[Qemu-devel] [Bug 608107] Re: ppc fails to clear MSR_POW when incurring exception

[Samuel Bronson]

** Tags added: ppc

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https://bugs.launchpad.net/bugs/608107

Title:
  ppc fails to clear MSR_POW when incurring exception

Status in QEMU:
  Confirmed

Bug description:
  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.

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