Red Hat Bugzilla – Bug 680983
RFE: ACPI doesn't use global lock
Last modified: 2013-11-05 17:30:06 EST
Description of problem:
We don't seem to be providing or making use of the ACPI global lock when manipulating data structures shared between qemu and the OSPM. For instance, piix4_device_hotplug clears and sets bits in pci0_status that could be simultaneously in use by the OSPM. It seems like we need to add global lock support and audit all shared data accesses for such races.
Version-Release number of selected component (if applicable):
Steps to Reproduce: