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Certain CPUs require the default SMM region to be backed up
on resume after a suspend. The reason is that in order to
relocate the SMM region the default SMM region has to be used.
As coreboot is unaware of how that memory is used it needs to
be backed up. Therefore provide a common method for doing this.
Change-Id: I65fe1317dc0b2203cb29118564fdba995770ffea
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5216
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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The Bay Trail SMM save state revision is 0x0100.
Add support for this save state area using the
type named em64t100_smm_state_save_area_t.
BUG=chrome-os-partner:22862
BRANCH=None
TEST=Built and booted using this structure with forthcoming CLs.
Change-Id: Iddd9498ab9fffcd865dae062526bda2ffcdccbce
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173981
Reviewed-on: http://review.coreboot.org/4890
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
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This commit adds a new Kconfig option for the LynxPoint
southbridge that will have coreboot route all of the USB
ports to the XHCI controller in the finalize step (i.e.
after the bootloader) and disable the EHCI controller(s).
Additionally when doing this the XHCI USB3 ports need
to be put into an expected state on resume in order to make
the kernel state machine happy.
Part of this could also be done in depthcharge but there
are also some resume-time steps required so it makes sense
to keep it all together in coreboot.
This can theoretically save ~100mW at runtime.
Verify that the EHCI controller is not found in Linux and
that booting from USB still works.
Change-Id: I3ddfecc0ab12a4302e6034ea8d13ccd8ea2a655d
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/63802
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4407
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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With the LynxPoint chipset there are more than 16
possible GPIOs that can trigger an SMI so we need
a mainboard handler that can support this.
There are only a handful of users of this function
so just change them all to use the new prototype.
Change-Id: I3d96da0397d6584f713fcf6003054b25c1c92939
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/49530
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4145
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Change-Id: Iadc813bc8208278996b2b1aa20cfb156ec06fac9
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3755
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The smm_handler_t type was added before the introduction
of the asmlinkage macro. Now that asmlinkage is available
use it.
Change-Id: I85ec72cf958bf4b77513a85faf6d300c781af603
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3215
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
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Some of the functions called from assembly assume the standard
x86 32-bit ABI of passing all arguments on the stack. However,
that calling ABI can be changed by compiler flags. In order to
protect against the current implicit calling convention annotate
the functions called from assembly with the cdecl function
attribute. That tells the compiler to use the stack based parameter
calling convention.
Change-Id: I83625e1f92c6821a664b191b6ce1250977cf037a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2794
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Currently the OS is free to use the memory located at the default
SMRAM space because it is not marked reserved in the e820. This can
lead to memory corruption on S3 resume because SMM setup doesn't save
this range before using it to relocate SMRAM.
Resulting tables:
coreboot memory table:
0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
1. 0000000000001000-000000000002ffff: RAM
2. 0000000000030000-000000000003ffff: RESERVED
3. 0000000000040000-000000000009ffff: RAM
4. 00000000000a0000-00000000000fffff: RESERVED
5. 0000000000100000-0000000000efffff: RAM
6. 0000000000f00000-0000000000ffffff: RESERVED
7. 0000000001000000-00000000acebffff: RAM
8. 00000000acec0000-00000000acffffff: CONFIGURATION TABLES
9. 00000000ad000000-00000000af9fffff: RESERVED
10. 00000000f0000000-00000000f3ffffff: RESERVED
11. 00000000fed10000-00000000fed19fff: RESERVED
12. 00000000fed84000-00000000fed84fff: RESERVED
13. 0000000100000000-000000018f5fffff: RAM
e820 map has 13 items:
0: 0000000000000000 - 0000000000030000 = 1 RAM
1: 0000000000030000 - 0000000000040000 = 2 RESERVED
2: 0000000000040000 - 000000000009f400 = 1 RAM
3: 000000000009f400 - 00000000000a0000 = 2 RESERVED
4: 00000000000f0000 - 0000000000100000 = 2 RESERVED
5: 0000000000100000 - 0000000000f00000 = 1 RAM
6: 0000000000f00000 - 0000000001000000 = 2 RESERVED
7: 0000000001000000 - 00000000acec0000 = 1 RAM
8: 00000000acec0000 - 00000000afa00000 = 2 RESERVED
9: 00000000f0000000 - 00000000f4000000 = 2 RESERVED
10: 00000000fed10000 - 00000000fed1a000 = 2 RESERVED
11: 00000000fed84000 - 00000000fed85000 = 2 RESERVED
12: 0000000100000000 - 000000018f600000 = 1 RAM
Booted and checked e820 as well as coreboot table information.
Change-Id: Ie4985c748b591bf8c0d6a2b59549b698c9ad6cfe
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2688
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Add support for SMM modules by leveraging the RMODULE lib. This allows
for easier dynamic SMM handler placement. The SMM module support
consists of a common stub which puts the executing CPU into protected
mode and calls into a pre-defined handler. This stub can then be used
for SMM relocation as well as the real SMM handler. For the relocation
one can call back into coreboot ramstage code to perform relocation in
C code.
The handler is essentially a copy of smihandler.c, but it drops the TSEG
differences. It also doesn't rely on the SMM revision as the cpu code
should know what processor it is supported.
Ideally the CONFIG_SMM_TSEG option could be removed once the existing
users of that option transitioned away from tseg_relocate() and
smi_get_tseg_base().
The generic SMI callbacks are now not marked as weak in the
declaration so that there aren't unlinked references. The handler
has default implementations of the generic SMI callbacks which are
marked as weak. If an external compilation module has a strong symbol
the linker will use that instead of the link one.
Additionally, the parameters to the generic callbacks are dropped as
they don't seem to be used directly. The SMM runtime can provide the
necessary support if needed.
Change-Id: I1e2fed71a40b2eb03197697d29e9c4b246e3b25e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2693
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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In the file `COPYING` in the coreboot repository and upstream [1]
just one space is used.
The following command was used to convert all files.
$ git grep -l 'MA 02' | xargs sed -i 's/MA 02/MA 02/'
[1] http://www.gnu.org/licenses/gpl-2.0.txt
Change-Id: Ic956dab2820a9e2ccb7841cab66966ba168f305f
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2490
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
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According to both Haswell and the SandyBridge/Ivybridge
BWGs the save state area actually starts at 0x7c00 offset
from 0x8000. Update the em64t101_smm_state_save_area_t
structure and introduce a define for the offset.
Note: I have no idea what eptp is. It's just listed in the
haswell BWG. The offsets should not be changed.
Change-Id: I38d1d1469e30628a83f10b188ab2fe53d5a50e5a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2515
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Using global variables with the TSEG is a bad idea because
they are not relocated properly right now. Instead make
the variables static and add accessor functions for the
rest of SMM to use.
At the same time drop the tcg/smi1 pointers as they are
not setup or ever used. (the debug output is added back
in a subsequent commit)
Change-Id: If0b2d47df4e482ead71bf713c1ef748da840073b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1764
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This function is exported so it can be used in other
places that need similar relocation due to TSEG.
Change-Id: I68b78ca32d58d1a414965404e38d71977c3da347
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1310
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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There are enough differences that it is worth defining the
proper map for the sandybridge/ivybridge CPUs. The state
save map was not being addressed properly for TSEG and
needs to use the right offset instead of pointing in ASEG.
To do this properly add a required southbridge export to
return the TSEG base and use that where appropriate.
Change-Id: Idad153ed6c07d2633cb3d53eddd433a3df490834
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1309
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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rename from mainboard_apm_cnt to mainboard_smi_apmc to match the function
naming scheme of the other handlers. Add prototype for mainboard_smi_sleep
(mainboard specific S3 sleep handlers in SMM) that is required by Sandybridge.
Change-Id: Ib479397e460e33772d90d9d41dba267e4e7e3008
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/933
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Traditionally coreboot's SMM handler runs in ASEG (0xa0000),
"behind" the graphics memory. This approach has two issues:
- It limits the possible size of the SMM handler (and the
number of CPUs supported in a system)
- It's not considered a supported path anymore in newer CPUs.
Change-Id: I9f2877e46873ab2ea8f1157ead4bc644a50be19e
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Acked-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/842
Reviewed-by: Peter Stuge <peter@stuge.se>
Tested-by: build bot (Jenkins)
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Move the SMM MSR init to a code run per CPU. Introduce global SMM_BASE define,
later all 0xa0000 could be changed to use it. Remove the unnecessary test if
the smm_init routine is called once (it is called by BSP only) and also remove
if lock bit is set becuase this bit is cleared by INIT it seems.
Add the defines for fam10h and famfh to respective files, we do not have any
shared AMD MSR header file.
Tested on M2V-MX SE with dualcore CPU.
Change-Id: I1b2bf157d1cc79c566c9089689a9bfd9310f5683
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Reviewed-on: http://review.coreboot.org/82
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I002845cf7a37cd6885456131826ae0ba681823ef
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/64
Tested-by: build bot (Jenkins)
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Overwriting the SMM Area on resume leaves us with
all variables cleared out, i.e., the GNVS pointer
is no longer available, which makes SMIF function
calls impossible.
Change-Id: I08ab4ffd41df0922d63c017822de1f89a3ff254d
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/34
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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in the current code, the defines for the APM_CNT (0xb2) register
are duplicated in almost every place where it is used. define those
values in cpu/x86/smm.h, and only include this file.
And while at it, fixup whitespace.
Change-Id: Iae712aff53322acd51e89986c2abf4c794e25484
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/4
Tested-by: build bot (Jenkins)
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motherboards can use this hook to get notified if someone writes
to the APM_CNT port (0xb2). If the hook returns 1, the chipset
specific hook is also skipped.
Change-Id: I05f1a27cebf9d25db8064f2adfd2a0f5759e48b5
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/3
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6201 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5553 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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while others dislike them being extra commits, let's clean them up once and
for all for the existing code. If it's ugly, let it only be ugly once :-)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5236 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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- allow northbridge and cpu handlers, too
- support for older rev 2 cpus
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5141 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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- Consistently use the same wording and formatting for all license headers.
- Remove useless whitespace, add missing whitespace, fix indentation.
- Add missing "This file is part of the coreboot project." where needed.
- Change "(C) Copyright John Doe" to "Copyright (C) John Doe" for consistency.
- Add some missing "(C)" strings and copyright years where needed.
- Move random comments and file descriptions out of the license header.
- Drop incorrect file descriptions completely (e.g. lpc47m10x/Makefile.inc).
There should be no changes in _content_ of the license headers, if you spot
such changes that's a bug, please report!
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5127 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Use the (almost) same strict CFLAGS in v2 that we use on v3. And fix a few
include files and missing prototypes. Also, fix up the Config-abuild.lb files
to properly work for cross compiling.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4000 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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* move mainboard dependent code into a mainboard SMI handler.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3982 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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sense, too). Have one u64 instead of three.
In order to use the old bios emulator, you have to do nothing. (Default, if
CONFIG_PCI_ROM_RUN is enabled)
In order to use yabel in your target, you need to add the following lines to
your config:
uses CONFIG_PCI_OPTION_ROM_RUN_YABEL
default CONFIG_PCI_OPTION_ROM_RUN_YABEL=1
In order to use vm86 in your target, you need to add the following lines to
your config:
uses CONFIG_PCI_OPTION_ROM_RUN_VM86
default CONFIG_PCI_OPTION_ROM_RUN_VM86=1
Note: vm86 only works on platforms with _RAMBASE in the lower megabyte.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Joseph Smith <joe@settoplinux.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3965 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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This includes an early SMI handler.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3701 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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