Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 166 insertions, 0 deletions

diff --git a/arch/arm64/kernel/efi-header.S b/arch/arm64/kernel/efi-header.S
new file mode 100644
index 000000000..d731b4655
--- /dev/null
+++ b/arch/arm64/kernel/efi-header.S
@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2013 - 2017 Linaro, Ltd.
+ * Copyright (C) 2013, 2014 Red Hat, Inc.
+ */
+
+#include <linux/pe.h>
+#include <linux/sizes.h>
+
+	.macro	efi_signature_nop
+#ifdef CONFIG_EFI
+.L_head:
+	/*
+	 * This ccmp instruction has no meaningful effect except that
+	 * its opcode forms the magic "MZ" signature required by UEFI.
+	 */
+	ccmp	x18, #0, #0xd, pl
+#else
+	/*
+	 * Bootloaders may inspect the opcode at the start of the kernel
+	 * image to decide if the kernel is capable of booting via UEFI.
+	 * So put an ordinary NOP here, not the "MZ.." pseudo-nop above.
+	 */
+	nop
+#endif
+	.endm
+
+	.macro	__EFI_PE_HEADER
+#ifdef CONFIG_EFI
+	.set	.Lpe_header_offset, . - .L_head
+	.long	PE_MAGIC
+	.short	IMAGE_FILE_MACHINE_ARM64		// Machine
+	.short	.Lsection_count				// NumberOfSections
+	.long	0 					// TimeDateStamp
+	.long	0					// PointerToSymbolTable
+	.long	0					// NumberOfSymbols
+	.short	.Lsection_table - .Loptional_header	// SizeOfOptionalHeader
+	.short	IMAGE_FILE_DEBUG_STRIPPED | \
+		IMAGE_FILE_EXECUTABLE_IMAGE | \
+		IMAGE_FILE_LINE_NUMS_STRIPPED		// Characteristics
+
+.Loptional_header:
+	.short	PE_OPT_MAGIC_PE32PLUS			// PE32+ format
+	.byte	0x02					// MajorLinkerVersion
+	.byte	0x14					// MinorLinkerVersion
+	.long	__initdata_begin - .Lefi_header_end	// SizeOfCode
+	.long	__pecoff_data_size			// SizeOfInitializedData
+	.long	0					// SizeOfUninitializedData
+	.long	__efistub_efi_pe_entry - .L_head	// AddressOfEntryPoint
+	.long	.Lefi_header_end - .L_head		// BaseOfCode
+
+	.quad	0					// ImageBase
+	.long	SEGMENT_ALIGN				// SectionAlignment
+	.long	PECOFF_FILE_ALIGNMENT			// FileAlignment
+	.short	0					// MajorOperatingSystemVersion
+	.short	0					// MinorOperatingSystemVersion
+	.short	LINUX_EFISTUB_MAJOR_VERSION		// MajorImageVersion
+	.short	LINUX_EFISTUB_MINOR_VERSION		// MinorImageVersion
+	.short	0					// MajorSubsystemVersion
+	.short	0					// MinorSubsystemVersion
+	.long	0					// Win32VersionValue
+
+	.long	_end - .L_head				// SizeOfImage
+
+	// Everything before the kernel image is considered part of the header
+	.long	.Lefi_header_end - .L_head		// SizeOfHeaders
+	.long	0					// CheckSum
+	.short	IMAGE_SUBSYSTEM_EFI_APPLICATION		// Subsystem
+	.short	IMAGE_DLL_CHARACTERISTICS_NX_COMPAT	// DllCharacteristics
+	.quad	0					// SizeOfStackReserve
+	.quad	0					// SizeOfStackCommit
+	.quad	0					// SizeOfHeapReserve
+	.quad	0					// SizeOfHeapCommit
+	.long	0					// LoaderFlags
+	.long	(.Lsection_table - .) / 8		// NumberOfRvaAndSizes
+
+	.quad	0					// ExportTable
+	.quad	0					// ImportTable
+	.quad	0					// ResourceTable
+	.quad	0					// ExceptionTable
+	.quad	0					// CertificationTable
+	.quad	0					// BaseRelocationTable
+
+#ifdef CONFIG_DEBUG_EFI
+	.long	.Lefi_debug_table - .L_head		// DebugTable
+	.long	.Lefi_debug_table_size
+#endif
+
+	// Section table
+.Lsection_table:
+	.ascii	".text\0\0\0"
+	.long	__initdata_begin - .Lefi_header_end	// VirtualSize
+	.long	.Lefi_header_end - .L_head		// VirtualAddress
+	.long	__initdata_begin - .Lefi_header_end	// SizeOfRawData
+	.long	.Lefi_header_end - .L_head		// PointerToRawData
+
+	.long	0					// PointerToRelocations
+	.long	0					// PointerToLineNumbers
+	.short	0					// NumberOfRelocations
+	.short	0					// NumberOfLineNumbers
+	.long	IMAGE_SCN_CNT_CODE | \
+		IMAGE_SCN_MEM_READ | \
+		IMAGE_SCN_MEM_EXECUTE			// Characteristics
+
+	.ascii	".data\0\0\0"
+	.long	__pecoff_data_size			// VirtualSize
+	.long	__initdata_begin - .L_head		// VirtualAddress
+	.long	__pecoff_data_rawsize			// SizeOfRawData
+	.long	__initdata_begin - .L_head		// PointerToRawData
+
+	.long	0					// PointerToRelocations
+	.long	0					// PointerToLineNumbers
+	.short	0					// NumberOfRelocations
+	.short	0					// NumberOfLineNumbers
+	.long	IMAGE_SCN_CNT_INITIALIZED_DATA | \
+		IMAGE_SCN_MEM_READ | \
+		IMAGE_SCN_MEM_WRITE			// Characteristics
+
+	.set	.Lsection_count, (. - .Lsection_table) / 40
+
+#ifdef CONFIG_DEBUG_EFI
+	/*
+	 * The debug table is referenced via its Relative Virtual Address (RVA),
+	 * which is only defined for those parts of the image that are covered
+	 * by a section declaration. Since this header is not covered by any
+	 * section, the debug table must be emitted elsewhere. So stick it in
+	 * the .init.rodata section instead.
+	 *
+	 * Note that the EFI debug entry itself may legally have a zero RVA,
+	 * which means we can simply put it right after the section headers.
+	 */
+	__INITRODATA
+
+	.align	2
+.Lefi_debug_table:
+	// EFI_IMAGE_DEBUG_DIRECTORY_ENTRY
+	.long	0					// Characteristics
+	.long	0					// TimeDateStamp
+	.short	0					// MajorVersion
+	.short	0					// MinorVersion
+	.long	IMAGE_DEBUG_TYPE_CODEVIEW		// Type
+	.long	.Lefi_debug_entry_size			// SizeOfData
+	.long	0					// RVA
+	.long	.Lefi_debug_entry - .L_head		// FileOffset
+
+	.set	.Lefi_debug_table_size, . - .Lefi_debug_table
+	.previous
+
+.Lefi_debug_entry:
+	// EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY
+	.ascii	"NB10"					// Signature
+	.long	0					// Unknown
+	.long	0					// Unknown2
+	.long	0					// Unknown3
+
+	.asciz	VMLINUX_PATH
+
+	.set	.Lefi_debug_entry_size, . - .Lefi_debug_entry
+#endif
+
+	.balign	SEGMENT_ALIGN
+.Lefi_header_end:
+#else
+	.set	.Lpe_header_offset, 0x0
+#endif
+	.endm