On May 20, 2011, at 2:00 PM, Scott Wood wrote:
In general we will not have EE soft-disabled or be napping when
these exceptions happen, but still it is not correct.
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The guest doorbell exceptions can only be triggered with MSR[GS]=3D1,
and thus for host kernel nesting purposes are base-level exceptions.
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Note that ehpriv and hypercall are triggerable from normal userspace.
I tested that the process gets properly signalled in this case.
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Signed-off-by: Scott Wood <redacted>
---
arch/powerpc/include/asm/reg_booke.h | 2 +
arch/powerpc/kernel/exceptions-64e.S | 67 =
++++++++++++++++++++++++++--------
2 files changed, 53 insertions(+), 16 deletions(-)
Can you look at a similar patch for 32-bit fsl-booke so we handle HV =
exceptions if they happen to get generated, maybe something already =
exists for KVM.
- k=