On 2/20/23 10:37, Michael Roth wrote: > The RMP check is enforced as soon as SEV-SNP is enabled. Not every memory > access requires an RMP check. In particular, the read accesses from the > hypervisor do not require RMP checks because the data confidentiality is > already protected via memory encryption. When hardware encounters an RMP > checks failure, it raises a page-fault exception. If RMP check failure > is due to the page-size mismatch, then split the large page to resolve > the fault. What does this all _mean_? When does the kernel need to care about a "page-size mismatch"?
