Re: [edk2-devel] [edk2-staging/RiscV64QemuVirt PATCH V7 04/20] UefiCpuPkg: Add RISCV_EFI_BOOT_PROTOCOL related definitions

["Andrei Warkentin" <andrei.warkentin@intel.com>]

Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Sunil V L
Sent: Saturday, January 28, 2023 1:18 PM
To: devel@edk2.groups.io
Cc: Dong, Eric <eric.dong@intel.com>; Ni, Ray <ray.ni@intel.com>; Kumar, Rahul R <rahul.r.kumar@intel.com>; Daniel Schaefer <git@danielschaefer.me>; Gerd Hoffmann <kraxel@redhat.com>; Abner Chang <abner.chang@amd.com>; Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Subject: [edk2-devel] [edk2-staging/RiscV64QemuVirt PATCH V7 04/20] UefiCpuPkg: Add RISCV_EFI_BOOT_PROTOCOL related definitions

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4076

RISC-V UEFI based platforms need to support RISCV_EFI_BOOT_PROTOCOL.
Add this protocol GUID definition and the header file required.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Daniel Schaefer <git@danielschaefer.me>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
---
 UefiCpuPkg/UefiCpuPkg.dec                       |  7 ++++
 UefiCpuPkg/Include/Protocol/RiscVBootProtocol.h | 34 ++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec index cff239d5283e..903ad52da91b 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -86,6 +86,13 @@ [Protocols]
   ## Include/Protocol/SmMonitorInit.h
   gEfiSmMonitorInitProtocolGuid  = { 0x228f344d, 0xb3de, 0x43bb, { 0xa4, 0xd7, 0xea, 0x20, 0xb, 0x1b, 0x14, 0x82 }}
 
+[Protocols.RISCV64]
+  #
+  # Protocols defined for RISC-V systems
+  #
+  ## Include/Protocol/RiscVBootProtocol.h
+  gRiscVEfiBootProtocolGuid  = { 0xccd15fec, 0x6f73, 0x4eec, { 0x83, 
+0x95, 0x3e, 0x69, 0xe4, 0xb9, 0x40, 0xbf }}
+
 #
 # [Error.gUefiCpuPkgTokenSpaceGuid]
 #   0x80000001 | Invalid value provided.
diff --git a/UefiCpuPkg/Include/Protocol/RiscVBootProtocol.h b/UefiCpuPkg/Include/Protocol/RiscVBootProtocol.h
new file mode 100644
index 000000000000..ed223b852d34
--- /dev/null
+++ b/UefiCpuPkg/Include/Protocol/RiscVBootProtocol.h
@@ -0,0 +1,34 @@
+/** @file
+  RISC-V Boot Protocol mandatory for RISC-V UEFI platforms.
+
+  @par Revision Reference:
+  The protocol specification can be found at  
+ https://github.com/riscv-non-isa/riscv-uefi
+
+  Copyright (c) 2022, Ventana Micro Systems Inc. All rights 
+ reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef RISCV_BOOT_PROTOCOL_H_
+#define RISCV_BOOT_PROTOCOL_H_
+
+typedef struct _RISCV_EFI_BOOT_PROTOCOL RISCV_EFI_BOOT_PROTOCOL;
+
+#define RISCV_EFI_BOOT_PROTOCOL_REVISION  0x00010000 #define 
+RISCV_EFI_BOOT_PROTOCOL_LATEST_VERSION \
+        RISCV_EFI_BOOT_PROTOCOL_REVISION
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_GET_BOOT_HARTID)(
+  IN RISCV_EFI_BOOT_PROTOCOL   *This,
+  OUT UINTN                    *BootHartId
+  );
+
+typedef struct _RISCV_EFI_BOOT_PROTOCOL {
+  UINT64                 Revision;
+  EFI_GET_BOOT_HARTID    GetBootHartId;
+} RISCV_EFI_BOOT_PROTOCOL;
+
+#endif
--
2.38.0