diff options
| -rw-r--r-- | util/cbfstool/linux_trampoline.S | 13 | ||||
| -rw-r--r-- | util/cbfstool/linux_trampoline.c | 44 |
2 files changed, 36 insertions, 21 deletions
diff --git a/util/cbfstool/linux_trampoline.S b/util/cbfstool/linux_trampoline.S index 941ab3f2e0ec..6a62ff0ed522 100644 --- a/util/cbfstool/linux_trampoline.S +++ b/util/cbfstool/linux_trampoline.S @@ -61,9 +61,22 @@ jne .testAcpiRsdp mov 4(%ebx), %eax sub $8, %eax shr $2, %eax /* eax = number of dwords of e820 data */ +/* + * Historically linux had space for 32 entries. This limit was increased in + * the year 2005 (Linux 2.6.11) to hold up to 128 entries. + * Assume 128 entries when the boot protocol version is 2.04+. + */ +cmpw $0x0204, (LINUX_PARAM_LOC + PROTOCOL_VERSION) +jge .e820big /* protocol version >= 2.04 can handle 128 entries of 5 dwords */ cmp $(32 * 5), %eax /* linux wants at most 32 entries of 5 dwords */ jng 1f mov $(32 * 5), %eax /* only copy 32 entries */ +jmp 1f + +.e820big: +cmp $(128 * 5), %eax /* linux wants at most 128 entries of 5 dwords */ +jng 1f +mov $(128 * 5), %eax /* only copy 128 entries */ 1: mov %eax, %esi mov $5, %edi diff --git a/util/cbfstool/linux_trampoline.c b/util/cbfstool/linux_trampoline.c index 794b24500708..13c0edb55743 100644 --- a/util/cbfstool/linux_trampoline.c +++ b/util/cbfstool/linux_trampoline.c @@ -3,25 +3,27 @@ unsigned char trampoline[] = { 0xfc, 0x31, 0xd2, 0xb9, 0x00, 0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x01, 0x00, 0x01, 0xcb, 0x8b, 0x01, 0x3d, 0x4c, 0x42, 0x49, 0x4f, 0x74, 0x07, 0x83, 0xc1, 0x10, 0x39, 0xcb, 0x75, 0xe9, 0x39, - 0xcb, 0x0f, 0x84, 0x2e, 0x01, 0x00, 0x00, 0x8b, 0x59, 0x04, 0x01, 0xcb, 0x8b, 0x49, 0x14, 0x83, - 0x3b, 0x11, 0x75, 0x05, 0x8b, 0x4b, 0x08, 0xeb, 0xcf, 0x83, 0x3b, 0x01, 0x75, 0x57, 0x8b, 0x43, - 0x04, 0x83, 0xe8, 0x08, 0xc1, 0xe8, 0x02, 0x3d, 0xa0, 0x00, 0x00, 0x00, 0x7e, 0x05, 0xb8, 0xa0, - 0x00, 0x00, 0x00, 0x89, 0xc6, 0xbf, 0x05, 0x00, 0x00, 0x00, 0xf7, 0xf7, 0xa3, 0xe8, 0x01, 0x09, - 0x00, 0x89, 0xf0, 0x91, 0x8d, 0x73, 0x08, 0xbf, 0xd0, 0x02, 0x09, 0x00, 0xf3, 0xa5, 0x91, 0xa1, - 0xe8, 0x01, 0x09, 0x00, 0xbf, 0xd0, 0x02, 0x09, 0x00, 0x83, 0xf8, 0x00, 0x0f, 0x84, 0x94, 0x00, - 0x00, 0x00, 0x83, 0x7f, 0x10, 0x0c, 0x7e, 0x07, 0xc7, 0x47, 0x10, 0x02, 0x00, 0x00, 0x00, 0x48, - 0x83, 0xc7, 0x14, 0xeb, 0xe4, 0x83, 0x3b, 0x43, 0x75, 0x12, 0x8b, 0x43, 0x08, 0xa3, 0x70, 0x00, - 0x09, 0x00, 0x8b, 0x43, 0x0c, 0xa3, 0x74, 0x00, 0x09, 0x00, 0xeb, 0x6a, 0x83, 0x3b, 0x12, 0x75, - 0x65, 0x66, 0x81, 0x3d, 0x06, 0x02, 0x09, 0x00, 0x0f, 0x02, 0x7d, 0x06, 0x83, 0x7b, 0x0c, 0x00, - 0x75, 0x54, 0xbf, 0x00, 0x00, 0x09, 0x00, 0x8b, 0x43, 0x08, 0x89, 0x47, 0x18, 0x8b, 0x43, 0x0c, - 0x89, 0x47, 0x3a, 0x8b, 0x43, 0x10, 0x66, 0x89, 0x47, 0x12, 0x8b, 0x43, 0x14, 0x66, 0x89, 0x47, - 0x14, 0x8b, 0x53, 0x18, 0x66, 0x89, 0x57, 0x24, 0xf7, 0xe2, 0x89, 0x47, 0x1c, 0x66, 0x0f, 0xb6, - 0x43, 0x1c, 0x66, 0x89, 0x47, 0x16, 0xbe, 0x04, 0x00, 0x00, 0x00, 0x66, 0x8b, 0x44, 0x73, 0x1b, - 0x66, 0xd1, 0xc0, 0x66, 0x89, 0x44, 0x77, 0x24, 0x4e, 0x75, 0xf0, 0xc7, 0x47, 0x36, 0x02, 0x00, - 0x00, 0x00, 0xc6, 0x47, 0x0f, 0x70, 0x03, 0x5b, 0x04, 0x49, 0x0f, 0x85, 0x0f, 0xff, 0xff, 0xff, - 0xb8, 0x00, 0x00, 0x04, 0x00, 0xc7, 0x40, 0x10, 0xff, 0xff, 0x00, 0x00, 0xc7, 0x40, 0x14, 0x00, - 0x9b, 0xcf, 0x00, 0xc7, 0x40, 0x18, 0xff, 0xff, 0x00, 0x00, 0xc7, 0x40, 0x1c, 0x00, 0x93, 0xcf, - 0x00, 0xc6, 0x00, 0x2b, 0x89, 0x40, 0x02, 0x0f, 0x01, 0x10, 0xbe, 0x00, 0x00, 0x09, 0x00, 0xff, - 0x25, 0x14, 0x02, 0x09, 0x00, 0xf4, 0xeb, 0xfd + 0xcb, 0x0f, 0x84, 0x47, 0x01, 0x00, 0x00, 0x8b, 0x59, 0x04, 0x01, 0xcb, 0x8b, 0x49, 0x14, 0x83, + 0x3b, 0x11, 0x75, 0x05, 0x8b, 0x4b, 0x08, 0xeb, 0xcf, 0x83, 0x3b, 0x01, 0x75, 0x70, 0x8b, 0x43, + 0x04, 0x83, 0xe8, 0x08, 0xc1, 0xe8, 0x02, 0x66, 0x81, 0x3d, 0x06, 0x02, 0x09, 0x00, 0x04, 0x02, + 0x7d, 0x0e, 0x3d, 0xa0, 0x00, 0x00, 0x00, 0x7e, 0x13, 0xb8, 0xa0, 0x00, 0x00, 0x00, 0xeb, 0x0c, + 0x3d, 0x80, 0x02, 0x00, 0x00, 0x7e, 0x05, 0xb8, 0x80, 0x02, 0x00, 0x00, 0x89, 0xc6, 0xbf, 0x05, + 0x00, 0x00, 0x00, 0xf7, 0xf7, 0xa3, 0xe8, 0x01, 0x09, 0x00, 0x89, 0xf0, 0x91, 0x8d, 0x73, 0x08, + 0xbf, 0xd0, 0x02, 0x09, 0x00, 0xf3, 0xa5, 0x91, 0xa1, 0xe8, 0x01, 0x09, 0x00, 0xbf, 0xd0, 0x02, + 0x09, 0x00, 0x83, 0xf8, 0x00, 0x0f, 0x84, 0x94, 0x00, 0x00, 0x00, 0x83, 0x7f, 0x10, 0x0c, 0x7e, + 0x07, 0xc7, 0x47, 0x10, 0x02, 0x00, 0x00, 0x00, 0x48, 0x83, 0xc7, 0x14, 0xeb, 0xe4, 0x83, 0x3b, + 0x43, 0x75, 0x12, 0x8b, 0x43, 0x08, 0xa3, 0x70, 0x00, 0x09, 0x00, 0x8b, 0x43, 0x0c, 0xa3, 0x74, + 0x00, 0x09, 0x00, 0xeb, 0x6a, 0x83, 0x3b, 0x12, 0x75, 0x65, 0x66, 0x81, 0x3d, 0x06, 0x02, 0x09, + 0x00, 0x0f, 0x02, 0x7d, 0x06, 0x83, 0x7b, 0x0c, 0x00, 0x75, 0x54, 0xbf, 0x00, 0x00, 0x09, 0x00, + 0x8b, 0x43, 0x08, 0x89, 0x47, 0x18, 0x8b, 0x43, 0x0c, 0x89, 0x47, 0x3a, 0x8b, 0x43, 0x10, 0x66, + 0x89, 0x47, 0x12, 0x8b, 0x43, 0x14, 0x66, 0x89, 0x47, 0x14, 0x8b, 0x53, 0x18, 0x66, 0x89, 0x57, + 0x24, 0xf7, 0xe2, 0x89, 0x47, 0x1c, 0x66, 0x0f, 0xb6, 0x43, 0x1c, 0x66, 0x89, 0x47, 0x16, 0xbe, + 0x04, 0x00, 0x00, 0x00, 0x66, 0x8b, 0x44, 0x73, 0x1b, 0x66, 0xd1, 0xc0, 0x66, 0x89, 0x44, 0x77, + 0x24, 0x4e, 0x75, 0xf0, 0xc7, 0x47, 0x36, 0x02, 0x00, 0x00, 0x00, 0xc6, 0x47, 0x0f, 0x70, 0x03, + 0x5b, 0x04, 0x49, 0x0f, 0x85, 0xf6, 0xfe, 0xff, 0xff, 0xb8, 0x00, 0x00, 0x04, 0x00, 0xc7, 0x40, + 0x10, 0xff, 0xff, 0x00, 0x00, 0xc7, 0x40, 0x14, 0x00, 0x9b, 0xcf, 0x00, 0xc7, 0x40, 0x18, 0xff, + 0xff, 0x00, 0x00, 0xc7, 0x40, 0x1c, 0x00, 0x93, 0xcf, 0x00, 0xc6, 0x00, 0x2b, 0x89, 0x40, 0x02, + 0x0f, 0x01, 0x10, 0xbe, 0x00, 0x00, 0x09, 0x00, 0xff, 0x25, 0x14, 0x02, 0x09, 0x00, 0xf4, 0xeb, + 0xfd }; -unsigned int trampoline_len = 344; +unsigned int trampoline_len = 369; |