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KVM_GET_MSR_INDEX_LIST does not consistently include all guest-programmable MTRR MSRs. During save/restore while booting, the VMM initially sets only MSR_MTRRdefType, then guest firmware or other early boot code can program additional MTRR state before the snapshot is taken. If those MSRs are missing from the vCPU MSR buffer, snapshot omits part of the guest's MTRR configuration and restore resumes with an incomplete MTRR map. Add the guest-programmable MTRR MSRs to the KVM MSR index list used to build the vCPU MSR buffer so the existing snapshot/restore path preserves the guest's MTRR state. On-behalf-of: SAP leander.kohler@sap.com Signed-off-by: Leander Kohler <leander.kohler@cyberus-technology.de>