Re: [PATCH Part2 v5 34/45] KVM: SVM: Do not use long-lived GHCB map while setting scratch area

Sean Christopherson
2021-10-13T21:45:48Z

On Fri, Aug 20, 2021, Brijesh Singh wrote:
> The setup_vmgexit_scratch() function may rely on a long-lived GHCB
> mapping if the GHCB shared buffer area was used for the scratch area.
> In preparation for eliminating the long-lived GHCB mapping, always
> allocate a buffer for the scratch area so it can be accessed without
> the GHCB mapping.

Would it make sense to post this patch and the next (Remove the long-lived GHCB
host map) in a separate mini-series? It's needed for SNP, but AFAICT there's
nothing that depends on SNP. Getting this merged ahead of time would reduce the
size of the SNP series by a smidge.