Re: [RFC PATCH V4 08/17] x86/hyperv: Initialize cpu and memory for sev-snp enlightened guest

From: Tianyu Lan
Date: Tue Apr 18 2023 - 10:13:35 EST




On 4/17/2023 8:49 PM, Michael Kelley (LINUX) wrote:
Why is the first map entry being skipped?
The first entry is populated with processor count by Hyper-V.
Perhaps add a comment to acknowledge that the behavior
is a bit unexpected:

The 0th entry in the memory layout array contains just a 32-bit
processor count. Read that value and then skip over the reminder
of the 0th entry. Start processing memory_map_entry's with array
element 1.


Good suggestion! Will update in the next version.