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| author |   mikeb <mikeb@openbsd.org> | 2016-08-03 14:55:57 +0000 |
|---|---|---|
| committer | mikeb <mikeb@openbsd.org> | 2016-08-03 14:55:57 +0000 |
| commit | 4ef38d8395a08772f177cd28a89917eb0fc1960d (patch) | |
| tree | caa6aa1f3fd6018dd25bc382506e06e56f63df2b /sys/dev/acpi/files.acpi | |
| parent | Fold umass_atapi_attach() and umass_scsi_setup() into umass_scsi_attach() to (diff) | |
| download | wireguard-openbsd-4ef38d8395a08772f177cd28a89917eb0fc1960d.tar.xz wireguard-openbsd-4ef38d8395a08772f177cd28a89917eb0fc1960d.zip | |
Use an atomic operation to clear pending event bits
Pending event bits are located in a shared memory and are potentially
accessed by multiple CPUs running dom0 and the guest VM. It appears
that a failure to synchronize changes to this shared memory leads to
race conditions resulting in the guest missing out on notifications.
Diffstat (limited to 'sys/dev/acpi/files.acpi')
0 files changed, 0 insertions, 0 deletions