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authorPeter Maydell <peter.maydell@linaro.org>2017-03-20 12:41:44 +0000
committerPeter Maydell <peter.maydell@linaro.org>2017-03-20 12:41:44 +0000
commit43ac65742319ef5ac4461daf43316b189cd21e89 (patch)
tree002d91e680d68c84c9583073482b75adb38b02fb /backends/cryptodev-builtin.c
parent001b3cab51ebfcb13e8dd03ea25bfa3bd0c517a3 (diff)
downloadfocaccia-qemu-43ac65742319ef5ac4461daf43316b189cd21e89.tar.gz
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arm: Don't decode MRS(banked) or MSR(banked) for M profile
M profile doesn't have the MSR(banked) and MRS(banked) instructions
and uses the encodings for different kinds of M-profile MRS/MSR.
Guard the relevant bits of the decode logic to make sure we don't
accidentally fall into them by accident on M-profile.

(The bit being checked for this (bit 5) is part of the SYSm field on
M-profile, but since no currently allocated system registers have
encodings with bit 5 of SYSm set, this hasn't been a problem in
practice.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1487616072-9226-3-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'backends/cryptodev-builtin.c')
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