kernel: Change the location of the VMSA page

coconut-svsm / svsm

COCONUT-SVSM

MIT License

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kernel: Change the location of the VMSA page #301

Closed msft-jlange closed 8 months ago

msft-jlange commented 8 months ago

Certain hypervisors today impose a restriction that a VMSA page cannot be aligned to a 2 MB boundary. This change adjusts the layout of the SVSM physical memory block so the VMSA is located at the top, not the base.