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xen-devel
[Xen-devel] [PATCH 0/4] CPU online/offline support in Xen
Hi, Keir,
The following patches enable Xen to online/offline a physical CPU. This
feature will be needed by possibly CPU hot-plug and RAS features.
Some code of cpu online/offline is already in Xen, ever since S3 feature
was added to Xen. This patch series only adds the missing part.
Note: We only add the code to implement the function that actually
online/offline a CPU. The patches for tests are only served as a test
purpose. We do the tests by hooking online/offline decision to vcpu
online/offline path in Dom0. Thus, writes to
/sys/devices/system/cpu/cpuX/online will online/offline the vcpu, as
well as physical cpu.
Here is the description of the patches.
cpu_offline.patch Implements cpu offline feature
cpu_online.patch Implements cpu online feature
cpu_online_offline_test.patch Used for tests -- Xen part
cpu_online_offline_kernel.patch Used for tests -- Dom0 kernel part
Best Regards
Haitao Shan
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