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0a895c0d9b
Currently, the sev-guest driver is the only user of SNP guest messaging. The snp_guest_dev structure holds all the allocated buffers, secrets page and VMPCK details. In preparation for adding messaging allocation and initialization APIs, decouple snp_guest_dev from messaging-related information by carving out the guest message context structure(snp_msg_desc). Incorporate this newly added context into snp_send_guest_request() and all related functions, replacing the use of the snp_guest_dev. No functional change. Signed-off-by: Nikunj A Dadhania <nikunj@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Link: https://lore.kernel.org/r/20241009092850.197575-7-nikunj@amd.com