[edk2-devel] [PATCH v2 2/2] OvmfPkg/RiscVVirt: Enable CMO support

[Dhaval Sharma]

Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
Cc: Jiewen Yao <jiewen.yao at intel.com>
Cc: Jordan Justen <jordan.l.justen at intel.com>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Cc: Sunil V L <sunilvl at ventanamicro.com>
Cc: Andrei Warkentin <andrei.warkentin at intel.com>
Signed-off-by: Dhaval Sharma <dhaval at rivosinc.com>

Add support for Cache Management Operations by conditionally
adding CMO library.
---

Notes:
    v2:
    - Updated RiscVCMOCacheManagementLib as a separate CMO library

 OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc b/OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc
index 28d9af4d79b9..16c714625870 100644
--- a/OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc
+++ b/OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc
@@ -46,6 +46,12 @@ [Defines]
   DEFINE NETWORK_ALLOW_HTTP_CONNECTIONS = TRUE
   DEFINE NETWORK_ISCSI_ENABLE           = FALSE
 
+#
+# CMO support for RV. It depends on 2 factors. First support in compiler
+# GCC:Binutils 2.39 (GCC12.2+) is required.
+#
+  DEFINE RV_CMO_FEATURE_AVAILABLE = FALSE
+
 !if $(NETWORK_SNP_ENABLE) == TRUE
   !error "NETWORK_SNP_ENABLE is IA32/X64/EBC only"
 !endif
@@ -112,6 +118,9 @@ [LibraryClasses.common]
   TpmPlatformHierarchyLib|SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLibNull/PeiDxeTpmPlatformHierarchyLib.inf
 !endif
 
+!if $(RV_CMO_FEATURE_AVAILABLE) == TRUE
+   CacheMaintenanceLib|MdePkg/Library/RiscVCMOCacheMaintenanceLib/RiscVCMOCacheMaintenanceLib.inf
+!endif
 [LibraryClasses.common.DXE_DRIVER]
   ReportStatusCodeLib|MdeModulePkg/Library/DxeReportStatusCodeLib/DxeReportStatusCodeLib.inf
   PciExpressLib|OvmfPkg/Library/BaseCachingPciExpressLib/BaseCachingPciExpressLib.inf
-- 
2.40.0.rc0.57.g454dfcbddf



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