pkg/ifuzz/powerpc: fuzz the machine state register (MSR)

MSR is an SPR (Special Purpose Register) which controls endianness,
32/64 bits, privilege state and other CPU state bits. Some bits can be
changed by the "mtmsr" instruction ("Move To MSR") but for the privilege
bits "rfid" ("Return From Interrrupt Doubleword") needs to be used and
SRR0/SRR1 SPRs need to be preloaded with the desired mode and an address
to jump.

This adds an "rfid" pseudo instruction.

Signed-off-by: Alexey Kardashevskiy <aik@linux.ibm.com>

0 files changed, 0 insertions, 0 deletions