tree c2c3a476280782fc624e689ac14eef1e835d577d
parent 99ea316e2a6180a8318f47a25c4a13d80ecf8ba4
author Nicholas Piggin <npiggin@gmail.com> 1686665783 +1000
committer Nicholas Piggin <npiggin@gmail.com> 1710262024 +1000

target/ppc: Prevent supervisor from modifying MSR[ME]

Prevent guest state modifying the MSR[ME] bit. Per ISA:

  An attempt to modify MSR[ME] in privileged but non-hypervisor state
  is ignored (i.e., the bit is not changed).

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>