* [kvm-ppc-devel] updated patches (nasty bug fixed)
@ 2008-02-26 23:04 Hollis Blanchard
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From: Hollis Blanchard @ 2008-02-26 23:04 UTC (permalink / raw)
To: kvm-ppc
http://penguinppc.org/~hollisb/kvm/
I just fixed a nasty bug in which the changes to nonvolatile registers
used in "update" form load/store MMIO instructions wouldn't be visible
in the guest. This caused all sorts of nastiness, especially visible
when the guest kernel timer tick code did a BUG_ON(!irqs_disabled),
since the guest MSR had somehow been corrupted.
Also committed various cleanups along the way, and updated to latest KVM
tip. Note: I had to hack a
#define KVM_PAGES_PER_HPAGE (1<<31)
in order to build.
Our current bug occurs when guest userspace continuously writes to the
UART, which ends up "pausing" all output. Apparently UART IRQs are
getting lost somewhere...
--
Hollis Blanchard
IBM Linux Technology Center
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2008-02-26 23:04 [kvm-ppc-devel] updated patches (nasty bug fixed) Hollis Blanchard
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