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authorBlue Swirl <blauwirbel@gmail.com>2011-08-01 21:26:03 +0000
committerBlue Swirl <blauwirbel@gmail.com>2011-08-01 21:26:03 +0000
commit67494323f2c782fe3e65c60529fe9dfa613fc500 (patch)
tree1e99ed4562eb475214f3923f8e5263acb04bf4ef /iov.c
parent927d721777e73339f73719f36eaf400ab641366c (diff)
Sparc: fix non-faulting unassigned memory accesses
Commit b14ef7c9ab41ea824c3ccadb070ad95567cca84e introduced cpu_unassigned_access() function. On Sparc, the function does not restore AREG0 used for global CPUState on function exit, causing bugs with non-faulting unassigned memory accesses. Alpha, Microblaze and MIPS are not affected. Fix by restoring AREG0 on exit. Remove excess saving by do_unassigned_access() functions. Also ignore unassigned accesses outside of CPU context. Reported-by: Bob Breuer <breuerr@mc.net> Tested-by: Bob Breuer <breuerr@mc.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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