Emilio G. Cota fc30b3d5cf translate-all: exit from tb_phys_invalidate if qht_remove fails ... Two or more threads might race while invalidating the same TB. We currently do not check for this at all despite taking tb_lock, which means we would wrongly invalidate the same TB more than once. This bug has actually been hit by users: I recently saw a report on IRC, although I have yet to see the corresponding test case. Fix this by using qht_remove as the synchronization point; if it fails, that means the TB has already been invalidated, and therefore there is nothing left to do in tb_phys_invalidate. Note that this solution works now that we still have tb_lock, and will continue working once we remove tb_lock. Backports commit cc689485ee3e9dca05765326ee8fd619a6ec48f0 from qemu		2018-03-15 15:51:58 -04:00
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tcg	translate-all: exit from tb_phys_invalidate if qht_remove fails	2018-03-15 15:51:58 -04:00
Makefile.objs	tcg: Add generic translation framework	2018-03-04 14:31:16 -05:00