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From: "Sunil V L" <sunilvl@ventanamicro.com>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Jiewen Yao <jiewen.yao@intel.com>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Gerd Hoffmann <kraxel@redhat.com>,
	Daniel Schaefer <git@danielschaefer.me>
Subject: [edk2-staging/RiscV64QemuVirt PATCH V2 06/33] OvmfPkg/PlatformInitLib: Add support for RISC-V
Date: Wed, 12 Oct 2022 16:14:29 +0530	[thread overview]
Message-ID: <20221012104456.1393376-7-sunilvl@ventanamicro.com> (raw)
In-Reply-To: <20221012104456.1393376-1-sunilvl@ventanamicro.com>

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

This is copied from
edk2-platforms/Platform/RISC-V/PlatformPkg/Universal/FdtPeim
but added as part of library instead of a separate module.

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: Daniel Schaefer <git@danielschaefer.me>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
---
 .../PlatformInitLib/PlatformInitLib.inf       |  9 ++-
 OvmfPkg/Include/Library/PlatformInitLib.h     |  6 ++
 .../PlatformInitLib/RiscV64/PlatformPeiLib.c  | 73 +++++++++++++++++++
 3 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 OvmfPkg/Library/PlatformInitLib/RiscV64/PlatformPeiLib.c

diff --git a/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf b/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
index d4449e40af61..ef8675999583 100644
--- a/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
+++ b/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
@@ -19,7 +19,7 @@ [Defines]
 #
 # The following information is for reference only and not required by the build tools.
 #
-#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#  VALID_ARCHITECTURES           = IA32 X64 EBC RISCV64
 #
 
 [Sources.IA32, Sources.X64]
@@ -33,6 +33,9 @@ [Sources.IA32]
 [Sources.X64]
   Ia32_X64/IntelTdx.c
 
+[Sources.RISCV64]
+  RiscV64/PlatformPeiLib.c
+
 [Packages]
   EmbeddedPkg/EmbeddedPkg.dec
   MdeModulePkg/MdeModulePkg.dec
@@ -58,6 +61,10 @@ [LibraryClasses.IA32, LibraryClasses.X64]
 [LibraryClasses.X64]
   TdxLib
 
+[LibraryClasses.RISCV64]
+  RiscVSbiLib
+  FdtLib
+
 [Pcd]
   gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
 
diff --git a/OvmfPkg/Include/Library/PlatformInitLib.h b/OvmfPkg/Include/Library/PlatformInitLib.h
index c5234bf26d45..1b8d1fad3b49 100644
--- a/OvmfPkg/Include/Library/PlatformInitLib.h
+++ b/OvmfPkg/Include/Library/PlatformInitLib.h
@@ -285,4 +285,10 @@ PlatformInitEmuVariableNvStore (
   IN VOID  *EmuVariableNvStore
   );
 
+EFI_STATUS
+EFIAPI
+PlatformPeim (
+  VOID
+  );
+
 #endif // PLATFORM_INIT_LIB_H_
diff --git a/OvmfPkg/Library/PlatformInitLib/RiscV64/PlatformPeiLib.c b/OvmfPkg/Library/PlatformInitLib/RiscV64/PlatformPeiLib.c
new file mode 100644
index 000000000000..c5db7777c849
--- /dev/null
+++ b/OvmfPkg/Library/PlatformInitLib/RiscV64/PlatformPeiLib.c
@@ -0,0 +1,73 @@
+/** @file
+The library call to pass the device tree to DXE via HOB.
+
+Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>
+
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+//
+//// The package level header files this module uses
+////
+#include <PiPei.h>
+
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BaseRiscVSbiLib.h>
+
+#include <libfdt.h>
+
+#include <Guid/FdtHob.h>
+
+/**
+  @retval EFI_SUCCESS            The address of FDT is passed in HOB.
+          EFI_UNSUPPORTED        Can't locate FDT.
+**/
+EFI_STATUS
+EFIAPI
+PlatformPeim (
+  VOID
+  )
+{
+  EFI_RISCV_FIRMWARE_CONTEXT  *FirmwareContext;
+  VOID                        *FdtPointer;
+  VOID                        *Base;
+  VOID                        *NewBase;
+  UINTN                       FdtSize;
+  UINTN                       FdtPages;
+  UINT64                      *FdtHobData;
+
+  FirmwareContext = NULL;
+  GetFirmwareContextPointer (&FirmwareContext);
+
+  if (FirmwareContext == NULL) {
+    DEBUG ((DEBUG_ERROR, "%a: Firmware Context is NULL\n", __FUNCTION__));
+    return EFI_UNSUPPORTED;
+  }
+
+  FdtPointer = (VOID *)FirmwareContext->FlattenedDeviceTree;
+  if (FdtPointer == NULL) {
+    DEBUG ((DEBUG_ERROR, "%a: Invalid FDT pointer\n", __FUNCTION__));
+    return EFI_UNSUPPORTED;
+  }
+
+  DEBUG ((DEBUG_INFO, "%a: Build FDT HOB - FDT at address: 0x%x \n", __FUNCTION__, FdtPointer));
+  Base = FdtPointer;
+  ASSERT (Base != NULL);
+  ASSERT (fdt_check_header (Base) == 0);
+
+  FdtSize  = fdt_totalsize (Base);
+  FdtPages = EFI_SIZE_TO_PAGES (FdtSize);
+  NewBase  = AllocatePages (FdtPages);
+  ASSERT (NewBase != NULL);
+  fdt_open_into (Base, NewBase, EFI_PAGES_TO_SIZE (FdtPages));
+
+  FdtHobData = BuildGuidHob (&gFdtHobGuid, sizeof *FdtHobData);
+  ASSERT (FdtHobData != NULL);
+  *FdtHobData = (UINTN)NewBase;
+
+  return EFI_SUCCESS;
+}
-- 
2.25.1


  parent reply	other threads:[~2022-10-12 10:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-12 10:44 [edk2-staging/RiscV64QemuVirt PATCH V2 00/33] Add support for RISC-V virt machine Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 01/33] MdePkg/Register: Add register definition header files for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 02/33] MdePkg: Add RISCV_EFI_BOOT_PROTOCOL related definitions Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 03/33] MdePkg/BaseLib: RISC-V: Add few more helper functions Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 04/33] MdePkg: Add BaseRiscVSbiLib Library for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 05/33] OvmfPkg/PlatformInitLib: Refactor to allow other architectures Sunil V L
2022-10-12 10:44 ` Sunil V L [this message]
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 07/33] OvmfPkg/ResetSystemLib: " Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 08/33] OvmfPkg/ResetSystemLib: Add support for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 09/33] OvmfPkg/Sec: Refactor to allow other architectures Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 10/33] OvmfPkg/Sec: Add RISC-V support Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 11/33] OvmfPkg/PlatformPei: Refactor to allow other architectures Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 12/33] OvmfPkg/PlatformPei: Add support for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 13/33] UefiCpuPkg/CpuTimerLib: Refactor to allow other architectures Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 14/33] UefiCpuPkg/CpuTimerLib: Add support for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 15/33] UefiCpuPkg/CpuExceptionHandlerLib: Refactor to allow other architectures Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 16/33] UefiCpuPkg/CpuExceptionHandlerLib: Add support for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 17/33] UefiCpuPkg/CpuDxe: Refactor to allow other architectures Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 18/33] UefiCpuPkg/CpuDxe: Add support for RISC-V Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 19/33] UefiCpuPkg/CpuDxe: Add RISC-V Boot protocol support Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 20/33] UefiCpuPkg: Add CpuTimerDxe module Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 21/33] ArmVirtPkg/PlatformHasAcpiDtDxe: Move to OvmfPkg Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 22/33] ArmVirtPkg: Fix up the location of PlatformHasAcpiDtDxe Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 23/33] ArmVirtPkg/PlatformBootManagerLib: Move to OvmfPkg Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 24/33] ArmVirtPkg: Fix up the paths to PlatformBootManagerLib Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 25/33] ArmPlatformPkg/NorFlashPlatformLib.h:Move to MdePkg Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 26/33] EmbeddedPkg/NvVarStoreFormattedLib: Migrate to MdeModulePkg Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 27/33] OvmfPkg: Add NorFlashQemuLib library Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 28/33] OvmfPkg: Add Qemu NOR flash DXE driver Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 29/33] OvmfPkg/NorFlashDxe: Avoid switching to array mode during writes Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 30/33] OvmfPkg/NorFlashDxe: Avoid switching between modes in a tight loop Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 31/33] OvmfPkg: RiscVVirt: Add Qemu Virt platform support Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 32/33] Maintainers.txt: Add entry for OvmfPkg/RiscVVirt Sunil V L
2022-10-12 10:44 ` [edk2-staging/RiscV64QemuVirt PATCH V2 33/33] UefiCpuPkg/UefiCpuPkg.ci.yaml: Ignore RISC-V file Sunil V L

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