tree fa67606bc26bf02720fcbb43757760d894b7e8ee
parent cd07d7f9f5117954edd9a9bbd97b0442eecf5c49
author Peter Maydell <peter.maydell@linaro.org> 1594651036 +0100
committer Peter Maydell <peter.maydell@linaro.org> 1595241317 +0100

hw/arm/armsse: Assert info->num_cpus is in-bounds in armsse_realize()

In armsse_realize() we have a loop over [0, info->num_cpus), which
indexes into various fixed-size arrays in the ARMSSE struct.  This
confuses Coverity, which warns that we might overrun those arrays
(CID 1430326, 1430337, 1430371, 1430414, 1430430).  This can't
actually happen, because the info struct is always one of the entries
in the armsse_variants[] array and num_cpus is either 1 or 2; we also
already assert in armsse_init() that num_cpus is not too large.
However, adding an assert to armsse_realize() like the one in
armsse_init() should help Coverity figure out that these code paths
aren't possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200713143716.9881-1-peter.maydell@linaro.org