opnsense-src/sys/dev/xen
Roger Pau Monné bc9a5b0497 xen/acpi: only evaluate Processor objects matching online CPUs
Current Xen Processor driver will evaluate any Processor object on the
ACPI tables regardless of whether the processor is online or not.
Avoid doing so for processors that are not online, as evaluating
methods of processors that are not online could lead to accesses to
invalid memory, and in any case the data that the driver fetches from
the Processor ACPI object only makes sense for processors that are
online.

Note the CPU related data fetched from Xen using XENPF_get_cpuinfo
hypercall could be cached, I leave that as a future optimization.

Sponsored by: Citrix Systems R&D
Fixes: b93f47eaee ('xen/acpi: upload Cx and Px data to Xen')
2022-11-29 16:36:34 +01:00
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balloon
blkback
blkfront
bus
console
control
cpu
debug
efi
evtchn
gntdev
grant_table
netback
netfront
privcmd
timer
xenpci
xenstore