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bad9fa5662
In r361544, the pmap drivers were converted to ifuncs. When doing so, this changed the call type of pmap functions to be called via the secure-plt stubs. These stubs depend on the TOC base being loaded to r30 to run properly. On SMP AIM (i.e. a dual processor G4 or running 32-bit on G5), since the APs were being started up from the reset vector instead of going through __start, they had never had r30 initialized properly, so when the cpu_reset code in trap_subr32.S attempted to branch to pmap_cpu_bootstrap(), it was loading the target from the wrong location. Ensure r30 is set up directly in the cpu_reset trap code, so we can make PLT calls as normal. Fixes boot on my SMP G4. Reviewed by: jhibbits MFC after: 3 days Sponsored by: Tag1 Consulting, Inc. |
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