2018-03-14 |
Fixup `SMCCC_ARCH_FEATURES` semantics
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When querying `SMCCC_ARCH_WORKAROUND_1` through `SMCCC_ARCH_FEATURES`,
return either:
* -1 to indicate the PE on which `SMCCC_ARCH_FEATURES` is called
requires firmware mitigation for CVE-2017-5715 but the mitigation
is not compiled in.
* 0 to indicate that firmware mitigation is required, or
* 1 to indicate that no firmware mitigation is required.
This patch complies with v1.2 of the firmware interfaces
specification (ARM DEN 0070A).
Change-Id: Ibc32d6620efdac6c340758ec502d95554a55f02a
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 14 Mar 2018
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Use PFR0 to identify need for mitigation of CVE-2017-5715
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If the CSV2 field reads as 1 then branch targets trained in one
context cannot affect speculative execution in a different context.
In that case skip the workaround on Cortex A72 and A73.
Change-Id: Ide24fb6efc77c548e4296295adc38dca87d042ee
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 14 Mar 2018
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2018-02-27 |
MISRA fixes for Cortex A75 AMU implementation
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Change-Id: I61c9fdfda0c0b3c3ec6249519db23602cf4c2100
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 27 Feb 2018
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Refactor AMU support for Cortex A75
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This patch also fixes the assumption that the counters are disabled on
the resume path. This is incorrect as the AMU counters are enabled
early in the CPU reset function before `cpuamu_context_restore()`
runs.
Change-Id: I38a94eb166a523f00de18e86860434ffccff2131
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 27 Feb 2018
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Factor out CPU AMU helpers
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This patch also fixes `cpuamu_write_cpuamcntenclr_el0()` to use an MSR
instruction instead of an MRS instruction.
Change-Id: Ia6531f64b5ebc60ba432124eaa8d8eaccba40ed0
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 27 Feb 2018
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2018-01-19 |
Merge pull request #1200 from robertovargas-arm/bl2-el3
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Add BL2_AT_EL3 build option
davidcunado-arm
authored
on 19 Jan 2018
GitHub
committed
on 19 Jan 2018
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2018-01-18 |
bl2-el3: Add BL2_EL3 image
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This patch enables BL2 to execute at the highest exception level
without any dependancy on TF BL1. This enables platforms which already
have a non-TF Boot ROM to directly load and execute BL2 and subsequent BL
stages without need for BL1. This is not currently possible because
BL2 executes at S-EL1 and cannot jump straight to EL3.
Change-Id: Ief1efca4598560b1b8c8e61fbe26d1f44e929d69
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
Roberto Vargas
committed
on 18 Jan 2018
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2018-01-11 |
Add hooks to save/restore AMU context for Cortex A75
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Change-Id: I504d3f65ca5829bc1f4ebadb764931f8379ee81f
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 11 Jan 2018
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2017-11-29 |
Implement support for the Activity Monitor Unit on Cortex A75
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The Cortex A75 has 5 AMU counters. The first three counters are fixed
and the remaining two are programmable.
A new build option is introduced, `ENABLE_AMU`. When set, the fixed
counters will be enabled for use by lower ELs. The programmable
counters are currently disabled.
Change-Id: I4bd5208799bb9ed7d2596e8b0bfc87abbbe18740
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos
committed
on 29 Nov 2017
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2017-09-07 |
Cortex-A72: Implement workaround for erratum 859971
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Erratum 855971 applies to revision r0p3 or earlier Cortex-A72 CPUs. The
recommended workaround is to disable instruction prefetch.
Change-Id: I7fde74ee2a8a23b2a8a1891b260f0eb909fad4bf
Signed-off-by: Eleanor Bonnici <Eleanor.bonnici@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Eleanor Bonnici
authored
on 2 Aug 2017
Jeenu Viswambharan
committed
on 7 Sep 2017
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Cortex-A57: Implement workaround for erratum 859972
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Erratum 855972 applies to revision r1p3 or earlier Cortex-A57 CPUs. The
recommended workaround is to disable instruction prefetch.
Change-Id: I56eeac0b753eb1432bd940083372ad6f7e93b16a
Signed-off-by: Eleanor Bonnici <Eleanor.bonnici@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Eleanor Bonnici
authored
on 2 Aug 2017
Jeenu Viswambharan
committed
on 7 Sep 2017
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2017-08-29 |
CPU: Correct names of implementation-defined aux regs
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At present, various CPU register macros that refer to CPUACTLR are named
ACTLR. This patch fixes that.
The previous register names are retained, but guarded by the
ERROR_DEPRECATED macro, so as not to break platforms that continue using
the old names.
Change-Id: Ia872196d81803f8f390b887d149e0fd054df519b
Signed-off-by: Eleanor Bonnici <Eleanor.bonnici@arm.com>
Eleanor Bonnici
authored
on 9 Aug 2017
Jeenu Viswambharan
committed
on 29 Aug 2017
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CPU: Make shifted constants unsigned
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In order to avoid Undefined behavior, left operand in left-shift
expressions needs to be unsigned, and of sufficient size. The safest and
most consistent approach is to use unsigned long long type.
Change-Id: I9612f16a6e6ea4c7df62a02497d862abf19b8e1b
Signed-off-by: Eleanor Bonnici <Eleanor.bonnici@arm.com>
Eleanor Bonnici
authored
on 9 Aug 2017
Jeenu Viswambharan
committed
on 29 Aug 2017
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2017-06-14 |
include: add U()/ULL() macros for constants
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This patch uses the U() and ULL() macros for constants, to fix some
of the signed-ness defects flagged by the MISRA scanner.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Varun Wadekar
committed
on 14 Jun 2017
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Unique names for defines in the CPU libraries
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This patch makes all the defines in the CPU libraries unique,
by prefixing them with the CPU name.
NOTE: PLATFORMS USING THESE MACROS WILL HAVE TO UPDATE THEIR CODE
TO START USING THE UPDATED NAMES
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Varun Wadekar
committed
on 14 Jun 2017
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2017-06-01 |
Add support for Cortex-A75 and Cortex-A55 CPUs
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Both Cortex-A75 and Cortex-A55 CPUs use the ARM DynamIQ Shared Unit
(DSU). The power-down and power-up sequences are therefore mostly
managed in hardware, and required software operations are considerably
simpler.
Change-Id: I68b30e6e1ebe7c041d5e67f39c59f08575fc7ecc
Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
David Wang
authored
on 9 Nov 2016
Jeenu Viswambharan
committed
on 1 Jun 2017
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2017-05-24 |
Cortex-A53: add some bit definitions
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Add some bit definitions of CPUACTLR register in Cortex-A53
CPU library.
Change-Id: I142fd8ac4b06dd651a32e22951e71cdebbea123a
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Dan Handley <dan.handley@arm.com>
Haojian Zhuang
authored
on 23 May 2017
Dan Handley
committed
on 24 May 2017
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2017-05-03 |
Use SPDX license identifiers
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To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.
NOTE: Files that have been imported by FreeBSD have not been modified.
[0]: https://spdx.org/
Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
dp-arm
committed
on 3 May 2017
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2017-03-20 |
Add workaround for ARM Cortex-A53 erratum 855873
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ARM erratum 855873 applies to all Cortex-A53 CPUs.
The recommended workaround is to promote "data cache clean"
instructions to "data cache clean and invalidate" instructions.
For core revisions of r0p3 and later this can be done by setting a bit
in the CPUACTLR_EL1 register, so that hardware takes care of the promotion.
As CPUACTLR_EL1 is both IMPLEMENTATION DEFINED and can be trapped to EL3,
we set the bit in firmware.
Also we dump this register upon crashing to provide more debug
information.
Enable the workaround for the Juno boards.
Change-Id: I3840114291958a406574ab6c49b01a9d9847fec8
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara
committed
on 20 Mar 2017
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2017-02-28 |
Tegra: enable ECC/Parity protection for Cortex-A57 CPUs
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This patch enables L2 ECC and Parity Protection for ARM Cortex-A57 CPUs
for Tegra SoCs.
Change-Id: I038fcd529991d0201a4951ce2730ab71b1c980f9
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Varun Wadekar
committed
on 28 Feb 2017
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2017-02-23 |
cpus: denver: disable DCO operations from platform code
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This patch moves the code to disable DCO operations out from common
CPU files. This allows the platform code to call thsi API as and
when required. There are certain CPU power down states which require
the DCO to be kept ON and platforms can decide selectively now.
Change-Id: Icb946fe2545a7d8c5903c420d1ee169c4921a2d1
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Varun Wadekar
committed
on 23 Feb 2017
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2017-02-22 |
cpus: Add support for all Denver variants
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This patch adds support for all variants of the Denver CPUs. The
variants export their cpu_ops to allow all Denver platforms to run
the Trusted Firmware stack.
Change-Id: I1488813ddfd506ffe363d8a32cda1b575e437035
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Varun Wadekar
committed
on 22 Feb 2017
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2017-01-30 |
Report errata workaround status to console
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The errata reporting policy is as follows:
- If an errata workaround is enabled:
- If it applies (i.e. the CPU is affected by the errata), an INFO
message is printed, confirming that the errata workaround has been
applied.
- If it does not apply, a VERBOSE message is printed, confirming
that the errata workaround has been skipped.
- If an errata workaround is not enabled, but would have applied had
it been, a WARN message is printed, alerting that errata workaround
is missing.
The CPU errata messages are printed by both BL1 (primary CPU only) and
runtime firmware on debug builds, once for each CPU/errata combination.
Relevant output from Juno r1 console when ARM Trusted Firmware is built
with PLAT=juno LOG_LEVEL=50 DEBUG=1:
VERBOSE: BL1: cortex_a57: errata workaround for 806969 was not applied
VERBOSE: BL1: cortex_a57: errata workaround for 813420 was not applied
INFO: BL1: cortex_a57: errata workaround for disable_ldnp_overread was applied
WARNING: BL1: cortex_a57: errata workaround for 826974 was missing!
WARNING: BL1: cortex_a57: errata workaround for 826977 was missing!
WARNING: BL1: cortex_a57: errata workaround for 828024 was missing!
WARNING: BL1: cortex_a57: errata workaround for 829520 was missing!
WARNING: BL1: cortex_a57: errata workaround for 833471 was missing!
...
VERBOSE: BL31: cortex_a57: errata workaround for 806969 was not applied
VERBOSE: BL31: cortex_a57: errata workaround for 813420 was not applied
INFO: BL31: cortex_a57: errata workaround for disable_ldnp_overread was applied
WARNING: BL31: cortex_a57: errata workaround for 826974 was missing!
WARNING: BL31: cortex_a57: errata workaround for 826977 was missing!
WARNING: BL31: cortex_a57: errata workaround for 828024 was missing!
WARNING: BL31: cortex_a57: errata workaround for 829520 was missing!
WARNING: BL31: cortex_a57: errata workaround for 833471 was missing!
...
VERBOSE: BL31: cortex_a53: errata workaround for 826319 was not applied
INFO: BL31: cortex_a53: errata workaround for disable_non_temporal_hint was applied
Also update documentation.
Change-Id: Iccf059d3348adb876ca121cdf5207bdbbacf2aba
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Jeenu Viswambharan
committed
on 30 Jan 2017
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2017-01-23 |
Use #ifdef for IMAGE_BL* instead of #if
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One nasty part of ATF is some of boolean macros are always defined
as 1 or 0, and the rest of them are only defined under certain
conditions.
For the former group, "#if FOO" or "#if !FOO" must be used because
"#ifdef FOO" is always true. (Options passed by $(call add_define,)
are the cases.)
For the latter, "#ifdef FOO" or "#ifndef FOO" should be used because
checking the value of an undefined macro is strange.
Here, IMAGE_BL* is handled by make_helpers/build_macro.mk like
follows:
$(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))
$(OBJ): $(2)
@echo " CC $$<"
$$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -D$(IMAGE) -c $$< -o $$@
This means, IMAGE_BL* is defined when building the corresponding
image, but *undefined* for the other images.
So, IMAGE_BL* belongs to the latter group where we should use #ifdef
or #ifndef.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada
committed
on 23 Jan 2017
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2016-12-15 |
Add provision to extend CPU operations at more levels
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Various CPU drivers in ARM Trusted Firmware register functions to handle
power-down operations. At present, separate functions are registered to
power down individual cores and clusters.
This scheme operates on the basis of core and cluster, and doesn't cater
for extending the hierarchy for power-down operations. For example,
future CPUs might support multiple threads which might need powering
down individually.
This patch therefore reworks the CPU operations framework to allow for
registering power down handlers on specific level basis. Henceforth:
- Generic code invokes CPU power down operations by the level
required.
- CPU drivers explicitly mention CPU_NO_RESET_FUNC when the CPU has no
reset function.
- CPU drivers register power down handlers as a list: a mandatory
handler for level 0, and optional handlers for higher levels.
All existing CPU drivers are adapted to the new CPU operations framework
without needing any functional changes within.
Also update firmware design guide.
Change-Id: I1826842d37a9e60a9e85fdcee7b4b8f6bc1ad043
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Jeenu Viswambharan
committed
on 15 Dec 2016
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2016-07-12 |
bl31: Add error reporting registers
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This patch adds cpumerrsr_el1 and l2merrsr_el1 to the register dump on
error for applicable CPUs.
These registers hold the ECC errors on L1 and L2 caches.
This patch updates the A53, A57, A72, A73 (l2merrsr_el1 only) CPU libraries.
Signed-off-by: Naga Sureshkumar Relli <nagasure@xilinx.com>
Naga Sureshkumar Relli
authored
on 1 Jul 2016
Soren Brinkmann
committed
on 12 Jul 2016
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2016-06-01 |
Add support for ARM Cortex-A73 MPCore Processor
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This patch adds ARM Cortex-A73 MPCore Processor support
in the CPU specific operations framework. It also includes
this support for the Base FVP port.
Change-Id: I0e26b594f2ec1d28eb815db9810c682e3885716d
Yatharth Kochar
committed
on 1 Jun 2016
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2016-04-21 |
Add support for Cortex-A57 erratum 833471 workaround
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Change-Id: I86ac81ffd7cd094ce68c4cceb01c16563671a063
Sandrine Bailleux
committed
on 21 Apr 2016
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Add support for Cortex-A57 erratum 826977 workaround
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Change-Id: Icaacd19c4cef9c10d02adcc2f84a4d7c97d4bcfa
Sandrine Bailleux
committed
on 21 Apr 2016
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Add support for Cortex-A57 erratum 829520 workaround
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Change-Id: Ia2ce8aa752efb090cfc734c1895c8f2539e82439
Sandrine Bailleux
committed
on 21 Apr 2016
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