UefiCpuPkg/MpLib: add support to register GHCB GPA when SEV-SNP is enabled
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275 An SEV-SNP guest requires that the physical address of the GHCB must be registered with the hypervisor before using it. See the GHCB specification section 2.3.2 for more details. Cc: Michael Roth <michael.roth@amd.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Min Xu <min.m.xu@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Erdem Aktas <erdemaktas@google.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Ray Ni <ray.ni@Intel.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
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@@ -222,6 +222,7 @@ typedef struct {
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//
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BOOLEAN Enable5LevelPaging;
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BOOLEAN SevEsIsEnabled;
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BOOLEAN SevSnpIsEnabled;
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UINTN GhcbBase;
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} MP_CPU_EXCHANGE_INFO;
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@@ -291,6 +292,7 @@ struct _CPU_MP_DATA {
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BOOLEAN WakeUpByInitSipiSipi;
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BOOLEAN SevEsIsEnabled;
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BOOLEAN SevSnpIsEnabled;
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UINTN SevEsAPBuffer;
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UINTN SevEsAPResetStackStart;
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CPU_MP_DATA *NewCpuMpData;
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