The %fs and %gs segment are typically used to implement thread local
storage or cpu local storage. We don't currently use these in coreboot,
so there is no reason to map them. By setting the segment index to 0,
it disables the segment. If an instruction tries to read from one of
these segments an exception will be raised.
The end goal is to make cpu_info() use the %gs segment. This will remove
the stack alignment requirements and fix smm_do_relocation.
BUG=b:194391185, b:179699789
TEST=Boot guybrush to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Iaa376e562acc6bd1dfffb7a23bdec82aa474c1d5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57860
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Peers <epeers@google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
The voltage rail discharge times have been measured, so therefore
the boot time on a cold boot when the CSE must go through a global reset
and thus a trip to S5 can be optimized. Select the lowest applicable
value for each PchPmSlp UPD that can be used with these measurements.
This is programmed in the baseboard because the measured discharge times
leave (what should be) plenty of margin for variants to also not violate
any power sequencing guidelines from the PDG.
BUG=b:184799383
TEST=verified time in S5 during a global reset is ~1s instead of 4s
Change-Id: Ia373c47b3967d68ddac21707c6eb4565d9d6519e
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57892
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
NVMe needs extra time to run boot process, enable power and deassert
reset for NVMe earlier in the boot flow that taeko can successfully
boot into OS with non-serial coreboot.
BUG=b:199969366 & b:200711149
TEST=Build FW and test with non-serial FW reboot 20 times pass.
Signed-off-by: Kevin Chang <kevin.chang@lcfc.corp-partner.google.com>
Change-Id: I032c5b90fb2148c4075d6ead3e4161c0cc659b20
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57659
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Currently, static analyzers don't recognize that hlt() doesn't return,
so they show errors like uninitialized variables assuming that it does
return. This takes care of that problem.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Ia2325700b10fe1f89d749edfe5aee72b47d02f2e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56978
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
The current MRC binaries for Bay Trail are always ELF files. Always
adjust the position in CBFS using the ELF header regardless of file
names. Without adjusting the position, the system hangs right after
calling into MRC.
TEST: MRC position in CBFS does not change for bostentech/gbyt4.
Change-Id: I74e1246a5fac3f3649be9842ff13c2fc70f72a20
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57989
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Refactor DPTF section of code under the kracko overridetree. This makes kracko override dptf section of dedede/baseboard, because the DPTF tool's CRT, PSV and TSR3 settings are different than expected.
BUG=b:187482019
BRANCH=dedede
TEST=Built and tested on dedede system
Change-Id: Iacc543f961a7f4652ee8583920b1794f916c7ec9
Signed-off-by: Robert Chen <robert.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57828
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This file does not exist in the coreboot tree. One should place this
file in the `site-local` subdirectory and specify the paths by means
of `site-local/Kconfig`.
Change-Id: I86ac2a6176947f12194bec6b63bedd7db79820a0
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54761
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
This will help reduce duplication and make it easier to add new members
to the cpu_info struct.
BUG=b:194391185, b:179699789
TEST=Compare assembly of romstage and ramstage before and after
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I31f264f4bb8b605fa3cb3bfff0d9bf79224072aa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57859
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Enable CCP DMA use in PSP verstage. This helps to reduce the boot time.
BUG=b:194990811
TEST=Build and boot to OS in Guybrush. Observed a 35 - 40 ms improvement
in the boot time.
Before CCP DMA:
508:finished loading body 898,286 (287,576)
Total Time: 2,146,182
After CCP DMA:
508:finished loading body 853,627 (240,061)
Total Time: 2,110,117
Cq-Depend: chrome-internal:4116566
Change-Id: I6e4f081622a2ec78763adf56548204efc1bccf39
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57564
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
PSP verstage can access the boot device either in Programmed I/O mode or
DMA mode. Introduce a boot device driver and use the appropriate mode
based on the SoC support.
BUG=b:194990811
TEST=Build and boot to OS in Guybrush.
Change-Id: I8ca5290156199548916852e48f4e11de7cb886fb
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57563
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add support to access the boot device from PSP through Crypto
Co-Processor (CCP) DMA. Implement a SVC call to use CCP DMA on SoCs
where it is supported and a stub on SoCs where it is not supported. This
provides an improved performance while accessing the boot device and
reduces the boot time by ~45 ms.
BUG=b:194990811
TEST=Build and boot to OS in guybrush. Perform cold and warm reboot
cycling for 250 iterations.
Change-Id: I02b94a842190ac4dcf45ff2d846b8665f06a9c75
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57562
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Move includes using library paths to the top and remove unnecessary
comments. Also, get rid of that unnecessary _SB scope. Use an absolute
path for the PCI0 device instead.
Change-Id: Ibb63f3ecd9cfbb6f564e0a9968c2776c25d84f79
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57856
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Move includes using library paths to the top and remove unnecessary
comments. Also, get rid of that unnecessary _SB scope. Use an absolute
path for the PCI0 device instead.
Change-Id: I7255ac1ec6c43dd4b21325ae60e117458bea956d
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57855
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Move includes using library paths to the top and remove unnecessary
comments. Also, get rid of that unnecessary _SB scope. Use an absolute
path for the PCI0 device instead.
Change-Id: I375ab879dd95d6a7a20644dc36312a1e62f58226
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57854
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Move includes using library paths to the top and remove unnecessary
comments. Also, get rid of that unnecessary _SB scope. Use an absolute
path for the PCI0 device instead.
Change-Id: I730cd3eeffff60b3b569bfb748febbdc8ca85990
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57850
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
