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2023-04-04cpu/x86/lapic,pae,tsc/Makefile: use all_x86 targetFelix Held
Use the newly introduced 'all_x86' make target to add the compilation unit to all stages that run on the x86 cores, but not to verstage on PSP. TEST=Timeless build for Mandolin results in identical image. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I181c3207bb1ebe9c5080ef3a3cdda8146ed05822 Reviewed-on: https://review.coreboot.org/c/coreboot/+/74152 Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-03-13cpu/x86/cache: CLFLUSH programs to memory before runningArthur Heymans
When cbmem is initialized in romstage and postcar placed in the stage cache + cbmem where it is run, the assumption is made that these are all in UC memory such that calling INVD in postcar is OK. For performance reasons (e.g. postcar decompression) it is desirable to cache cbmem and the stage cache during romstage. Another reason is that AGESA sets up MTRR during romstage to cache all dram, which is currently worked around by using additional MTRR's to make that UC. TESTED on asus/p5ql-em, up/squared on both regular and S3 resume bootpath. Sometimes there are minimal performance improvements when cbmem is cached (few ms). Change-Id: I7ff2a57aee620908b71829457ea0f5a0c410ec5b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37196 Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com> Reviewed-by: Kapil Porwal <kapilporwal@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-03-10mp_init: Wait longer for APs to check inPatrick Rudolph
On IBM/SBP1 with 384 cores it takes a while for all APs to check in. Use linear scaling instead of hardcoding an arbitrary limit for the timeout. Change-Id: If020a3fa985bfc7fd2f0aa836dc04e6647a1a450 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/73369 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Shuo Liu <shuo.liu@intel.com> Reviewed-by: TangYiwei Reviewed-by: Naresh <naresh.solanki.2011@gmail.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2023-03-08cpu/x86,amd: drop unused LOGICAL_CPUS Kconfig symbolFelix Held
The LOGICAL_CPUS Kconfig option is always true and also not user- configurable, so it can be dropped. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ie4866de003058ec0f99495b405e26dfd7ba1fa28 Reviewed-on: https://review.coreboot.org/c/coreboot/+/73553 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com> Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
2023-03-05cpu/x86/smm: Add PCI resource store functionalityRobert Zieba
In certain cases data within protected memmory areas like SMRAM could be leaked or modified if an attacker remaps PCI BARs to point within that area. Add support to the existing SMM runtime to allow storing PCI resources in SMRAM and then later retrieving them. BRANCH=guybrush BUG=b:186792595 TEST=builds Signed-off-by: Robert Zieba <robertzieba@google.com> Change-Id: I23fb1e935dd1b89f1cc5c834cc2025f0fe5fda37 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67931 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
2023-02-27tree: Move 'asmlinkage' before type 'void'Elyes Haouas
Move 'asmlinkage' before the function type for consistency. Change-Id: I293590ef917b78c6ed3d151cd0080e42d0f10651 Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/73259 Reviewed-by: Felix Singer <felixsinger@posteo.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-02-15cpu/x86/smm: Enable setting SMM console log level from mainboardJohnny Lin
Add a Kconfig RUNTIME_CONFIGURABLE_SMM_LOGLEVEL that enables mainboard to override mainboard_set_smm_log_level for SMM log level. This can let SMM have different log level than other stages for more flexibility. Another reason is that getting certain data that requires searching from flash VPD or CMOS is not very ideal to be done in SMM, so in this change the value can be passed via the member variable in struct smm_runtime and be referenced directly in SMM. One example is that mainboard can get the desired SMM log level from VPD/CMOS, and pass SMM console log level via the variable and in SMM it can be referenced in get_console_loglevel() override function directly. Tested=On OCP Delta Lake, verified SMM log level can be overridden. Change-Id: I81722a4f1bf75ec942cc06e403ad702dfe938e71 Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49460 Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
2023-02-07tree: Drop repeated wordsAlexander Goncharov
Found-by: linter Change-Id: I7c6d0887a45fdb4b6de294770a7fdd5545a9479b Signed-off-by: Alexander Goncharov <chat@joursoir.net> Reviewed-on: https://review.coreboot.org/c/coreboot/+/72795 Reviewed-by: Nicholas Chin <nic.c3.14@gmail.com> Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Erik van den Bogaert <ebogaert@eltan.com> Reviewed-by: Frans Hendriks <fhendriks@eltan.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-12-23cpu/x86: Set up a separate stack for APsArthur Heymans
APs use a lot less stack, so set up a separate stack for those in .bss. Now that CPU_INFO_V2 is the only code path that is used, there is no need to align stacks in c_start.S. Change-Id: I7a681a2e3003da0400843daa5d6d6180d952abf5 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69123 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2022-12-16cpu/x86/mtrr: rename local cpu_idx variable and make it constFelix Held
After the previous patch this local variable is no longer the mpinit CPU index, but the LAPIC ID, so rename it. Since it will only be set once, it can also be marked as const. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I4fad4e1095478213727bee8586852f9d5a7d18e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/70798 Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
2022-12-15cpu/x86/mtrr: use lapicid instead of cpu_index callsFelix Held
The cpu_index function can't be used before mpinit, so use lapicid calls instead. This fixes the regression introduced by commit 4c3749884d71 ("cpu/x86/mtrr: Print cpu index number when set up MTRRs for BSP/APs") and also reverts also commit b3261661c703 ("cpu/x86/mtrr/mtrr: fix printk format strings"), since lapicid returns an unsigned int while cpu_index returns an unsigned long. TEST=Mandolin boots again and doesn't fail when it first tries to print the MTRR configuration Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I0d226704051ab171891775a618ce7897b74fde16 Reviewed-on: https://review.coreboot.org/c/coreboot/+/70797 Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
2022-12-14cpu/x86/mp_init.c: Improve AP entry pointArthur Heymans
Make sure that a pointer exists before dereferencing it. Change-Id: I1a9833bb9686451224249efe599346f64dc37874 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/70011 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2022-12-12cpu/x86/mtrr/mtrr: fix printk format stringsFelix Held
Commit 4c3749884d71 ("cpu/x86/mtrr: Print cpu index number when set up MTRRs for BSP/APs") added the CPU index number to some prints, but used %x as format specifier. The cpu_index() call however has a return type of unsigned long, so %lx needs to be used instead. For consistency, also change the type of the cpu_idx local variable in commit_fixed_mtrrs to unsigned long and adjust the printk format specifier accordingly. TEST=The code builds again on my computer Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I4b68f8355932b2b75db5f453a0a735185b24b02f Reviewed-on: https://review.coreboot.org/c/coreboot/+/70664 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-12-12cpu/x86/mtrr: Print cpu index number when set up MTRRs for BSP/APsKane Chen
MTRR setup will be assigned to all APs. It's hard to debug race condition without showing apic id. Change-Id: Ifd2e1e411f86fa3ea42ed50546facec31b89c3e1 Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64467 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
2022-12-10cpu/cpu.h: Change the function signatureArthur Heymans
There is no need to pass the CPU index around. Change-Id: Iad8e3cb318e6520ac5877118dbf43597dedb75b9 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69504 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2022-12-07mb,sb,soc/intel: Drop useless IO trap handlersKyösti Mälkki
There are four requirements for the SMI to hit a printk() this commit now removes. Build must have DEBUG_SMI=y, otherwise any printk() is a no-op inside SMM. ASL must have a TRAP() with argument 0x99 or 0x32 for SMIF value. Platform needs to have IO Trap #3 enabled at IO 0x800. The SMI monitor must call io_trap_handler for IO Trap #3. At the moment, only getac/p470 would meet the above criteria with TRAP(0x32) in its DSDT _INI method. The ASL ignores any return value of TRAP() calls made. A mainboard IO trap handler should have precedence over a southbridge IO trap handler. At the moment we seem to have no cases of the latter to support, so remove the latter. Change-Id: I3a3298c8d9814db8464fbf7444c6e0e6ac6ac008 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/70365 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-11-17cpu/x86/Kconfig: Drop unused Kconfig symbolElyes Haouas
Change-Id: Id50ebecdaddcce426b15d535afcc3e755f2c5a35 Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69336 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-11-17sb/intel/common: Drop duplicate smi_set_eos()Kyösti Mälkki
We have equivalent southbridge_smi_set_eos(). Change-Id: I03a48f0ec9efac2a220aa4ca502a5f504d78c585 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69668 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-11-16cpu/x86/smm: Use common SMM_ASEG regionKyösti Mälkki
Change-Id: Idca56583c1c8dc41ad11d915ec3e8be781fb4e48 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69665 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-11-12cpu/x86: Set thread local storage in C codeArthur Heymans
Doing this in C code is way easier to understand. Also the thread local storage is now in .bss instead of the AP stack. This makes it more robust against stack overflows, as APs stacks overflow in each other. TESTED: work on qemu. Change-Id: I19d3285daf97798a2d28408b5601ad991e29e718 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69435 Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-11-12include/cpu/msr.h: transform into an unionArthur Heymans
This makes it easier to get the content of an msr into a full 64bit variable. Change-Id: I1b026cd3807fd68d805051a74b3d31fcde1c5626 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68572 Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-10cpu/x86/Kconfig.debug_cpu: Drop unused symbolArthur Heymans
Change-Id: I2b611773e596bea4788b05a3f58485fb3e002402 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69362 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2022-11-09Revert "mb/aopen/dxplplusu: Remove board"Kyösti Mälkki
This reverts commit eb76a455cd39ec59b7f2ba28baeec9538befd59e and applies minor fixes to make it build again. PARALLEL_MP was working prior to board removal and no relevant SMI handlers were implemented. So NO_SMM choice is now selected. Change-Id: Ia1cd02278240d1b5d006fb2a7730d3d86390f85b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69339 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-11-09cpu/*: Drop PARALLEL_MP leftoversArthur Heymans
These symbols and codepaths are unused now so drop them. Change-Id: I7c46c36390f116f8f8920c06e539075e60c7118c Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69361 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-11-09cpu/x86/smm/module_loader: Fix ASEG loadingArthur Heymans
This code was never tested with SSE enabled. Now qemu enables it and FX_SAVE encroaches on the save states. Without SSE enabled the handler just happened to be aligned downwards enough to have the save states fit. With SSE enabled that's not the case. The proper fix is to give the code setting up stubs the right base address, which is the same as for the TSEG codepath. Change-Id: I45355efb274c6ddd09a6fb57743d2f6a5b53d209 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69233 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2022-11-08cpu: Include <cpu/cpu.h> instead of <arch/cpu.h>Elyes Haouas
Also sort includes. Change-Id: Ia4a3807e45777e2a596878fe09e3c80b1fd2704d Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69037 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-11-07cpu/x86: Drop !CPU_INFO_V2 codeArthur Heymans
Now that all platforms use parallel_mp this is the only codepath used for cpu_info() local thread storage. Change-Id: I119214e703aea8a4fe93f83b784159cf86d859d3 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69122 Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-07cpu/x86: Drop LEGACY_SMP_INITArthur Heymans
This codepath is deprecated after the 4.18 release. Change-Id: I7e90f457f3979781d06323ef1350d5fb05a6be43 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69121 Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-07{cpu/nb}/amd/family15tn: Remove platformArthur Heymans
This platform use the LEGACY_SMP_INIT which is to be deprecated after release 4.18. Change-Id: I18eb1c1ccad16980a4e57318dec411b82c45b25a Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69116 Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-07mb/aopen/dxplplusu: Remove boardArthur Heymans
This board use the LEGACY_SMP_INIT which is to be deprecated after release 4.18. Change-Id: Idf37ade31ddb55697df1a65062c092a0a485e175 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69114 Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-05cpu/x86/mp_init.c: Use existing code to create cpu struct deviceArthur Heymans
Change-Id: I80baadd405b31d6be2fdbb894b0f4b7c775da6f8 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64341 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-11-03Revert "cpu/x86/mp_init.c: Set a bogus initial lapic_id"Felix Held
This reverts commit 1bb9786da30e ("cpu/x86/mp_init.c: Set a bogus initial lapic_id"), since it breaks MP init on amd/mandolin: [INFO ] CPU #0 initialized [INFO ] Initializing CPU #3 [INFO ] Initializing CPU #1 [INFO ] Initializing CPU #2 [EMERG] CPU: missing CPU device structureCPU: vendor AMD device 810f81 [DEBUG] CPU: family 17, model 18, stepping 01 [DEBUG] microcode: patch id to apply = 0x08108109 [INFO ] microcode: being updated to patch id = 0x08108109 succeeded [INFO ] CPU #1 initialized [ERROR] MP record 3 timeout. [INFO ] bsp_do_flight_plan done after 1206 msecs. [ERROR] MP initialization failure. [EMERG] mp_init_with_smm failed. Halting. TEST=The board boots again with the revert applied Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ic1cae88f7345f9ff79e8f6e574521095b57c8cb7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/69186 Reviewed-by: Jason Glenesk <jason.glenesk@amd.corp-partner.google.com> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com> Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-11-03cpu/x86/mp_init.c: Handle failed init_bsp()Arthur Heymans
Bail out of mp_init if this function fails. Change-Id: I7be5d6c32458ba98f4f8c5c9340790ff989c91e7 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69109 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-11-03cpu/x86/mp_init.c: Set a bogus initial lapic_idArthur Heymans
This makes it easier to catch errors later if the ap_init code fails to properly set things up. Change-Id: I938faf042bfa4fe1fc39e78ab740c9b210bc105c Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69108 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
2022-10-28cpu/x86/mp_init.c: Use linked list data structuresArthur Heymans
There is no need to keep track of device structures separately. Change-Id: Ie728110fc8c60fec94ae4bedf74e17740cf78f67 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64340 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2022-10-27cpu/x86/mp_init: adjust timeout for final SIPIJonathan Zhang
Adjust timeout for final SIPI to satisfy some to-be-launched server processors. Add a spew print to display how long it takes for the APs to be ready. This is intended to facilitate only troubleshooting and trend analysis. Change-Id: Id958f18bdcb34d76df8aa443161123252524328e Signed-off-by: Jonathan Zhang <jonzhang@meta.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68262 Reviewed-by: Christian Walter <christian.walter@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-10-26cpu/x86: Clean up includesElyes Haouas
Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: I01c6651079333686cb0eb68e89e56d7907868124 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68204 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
2022-10-26cpu/x86/Kconfig: Enable LAPIC remap mitigation on likely affect NBArthur Heymans
Pre-sandy bridge hardware is likely affected by the sinkhole vulnerability. Intel sandy bridge and newer has hardware mitigations against this attack according to https://github.com/xoreaxeaxeax/sinkhole. Change-Id: I52cb20e0edac62475597b31696f38d0ffc6080de Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37321 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-10-12cpu/x86/64bit: Fix building with -jxArthur Heymans
config.h is a dependency so add it. Change-Id: Iac87039dd43aa75d49766b9a239fbd841ca6850c Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68244 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-10-06cpu/x86/pae/pgtbl.c: Clean up includes and add <types.h>Elyes Haouas
Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: I0ab39ff20b0fb59026063e064e20ce901c2985fe Reviewed-on: https://review.coreboot.org/c/coreboot/+/68042 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@gmail.com>
2022-10-06cpu/x86/smm/smm_module_loader.c: Clean up includesElyes Haouas
Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: I36c54e62797e67c1732f8deaf8843daf35610e22 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68032 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@gmail.com>
2022-10-06cpu/x86/mtrr/mtrr.c: Add missing <stdbool.h>Elyes Haouas
Remove <stdint.h>, <stddef.h> and add <stdbool.h>. All of them are included through <types.h>. Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: If5296988c68302896e3676d7b80d0f133d5d4264 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68031 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@gmail.com>
2022-09-24cpu/x86/smm/smihandler: use lapicid()Felix Held
Replace nodeid() function in cpu/x86/smm/smihandler.c with calling lapicid() from include/cpu/x86/lapic.h. TEST=Timeless build for lenovo/g505s which includes this file in the build results in identical firmware image. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I336ca9888e24e4d6f10a81cc4f3760c9d7c8f4bc Reviewed-on: https://review.coreboot.org/c/coreboot/+/67777 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
2022-09-24cpu/x86/mp_init: drop unused MAX_APIC_IDS defineFelix Held
Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I599e26a40ab584232614440612e95c91a698df27 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67775 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2022-09-24include/cpu/x86/mtrr: define NUM_FIXED_MTRRS once in mtrr.hFelix Held
Instead of defining NUM_FIXED_MTRRS in both cpu/x86/mp_init.h and cpu/x86/mtrr/mtrr.c in two different ways that will evaluate to the same value, define it once in include/cpu/x86/mtrr.h which is included in both C files. TEST=Timeless build for amd/mandolin results in identical firmware image Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I71cec61e22f5ce76baef21344c7427be29f193f8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67774 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
2022-09-23cpu/x86/smm/smihandler: use existing LAPIC ID register definitionFelix Held
Instead of redefining the register address in smihandler.c, use the existing definitions from include/cpu/x86/lapic_def.h. TEST=Timeless build for lenovo/g505s which includes this file in the build results in identical firmware image. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Id22f9b5ce53c7bced6bbcc3f5026d4c793b34f78 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67776 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-09-22cpu/x86/smm/smm_module_loader.c: Fix STM setupEugene Myers
CB:63475 inadvertently disabled the STM by moving its load point off of the MSEG boundry, which is a hardware requirement. In addition, the BIOS resource list cannot be located within the MSEG. This patch fixes the issue by moving the STM load point to the MSEG boundry and placing the bios resource list just below the MSEG where the STM setup functions can find it. Fixes: commit 5747f6c (cpu/x86/smm_module_loader.c Rewrite setup) Signed-off-by: Eugene Myers <edmyers@tycho.nsa.gov> Change-Id: I7359939063bb1a172fcb701551c099edebfbedd5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67665 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Eugene Myers <cedarhouse1@comcast.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-09-15soc/amd: Do SMM relocation via MSRArthur Heymans
AMD CPUs have a convenient MSR that allows to set the SMBASE in the save state without ever entering SMM (e.g. at the default 0x30000 address). This has been a feature in all AMD CPUs since at least AMD K8. This allows to do relocation in parallel in ramstage and without setting up a relocation handler, which likely results in a speedup. The more cores the higher the speedup as relocation was happening sequentially. On a 4 core AMD picasso system this results in 33ms boot speedup. TESTED on google/vilboz (Picasso) with CONFIG_SMI_DEBUG: verify that SMM is correctly relocated with the BSP correctly entering the smihandler. Change-Id: I9729fb94ed5c18cfd57b8098c838c08a04490e4b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64872 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-09-14timer: Change timer util functions to 64-bitRob Barnes
Since mono_time is now 64-bit, the utility functions interfacing with mono_time should also be 64-bit so precision isn't lost. Fixed build errors related to printing the now int64_t result of stopwatch_duration_[m|u]secs in various places. BUG=b:237082996 BRANCH=All TEST=Boot dewatt Change-Id: I169588f5e14285557f2d03270f58f4c07c0154d5 Signed-off-by: Rob Barnes <robbarnes@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/66170 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-07-25arch/x86: Fix MAX_CPUS check proper for late X2APIC configSubrata Banik
The X2APIC_LATE_WORKAROUND kconfig allows bringing APs in XAPIC mode initially hence, it won't work if LAPIC ID is > 0xff. This patch ensures the MAX_CPUS logic is appropriate while selecting X2APIC_LATE_WORKAROUND kconfig from SoC. BUG=b:219061518, b:219053812 TEST=Able to build Google/Rex. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I466e6cc568024a9dea80af21e0ebf3572e74a1f1 Reviewed-on: https://review.coreboot.org/c/coreboot/+/66110 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-07-18cpu/x86: Allow SoC to select the `X2APIC_LATE_WORKAROUND`Subrata Banik
Intel Meteor Lake SoC expects to select late x2APIC enablement where AP bring up will use xAPIC and later x2APIC gets enabled using CPU init. This patch provides an option where SoC code choose the correct LAPIC access mode using choice selection. BUG=b:219061518, b:219053812 TEST=Able to build Google/Rex. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I6b50a0f5e39a95c25cd2c72219d2b402550a6fad Reviewed-on: https://review.coreboot.org/c/coreboot/+/65786 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-07-18arch/x86: Add X2APIC_LATE_WORKAROUNDSubrata Banik
Add option to do AP bringup with LAPICs in XAPIC mode and switch to X2APIC later in CPU init. Change-Id: I94c9daa3bc7173628f84094a3d5ca59e699ad334 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/65766 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-07-17cpu: Get rid of unnecessary blank line {before,after} barceElyes HAOUAS
Change-Id: I9b710d279da6db9125519f58ecba109a4d9fa8e3 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/61554 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <felixsinger@posteo.net>
2022-07-13cpu/x86/mp_init: retype do_smm element in mp_state struct to boolFelix Held
The do_smm struct element in the mp_state struct was an int even though it only had two possible states, so change it to bool to make this more obvious. Also change the return type of is_smm_enabled from int to bool. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I8d2d95f0497649d67565243d14a5ab9c9cdda412 Reviewed-on: https://review.coreboot.org/c/coreboot/+/65776 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-06-15cpu/x86/smm/smm_module_loader.c: Fix formatted printElyes Haouas
This fixes following errors when building GA-945GCM-S2L with clang 14.0.5. CC ramstage/cpu/x86/smm/smm_module_loader.o src/cpu/x86/smm/smm_module_loader.c:180:10: error: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] region_offset(&cpus[i].stub_code), i); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/cpu/x86/smm/smm_module_loader.c:184:20: error: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] __func__, region_offset(&cpus[0].stub_code), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/cpu/x86/smm/smm_module_loader.c:185:10: error: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] region_offset(&cpus[i].stub_code), size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/cpu/x86/smm/smm_module_loader.c:349:52: error: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] printk(BIOS_DEBUG, "%-12s [0x%lx-0x%lx]\n", name, region_offset(&region), ~~~ ^~~~~~~~~~~~~~~~~~~~~~ %zx src/cpu/x86/smm/smm_module_loader.c:350:9: error: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat] region_end(&region)); Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: I59f20aacf91cb50fb194a84082a643b34c6c1ae5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/65154 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-06-03cpu/x86/smm_module_loader: Use struct region in cpu mapArthur Heymans
We use a region later on so we might as well use a region from the start. This simplifies the computations too. Change-Id: Iffa36ccb89c36401d3856b24364216e83ca35f91 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64609 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2022-06-03cpu/x86/smm: Use struct region to check overlapping sectionsArthur Heymans
This allows for some runtime checks on all SMM elements and removes the need for manual checks. We can drop completely separate codepaths on SMM_TSEG & SMM_ASEG as the only difference is where permanent handler gets placed. TESTED on prodrive/hermes and qemu with SSM_ASEG with 4 cores & SMM_TSEG with 128 cores. This code figured out quite some problems with overlapping regions so I think this is the right approach. Change-Id: Ib7e2e3ae16c223ecfd8d5bce6ff6c17c53496925 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63602 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2022-06-03cpu/x86/smm_module_loader: Update loggingArthur Heymans
Some logging is superfluous and logging that code is being copied is 'SPEW' level. Change-Id: I84d49a394cc53d78f1e1d3936502ac16810daf9f Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63481 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-06-02cpu/x86/mp_init.c: Prolong delay on synchronous APIArthur Heymans
When each AP needs to do a lot of printing 1 sec is not enough. Change-Id: I00f0a49bf60f3915547924c34a62dd0044b0c918 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64828 Reviewed-by: Subrata Banik <subratabanik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
2022-06-02cpu/x86/smm_module_loader: Drop superfluous checksArthur Heymans
Checking if the stack encroaches on the entry points is done in other parts of the code. Change-Id: I275d5dda9c69cc89608450ae27dd5dbd581e3595 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63480 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2022-06-01Revert "cpu/x86/mtrr: Make useful MTRR functions available for all boot stages"Arthur Heymans
This code is only meant to be used in early stages so move it back to earlymtrr.c. This reverts commit 3ad00d0c89c9e7a8e9ef13b6dc65bb338a191ec8. Change-Id: I9bc1ac4b863eb43d3e398e6462ee139a7751bf62 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64804 Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-06-01Revert "cpu/x86: Add function to set `put_back_original_solution` variable"Arthur Heymans
Now that mtrr_use_temp_range() can deal with multiple ranges there is no need to expose this to restore the MTRR solution. This reverts commit 00aaffaf470adfbaa0fbfa0ec3cc67311763810b. Change-Id: Ib77a0f52228cd2f19f3227824f704ac690be4aba Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64803 Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-06-01cpu/x86/mtrr: Allow for multiple TEMP MTRR rangesArthur Heymans
Temporary MTRR setup usually covers the memory mapped flash. On recent Intel hardware the mapping is not coherent. It uses an external window for parts of the BIOS region that exceed 16M. This now allows up to 10 temporary memory ranges. TESTED: Qemu with multiple MTRR temporary MTRR ranges sets up a valid and optimized temporary MTRR solution. Change-Id: I23442bd2ab7602e4c5cbd37d187a31413cf27ecc Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63555 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Subrata Banik <subratabanik@google.com>
2022-05-31cpu/x86/smm_module_load: Fix SMM stub paramsKyösti Mälkki
There is NULL dereference in adjust_apic_id_map() and updating apic_id_to_cpu[] array within SMM stub fails. Initial apic_id_to_cpu[] array may have worked for platforms where APIC IDs are consecutive. Change-Id: Ie59a731bfc883f8a47048b2ceacc66f44aa5b68c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64798 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Uwe Poeche <uwe.poeche@siemens.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com> Reviewed-by: Sean Rhodes <sean@starlabs.systems> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-05-29cpu/x86: Allow SoC to select the LAPIC access modeSubrata Banik
Intel Meteor Lake SoC expects to select x2APIC for accessing LAPIC hence, this patch provides an option where SoC code choose the correct LAPIC access mode using choice selection. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I39c99ba13ad6e489c300bd0d4ef7274feeca9d4f Reviewed-on: https://review.coreboot.org/c/coreboot/+/64647 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-05-28cpu/x86/mp_init.c: Drop 'real' vs 'used' save stateArthur Heymans
Now that the save state size is handled properly inside the smm_loader there is no reason to make that distinction in the mp_init code anymore. Change-Id: Ia0002a33b6d0f792d8d78cf625fd7e830e3e50fc Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63479 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@tutanota.com>
2022-05-28cpu/x86/smm_module_load: Rewrite setup_stubArthur Heymans
This code was hard to read as it did too much and had a lot of state to keep track of. It also looks like the staggered entry points were first copied and only later the parameters of the first stub were filled in. This means that only the BSP stub is actually jumping to the permanent smihandler. On the APs the stub would jump to wherever c_handler happens to point to, which is likely 0. This effectively means that on APs it's likely easy to have arbitrary code execution in SMM which is a security problem. Change-Id: I42ef9d6a30f3039f25e2cde975086a1365ca4182 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63478 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@tutanota.com>
2022-05-28cpu/x86/smm_module_loader: Add a convenient ss_topArthur Heymans
We don't want to keep track of the real smm size all the time. As a bonus now ss_start is now really the start of the save state instead of top - MAX(stub_size, save state size). Change-Id: I0981022e6c0df110d4a342ff06b1a3332911e2b7 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63477 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@tutanota.com>
2022-05-28cpu/x86/smm_module_loader.c: Rewrite setupArthur Heymans
This code is much easier to read if one does not have to keep track of mutable variables. This also fixes the alignment code on the TSEG smihandler setup code. It was aligning the code upwards instead of downwards which would cause it to encroach a part of the save state. Change-Id: I310a232ced2ab15064bff99a39a26f745239f6b9 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63475 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Martin L Roth <gaumless@tutanota.com>
2022-05-28cpu/x86/smm: Drop 'entry' struct elementArthur Heymans
This is a duplicate of code_start. Change-Id: I38e8905e3ed940fb34280c939d6f2f1fce8480a7 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63476 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2022-05-28cpu/x86/smm: Refactor creating a stub/save state mapArthur Heymans
This code was very hard to read so rewrite it using as few mutable local variables as possible. Tested on qemu with 128 cores. Change-Id: I7a455ba45a1c92533a8ecfd1aeecf34b4a63e409 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63474 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@tutanota.com>
2022-05-23cpu/x86/smm: Remove heapArthur Heymans
Currently no smihandler uses heap. coreboot's heap manager also is quite limited in what it will free (only the latest alloc). This makes it a bad idea to use it inside the smihandler, as depending on the alloc usage the heap might actually be full at some point, breaking the smihandler. This also reduces the ramstage by 448 bytes on google/vilboz. Change-Id: I70cd822be17c1efe13c94a9dbd2e1038808b9c56 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64521 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Nico Huber <nico.h@gmx.de>
2022-05-16arch/x86/postcar: Set up postcar MTRR in C codeArthur Heymans
Setting up postcar MTRRs is done when invd is already called so there is no reason to do this in assembly anymore. This also drops the custom code for Quark to set up MTRRs. TESTED on foxconn/g41m and hermes/prodrive that MTRR are properly set in postcar & ramstage. Change-Id: I5ec10e84118197a04de0a5194336ef8bb049bba4 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/54299 Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-05-16cpu/x86/mp_init.c: Add mp_run_on_all_cpus_synchronouslyKane Chen
MTRR is a core level register which means 2 threads in one core share same MTRR. There is a race condition could happen that AP overrides BSP MTRR unintentionally. In order to prevent such race condition between BSP and APs, this patch provides a function to let BSP assign tasks to all APs and wait them to complete the assigned tasks. BUG=b:225766934 Change-Id: I8d1d49bca410c821a3ad0347548afc42eb860594 Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com> Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63566 Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-04-25cpu/x86/64bit: Generate static page tables from an assembly fileArthur Heymans
This removes the need for a tool to generate simple identity pages. Future patches will link this page table directly into the stages on some platforms so having an assembly file makes a lot of sense. This also optimizes the size of the page of each 4K page by placing the PDPE_table below the PDE. Change-Id: Ia1e31b701a2584268c85d327bf139953213899e3 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63725 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2022-04-25cpu/x86/64bit: Add a separate Makefile.incArthur Heymans
Follow-up patches will add more to this makefile. Change-Id: I8da6265b4c810e39a67f5ec27e26eeb26e3679a4 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63758 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
2022-04-24{arch,cpu}: Remove redundant <arch/cpu.h>Elyes HAOUAS
<arch/cpu.h> is chain included through <cpu/cpu.h>. Change-Id: I54a837394f67ac2a759907c7212ab947d07338dc Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/60931 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <martinroth@google.com>
2022-04-21cpu/x86/fpu_enable.inc: Remove file used by romccArthur Heymans
Change-Id: I530bb217bb9a944990232dcf4e08f160b5267512 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55008 Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-04-19cpu/x86/Kconfig*: Guard with ARCH_X86Arthur Heymans
None of these options make sense on different ARCH. Change-Id: Ie90ad24ff9013e38c42f10285cc3b546a3cc0571 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63673 Reviewed-by: Felix Singer <felixsinger@posteo.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-04-14x86/mtrr: Print address ranges inclusive to be more consistentWerner Zeh
The printed address ranges in the tree (resource allocator and even some MTRR code) usually shows the range inclusive (meaning from start address to the real end address of the range). Though there is still some code in the MTRR context which prints the ranges with an exclusive end. This patch aligns the printing of ranges in the MTRR code to be consistent among the tree so that the shown end addresses are now inclusive. Change-Id: I0ca292f9cf272564cb5ef1c4ea38f5c483605c94 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63541 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Christian Walter <christian.walter@9elements.com>
2022-04-13cpu/x86/mtrr: Use `need_restore_mtrr` to set put_back_original_solutionSubrata Banik
This patch calls into need_restore_mtrr() from the mtrr_use_temp_range function to set `put_back_original_solution` to discard any temporary MTRR range prior to boot to payload. BUG=b:225766934 TEST=Able to build and boot google/brya to verify that `remove_temp_solution()` is able to discard any temporary MTRR range before booting to payload. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I2e00ec593847e1eb173d5ac77b15b50342860f89 Reviewed-on: https://review.coreboot.org/c/coreboot/+/63491 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2022-04-13cpu/x86: Add function to set `put_back_original_solution` variableKane Chen
`put_back_original_solution` variable in mtrr.c is static, but there is a need to set put_back_original_solution outside of mtrr.c in order to let `remove_temp_solution` to drop any temporary MTRRs being set outside `mtrr_use_temp_range()`, for example: `set_var_mtrr()` function is used to set MTRRs for the ROM caching. BUG=b:225766934 TEST=Able to build and boot google/redrix. Change-Id: Ic6b5683b2aa7398a5e141f710394ab772e9775e7 Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com> Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63485 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2022-04-11cpu/x86/smm: Add sinkhole mitigation to relocatable smmstubArthur Heymans
The sinkhole exploit exists in placing the lapic base such that it messes with GDT. This can be mitigated by checking the lapic MSR against the current program counter. Change-Id: I49927c4f4218552b732bac8aae551d845ad7f079 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37289 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-04-11cpu/x86/smm_module_loader.c: Clean up printing the CPU mapArthur Heymans
There is no reason to do this in a separate loop. Change-Id: I7fe9f1004597602147aae72f4b754395b6b527cf Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63473 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-04-02cpu/x86/mtrr: Delay removing `temp` variable range MTRR snapshotSubrata Banik
This patch delays removing `temporary` MTRR snapshots to avoid conflicts with other operations attached with same `BS_PAYLOAD_BOOT/BS_ON_EXIT` boot state. BUG=b:225766934 TEST=Having variable MTRR snapshot using display_mtrrs() is able to list only the permanent MTRRs and all temporary MTRRs are removed prior to boot to payload. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I602dca989745159d013d6573191861b296f5d3ab Reviewed-on: https://review.coreboot.org/c/coreboot/+/63220 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-04-02{cpu/x86, drivers/amd}: Use `get_var_mtrr_count()` to get MTRR countSubrata Banik
This patch replaces the implementation that is used to get the number of variable MTRRs with `get_var_mtrr_count()` function. BUG=b:225766934 TEST=Able to build and boot google/redrix board to ChromeOS. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I4751add9c45374e60b7a425df87d06f52e6fcb8c Reviewed-on: https://review.coreboot.org/c/coreboot/+/63219 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-04-02cpu/x86/mtrr: Make useful MTRR functions available for all boot stagesSubrata Banik
This patch migrates a few useful MTRR functions as below from `earlymtrr.c` file to newly created common stage file `mtrrlib.c`. 1. get_free_var_mtrr 2. set_var_mtrr 3. clear_all_var_mtrr These functions can be used to perform the MTRR programming from IA common code SPI driver as `fast_spi.c` without requiring two separate implementations for early boot stage (till romstage) and for ramstage onwards. BUG=b:225766934 TEST=Able to build and boot google/redrix board to ChromeOS. Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I2c62a04a36d3169545c3128b4231992ad9b3699d Reviewed-on: https://review.coreboot.org/c/coreboot/+/63218 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-03-10cpu/x86/smm: Add weak SoC init and exit methodsRaul E Rangel
This change provides hooks for the SoC so it can perform any initialization and cleanup in the SMM handler. For example, if we have a UART enabled firmware with DEBUG_SMI, the UART controller could have been powered off by the OS. In this case we need to power on the UART when entering SMM, and then power it off before we exit. If the OS had the UART enabled when entering SMM, we should snapshot the UART register state, and restore it on exit. Otherwise we risk clearing some interrupt enable bits. BUG=b:221231786, b:217968734 TEST=Build test guybrush Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: I946619cd62a974a98c575a92943b43ea639fc329 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62500 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
2022-03-09cpu/x86/smm,lib/cbmem_console: Enable CBMEMC when using DEBUG_SMIRaul E Rangel
This change will allow the SMI handler to write to the cbmem console buffer. Normally SMIs can only be debugged using some kind of serial port (UART). By storing the SMI logs into cbmem we can debug SMIs using `cbmem -1`. Now that these logs are available to the OS we could also verify there were no errors in the SMI handler. Since SMM can write to all of DRAM, we can't trust any pointers provided by cbmem after the OS has booted. For this reason we store the cbmem console pointer as part of the SMM runtime parameters. The cbmem console is implemented as a circular buffer so it will never write outside of this area. BUG=b:221231786 TEST=Boot non-serial FW with DEBUG_SMI and verified SMI messages are visible when running `cbmem -1`. Perform a suspend/resume cycle and verify new SMI events are written to the cbmem console log. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Ia1e310a12ca2f54210ccfaee58807cb808cfff79 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62355 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
2022-02-28cpu/x86/smm: Support PARALLEL_MP with SMM_ASEGArthur Heymans
This will allow to migrate all platform to the parallel_mp init code and drop the old lapic_init code. Change-Id: If499e21a8dc7fca18bd5990f833170d0fc21e10c Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58700 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-02-11cpu/x86/lapic: Fix SMP=n case with LEGACY_SMP_INITKyösti Mälkki
Fix regression after commit 9ec7227c9b cpu/x86/lapic: Move LAPIC configuration to MP init The call to disable_lapic() got removed and with asus/p2b SeaBIOS payload was unable to load kernel. The combination of entering SeaBIOS payload with an enabled lapic but not having programmed LAPIC_LVT0 for DELIVERY_MODE_EXTINT apparently disconnects i8259 PIC interrupt delivery pin. Change-Id: If51e5d65153a02ac7af191e7897c04bd4e298006 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/61793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
2022-02-10Revert "cpu/x86/lapic: Unconditionally use CPUID leaf 0xb if available"Felix Held
This reverts commit ceaf959678905f44a54a116f37bd15acab5d4608. The AMD Picasso SoC doesn't support x2APIC and neither advertises the presence of its support via bit 21 in EAX of CPUID leaf 1 nor has the bit 10 in the APIC base address MSR 0x1b set, but it does have 0xd CPUID leaves, so just checking for the presence of that CPUID leaf isn't sufficient to be sure that EDX of the CPUID leaf 0xb will contain a valid APIC ID. In the case of Picasso EDX of the CPUID leaf 0xb returns 0 for all cores which causes coreboot to get stuck somewhere at the end of MP init. I'm not 100% sure if we should additionally check bit 21 in EAX of CPUID function 1 is set instead of adding back the is_x2apic_mode check. TEST=Mandolin with a Picasso SoC boots again. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: If1e3c55ce2d048b14c08e06bb79810179a87993d Reviewed-on: https://review.coreboot.org/c/coreboot/+/61776 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Christian Walter <christian.walter@9elements.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2022-02-07treewide: Remove "ERROR: "/"WARN: " prefixes from log messagesJulius Werner
Now that the console system itself will clearly differentiate loglevels, it is no longer necessary to explicitly add "ERROR: " in front of every BIOS_ERR message to help it stand out more (and allow automated tooling to grep for it). Removing all these extra .rodata characters should save us a nice little amount of binary size. This patch was created by running find src/ -type f -exec perl -0777 -pi -e 's/printk\(\s*BIOS_ERR,\s*"ERROR: /printk\(BIOS_ERR, "/gi' '{}' ';' and doing some cursory review/cleanup on the result. Then doing the same thing for BIOS_WARN with 's/printk\(\s*BIOS_WARNING,\s*"WARN(ING)?: /printk\(BIOS_WARNING, "/gi' Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I3d0573acb23d2df53db6813cb1a5fc31b5357db8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61309 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Lance Zhao Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
2022-02-07cpu/x86/Makefile.inc: Build smi_trigger on !HAVE_SMI_HANDLERArthur Heymans
A lot of soc code requires a definition of apm_control, which smm/smi_trigger.c provided for !HAVE_SMI_HANDLER, but is not added as a build target. Fixes building Q35 without smihandler. Change-Id: Ie57819b3d169311371a1caca83c9b0c796b46048 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/59913 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2022-02-07cpu/x86/mp_init.c: Rename num_concurrent_stacksArthur Heymans
This is just the amount of cpus so rename it for simplicity. Change-Id: Ib2156136894eeda4a29e8e694480abe06da62959 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58699 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-02-07cpu/x86/smm: Improve smm stack setupArthur Heymans
Both the relocation handler and the permanent handler use the same stacks, so things can be simplified. Change-Id: I7bdca775550e8280757a6c5a5150a0d638d5fc2d Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58698 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2022-02-05cpu/x86/lapic: Move LAPIC configuration to MP initKyösti Mälkki
Implementation for setup_lapic() did two things -- call enable_lapic() and virtual_wire_mode_init(). In PARALLEL_MP case enable_lapic() was redundant as it was already executed prior to initialize_cpu() call. For the !PARALLEL_MP case enable_lapic() is added to AP CPUs. Change-Id: I5caf94315776a499e9cf8f007251b61f51292dc5 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58387 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-02-05cpu/x86/lapic: Add lapic_send_ipi_self,others()Kyösti Mälkki
This avoids unnecessary passing of APIC ID parameter and allows some minor optimisation for X2APIC mode. Change-Id: I0b0c8c39ecd13858cffc91cc781bea52decf67c5 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/60713 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-02-05cpu/x86/lapic: Support switching to X2APIC modeKyösti Mälkki
The options X2APIC_ONLY and X2APIC_RUNTIME were already user-visible choices in menuconfig, but the functionality was not actually provided except for platforms where FSP presumably enabled X2APIC. Add the logic and related logging for switching to X2APIC operation. TEST: qemu-system-x86_64 -M Q35 -accel kvm -bios coreboot.rom -serial stdio -smp 2 PARALLEL_MP, and either X2APIC_ONLY or X2APIC_RUNTIME, need to be selected for the build of emulation/qemu-q35. Change-Id: I19a990ba287d21ccddaa64601923f1c4830e95e9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55262 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
2022-02-05cpu/x86/lapic: Unconditionally use CPUID leaf 0xb if availableKyösti Mälkki
Even when we're not in X2APIC mode, the information in CPUID leaf 0xb will be valid if that leaf is implemented on the CPU. Change-Id: I0f1f46fe5091ebeab6dfb4c7e151150cf495d0cb Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58386 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com>