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Re: [Xen-devel] [RFC v2] misc/xenmicrocode: Upload /lib/firmware/<some blob> to the hypervisor

On 01/30/2015 03:37 PM, Andrew Cooper wrote:

The actions Xen needs to take are:

- Copy the buffer into Xen.
- Scan the buffer for the correct patch

Why not have the toolstack search for the right patch? Hypervisor will verify that it's appropriate but won't have to spend time scanning the (potentially large) buffer.

(The logic for scanning the buffer is in the hypervisor code but we could move it to a library)


- Rendezvous all online cpus in an IPI to apply the patch, and keep the
processors in until all have completed the patch.

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