Commit Graph

311 Commits

Author SHA1 Message Date
Mike Maslenkin aaf0846fa2 ArmPkg: remove ArmGicAcknowledgeInterrupt function.
A compiler warning was detected that 'IntId' could be used uninitialized
in the `else` branch.
Since there are no consumers of this function, it was decided to remove
this function completely.

Signed-off-by: Mike Maslenkin <mike.maslenkin@gmail.com>
2025-01-12 15:52:05 +00:00
kuqin12 d44b82270b ArmPkg: CodeQL Fixes.
Makes changes to comply with alerts raised by CodeQL.

The issues here fall into the following category:

1. unsigned-comparison-zero

Signed-off-by: Raymond Diaz <raymonddiaz@microsoft.com>
2024-10-16 08:18:16 +00:00
Oliver Smith-Denny 734e71f428 MdePkg: Move AsmMacroIoLib*.h from ArmPkg
AsmMacroIoLib.h and AsmMacroIoLibV8.h are used by the
CompilerIntrinsicsLib, which is moving to MdePkg. These
functions provide standard definitions for ARM/AARCH64
assembly code, respectively, and so are moved to the arch
directories in MdePkg to avoid MdePkg having a
dependency on ArmPkg.

Now that the files are in Arm/ and AArch64/ directories,
the filenames are changed to AsmMacroLib.h as we can
distinguish the architecture from the path.

AsmMacroIoLib.inc is unused and so is removed.

Continuous-integration-options: PatchCheck.ignore-multi-package

Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
2024-09-12 19:36:59 +00:00
Ard Biesheuvel b1bce5e564 ArmPkg/ArmMonitorLib: Implement SMCCC protocol correctly and directly
The SMCCC protocol stipulates the following:
- on AARCH64, 18 arguments can be passed, and 18 values can be returned,
  via registers X0-x17;
- on ARM, 8 arguments can be passed, and 8 values can be returned.

This makes ArmSmcLib and ArmHvcLib as implemented currently unsuitable
for use with SMCCC services in general, although for PSCI in particular,
they work fine.

The dependency on both ArmSmcLib and ArmHvcLib is also impractical
because it requires every platform that consumes ArmMonitorLib to
provide resolutions for each, even though most platforms will only ever
need one of these (and the choice is made at compile time)

So let's drop these dependencies, and re-implement the asm helpers from
scratch. Note that the only difference is the actual instruction used
-HVC vs SMC- and so all other code can be shared.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2024-07-25 14:41:09 +00:00
Ard Biesheuvel e76be772aa ArmPkg/ArmLib ArmMmuLib: Drop support for EL3/MON execution
Drop logic from the ARM architectural support libraries that can only
execute in EL3 on AArch64 or Monitor mode on 32-bit ARM. While early
32-bit ports (and even some early 64-bit code) included some monitor
logic in EDK2, UEFI per the spec runs in non-secure execution contexts
only, and secure monitor and other secure world duties are usually
delegated to TF-A (Trusted Firmware for the A profile).

Since there are no longer users of this code in EDK2 or the
edk2-platforms tree, let's remove it from the core support libraries.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2024-06-19 17:25:11 +00:00
Pierre Gondois cf323e2839 ArmPkg,MdePkg: Move ArmPkg/Chipset/Aarch64[|Mmu].h to MdePkg
Following the discussion at [1] and as the ArmLib relies on them,
move ArmPkg/Chipset/Aarch64[|Mmu].h files to the MdePkg.

Update the path to correctly include the moved files.

[1] https://edk2.groups.io/g/devel/message/111566

Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2024-06-15 03:57:14 +00:00
Pierre Gondois c68fb69dfe ArmPkg,MdePkg: Move ArmPkg/Chipset/ArmV7[|Mmu].h to MdePkg
Following the discussion at [1] and as the ArmLib relies on them,
move ArmPkg/Chipset/ArmV7[|Mmu].h files to the MdePkg.

Update the path to correctly include the moved files.

[1] https://edk2.groups.io/g/devel/message/111566

Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2024-06-15 03:57:14 +00:00
Leif Lindholm f2b9d5417d ArmPkg,MdePkg: move ArmLib.h to MdePkg
Related to https://bugzilla.tianocore.org/show_bug.cgi?id=4121, but not
resolving it. (Nearly?) all of ArmPkg describes industry standard
behaviour, and hence according to general rules, ought to live in MdePkg.

Addressing this will however be a substantial task.
Take a first step by moving the ArmLib interface definition to MdePkg,
as discussed in
https://edk2.groups.io/g/devel/topic/patch_v5_2_6/102725178

Continuous-integration-options: PatchCheck.ignore-multi-package
Cc: Pierre Gondois <pierre.gondois@arm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
2024-06-15 03:57:14 +00:00
Pierre Gondois 8707f835ae ArmPkg: Remove ArmCortexA9.h
The last reference to ArmCortexA9.h in the edk2 repository
was removed in:
a913ad0247 ("ArmPlatformPkg: remove ArmVExpressPkg")

The last reference to the file in the edk2-platforms
repository was agreed to be dropped:
https://edk2.groups.io/g/devel/message/115378

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2024-04-05 05:03:15 +00:00
Pierre Gondois ee249efe8c ArmPkg: Remove ArmCortexA5x.h
The last reference to ArmCortexA5x.h was removed in:
commit: cffa7925a2 ("ArmPkg: remove ArmCpuLib header
and implementations")
There are no reference to the file in the edk2-platforms
repository. Remove the file.

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2024-04-05 05:03:15 +00:00
Himanshu Sharma 855f528199 ArmPkg/ArmGicArchLib: Add macros for SPI and extended SPI ranges
Taking reference from Table 2-1 of the Arm Generic Interrupt Controller
Architecture Specification, Issue H, January 2022, add macros for the
SPI and extended SPI ranges with the purpose of reusability on including
the ArmPkg.

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Himanshu Sharma <Himanshu.Sharma@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
2024-03-04 09:58:10 +00:00
Pierre Gondois 9f0ebabb57 ArmPkg/ArmScmiDxe: Add PERFORMANCE_DESCRIBE_FASTCHANNEL support
The PERFORMANCE_DESCRIBE_FASTCHANNEL Scmi command is available
since SCMI v2.0 and allows to query information about the supported
fast-channels of the Scmi performance protocol.
Add support for this command.

Also move SCMI_MESSAGE_ID_PERFORMANCE enum definition up in the file
to use it in SCMI_PERFORMANCE_DESCRIBE_FASTCHANNEL function
declaration.

Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
2024-01-29 16:47:03 +00:00
Pierre Gondois 3630cdf6e7 ArmPkg/ArmScmiDxe: Rename PERFORMANCE_PROTOCOL_VERSION
Rename PERFORMANCE_PROTOCOL_VERSION to reflect the different
versions of the protocol. The macro is neither used in edk2 nor
in edk2-platforms.

Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
2024-01-29 16:47:03 +00:00
Sami Mujawar a671a14e63 ArmPkg/ArmLib: Add ArmHasEte () helper function
Create a helper function to query whether ID_AA64MFR1_EL1 indicates
presence of the Embedded Trace Extension (ETE). This feature is only
visible in AARCH64 state.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
2023-10-30 12:16:56 +00:00
Sami Mujawar 08431081a3 ArmPkg/ArmLib: Add ArmHasTrbe () helper function
Create a helper function to query whether ID_AA64MFR1_EL1 indicates
presence of the Trace Buffer Extension (TRBE). This feature is only
visible in AARCH64 state.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
2023-10-30 12:16:56 +00:00
Leif Lindholm 89dad77cfb ArmPkg/ArmLib: Add ArmHasVhe () helper function
Create a helper function to query whether ID_AA64MFR1_EL1 indicates
presence of the Virtualization Host Extensions. This feature is only
visible in AARCH64 state.

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Tested-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
2023-09-20 14:52:07 +00:00
Ard Biesheuvel 4f4a2c3b07 ArmPkg/ArmMmuLib: Drop buggy secure memory type check
Jake reports that the IS_ARM_MEMORY_REGION_ATTRIBUTES_SECURE() macro is
no longer accurate since commit 852227a9d5 ("ArmPkg/Mmu: Remove
handling of NONSECURE memory regions").

Fortunately, it only affects the NS bit in level 1 short descriptors,
which is ignored when executing in non-secure mode. And given that
running UEFI in the secure world is not a use case we aim to support,
let's just drop this logic altogether.

Reported-by: Jake Garver <jake@nvidia.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-09-12 10:20:27 +00:00
Taylor Beebe cdbdd12460 ArmPkg: Apply Uncrustify to Non-Compliant Files
This patch applies Uncrustify to the following files:
ArmPkg/Drivers/MmCommunicationPei/MmCommunicationPei.c
ArmPkg/Include/IndustryStandard/ArmStdSmc.h

Signed-off-by: Taylor Beebe <t@taylorbeebe.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2023-07-03 14:29:32 +00:00
Ard Biesheuvel 8a1f540596 ArmPkg: Drop individual memory permission helpers
Now that we have a sane API to set and clear memory permissions that
works the same on ARM and AArch64, we no longer have a need for the
individual set/clear no-access/read-only/no-exec helpers so let's drop
them.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-06-27 16:40:07 +00:00
Ard Biesheuvel 8f5ad634ad ArmPkg/ArmMmuLib: Extend API to manage memory permissions better
Currently, ArmSetMemoryAttributes () takes a combination of
EFI_MEMORY_xx constants describing the memory type and permission
attributes that should be set on a region of memory. In cases where the
memory type is omitted, we assume that the memory permissions being set
are final, and that existing memory permissions can be discarded.

This is problematic, because we aim to map memory non-executable
(EFI_MEMORY_XP) by default, and only relax this requirement for code
regions that are mapped read-only (EFI_MEMORY_RO). Currently, setting
one permission clears the other, and so code managing these permissions
has to be aware of the existing permissions in order to be able to
preserve them, and this is not always tractable (e.g., the UEFI memory
attribute protocol implements an abstraction that promises to preserve
memory permissions that it is not operating on explicitly).

So let's add an AttributeMask parameter to ArmSetMemoryAttributes(),
which is permitted to be non-zero if no memory type is being provided,
in which case only memory permission attributes covered in the mask will
be affected by the update.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Oliver Smith-Denny <osde@linux.microsoft.com>
Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
2023-06-26 09:11:53 +00:00
Marcin Juszkiewicz 4354c22f38 ArmPkg: add SMC defines for SiP service calls
They are useful for those platforms where SMC SiP calls exist.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-06-02 11:21:26 +00:00
Sami Mujawar 937fbe4878 ArmPkg: Fix return type for ArmGicGetInterfaceIdentification
The CPU Interface Identification Register (GICC_IIDR) is a 32-bit
register. Since ArmGicGetInterfaceIdentification () returns the value
read from the GICC_IIDR register, update the return type for this
function to UINT32.

Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
2023-06-01 15:52:01 +00:00
Sami Mujawar ea522a12b3 ArmPkg: Fix ArmGicSendSgiTo() parameters
The Software Generated Interrupt Register (GICD_SGIR) is a 32 bit
register with the following bit assignment:
  TargetListFilter, bits [25:24]
  CPUTargetList, bits [23:16]
  NSATT, bit [15]
  SGIINTID, bits [3:0]

Therefore, modify the TargetListFilter, CPUTargetList, SGI Interrupt ID
parameters of the ArmGicSendSgiTo () to use UINT8 instead of INTN.

Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
2023-06-01 15:52:01 +00:00
Sami Mujawar a44fef7de3 ArmPkg: Fix data type used for GicInterruptInterfaceBase
The data type used by variables representing the
GicInterruptInterfaceBase has been inconsistently used in the ArmGic
driver and the library.  The PCD defined for the GIC Interrupt interface
base address is UINT64. However, the data types for the variables used
is UINTN, INTN, and at some places UINT32.

Therefore, update the data types to use UINTN and add necessary
typecasts when reading values from the PCD. This should then be
consistent across AArch32 and AArch64 builds.

Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2023-06-01 15:52:01 +00:00
Sami Mujawar 4ec9a6f6cd ArmPkg: Fix data type used for GicDistributorBase
The data type used by variables representing the GicDistributorBase has
been inconsistently used in the ArmGic driver and the library.  The PCD
defined for the GIC Distributor base address is UINT64.  However, the
data types for the variables used is UINTN, INTN, and at some places
UINT32.

Therefore, update the data types to use UINTN and add necessary
typecasts when reading values from the PCD. This should then be
consistent across AArch32 and AArch64 builds.

Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
2023-06-01 15:52:01 +00:00
Marcin Juszkiewicz 9bf79303ae ArmPkg: older assemblers may lack ID_AA64ISAR2_EL1
ArmCpuInfo needs to be able to read ID_AA64ISAR2_EL1 system register.
Older toolchains do not know it.

Same solution as one for QEMU:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg929586.html

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-04-20 20:11:46 +00:00
Marvin Häuser f433fa59d2 ArmPkg/AsmMacroIoLibV8: Introduce ASM_FUNC_ALIGN()
With the current ASM_FUNC() macro, there is no good way to declare an
alignment constraint for a function. As ASM_FUNC() switches sections,
declaring the constraint before the macro invocation applies it to the
current location in the previous section. Declaring the constraint after
the macro invocation lets the function label point to the location prior
to alignment. Depending on toolchain behaviour, this may cause the label
to point to alignment padding preceding the actual function definition.

To address these issues, introduce the ASM_FUNC_ALIGN() macro, which
declares the alignment constraint right before the function label.

Signed-off-by: Marvin Häuser <mhaeuser@posteo.de>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2023-04-20 16:20:35 +00:00
Ard Biesheuvel 48d642a310 ArmPkg: Emit BTI opcodes when BTI codegen is enabled
When building with -mbranch-protection=bti, which affects the compiler
codegen only, ensure that the assembler based codegen is aligned with
this, by emitting the BTI C opcode at the start of each exported
function. While most exported functions are not in fact ever called
indirectly, whether or not this is the case is a property of the caller
so annotating every exported function is a reasonable default.

While at it, fix two occurrences in ArmPkg of exported functions that
did not use the ASM_FUNC() macro.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
2023-03-30 11:05:22 +00:00
Ard Biesheuvel b05523a4e9 ArmPkg/ArmMmuLib: Introduce region types for RO/XP WB cached memory
To prepare for the enablement of booting EFI with the SCTLR.WXN control
enabled, which makes all writeable memory regions non-executable by
default, introduce a memory type that we will use to describe the flash
region that carries the SEC and PEIM modules that execute in place. Even
if these are implicitly read-only due to the ROM nature, they need to be
mapped with read-only attributes in the page tables to be able to
execute from them.

Also add the XP counterpart which will be used for all normal DRAM right
at the outset.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Ard Biesheuvel 852227a9d5 ArmPkg/Mmu: Remove handling of NONSECURE memory regions
Non-secure memory is a distinction that only matters when executing code
in the secure world that reasons about the secure vs non-secure address
spaces. EDK2 was not designed for that, and the AArch64 version of the
MMU handling library already treats them as identical, so let's just
drop the ARM memory region types that mark memory as 'non-secure'
explicitly.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Ard Biesheuvel 6b821be140 ArmPkg/ArmMmuLib: Implement EFI_MEMORY_RP using access flag
Implement support for read-protected memory by wiring it up to the
access flag in the page table descriptor. The resulting mapping is
implicitly non-writable and non-executable as well, but this is good
enough for implementing this attribute, as we never rely on write or
execute permissions without read permissions.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Ard Biesheuvel 28dce5b130 ArmPkg/ArmMmuLib ARM: Isolate the access flag from AP mask
Split the ARM permission fields in the short descriptors into an access
flag and AP[2:1] as per the recommendation in the ARM ARM. This makes
the access flag available separately, which allows us to implement
EFI_MEMORY_RP memory analogous to how it will be implemented for
AArch64.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Ard Biesheuvel 699372d388 ArmPkg/CpuDxe ARM: Fix page-to-section attribute conversion
The section-to-page attribute conversion takes the shareability and
execute-never attributes into account, whereas the page-to-section
counterpart does not. The result is that GetMemoryRegionPage () -which
takes a section attribute argument (via *RegionAttributes) that is
ostensibly based on the first page in the range, but differs from the
actual page attributes when converted back- may return with a
RegionLength of zero. This is incorrect, and confuses code that scans a
region by calling GetMemoryRegion () in sequence.

So fix the conversion, and ASSERT () on a non-zero region length.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Ard Biesheuvel 3b76284883 ArmPkg/ArmMmuLib ARM: Split off XN page descriptor bit from type field
With large page support out of the picture, we can treat bits 1 and 0 of
the page descriptor as individual valid and XN bits, instead of treating
XN as a page type. Doing so aligns the handling of the attribute with
the section descriptor layout, as well as the XN handling on AArch64,
and this is beneficial for maintainability.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Ard Biesheuvel 82ccaaf8e7 ArmPkg/ArmMmuLib ARM: Remove half baked large page support
Large page support on 32-bit ARM is essentially a glorified contiguous
bit where 16 consecutive entries describing a contiguous range with the
same attributes are presented in a way that permits the TLB to cache its
translation with a single entry.

This was never wired up completely, and does not add a lot of value in
EFI, where the page granularity is 4k and we expect to be able to set RO
and XP permissions on individual pages.

Given that large page support complicates the handling of the XN bit at
the page level (which is in a different place depending on whether the
page is small or large), let's just rip it out.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2023-03-16 21:14:49 +00:00
Rebecca Cran d1855afc6e ArmPkg: Add GET_MPIDR_AFFINITY_BITS and MPIDR_MT_BIT to ArmLib.h
Signed-off-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2023-01-27 14:18:56 +00:00
Sami Mujawar 351fe77666 ArmPkg: Add FID definitions for Arm TRNG
Bugzilla: 3668 (https://bugzilla.tianocore.org/show_bug.cgi?id=3668)

The Arm True Random Number Generator Firmware, Interface 1.0,
Platform Design Document
(https://developer.arm.com/documentation/den0098/latest/)
defines an interface between an Operating System (OS) executing
at EL1 and Firmware (FW) exposing a conditioned entropy source
that is provided by a TRNG back end.

New function IDs have been defined by the specification for
accessing the TRNG services. Therefore, add these definitions
to the Arm standard SMC header.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2022-11-06 16:32:28 +00:00
Pierre Gondois 9a50990cdb ArmPkg/ArmMonitorLib: Definition for ArmMonitorLib library class
The ArmMonitorLib provides an abstract interface to issue
an HyperVisor Call (HVC) or System Monitor Call (SMC) depending
on the default conduit.
The PcdMonitorConduitHvc PCD allows to select the default conduit.

The new library relies on the ArmHvcLib and ArmSmcLib libraries.
A Null instance of these libraries can be used for the unused conduit.

Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
2022-11-06 16:32:28 +00:00
Ard Biesheuvel 0487cac09f ArmPkg/ArmMmuLib: Disable and re-enable MMU only when needed
When updating a page table descriptor in a way that requires break
before make, we temporarily disable the MMU to ensure that we don't
unmap the memory region that the code itself is executing from.

However, this is a condition we can check in a straight-forward manner,
and if the regions are disjoint, we don't have to bother with the MMU
controls, and we can just perform an ordinary break before make.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2022-10-19 09:07:13 +00:00
Minh Nguyen 953438e466 ArmPkg/SmbiosMiscDxe: Get SMBIOS information from OemMiscLib
In some scenarios, the information of Bios Version, Bios Release
and Embedded Controller Firmware Release are fetched during UEFI
booting. This patch supports updating those fields dynamically
when the PCDs are empty.

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
2022-09-23 14:39:10 +00:00
Minh Nguyen 7d74ea141e ArmPkg/SmbiosMiscDxe: Fix typo of "AssetTagType02"
This patch fixes typo from "AssertTagType02"
to "AssetTagType02".

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
2022-09-23 14:39:10 +00:00
Nhi Pham 130b649a8b ArmPkg/SmbiosMiscDxe: Support fetching System UUID
This adds an API to OemMiscLib for fetching the system UUID according to
the platform.

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
2022-09-23 14:39:10 +00:00
Minh Nguyen 8467a263f9 ArmPkg/ProcessorSubClassDxe: Get processor version from OemMiscLib
In some scenarios, the processor version may be updated dynamically
from pre-UEFI firmware during booting. But the processor version is
fixed with PCD (PcdProcessorVersion), so it can not be updated it
dynamically. This patch will support setting that value both
statically and dynamically.

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
2022-09-23 14:39:10 +00:00
Pranav Madhu 52bf4eba45 ArmPkg: Handle warm reboot request correctly
The warm reboot requests from OSPM are mapped to cold reboot. To handle
the warm reboot separately from a cold reboot, update
ArmSmcPsciResetSystemLib and to invoke the PSCI call with parameters
for warm reboot.

Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2022-09-05 13:52:51 +00:00
Ard Biesheuvel c8af26627a ArmPkg/CpuDxe: drop ARM_PROCESSOR_TABLE pseudo-ACPI table
The ARM_PROCESSOR_TABLE pseudo-ACPI table (which carries a ACPI-table
like header but is published as a EFI config table) is not described in
any relevant spec, and is not known to be relied upon by any OS. Let's
just get rid of it.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Tested-by: Sami Mujawar <sami.mujawar@arm.com>
2022-07-22 17:10:09 +00:00
Rebecca Cran 35d9b7ea2d ArmPkg: Remove RVCT support
RVCT is obsolete and no longer used.
Remove support for it.

Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2022-05-13 14:58:54 +00:00
Rebecca Cran 103fa647d1 ArmPkg: Replace CoreId and ClusterId with Mpidr in ARM_CORE_INFO struct
Remove the ClusterId and CoreId fields in the ARM_CORE_INFO structure in
favor of a new Mpidr field. Update code in
ArmPlatformPkg/PrePeiCore/MainMPCore and ArmPlatformPkg/PrePi/MainMPCore.c
to use the new field and call new macros GET_MPIDR_AFF0 and GET_MPIDR_AFF1
instead.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2022-01-30 11:04:41 +00:00
Nhi Pham b451c69088 ArmPkg/ProcessorSubClassDxe: Get serial and part number from OemMiscLib
Currently, the serial and part number of a processor are filled with
fixed PCDs. However, they may be updated dynamically according to the
information being passed from a the pre-UEFI firmware during booting.
So, this patch is to support updating these string fields from
OemMiscLib if the PCDs are empty.

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-12-16 18:08:22 +00:00
Nhi Pham 45e3842970 ArmPkg/SmbiosMiscDxe: Get full SMBIOS strings from OemMiscLib
Typically, the information of the SMBIOS type 1/2/3 is fetched from an
FRU device during UEFI booting intead of fixed PCDs. Therefore, this
patch is to add more HII string fields in the OemMiscLib and support
updating these SMBIOS types with the strings provided by the OemMiscLib
if the PCDs are empty.

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-12-16 18:08:22 +00:00
Rebecca Cran 4d30352445 ArmPkg: Add SMC helper functions
Add functions ArmCallSmc0/1/2/3 to do SMC calls with 0, 1, 2 or 3
arguments.
The functions return up to 3 values.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-12-14 11:30:26 +00:00