[edk2-devel] [PATCH v10 5/5] OvmfPkg/RiscVVirt: Override for RISC-V CPU Features

["Dhaval Sharma" <dhaval@rivosinc.com>]

This PCD provides a way for platform to override any
HW features that are default enabled by previous stages
of FW (like OpenSBI). For the case where previous/prev
stage has disabled the feature, this override is not
useful and its usage should be avoided.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>

Signed-off-by: Dhaval Sharma <dhaval@rivosinc.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@...>
---

Notes:
    V10:
    - Only keep CMO feature bitmask bit to disabled. Unimplemented bits
      remain 1.
    V8:
    - Added RV tag
    V7:
    - Added RB tag
    v6:
    - Modify PCD name according to changes made in Baselib implementation
    V5:
    - Introduce PCD for platform

 OvmfPkg/RiscVVirt/RiscVVirt.dsc.inc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/OvmfPkg/RiscVVirt/RiscVVirt.dsc.inc b/OvmfPkg/RiscVVirt/RiscVVirt.dsc.inc
index fe320525153f..a050f1ffc1d4 100644
--- a/OvmfPkg/RiscVVirt/RiscVVirt.dsc.inc
+++ b/OvmfPkg/RiscVVirt/RiscVVirt.dsc.inc
@@ -203,6 +203,7 @@ [PcdsFeatureFlag]
   gEfiMdeModulePkgTokenSpaceGuid.PcdInstallAcpiSdtProtocol|TRUE
 
 [PcdsFixedAtBuild.common]
+  gEfiMdePkgTokenSpaceGuid.PcdRiscVFeatureOverride|0xFFFFFFFE
   gEfiMdePkgTokenSpaceGuid.PcdMaximumUnicodeStringLength|1000000
   gEfiMdePkgTokenSpaceGuid.PcdMaximumAsciiStringLength|1000000
   gEfiMdePkgTokenSpaceGuid.PcdMaximumLinkedListLength|0
-- 
2.39.2



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