diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-12-21 07:01:31 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-12-26 08:11:30 +0000 |
| commit | e6b313da365e801decd18db4b5a5c97cbdd31e47 (patch) | |
| tree | db705d1ed57f608198d3dc5ac4f58b50276ee020 /src/cpu/x86 | |
| parent | 2bdc05d89b25f17a041f0c95362b9013fbc91bae (diff) | |
cpu/intel/car/p4-netburst: Add assert for SIPI_VECTOR_IN_ROM
Location of _start16bit in entry16.inc is about to see some changes,
lets make sure they don't break the alignment requirement here.
Change-Id: Id8a0964982387e5321e8c89254922e1242cf85ee
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/16bit/entry16.ld | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/src/cpu/x86/16bit/entry16.ld b/src/cpu/x86/16bit/entry16.ld index 66bfbd58ca..b5c1592691 100644 --- a/src/cpu/x86/16bit/entry16.ld +++ b/src/cpu/x86/16bit/entry16.ld @@ -1,3 +1,23 @@ - gdtptr16_offset = gdtptr16 & 0xffff; - nullidt_offset = nullidt & 0xffff; - ap_sipi_vector_in_rom = (_start16bit >> 12) & 0xff; +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +gdtptr16_offset = gdtptr16 & 0xffff; +nullidt_offset = nullidt & 0xffff; + +/* Symbol _start16bit must be aligned to 4kB to start AP CPUs with + * Startup IPI message without RAM. + */ +#if CONFIG(SIPI_VECTOR_IN_ROM) +_bogus = ASSERT((_start16bit & 0xfff) == 0, "Symbol _start16bit is not at 4 KiB boundary"); +ap_sipi_vector_in_rom = (_start16bit >> 12) & 0xff; +#endif |