[edk2-devel] [V1 PATCH 1/1] MdePkg: TDX: Correct TDCALL_INFO_RETURN_DATA layout

[Vishal Annapurve via groups.io]

TDCALL_INFO should return num_vcpus as lower 4 bytes of r8 register according to
the tdx spec, so reorder num_vcpus and max_vcpus fields to match the spec.

Reference: Table 22.210 TDG.VP.INFO output operands
https://cdrdv2.intel.com/v1/dl/getContent/733568

Signed-off-by: Vishal Annapurve <vannapurve at google.com>
---
 MdePkg/Include/IndustryStandard/Tdx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdePkg/Include/IndustryStandard/Tdx.h b/MdePkg/Include/IndustryStandard/Tdx.h
index 81df136184..a17be61353 100644
--- a/MdePkg/Include/IndustryStandard/Tdx.h
+++ b/MdePkg/Include/IndustryStandard/Tdx.h
@@ -111,8 +111,8 @@ typedef struct {
 typedef struct {
   UINT64    Gpaw;
   UINT64    Attributes;
-  UINT32    MaxVcpus;
   UINT32    NumVcpus;
+  UINT32    MaxVcpus;
   UINT64    Resv[3];
 } TDCALL_INFO_RETURN_DATA;
 
-- 
2.39.1.637.g21b0678d19-goog



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