target/ppc: optimize p9 exception handling routines

Currently, p9 exception handling has multiple if-condition checks where
it does an indirect access to pending_interrupts and LPCR via env.
Pass the values during entry to avoid multiple indirect accesses.

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