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/** @file
RISC-V SEC phase module for Qemu Virt.
Copyright (c) 2008 - 2023, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "SecMain.h"
STATIC
EFI_STATUS
EFIAPI
SecInitializePlatform (
VOID
)
{
EFI_STATUS Status;
MemoryPeimInitialization ();
CpuPeimInitialization ();
// Set the Boot Mode
SetBootMode (BOOT_WITH_FULL_CONFIGURATION);
Status = PlatformPeimInitialization ();
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
/**
Entry point to the C language phase of SEC. After the SEC assembly
code has initialized some temporary memory and set up the stack,
the control is transferred to this function.
@param[in] BootHartId Hardware thread ID of boot hart.
@param[in] DeviceTreeAddress Pointer to Device Tree (DTB)
**/
VOID
NORETURN
EFIAPI
SecStartup (
IN UINTN BootHartId,
IN VOID *DeviceTreeAddress
)
{
EFI_HOB_HANDOFF_INFO_TABLE *HobList;
EFI_RISCV_FIRMWARE_CONTEXT FirmwareContext;
EFI_STATUS Status;
UINT64 UefiMemoryBase;
UINT64 StackBase;
UINT32 StackSize;
SerialPortInitialize ();
//
// Report Status Code to indicate entering SEC core
//
DEBUG ((
DEBUG_INFO,
"%a() BootHartId: 0x%x, DeviceTreeAddress=0x%x\n",
__func__,
BootHartId,
DeviceTreeAddress
));
FirmwareContext.BootHartId = BootHartId;
FirmwareContext.FlattenedDeviceTree = (UINT64)DeviceTreeAddress;
SetFirmwareContextPointer (&FirmwareContext);
StackBase = (UINT64)FixedPcdGet32 (PcdOvmfSecPeiTempRamBase);
StackSize = FixedPcdGet32 (PcdOvmfSecPeiTempRamSize);
UefiMemoryBase = StackBase + StackSize - SIZE_32MB;
// Declare the PI/UEFI memory region
HobList = HobConstructor (
(VOID *)UefiMemoryBase,
SIZE_32MB,
(VOID *)UefiMemoryBase,
(VOID *)StackBase // The top of the UEFI Memory is reserved for the stacks
);
PrePeiSetHobList (HobList);
SecInitializePlatform ();
BuildStackHob (StackBase, StackSize);
//
// Process all libraries constructor function linked to SecMain.
//
ProcessLibraryConstructorList ();
// Assume the FV that contains the SEC (our code) also contains a compressed FV.
Status = DecompressFirstFv ();
ASSERT_EFI_ERROR (Status);
// Load the DXE Core and transfer control to it
Status = LoadDxeCoreFromFv (NULL, 0);
ASSERT_EFI_ERROR (Status);
//
// Should not come here.
//
UNREACHABLE ();
}
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