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-rw-r--r--OvmfPkg/ResetVector/ResetVector.nasmb17
1 files changed, 17 insertions, 0 deletions
diff --git a/OvmfPkg/ResetVector/ResetVector.nasmb b/OvmfPkg/ResetVector/ResetVector.nasmb
index 75cfe16654..bfb77e4391 100644
--- a/OvmfPkg/ResetVector/ResetVector.nasmb
+++ b/OvmfPkg/ResetVector/ResetVector.nasmb
@@ -53,8 +53,25 @@
%error "This implementation inherently depends on PcdOvmfSecPageTablesSize"
%endif
+ %if (FixedPcdGet32 (PcdOvmfSecGhcbPageTableSize) != 0x1000)
+ %error "This implementation inherently depends on PcdOvmfSecGhcbPageTableSize"
+ %endif
+
+ %if (FixedPcdGet32 (PcdOvmfSecGhcbSize) != 0x2000)
+ %error "This implementation inherently depends on PcdOvmfSecGhcbSize"
+ %endif
+
+ %if ((FixedPcdGet32 (PcdOvmfSecGhcbBase) >> 21) != \
+ ((FixedPcdGet32 (PcdOvmfSecGhcbBase) + FixedPcdGet32 (PcdOvmfSecGhcbSize) - 1) >> 21))
+ %error "This implementation inherently depends on PcdOvmfSecGhcbBase not straddling a 2MB boundary"
+ %endif
+
%define PT_ADDR(Offset) (FixedPcdGet32 (PcdOvmfSecPageTablesBase) + (Offset))
%include "Ia32/Flat32ToFlat64.asm"
+
+ %define GHCB_PT_ADDR (FixedPcdGet32 (PcdOvmfSecGhcbPageTableBase))
+ %define GHCB_BASE (FixedPcdGet32 (PcdOvmfSecGhcbBase))
+ %define GHCB_SIZE (FixedPcdGet32 (PcdOvmfSecGhcbSize))
%include "Ia32/PageTables64.asm"
%endif