File elilo-x86-64-bootproto-update.diff of Package elilo

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File elilo-x86-64-bootproto-update.diff of Package elilo (Revision 1eb069a9f89433b0d01a184d76281065)

Currently displaying revision 1eb069a9f89433b0d01a184d76281065 , Show latest

---
 x86_64/sysdeps.h |   34 +++++++++++++---------------------
 x86_64/system.c  |   34 +++++++---------------------------
 2 files changed, 20 insertions(+), 48 deletions(-)

--- a/x86_64/sysdeps.h
+++ b/x86_64/sysdeps.h
@@ -107,12 +107,12 @@ typedef union x86_64_boot_params {
 /* 0x06 */	UINT8 orig_video_mode;		/* LDR */
 /* 0x07 */	UINT8 orig_video_cols;		/* LDR */
 
-/* 0x08 */	UINT16 unused_1;		/* unused */
+/* 0x08 */	UINT16 pad_1;			/* unused */
 
 /* %%TBD */
 /* 0x0A */	UINT16 orig_ega_bx;		/* LDR */
 
-/* 0x0C */	UINT16 unused_2;		/* unused */
+/* 0x0C */	UINT16 pad_2;			/* unused */
 
 /* Screen height before passing control to kernel. */
 /* 0x0E */	UINT8 orig_video_rows;		/* LDR */
@@ -174,7 +174,7 @@ typedef union x86_64_boot_params {
 /* 0x4E */	UINT32 bios_code_len;		/* LDR */
 /* 0x52 */	UINT16 bios_data_len;		/* LDR */
 
-/* 0x54 */	UINT8 unused_3[0x2C];		/* unused */
+/* 0x54 */	UINT8 pad_3[0x2C];		/* unused */
 
 /* %%TBD */
 /* 0x80 */	UINT8 hd0_info[0x10];		/* LDR */
@@ -184,7 +184,7 @@ typedef union x86_64_boot_params {
 /* 0xA0 */	UINT16 mca_info_len;		/* LDR */
 /* 0xA2 */	UINT8 mca_info_buf[0x10];	/* LDR */
 
-/* 0xB2 */	UINT8 unused_4[0x10E];		/* unused */
+/* 0xB2 */	UINT8 pad_4[0x10E];		/* unused */
 
 /* EFI boot loader signature. */
 /* 0x1C0 */	UINT8 efi_loader_sig[4];	/* LDR */
@@ -209,9 +209,9 @@ typedef union x86_64_boot_params {
 /* Available contiguous extended memory in KB. */
 /* 0x1E0 */	UINT32 alt_mem_k;		/* LDR */
 
-/* 0x1E4 */	UINT32 unused_51;		/* unused */
+/* 0x1E4 */	UINT32 pad_51;			/* unused */
 /* 0x1E8 */	UINT8 e820_nrmap;
-/* 0x1E9 */	UINT32 unused_52[2];		/* unused */
+/* 0x1E9 */	UINT32 pad_52[2];		/* unused */
 
 /* Size of setup code in sectors (1 sector == 512 bytes). */
 /* 0x1F1 */	UINT8 setup_sectors;		/* BLD */
@@ -220,15 +220,10 @@ typedef union x86_64_boot_params {
 /* 0x1F2 */	UINT16 mount_root_rdonly;	/* BLD */
 
 /* %%TBD */
-/* 0x1F4 */	UINT16 sys_size;		/* BLD */
+/* 0x1F4 */	UINT32 sys_size;		/* BLD */
 
 /* %%TBD */
-/* 0x1F6 */	UINT16 swap_dev;		/* BLD */
-
-/* %%TBD */
-/* 0x1F8 */	UINT16 ramdisk_flags;		/* BLD */
-#define RAMDISK_PROMPT		0x8000
-#define RAMDISK_LOAD		0x4000
+/* 0x1F8 */	UINT16 ram_size_DNU;		/* BLD */
 
 /* %%TBD */
 /* 0x1FA */	UINT16 video_mode_flag;		/* BLD */
@@ -236,12 +231,8 @@ typedef union x86_64_boot_params {
 /* %%TBD */
 /* 0x1FC */	UINT16 orig_root_dev;		/* BLD */
 
-/* 0x1FE */	UINT8 unused_6;			/* unused */
-
 /* %%TBD */
-/* 0x1FF */	UINT8 aux_dev_info;		/* LDR */
-#define NO_MOUSE		0x00
-#define FOUND_MOUSE		0xAA
+/* 0x1FE */	UINT16 boot_flag;		/* ? */
 
 /* Jump past setup data (not used in EFI). */
 /* 0x200 */	UINT16 jump;			/* BLD */
@@ -283,16 +274,17 @@ typedef union x86_64_boot_params {
 /* 0x21C */	UINT32 initrd_size;		/* LDR */
 
 /* %%TBD */
-/* 0x220 */	UINT32 bootsect_helper;		/* BLD */
+/* 0x220 */	UINT32 bootsect_helper_DNU;	/* BLD */
 
 /* %%TBD */
 /* 0x224 */	UINT16 heap_end_ptr;		/* LDR */
 
 /* %%TBD */
-/* 0x226 */	UINT16 unused_7;		/* LDR */
+/* 0x226 */	UINT8 ext_loader_ver;		/* LDR */
+/* 0x227 */	UINT8 ext_loader_type;		/* LDR */
 
 /* 0x228 */	UINT32 cmdline_addr; 		/* LDR */
-/* 0x22C */	UINT32 unused_8[41];
+/* 0x22C */	UINT32 pad_8[41];
 /* 0x2D0 */	UINT8  e820_map[2560];
 	} s;
 } boot_params_t;
--- a/x86_64/system.c
+++ b/x86_64/system.c
@@ -493,17 +493,9 @@ sysdeps_create_boot_params(
 	hdr_version = (bp->s.hdr_major << 8) | bp->s.hdr_minor;
 
 	/*
-	 * Clear out unused memory in boot sector image.
+	 * Do NOT clear out unknown memory in boot sector image.
+	 * This breaks boot protocol >= 2.10 (2.6.31).
 	 */
-	bp->s.unused_1 = 0;
-	bp->s.unused_2 = 0;
-	ZeroMem(&bp->s.unused_3, sizeof bp->s.unused_3);
-	ZeroMem(&bp->s.unused_4, sizeof bp->s.unused_4);
-	ZeroMem(&bp->s.unused_51, sizeof bp->s.unused_51);
-	ZeroMem(&bp->s.unused_52, sizeof bp->s.unused_52);
-	bp->s.unused_6 = 0;
-	bp->s.unused_7 = 0;
-	ZeroMem(bp->s.unused_8, sizeof bp->s.unused_8);
 
 	/*
 	 * Tell kernel this was loaded by an advanced loader type.
@@ -553,19 +545,14 @@ sysdeps_create_boot_params(
 	DBG_PRT((L"initrd->start_addr="PTR_FMT"  initrd->pgcnt=%d\n",
 		initrd->start_addr, initrd->pgcnt));
 
-	/* These RAMdisk flags are not needed, just zero them. */
-	bp->s.ramdisk_flags = 0;
+	/* These RAMdisk flags are not needed, just zero them. NOT!*/
+	/* 'ramdisk_flags' (@0x1F8) is called 'ram_size' in the meantime, */
+	/* see Documentation/x86/boot.txt. */
 
 	if (initrd->start_addr && initrd->pgcnt) {
 		/* %%TBD - This will probably have to be changed. */
 		bp->s.initrd_start = (UINT32)(UINT64)initrd->start_addr;
 		bp->s.initrd_size = (UINT32)(initrd->size);
-		/*
-		 * This is the RAMdisk root device for RedHat 2.2.x
-		 * kernels (major 0x01, minor 0x00).
-		 */
-
-		bp->s.orig_root_dev = 0x0100;
 	} else {
 		bp->s.initrd_start = 0;
 		bp->s.initrd_size = 0;
@@ -590,11 +577,6 @@ sysdeps_create_boot_params(
 	ZeroMem(bp->s.mca_info_buf, sizeof bp->s.mca_info_buf);
 
 	/*
-	 * Pointing device presence.  The kernel will detect this.
-	 */
-	bp->s.aux_dev_info = NO_MOUSE;
-
-	/*
 	 * EFI loader signature 
 	 */
 	CopyMem(bp->s.efi_loader_sig, EFI_LOADER_SIG_X64, 4);
@@ -692,11 +674,9 @@ sysdeps_create_boot_params(
 		CHECK_OFFSET(setup_sectors, 0x1F1, L"%xh");
 		CHECK_OFFSET(mount_root_rdonly, 0x1F2, L"%xh");
 		CHECK_OFFSET(sys_size, 0x1F4, L"%xh");
-		CHECK_OFFSET(swap_dev, 0x1F6, L"%xh");
-		CHECK_OFFSET(ramdisk_flags, 0x1F8, L"%xh");
 		CHECK_OFFSET(video_mode_flag, 0x1FA, L"%xh");
 		CHECK_OFFSET(orig_root_dev, 0x1FC, L"%xh");
-		CHECK_OFFSET(aux_dev_info, 0x1FF, L"%xh");
+		CHECK_OFFSET(boot_flag, 0x1FE, L"%xh");
 		CHECK_OFFSET(jump, 0x200, L"%xh");
 		CHECK_OFFSET(setup_sig, 0x202, L"'%-4.4a'");
 		CHECK_OFFSET(hdr_minor, 0x206, L"%xh");
@@ -710,9 +690,9 @@ sysdeps_create_boot_params(
 		CHECK_OFFSET(kernel_start, 0x214, L"%xh");
 		CHECK_OFFSET(initrd_start, 0x218, L"%xh");
 		CHECK_OFFSET(initrd_size, 0x21C, L"%xh");
-		CHECK_OFFSET(bootsect_helper, 0x220, L"%xh");
 		CHECK_OFFSET(heap_end_ptr, 0x224, L"%xh");
 		CHECK_OFFSET(cmdline_addr, 0x228, L"%xh");
+		CHECK_OFFSET(e820_map, 0x2D0, L"%xh");
 
 		if (test) {
 			ERR_PRT((L"Boot sector and/or setup parameter alignment error."));

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File elilo-x86-64-bootproto-update.diff of Package elilo (Revision 1eb069a9f89433b0d01a184d76281065)

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