blob: e1ae515b0932a2a242ad75b9cc40233b4052828b (
plain) (
blame)
1
2
3
4
5
6
|
ppc fails to clear MSR_POW when incurring exception
QEMU VERSION: 0.12.4
According to FreeScale's 'Programming Environments Manual for 32-bit Implementations of the PowerPC Architecture' [MPCFPE32B, Rev.3, 9/2005], section 6.5, table 6-7, an interrupt resets MSR_POW to zero but qemu-0.12.4 fails to do so.
Resetting the bit is necessary in order to bring the processor out of power-management since otherwise it goes to sleep right away in the exception handler, i.e., it is impossible to leave PM-mode.
|