This removes the runtime SMI call to set up the communication buffer
for SMMSTORE in favor of setting this buffer up during the installation
of the smihandler.
The reason is that it's less code in the handler and a time costly SMI
is also avoided in ramstage.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I94dce77711f37f87033530f5ae48cb850a39341b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79738
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Currently the SRAT table only exposes one proximity group as
it uses the LAPIC node_id, which is always initialized to 0.
Use CPUID leaf 0x1f or 0xb to gather the node ID and fill it
to make sure that at least one proximity group for every socket
is advertised.
For now the SNC config isn't taken into account.
Change-Id: Ia3ed1e5923aa18ca7619b32cde491fdb4da0fa0d
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81515
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
With SMM holding page tables itself, we can consider SMM support stable
and safe enough for general use.
Also update the respective documentation.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: Ifcf0a1a5097a2d7c064bb709ec0b09ebee13a47d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80338
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
When switching back and forth between 32 to 64 bit mode, for example to
call a 32-bits FSP or to call the payload, new page tables in the
respective stage will be linked.
The advantages of this approach are:
- No need to determine a good place for page tables in CBFS that does
not overlap.
- Works with non memory mapped flash (however all coreboot targets
currently do support this)
- If later stages can use their own page tables which fits better with
the vboot RO/RW flow
A disadvantage is that it increases the stage size. This could be
improved upon by using 1G pages and generating the pages at runtime.
Note: qemu cannot have the page tables in the RO boot medium and needs
to relocate them at runtime. This is why keeping the existing code with
page tables in CBFS is done for now.
TEST: Booted to payload on google/vilbox and qemu/q35
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: Ied54b66b930187cba5fbc578a81ed5859a616562
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80337
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This data is used by smm_region_overlaps_handler(). Callers use this
helper to determine if it's safe to read/write to memory buffers taken
from untrusted input.
coreboot SMI handlers must not be confused into writing over any SMRAM
subregion, which includes the TSEG_STAGE_CACHE and chipset-specific area
(sometimes, IED), not just the handlers.
If stage cache writes were permitted, this could compromise the
integrity of the S3 resume path.
The consequences to overwriting the chipset-specific area are undefined.
Change-Id: Ibd9ed34fcfd77a4236b5cf122747a6718ce9c91f
Signed-off-by: Benjamin Doron <benjamin.doron@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80703
Reviewed-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
The commit below uses USE_1G_PAGETABLES config flag instead of
the correct USE_1G_PAGES_TLB.
"commit ecbc243a45
("cpu/x86: Add 1GiB pages for memory access up to 512GiB")"
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: Ic19812bc1f90cbe7d3739c42a0314b3650e0501d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81343
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Improves user experience by highlighting a possibility of runtime
hangs caused by unsupported WB caching during NEM.
Recently we have encountered an issue on Intel platform and came to
know about the NEM logical limitation where due to cache sets are not
in power_on_two running into a runtime hang upon enabling WB caching.
BUG=b:306677879
BRANCH=firmware-rex-15709.B
TEST=Verified boot on google/ovis and google/rex (including Ovis with
non-power-of-two cache configuration).
Change-Id: Ic4fbef1fcc018856420428139683897634c9f85d
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81336
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Relying on page tables being in RO flash is not safe in every setup,
therefore set up some page tables in SMRAM that the permanent smihandler
can use.
Tested on QEMU.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: Icb3086abd577b9abb9966dd910a264a873ace4ed
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80336
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Benjamin Doron <benjamin.doron00@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
To allow for more flexibility like generating page tables at runtime or
page tables that are part of the ramstage, add a parameter to
sipi_vector.S and smm_stub.S so that APs use the same page tables as the
BSP during their initialization.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I1250ea6f63c65228178ee66e06d988dadfcc2a37
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80335
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
No rmodule was using heap.
Change-Id: I0bc049a5231dabbec1c962a99ef875eddcc4ac6e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80733
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This makes it easier to reuse, e.g. if you want to do it twice in one
assembly file.
Change-Id: Ida861338004187e4e714be41e17c8447fa4cf935
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79261
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Although entry64.inc does guard against ENV_X86_64, it's more aesthetic
to have it with the other 64bit code below a guard just like other
platforms.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: If3ef19dd6654cd2fa0be3c68dee4a472e7a7935d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80354
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Current pagetable implementation allows memory access up to 4GiB using
2MiB pages. If user wants to access more than 4GiB with a 2MiB page it
will require more pagetable entries. By using a 1GiB page table, users
can access more than 4GiB of memory while reducing the number of
pagetable entries. This patch enables memory access up to 512GiB through
1GiB pages by selecting USE_1G_PAGES_TLB in Kconfig.
TEST: Verified in 64bit mode boot and access above 4GiB
Change-Id: Id569ae5b50abf5b72e4db33b5e4cd802399e76ec
Signed-off-by: Ashish Kumar Mishra <ashish.k.mishra@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80088
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
When a device with no resource is passed it will keep overwriting
the current slot. Remove the conditional and allow a PCI device
to not have any resources.
This is particular useful for the next commits that makes use
of the PCI resource store to pass UBOX devices to SMM that allow
to lock-down SMM from within an SMI handler. Those devices do
not have any resources and cannot be hardcoded in SMM as their
PCI segment group and bus number varies depending on socket
count, CPU discovery and configuration.
Change-Id: I1a1b5944c97da5be6b9794c653b5159683f492e5
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80246
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Allow SMM to verify the list of provided PCI devices by comparing
the device and vendor ID for each PCI device.
Change-Id: I7086fa450fcb117ef8767c199c30462c1ab1e1b6
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80245
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This renames bus to upstream and link_list to downstream.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Macros can be confusing on their own; hiding commas make things worse.
This can sometimes be downright misleading. A "good" example would be
the code in soc/intel/xeon_sp/spr/chip.c:
CHIP_NAME("Intel SapphireRapids-SP").enable_dev = chip_enable_dev,
This appears as CHIP_NAME() being some struct when in fact these are
defining 2 separate members of the same struct.
It was decided to remove this macro altogether, as it does not do
anything special and incurs a maintenance burden.
Change-Id: Iaed6dfb144bddcf5c43634b0c955c19afce388f0
Signed-off-by: Nicholas Sudsgaard <devel+coreboot@nsudsgaard.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80239
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Jakub Czapiga <czapiga@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
The .inc suffix is confusing to various tools as it's not specific to
Makefiles. This means that editors don't recognize the files, and don't
open them with highlighting and any other specific editor functionality.
This issue is also seen in the release notes generation script where
Makefiles get renamed before running cloc.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I552d487978906f5ea74c3d0d85373fe5b2de3f38
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80068
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
This reverts commit acbc491237.
Reason for revert: CB:79525 fixes the issue that led to the revert
by not maintaining the heap in the SMM-stored copy of ramstage at all.
Change-Id: I3c8ef785486d275c9341859d34fce12253bd2bb9
Signed-off-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80023
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Always use the high-level API region_offset() and region_sz()
functions. This excludes the internal `region.c` code as well
as unit tests. FIT payload support was also skipped, as it
seems it never tried to use the API and would need a bigger
overhaul.
Change-Id: Iaae116a1ab2da3b2ea2a5ebcd0c300b238582834
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79904
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Use call_smm instead of writing the command number directly to the APMC
SMI command IO port.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Iefbdb3d17932d6db6a17b5771436ede220c714fb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79828
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Even though the return value from apm_control isn't checked at any of
its call sites, using the cb_err enum instead of an integer as return
type makes it clearer what the returned value means.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I07ced74cae915df52a9d439835b84237d51fdd11
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79835
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Instead of hard-coding the APMC SMI command IO port in the FADT, call
pm_acpi_smi_cmd_port() to get the APMC SMI command IO port. Also update
the comment in apm_get_apmc to match what it's doing.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0f36b8a0e93a82b8c6d23c5c5d8fbebb1bc6b0bc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79567
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Add a protected mode wrapper function that takes three arguments.
This is already supported by the called assembly code.
Change-Id: Ia8c91eebae17e4ca27e391454c2d130a71c4c9f3
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79756
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Enable x86_64 support for MRC.bin:
- Add a wrapper function for console printing that calls into
long mode to call native do_putchar
- Remove Kconfig guard for x86_64 when MRC is being used
Tested: Booted Lenovo X220 using mrc.bin under x86_64 and
MRC is able to print to the console.
Change-Id: I21ffcb5f5d4bf155593e8111531bdf0ed7071dfc
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79754
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Add another mode_switch assembly function to call x86_64 code from
x86_32 code. This is particullary useful for BLOBs like mrc.bin or
FSP that calls back into coreboot.
The user must first wrap all functions that are to be called from
x86_32 using the macro prot2lm_wrapper. Instead of using the original
function the wrapped functions must be passed to the x86_32 BLOBs.
The assembly code assume that 0-3 32bit arguments are passed to
the wrapped function.
Tested:
- Called x86_64 code from x86_32 code in qemu.
- Booted Lenovo X220 using x86_32 MRC using x86_64 console.
Change-Id: Ib625233e5f673eae9f3dcb2d03004c06bb07b149
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79753
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Drop the first argument specifying the number of arguments pushed
to the stack. Instead always push the 3 arguments to stack and use
the first one as function pointer to call while in protected mode.
While on it add more comments and simplify register restore code.
Tested:
- On qemu can call x86_32 function and pass argument and return
value.
- Booted Lenovo X220 in x86_64 mode using x86_32 MRC.
Change-Id: I30809453a1800ba3c0df60acd7eca778841c520f
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79752
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Use existing macro instead of open coding magic numbers.
No functionality change.
Change-Id: If45f7f3f2b4226cedde6ff91b9848b9875f45f9f
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79148
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Instead of using MSR IA32_PLATFORM_ID read the SystemAgent device id
to figure out the PC type. This follows the BWG which suggest to not
use MSR IA32_PLATFORM_ID for system identification.
Tested: Lenovo X220 still boots.
Change-Id: Ibddf6c75d15ca7a99758c377ed956d483abe7ec1
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78826
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Now that those registers are only written once set the lock bit to
protect it from runtime changes.
TEST: Lenovo X220 still boots.
Change-Id: I4c56a3cb322a0e75eb3dd366808068093928e10c
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78608
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Write MSRs that are in scope package only once by checking for the BSP
bit. While this improves performance a bit it also has the benefit
that registers can be safely locked down without the need for
semaphores.
TEST: Lenovo X220 still boots.
Change-Id: I43f5d62d782466d2796c1df6015d43c0fbf9d031
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78607
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Report smbios_cpu_get_voltage() on Sandy Bridge as well.
Change-Id: I13ea930a58eaedc24d69fa3790f1f2a151558a80
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78432
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
When the SMI transfer monitor (STM) is configured, get_save_state
returns an incorrect pointer to the cpu save state because the size
(rounded up to 0x100) of the processor System Management Mode (SMM)
descriptor needs to be subtracted out in this case.
This patch addresses the issue identified in CB:76601, which means
that SMMSTOREv2 now works with the STM.
Thanks to Jeremy Compostella for suggesting this version of the patch.
Resolves: https://ticket.coreboot.org/issues/511
Change-Id: I0233c6d13bdffb3853845ac6ef25c066deaab747
Signed-off-by: Eugene D. Myers <edmyers@cyberpackventures.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78889
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Having a separate romstage is only desirable:
- with advanced setups like vboot or normal/fallback
- boot medium is slow at startup (some ARM SOCs)
- bootblock is limited in size (Intel APL 32K)
When this is not the case there is no need for the extra complexity
that romstage brings. Including the romstage sources inside the
bootblock substantially reduces the total code footprint. Often the
resulting code is 10-20k smaller.
This is controlled via a Kconfig option.
TESTED: works on qemu x86, arm and aarch64 with and without VBOOT.
Change-Id: Id68390edc1ba228b121cca89b80c64a92553e284
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55068
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This reverts commit 44a48ce7a4.
Reason for revert: It breaks wakeup from suspend on a bunch of boards.
While this approach of eyeballing "correct" values by chipset _should_
be fixed, it should also be accompanied by compile time verification
that the memory map works out.
Since nobody seems to care enough, let's just revert this, instead of
keeping the tree broken for a bunch of configurations.
Change-Id: I3cd73b6ce8b15f06d3480a03ab472dcd444d7ccc
Signed-off-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78850
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Subrata Banik <subratabanik@google.com>
According the Intel Software Developer Manual,
CPUID.80000008H:EAX[15:8] reports the physical-address width supported
by the processor. Unfortunately, it does not necessarily reflect the
physical-address space the system can actulally use as some of those
bits can be reserved for internal hardware use.
It is critical for coreboot to know the actual physical address size.
Overestimating this size can lead to device resource overlaps due to
the hardware ignoring upper reserved bits. On rex for instance, it
creates some reboot hangs due to an overlap between thunderbolt and
Input Output Manager (IOM) address space.
As some SoCs, such as Meteor Lake, have physical address reserved bits
which cannot be probed at runtime, this commit introduces
`CPU_INTEL_COMMON_RESERVED_PHYS_ADDR_BITS' Kconfig to set the number
of physical address reserved bits at compilation time for those SoCs.
A runtime detection by hardware probing will be attempted if the value
is 0 (default).
BUG=b:288978352
Change-Id: I8748fa3e5bdfd339e973d562c5a201d5616f813e
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78451
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Having a CBFS cache scratchpad offers a generic way to decompress CBFS
files through the cbfs_map() function without having to reserve a
per-file specific memory region.
This commit introduces the x86 `PRERAM_CBFS_CACHE_SIZE' Kconfig to set
the pre-memory stages CBFS cache size. A cache size of zero disables
the CBFS cache feature. The default value is 16 KB which seems a
reasonable minimal value enough to satisfy basic needs such as the
decompression of a small configuration file. This setting can be
adjusted depending on the platform needs and capabilities.
We have set this size to zero for all the platforms without enough
space in Cache-As-RAM to accommodate the default size.
TEST=Decompression of vbt.bin in romstage on rex using cbfs_map()
Change-Id: Iee493f9947fddcc57576f04c3d6a2d58c7368e09
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77290
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
We have a tiny HEAP_SIZE by default, except when we don't, and
mainboards that override it, or not.
Since memory isn't exactly at a premium these days, and unused heap
doesn't cost anything extra, just crank it up to the highest value
we have in the tree by default and remove all overrides.
Change-Id: I918a6c58c02496e8074e5fba06e38d9cfd691020
Signed-off-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78270
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
When advertising C-state using the ACPI _CST object, make sure
to only advertise those that are supported by the CPU.
Downgrade if it's not and make sure to not advertise duplicate
states.
Add debug prints for the finally selected mapping of ACPI
C-state vs Intel CPU C-state.
Test: Tested on Lenovo X220.
All C-states are still advertised as all are supported.
Change-Id: Iaaee050e0ce3c29c12e97f5819a29f485a7946c2
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78194
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Make the code look like on newer platforms. This doesn't change
functionality.
Test: Lenovo X220 still boots and advertises all C-states as
before.
Change-Id: Ie7076d11720d55a4ac11318cbbdab9f75d08e15e
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78193
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
According to the BWG C-states are processor specific
and BIOS must check if a C-state is supported at all.
Print the supported C-states in before ACPI _CNT generation.
Test: Tested on Lenovo X220 using Intel i5-2540M.
All C-states are reported as supported.
Change-Id: I713712a1a104714cbf3091782e564e7e784cf21d
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78133
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This fixes building lenovo/x200 with VBOOT.
All supported CPUs have enough L2 cache to support this.
Change-Id: Ifd6a16ce36c86349955cd7b7ddb3f74a19c17c4d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71905
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Since also some AMD CPUs have reserved physical address bits that can't
be used as normal address bits, introduce the
RESERVED_PHYSICAL_ADDRESS_BITS_SUPPORT Kconfig option which gets
selected by CPU_INTEL_COMMON, and use the new common option to configure
if the specific SoC/CPU code implements get_reserved_phys_addr_bits or
if the default of this returning 0 is used instead.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0059e63a160e60ddee280635bba72d363deca7f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78073
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
The number of physical address bits and reserved address bits shouldn't
ever be negative, so change the return type of cpu_phys_address_size,
get_reserved_phys_addr_bits, and get_tme_keyid_bits from int to unsigned
int.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9e67db6bf0c38f743b50e7273449cc028de13a8c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78072
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Change the name of msr_a and msr_m to the more descriptive msr_base and
msr_mask.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I6e0010f6d35ccf4288f4e0df8f51ea5f17c98b0f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78007
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
