Brandon Bergren
8415f755f1
[PowerPC] Fix booke64 qemu infinite loop in L2 cache enable ...
Since qemu does not implement the L2 cache, we get stuck forever waiting
for a bit to be set when trying to invalidate it.
To prevent that, we should bail out if the L2 cache is missing.
One easy way to check this is L2CFG0 == 0 (since L2CSIZE always has at
least one bit set in a valid implementation)
(tested on qemu, rb800, and x5000)
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25225
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8415f755f1