As per HID over I2C Protocol Specification[1] Version 1.00 Section 7.4,
the interrupt line used by the device is required to be level triggered.
Hence, this change updates the configuration of the HID over I2C devices
to be level triggered.
References:
[1] http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx
BUG=b:172846122
TEST=./util/abuild/abuild
Change-Id: I320198d56131cf54e0f73227479f69968719b2a7
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47417
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
As per HID over I2C Protocol Specification[1] Version 1.00 Section 7.4,
the interrupt line used by the device is required to be level triggered.
Hence, this change updates the configuration of the HID over I2C devices
to be level triggered.
References:
[1] http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx
BUG=b:172846122
TEST=./util/abuild/abuild
Change-Id: Ie7b82ea07ef97b2096d75229c445bd3a65cb3be0
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47416
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
As per HID over I2C Protocol Specification[1] Version 1.00 Section 7.4,
the interrupt line used by the device is required to be level triggered.
Hence, this change updates the configuration of the HID over I2C devices
to be level triggered.
References:
[1] http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx
BUG=b:172846122
TEST=emerge-dedede coreboot
Change-Id: I9d8fa57ae0f554896a4a0722e3e89567676382d4
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47415
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The trailing slash is required to make gerrit add me on changes for the
whole tree, not just for the directory itself, which obviously would
only change if being deleted or renamed.
This also fixes the behaviour for Felix Singer.
Change-Id: I601aebd4335c7326deca0118725a6f25cec524a9
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47547
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Add a helper function to print out debug info and add the MADT entry.
Change-Id: I1a00f87c6edef530c5352929ee9279782be4b112
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47299
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
The existing help text wasn't updated for Mandolin after it was copied
from an older reference board and contained some information that
doesn't apply to Mandolin.
Change-Id: Ib34abb2ee8b289df5f7085957042fe00ad506ca9
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47481
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
The defines for RX6110SA_SLAVE_ADR and RX6110SA_I2C_CONTROLLER are not
used anymore and can be deleted.
Change-Id: I3cddf7a9e2f757a22c729ae0f0ff767d55909b9c
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47236
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Tested-by: siemens-bot
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
This patch adds basic ACPI support for the RTC so that the OS is able to
use this RTC via the ACPI interface.
If the Linux kernel is able to find the RTC in ACPI scope, you should
see the following lines in dmesg, where [n] is an enumerated number:
rx6110 i2c-RX6110SA:00: rtc core: registered RX6110SA:00 as rtc[n]
rtc rtc[n]: Update timer was detected
Change-Id: I9b319e3088e6511592075b055f8fa3e2aedaa209
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47235
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
It’s common to annotate the closing endif, so do it for these four
files.
Change-Id: Ia5d071e1f544c9dea5af9c6bc3c605d9a0c5c0f5
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47477
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
List of changes:
1. Add new PCH ID 0x5181 into device/pci_ids.h
2. Update new PCH ID into common lpc.c
3. Add new PCH ID description into report_platform.c
TEST=Able to build and boot ADLRVP with new PCH ID.
Change-Id: I4343b7343876eb40c2955f6f4dd99d6446852dc0
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47474
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Work on this SoC was abandoned and never finished. It's not really
usable in its current state, so let's get rid of it.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I23453e3e47ac336ab61687004470e5e79172cafe
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47428
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Work on this mainboard was abandoned and never finished. It's not really
usable in its current state, so let's get rid of it.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I4cd2e2cd0ee69d9846472653a942fa074e2b924d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47427
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Selecting USE_CAR_NEM_ENHANCED_V1 as of now. This selection in Kconfig
programs IA32_L3_MASK_1 (0xc91) & IA32_L3_MASK_2 (0xc92). These will
select ways for eviction & non-eviction. TGL will have to switch back
to USE_CAR_NEM_ENHANCED_V2 once the IA32_L3_SF_MASK_1 (0x1891) &
IA32_L3_SF_MASK_2 (0x1892) programming requirements are understood.
Bug=b:171601324
BRANCH=volteer
Test=Build coreboot for volteer. Boot on SKU that has 4MB L3 cache.
Change-Id: Ifc77856e26ab26f9fbb2693f70c751f43337421b
Signed-off-by: Shreesh Chhabbi <shreesh.chhabbi@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47258
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This change switches the selection of CAR mode so that
INTEL_CAR_NEM_ENHANCED_V2 is the default unless mainboard
selects INTEL_CAR_NEM. INTEL_CAR_NEM is selected only by
mainboards using older silicon (ES1 or ES2) that did not
support NEM enhanced mode.
This enables NEM Enhanced Mode for TGL-U/Y RVPs.
Bug=b:171601324
BRANCH=volteer
Test=Build coreboot for volteer. Boot on SKU that has 4MB L3 cache.
Change-Id: Ib6e041261cb8ca9c6e602935da4962aac0d9ece5
Signed-off-by: Shreesh Chhabbi <shreesh.chhabbi@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47259
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Due to the phony dependency to check for openssl, vboot-futility
was always rebuilt, and because it was newer than coreboot-futility,
it was always copied over.
Do that in parallel often enough and you run into race conditions,
as we did on our builders. Mark check-openssl-presence as order-only
dependency so that it's executed (and can bail out) but doesn't force
regeneration of vboot-futility.
Change-Id: Ib7fb798096d423d6b6cba5d199e12fe5917c3b41
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47453
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Add the missing special function gpio pad groups for CNL-LP.
The groups and names are documented in the PCH EDS, in Linux
(linux/drivers/pinctrl/intel/pinctrl-cannonlake.c) and other places.
Also, see soc/intel/tigerlake for reference.
Change-Id: I0509552da6ffad395c2b89df1676e1903c783695
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45201
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Add the missing special function gpio pad groups for CNL-H.
The groups and names are documented in the PCH EDS, in Linux
(linux/drivers/pinctrl/intel/pinctrl-cannonlake.c) and other places.
Also, see soc/intel/tigerlake for reference.
Change-Id: Ib83aeef9f4b6aa174e61ccbd87fb7b6450ed773b
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45204
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Add the missing native functions for special gpio pads for CNL-H,
which are documented in the PCH EDS and other places.
Also, see soc/intel/tigerlake for reference.
Change-Id: I71339d66362d29806c91375c214e9fb84c989201
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45203
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The names of the GPIO_RSVD_* are documented in the PCH EDS, in Linux
(linux/drivers/pinctrl/intel/pinctrl-cannonlake.c) and other places.
Also, see soc/intel/tigerlake for reference.
Change-Id: Ifd6cabb646000c8dff695c5c4f7196b2779f1430
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45202
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Add the missing native functions for special gpio pads for CNL-LP,
which are documented in the PCH EDS and other places.
Also, see soc/intel/tigerlake for reference.
Change-Id: Iedb726aa3afdbbbedafb67f6b7668bf591c2b9b4
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The names of the GPIO_RSVD_* are documented in the PCH EDS, in Linux
(linux/drivers/pinctrl/intel/pinctrl-cannonlake.c) and other places.
Also, see soc/intel/tigerlake for reference.
Change-Id: I86c7159d9f48560c41efdfe49f162aef00499d13
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45200
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Introduce the `sir_unset_and_set_mask` helper and update the one PCI
read-modify-write operation that is somehow not reproducible.
Change-Id: I30ad6ef8ad97ee0a8dc2297fba5bbbfe24f00f1c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47030
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
The other two modes are not used by any mainboard, and the code seems to
be copied from older southbridges. As the code looks incorrect, drop it.
Change-Id: I374546279a85cead1aea13e0952bbfd6f643a75b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47022
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
The Asus F2A85-M, F2A85-M LE and F2A85-M PRO all have a Super I/O, and
therefore have legacy devices like a serial console.
Selecting `HUDSON_LEGACY_FREE` currently disable the serial console
during bootup in romstage, which is undesired.
So, deselect the symbol by default.
TEST=Boot Asus F2A85-M PRO and verify serial console is *not* disabled
during romstage.
Change-Id: Ia6588c0d4b2c24c7cb9da04805d13274c8ae295e
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47363
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Mike Banon <mikebdp2@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add support to check for the Power Management (PM) Status bit for
various internal devices like USB, CNVi etc. and log them into the event
log for debugging purposes.
BUG=b:172279037
BRANCH=volteer
Change-Id: Ib3d0bf33d780444f8240f749a3319212c985950d
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47227
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add support to check for the Power Management (PM) Status bit for
various internal devices like USB, CNVi etc. and log them into the event
log for debugging purposes.
BUG=b:172279037
TEST=Build and boot to OS in Drawlat. Ensure that the wake up event is
logged into the event log for one of the internal devices eg. USB
bluetooth.
8 | 2020-11-05 15:04:16 | S0ix Enter
9 | 2020-11-05 15:04:29 | S0ix Exit
10 | 2020-11-05 15:04:29 | Wake Source | PME - XHCI (USB 2.0 port) | 8
11 | 2020-11-05 15:04:29 | Wake Source | GPE # | 109
12 | 2020-11-05 15:05:08 | S0ix Enter
13 | 2020-11-05 15:05:14 | S0ix Exit
14 | 2020-11-05 15:05:14 | Wake Source | PME - XHCI (USB 2.0 port) | 8
15 | 2020-11-05 15:05:14 | Wake Source | GPE # | 109
Change-Id: I9f43675b698bf310f6b98b5e775d1259607abbcd
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47226
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It is too easy to confuse those with IA32_SMRR_PHYS_x registers.
Change-Id: Ice02ab6c0315a2be14ef110ede506262e3c0a4d5
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46896
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Actual support CBnT will be added later on.
Change-Id: Icc35c5e6c74d002efee43cc05ecc8023e00631e0
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46456
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Create the shuboz variant of the zork reference board by copying
the template files to a new directory named for the variant.
(Auto-Generated by create_coreboot_variant.sh version 4.2.0).
BUG=b:172021093
BRANCH=none
TEST=emerge-zork coreboot
Signed-off-by: Kane Chen <kane_chen@pegatron.corp-partner.google.com>
Change-Id: I3f62625f8cbde1c9adf8ab335edeb9e811e32679
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47152
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The code is based on autoport, with necessary modifications.
This laptop uses SMSC MEC1322 embedded controller, but the EC
interface is the same as the EliteBook laptops of previous generations
that use KBC1126 EC. So it still uses ec/hp/kbc1126, but does not need
EC firmware inserted into CBFS. We also need to leave the end of the
OEM flash content untouched, so the default ROM size is set to 12MiB
instead of 16MiB, and we need to modify the IFD when flashing.
Thanks to persmule for providing the laptop and pointing out how to
program the system flash chip of it.
Change-Id: I2328c43cbb1f488aa1d0ddd9116814d971e5d8ae
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45578
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
CB:46865 ("mb, soc/intel: Reorganize CNVi device entries in
devicetree") reorganized the devicetree entries to make the
representation of CNVi device consistent with other internal PCI
devices. Since a dummy generic device is added for the CNVi device,
`emit_sar_acpi_structures()` needs to first check if the device is PCI
before checking the vendor ID. This ensures that SAR table generation
is skipped only for PCIe devices with non-Intel vendor IDs and not for
the dummy generic device.
BUG=b:165105210
Change-Id: I3c8d18538b94ed1072cfcc108552f3a1ac320395
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47364
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Adds ACPI properties for WDT8762A device.
Per spec v0.8
HID name WDHT2002
T14=100ms
BUG=b:163561649
BRANCH=puff
TEST=emerge-puff coreboot and check system dmesg and evtest can get device.
Change-Id: I178e9d5aa1e1501d33b3cd4092f3f522bb6f1a74
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47280
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sam McNally <sammc@google.com>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Calculate the frequencies based on the appropriate MSRs and pass them to
SMBIOS tables generator. Ivybridge microarchitecture does not yet
implement CPUID 16H leaf used to obtain the required frequencies.
TEST=Intel Core i7-3770, TianoCore UEFI payload displays the CPU
frequency correctly equal 3.4GHz in Boot Manager Menu, dmidecode shows
correct frequencies according to Intel ARK, 3.4GHz base and 3.9GHz turbo
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Iefbae6111d39107eacac7e61654311646c6981eb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47058
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
We already have RFI UPD settings to mitigate RFI noise issues in
platform. These UPDs were not getting filled via devicetree but
needed to be filled from fsp_params.c
Exporting these UPDs to chip.h will allow OEM/ODMs to fill it
directly from devicetree and also allow us to control it based
on boards instead of keeping it common across SoCs.
BUG=b:171683785
BRANCH=None
TEST=Compilation works and we're able to fill UPD from devicetree.Value
gets reflected in FSP UPDs.
Change-Id: I495cd2294368e6b3035c48b9556a83418d5632de
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47286
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The X86 Qemu targets use the AMD64 SMM save state, but unlike
most AMD CPU's the PM ACPI SMI port is not configurable and uses
the Intel default APM_CNT, 0xb2 port.
This will be used by the common save state handler.
Change-Id: Ifee9476f628a2df710fb4340ce6a19b008df1033
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45814
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This prototype will be used outside of soc/amd.
Change-Id: Icc69cf8a910764b27edf64f0f527b8f6a9013121
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45813
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Currently coreboot has limited use for the SMM save state. Typically
the only thing needed is to get or set a few registers and to know
which CPU triggered the SMI (typically via an IO write). Abstracting
away different SMM save states would allow to put some SMM
functionality like the SMMSTORE entry in common places.
To save place platforms can select different SMM save sate ops that
should be implemented. For instance AMD platforms don't need Intel SMM
save state handling.
Some platforms can encounter CPUs with different save states, which
the code then handles at runtime by comparing the SMM save state
revision which is located at the same offset for all SMM save state
types.
Change-Id: I4a31d05c09065543424a9010ac434dde0dfb5836
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44323
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The SMM_ASEG code only supports up to 4 CPUs, so assert this at
buildtime.
Change-Id: I8ec803cd1b76f17f4dccd5c573179d542d54c277
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44322
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The ASEG smihandler bails out if an unsupported SMM save state
revision is detected. Now we have code to find the SMM save state
depending on the SMM save state revision so reuse this to do the same.
This also increases the loglevel when bailing out of SMM due to
unsupported SMM save state revision from BIOS_DEBUG to BIOS_WARNING,
given that the system likely still boots but won't have a functioning
smihandler.
Change-Id: I57198f0c85c0f7a1fa363d3bd236c3d41b68d2f0
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45471
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Karthikeyan Ramasubramanian