BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275

Now that OvmfPkg supports version 2 of the GHCB specification, bump the
protocol version.

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: Laszlo Ersek <lersek@redhat.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
 MdePkg/Include/Register/Amd/Ghcb.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdePkg/Include/Register/Amd/Ghcb.h b/MdePkg/Include/Register/Amd/Ghcb.h
index 1e7c0daed3..7a1b6c6d24 100644
--- a/MdePkg/Include/Register/Amd/Ghcb.h
+++ b/MdePkg/Include/Register/Amd/Ghcb.h
@@ -24,7 +24,7 @@
 #define VC_EXCEPTION 29
 
 #define GHCB_VERSION_MIN     1
-#define GHCB_VERSION_MAX     1
+#define GHCB_VERSION_MAX     2
 
 #define GHCB_STANDARD_USAGE  0
 
-- 
2.17.1



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