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| author | Sam Bobroff | 2017-04-27 08:32:03 +0200 |
|---|---|---|
| committer | David Gibson | 2017-05-11 01:45:15 +0200 |
| commit | 229e16fd247c7d39822627916d18b52f733cbfa1 (patch) | |
| tree | 07f616752167eb37f19eb55eed6651db2b1f9122 /roms | |
| parent | ppc/xics: Fix stale irq->status bits after get (diff) | |
| download | qemu-229e16fd247c7d39822627916d18b52f733cbfa1.tar.gz qemu-229e16fd247c7d39822627916d18b52f733cbfa1.tar.xz qemu-229e16fd247c7d39822627916d18b52f733cbfa1.zip | |
ppc/xics: preserve P and Q bits for KVM IRQs
Kernel commit 17d48610ae0f ("KVM: PPC: Book 3S: XICS: Implement ICS
P/Q states") added new bits to the state used by KVM IRQs. Currently,
QEMU does not preserve these bits, so migrating (or otherwise saving
and restoring) the guest state causes the P and Q bits to be cleared.
Clearing the P bit has no effect, because the kernel will set it based
on other data, but the loss of a set Q bit will cause a lost
interrupt.
This patch preserves the P and Q bits, correcting the problem.
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'roms')
0 files changed, 0 insertions, 0 deletions