Re: [PATCH Part2 RFC v4 00/40] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support

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On 7/7/21 11:35 AM, Brijesh Singh wrote:
> Changes since v3:
>  * Add support for extended guest message request.
>  * Add ioctl to query the SNP Platform status.
>  * Add ioctl to get and set the SNP config.
>  * Add check to verify that memory reserved for the RMP covers the full system RAM.
>  * Start the SNP specific commands from 256 instead of 255.
>  * Multiple cleanup and fixes based on the review feedback.
> 
> Changes since v2:
>  * Add AP creation support.
>  * Drop the patch to handle the RMP fault for the kernel address.
>  * Add functions to track the write access from the hypervisor.
>  * Do not enable the SNP feature when IOMMU is disabled or is in passthrough mode.
>  * Dump the RMP entry on RMP violation for the debug.
>  * Shorten the GHCB macro names.
>  * Start the SNP_INIT command id from 255 to give some gap for the legacy SEV.
>  * Sync the header with the latest 0.9 SNP spec.

What happened to the THP splitting on RMP violations?




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