[PATCH 02/10] x86: Adjust bootparam.h to be more like linux

Simon Glass sjg at chromium.org
Sun Feb 26 02:32:57 CET 2023


This likely came from Linux originally, so update it to match v6.2 more.
This has no functional change.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 arch/x86/include/asm/bootparam.h | 70 +++++++++++++++++++++-----------
 arch/x86/lib/zimage.c            |  2 +-
 2 files changed, 47 insertions(+), 25 deletions(-)

diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
index 7a3c1f51554..ea816ca7469 100644
--- a/arch/x86/include/asm/bootparam.h
+++ b/arch/x86/include/asm/bootparam.h
@@ -9,19 +9,54 @@
 #include <asm/ist.h>
 #include <asm/video/edid.h>
 
-/* setup data types */
-enum {
-	SETUP_NONE = 0,
-	SETUP_E820_EXT,
-	SETUP_DTB,
-};
+/* setup_data/setup_indirect types */
+#define SETUP_NONE			0
+#define SETUP_E820_EXT			1
+#define SETUP_DTB			2
+#define SETUP_PCI			3
+#define SETUP_EFI			4
+#define SETUP_APPLE_PROPERTIES		5
+#define SETUP_JAILHOUSE			6
+#define SETUP_CC_BLOB			7
+#define SETUP_IMA			8
+#define SETUP_RNG_SEED			9
+#define SETUP_ENUM_MAX			SETUP_RNG_SEED
+
+#define SETUP_INDIRECT			BIT(31)
+#define SETUP_TYPE_MAX			(SETUP_ENUM_MAX | SETUP_INDIRECT)
+
+/* ram_size flags */
+#define RAMDISK_IMAGE_START_MASK	0x07FF
+#define RAMDISK_PROMPT_FLAG		0x8000
+#define RAMDISK_LOAD_FLAG		0x4000
+
+/* loadflags */
+#define LOADED_HIGH	BIT(0)
+#define KASLR_FLAG	BIT(1)
+#define QUIET_FLAG	BIT(5)
+#define KEEP_SEGMENTS	BIT(6)
+#define CAN_USE_HEAP	BIT(7)
+
+#define XLF_KERNEL_64			BIT(0)
+#define XLF_CAN_BE_LOADED_ABOVE_4G	BIT(1)
+#define XLF_EFI_HANDOVER_32		BIT(2)
+#define XLF_EFI_HANDOVER_64		BIT(3)
+#define XLF_EFI_KEXEC			BIT(4)
 
 /* extensible setup data list node */
 struct setup_data {
 	__u64 next;
 	__u32 type;
 	__u32 len;
-	__u8 data[0];
+	__u8 data[];
+};
+
+/* extensible setup indirect data node */
+struct setup_indirect {
+	__u32 type;
+	__u32 reserved;  /* Reserved, must be set to zero. */
+	__u64 len;
+	__u64 addr;
 };
 
 /**
@@ -34,9 +69,6 @@ struct setup_header {
 	__u16	root_flags;
 	__u32	syssize;
 	__u16	ram_size;
-#define RAMDISK_IMAGE_START_MASK	0x07FF
-#define RAMDISK_PROMPT_FLAG		0x8000
-#define RAMDISK_LOAD_FLAG		0x4000
 	__u16	vid_mode;
 	__u16	root_dev;
 	__u16	boot_flag;
@@ -44,15 +76,10 @@ struct setup_header {
 	__u32	header;
 	__u16	version;
 	__u32	realmode_swtch;
-	__u16	start_sys;
+	__u16	start_sys_seg;
 	__u16	kernel_version;
 	__u8	type_of_loader;
 	__u8	loadflags;
-#define LOADED_HIGH	BIT(0)
-#define KASLR_FLAG	BIT(1)
-#define QUIET_FLAG	BIT(5)
-#define KEEP_SEGMENTS	BIT(6)		/* Obsolete */
-#define CAN_USE_HEAP	BIT(7)
 	__u16	setup_move_size;
 	__u32	code32_start;
 	__u32	ramdisk_image;
@@ -65,13 +92,8 @@ struct setup_header {
 	__u32	initrd_addr_max;
 	__u32	kernel_alignment;
 	__u8	relocatable_kernel;
-	u8	min_alignment;
-#define XLF_KERNEL_64			BIT(0)
-#define XLF_CAN_BE_LOADED_ABOVE_4G	BIT(1)
-#define XLF_EFI_HANDOVER_32		BIT(2)
-#define XLF_EFI_HANDOVER_64		BIT(3)
-#define XLF_EFI_KEXEC			BIT(4)
-	u16	xloadflags;
+	__u8	min_alignment;
+	__u16	xloadflags;
 	__u32	cmdline_size;
 	__u32	hardware_subarch;
 	__u64	hardware_subarch_data;
@@ -81,7 +103,7 @@ struct setup_header {
 	__u64	pref_address;
 	__u32	init_size;
 	__u32	handover_offset;
-	u32	kernel_info_offset;
+	__u32	kernel_info_offset;
 } __attribute__((packed));
 
 struct sys_desc_table {
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c
index 9cc04490307..a6d9151c324 100644
--- a/arch/x86/lib/zimage.c
+++ b/arch/x86/lib/zimage.c
@@ -655,7 +655,7 @@ void zimage_dump(struct boot_params *base_ptr)
 		printf("%-20s  %s\n", "", "Ancient kernel, using version 100");
 	print_num("Version", hdr->version);
 	print_num("Real mode switch", hdr->realmode_swtch);
-	print_num("Start sys", hdr->start_sys);
+	print_num("Start sys seg", hdr->start_sys_seg);
 	print_num("Kernel version", hdr->kernel_version);
 	version = get_kernel_version(base_ptr, (void *)state.bzimage_addr);
 	if (version)
-- 
2.39.2.637.g21b0678d19-goog



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