code[0] has DACR_EL2 in the midst of it all, and
certainly followed by some sysregs, which I've got my fingers crossed
happens to be sufficient (other than maybe adding a comment).
It looks like you restore CONTEXTIDR_EL1 fairly late, so you should be
ok.
It may be worth to have a comment in the code explaining the errata to
avoid introduce by inadvertence if we plan to re-order the context switch.
I can send a patch for that.
Regards,
--
Julien Grall
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