Commit Graph

1056 Commits

Author SHA1 Message Date
Pierre Gondois 05db766bee ArmPkg: Remove duplicated words
In an effort to clean the documentation of the above
package, remove duplicated words, and fix a typo while at it.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.muajwar@arm.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
2022-09-05 13:52:51 +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
Liu, Zhiguang 0f7bccf584 UefiCpuPkg: Simplify InitializeSeparateExceptionStacks
Hide the Exception implementation details in CpuExcetionHandlerLib and
caller only need to provide buffer

Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
2022-08-09 04:12:28 +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
Robbie King 7861b24dc9 ArmPkg/Drivers: ArmGicIsInterruptEnabled returns incorrect value
The issue appears to have been introduced by:

41fb5d46 : ArmPkg/ArmGic: Use the GIC Redistributor instead of GIC Distributor for GICv3

The changes to ArmGicIsInterruptEnabled() introduced the error where the Boolean
result is assigned to Interrupts, but then the bit position check is performed
again (against the computed Boolean result instead of the interrupt mask) during
the return statement.

Fix removes erroneous test and relies on boolean test made at return.

Signed-off-by: Robbie King <robbiek@xsightlabs.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2022-07-01 15:28:08 +00:00
Ray Ni e2ae0bed29 ArmPkg/ArmExceptionLib: Follow new CpuExceptionHandlerLib APIs
CpuExceptionHandlerLib has been refactored with following changes:
1. Removed InitializeCpuInterruptHandlers in 2a09527ebc
2. Removed InitializeCpuExceptionHandlersEx and
   added InitializeSeparateExceptionStacks in e7abb94d1f

The patch updates ARM version of CpuExceptionHandlerLib to follow
the API changes.

The functionality to ARM platforms should be none.

Signed-off-by: Ray Ni <ray.ni@intel.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2022-06-14 02:59:22 +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
Ard Biesheuvel 017564d637 ArmPkg/ArmMmuLib AARCH64: avoid EL0 accessible mappings
We never run any code at EL0, and so it would seem that any access
permissions set for EL0 (via the AP[1] attribute in the page tables) are
irrelevant. We currently set EL0 and EL1 permissions to the same value
arbitrarily.

However, this causes problems on hardware like the Apple M1 running the
MacOS hypervisor framework, which enters EL1 with SCTLR_EL1.SPAN
enabled, causing the Privileged Access Never (PAN) feature to be enabled
on any exception taken to EL1, including the IRQ exceptions that handle
our timer interrupt. When PAN is enabled, EL1 has no access to any
mappings that are also accessible to EL0, causing the firmware to crash
if it attempts to access such a mapping.

Even though it is debatable whether or not SCTLR_EL1.SPAN should be
disabled at entry or whether the firmware should put all UNKNOWN bits in
all system registers in a consistent state (which it should), using EL0
permissions serves no purpose whatsoever so let's fix that regardless.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Leif Lindholm <leif@nuviainc.com>
2022-02-01 23:09:01 +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
Kun Qin 8cc5590eab ArmPkg: MmCommunicationDxe: Update MM communicate `MessageLength` check
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3751

Current MM communicate routine from ArmPkg would conduct few checks prior
to proceeding with SMC calls. However, the inspection step is different
from PI specification.

This patch updated MM communicate input argument inspection routine to
assure that "if the `MessageLength` is zero, or too large for the MM
implementation to manage, the MM implementation must update the
`MessageLength` to reflect the size of the `Data` buffer that it can
tolerate", as described by `EFI_MM_COMMUNICATION_PROTOCOL.Communicate()`
section in PI specification.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>

Signed-off-by: Kun Qin <kuqin12@gmail.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2022-01-27 02:16:17 +00:00
Kun Qin 1aa1ec4574 ArmPkg: MmCommunicationDxe: Update MM communicate `CommSize` check
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3751

Current MM communicate routine from ArmPkg would conduct few checks prior
to proceeding with SMC calls. However, the inspection step is different
from PI specification.

This patch updated MM communicate input argument inspection routine to
assure `CommSize` represents "the size of the data buffer being passed
in" instead of the size of the data being used from data buffer, as
described by section `EFI_MM_COMMUNICATION2_PROTOCOL.Communicate()` in PI
specification.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>

Signed-off-by: Kun Qin <kuqin12@gmail.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2022-01-27 02:16:17 +00:00
Kun Qin 541a077bd1 ArmPkg: MmCommunicationDxe: Update MM communicate `CommBuffer**` checks
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3751

Current MM communicate routine from ArmPkg would conduct few checks prior
to proceeding with SMC calls. However, the inspection step is different
from PI specification.

This patch updated MM communicate input argument inspection routine to
assure that return code `EFI_INVALID_PARAMETER` represents "the
`CommBuffer**` parameters do not refer to the same location in memory",
as described by `EFI_MM_COMMUNICATION2_PROTOCOL.Communicate()` section
in PI specification.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>

Signed-off-by: Kun Qin <kuqin12@gmail.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2022-01-27 02:16:17 +00:00
Kun Qin ce37f45955 ArmPkg: MmCommunicationDxe: MM communicate function argument attributes
Current MM communicate2 function from ArmPkg described input arguments
`CommBufferPhysical`, `CommBufferVirtual` and `CommSize` as input only,
which mismatches with the "input and output type" as in PI specification.

This change updated function descriptions of MM communite2 to match input
argument types.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>

Signed-off-by: Kun Qin <kuqin12@gmail.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2022-01-27 02:16:17 +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
Nhi Pham via groups.io a6c0418651 ArmPkg/SmbiosMiscDxe: Remove duplicate HII string definition
This patch removes duplicate HII string definition in the
MiscSystemManufacturer.uni.

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 c039fa7ff0 ArmPkg: Update SMC calls to use the new ArmCallSmc0/1/2/3 functions
New SMC helper functions have been added to reduce the amount of
template code. Update ArmSmcPsciResetSystemLib and
Smbios/ProcessorSubClassDxe to use them.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-12-14 11:30:26 +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
Michael Kubacki 429309e0c6 ArmPkg: Apply uncrustify changes
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737

Apply uncrustify changes to .c/.h files in the ArmPkg package

Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Andrew Fish <afish@apple.com>
2021-12-07 17:24:28 +00:00
Michael D Kinney 1871d28eaf ArmPkg: Change OPTIONAL keyword usage style
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3760

Update all use of ', OPTIONAL' to ' OPTIONAL,' for function params.

Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Andrew Fish <afish@apple.com>
2021-12-07 17:24:28 +00:00
Michael D Kinney a4a582e180 ArmPkg: Change use of EFI_D_* to DEBUG_*
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3739

Update all use of EFI_D_* defines in DEBUG() macros to DEBUG_* defines.

Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2021-12-07 17:24:28 +00:00
Michael D Kinney 365dced2c3 ArmPkg: Update YAML to ignore specific ECC files/errors
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3749

Update package YAML files to ignore ECC errors that are
already present.  These issues must be fixed in the future,
but should not block source code changes for these known
issues.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-11-30 14:19:07 +00:00
Michael D Kinney f331310a10 ArmPkg: Reproduce builds across source format changes
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3688

Use DEBUG_LINE_NUMBER instead of __LINE__.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Tested-by: Michael Kubacki <michael.kubacki@microsoft.com>
2021-11-08 18:01:35 +00:00
Nhi Pham 6254037223 ArmPkg: Implement PlatformBootManagerLib for LinuxBoot
LinuxBoot is a firmware that replaces specific firmware functionality
like the UEFI DXE phase with a Linux kernel and runtime. It is built-in
UEFI image like an application, which is executed at the end of DXE
phase.

To achieve the LinuxBoot boot flow "SEC->PEI->DXE->BDS->LinuxBoot",
today we use the common well-known GUID of UEFI Shell for LinuxBoot
payload, so LinuxBoot developers can effortlessly find the UEFI Shell
Application and replace it with the LinuxBoot payload without
recompiling platform EDK2 (There might be an issue with a few systems
that don't have a UEFI Shell). Also, we have a hard requirement to force
the BDS to boot into the LinuxBoot as it is essentially required that
only the LinuxBoot boot option is permissible and UEFI is an
intermediate bootstrap phase. Considering all the above, it is
reasonable to just have a new GUID for LinuxBoot and require a LinuxBoot
specific BDS implementation. In addition, with making the BDS
implementation simpler, we can reduce many DXE drivers which we think it
is not necessary for LinuxBoot booting.

This patch adds a new PlatformBootManagerLib implementation which
registers only the gArmTokenSpaceGuid.PcdLinuxBootFileGuid for LinuxBoot
payload as an active boot option. It allows BDS to jump to the LinuxBoot
quickly by skipping the UiApp and UEFI Shell.

The PlatformBootManagerLib library derived from
ArmPkg/Library/PlatformBootManagerLib.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>

Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Acked-by: Moritz Fischer <moritzf@google.com>
2021-10-23 08:38:20 +00:00
Ming Huang 7e43d3e086 ArmPkg/Smbios: Fix max cache size 2 wrong issue
As SMBIOS spec, bit-31 of maximum cache size 2 should be 1
for 64K granularity.

Signed-off-by: Ming Huang <huangming@linux.alibaba.com>
Reviewed-by: Rebecca Cran <rebecca@nuviainc.com>
Acked-by: Leif Lindholm <leif@nuviainc.com>
2021-10-15 10:47:50 +00:00
Abner Chang 9a7509e465 ArmVirtPkg/FdtPciHostBridgeLib: Relocate FdtPciHostBridgeLib to OvmfPkg/Fdt
Relocate FdtPciHostBridgeLib to OvmfPkg/Fdt, this library is
leverage by both ARM and RISC-V archs. Also use
PcdPciMmio32Translation and PcdPciMmio64Translation
PCDs provided by MdePkg instead of ArmPkg.

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <jiewen.yao@intel.com>
2021-10-14 06:25:52 +00:00
Abner Chang 7d78a86ecf ArmPkg: Use PcdPciIoTranslation PCD from MdePkg
PcdPciIoTranslation PCD is relocated to MdePkg and leveraged by
both ARM and RISC-V arch. This patch removes the one from ArmPkg
and address the corresponding changes required for other modules
under ArmVirtPkg.

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-10-14 06:25:52 +00:00
Rebecca Cran c49cb8f30e ArmPkg: SmbiosMiscDxe: Don't populate ExtendedBiosSize when size < 16MB
According to the SMBIOS specification, the ExtendedBiosSize field should
be zero when the BIOS size is less than 16MB:

"Size (n) where 64K * (n+1) is the size of the
physical device containing the BIOS, in
bytes.
FFh - size is 16MB or greater, see Extended
BIOS ROM Size for actual size."

Fix the code in MiscBiosVendorFunction.c to only populate the
ExtendedBiosSize field if the BIOS size is greater than 16MB.

Fix the code to correctly populate the ExtendedBiosSize field with the
unit bits set to MB if the size is between 16MB and 16GB.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Nhi Pham <nhi@os.amperecomputing.com>
2021-10-05 09:25:52 +00:00
Nhi Pham ac6388add4 ArmPkg/ProcessorSubClassDxe: Fix the format of ProcessorId
According to SMBIOS 3.4, section 7.5.3.3 ARM64-class CPUs, if
SMCCC_ARCH_SOC_ID is supported, the first DWORD is the JEP-106 code and
the second DWORD is the SoC revision value. But in the current
implementation, they are set in reverse. This patch is to correct it.

Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Rebecca Cran <rebecca@nuviainc.com>
Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Rebecca Cran <rebecca@nuviainc.com>
Acked-by: Leif Lindholm <leif@nuviainc.com>
2021-09-16 14:45:48 +00:00
Grzegorz Bernacki cae735f613 ArmPkg: Enable boot discovery policy for ARM package.
This commit adds code which check BootDiscoveryPolicy variable and
calls Boot Policy Manager Protocol to connect device specified by
the variable. To enable that mechanism for platform
EfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy PCD must be
added to DSC file and BootDiscoveryPolicyUiLib should be added to
UiApp libraries.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Reviewed-by: Sunny Wang <sunny.wang@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-08-30 14:23:14 +00:00
Ard Biesheuvel a82bad9730 ArmPkg/GicV3Dxe: Don't signal EOI on arbitrary interrupts
Currently, at ExitBootServices() time, the GICv3 driver signals
End-Of-Interrupt (EOI) on all interrupt lines that are supported by the
interrupt controller. This appears to have been carried over from the
GICv2 version, but has been turned into something that violates the GIC
spec, and may trigger SError exceptions on some implementations.

Marc puts it as follows:

  The GIC interrupt state machine is pretty strict. An interrupt can
  only be deactivated (with or without prior priority drop) if it has
  been acknowledged first. In GIC speak, this means that only the
  following sequences are valid:

  With EOImode==0:
	  x = ICC_IAR{0,1}_EL1;
	  ICC_EOIR{0,1}_EL1 = x;

  With EOImode==1:
	  x = ICC_IAR{0,1}_EL1;
	  ICC_EOIR{0,1}_EL1 = x;
	  ICC_DIR_EL1 = x;

  Any write to ICC_EOIR{0,1}_EL1 that isn't the direct consequence of
  the same value being read from ICC_IAR{0,1}_EL1, and with the correct
  nesting, breaks the state machine and leads to unpredictable results
  that affects *all* interrupts in the system (most likely, the priority
  system is dead). See Figure 4-3 ("Interrupt handling state machine")
  in Arm IHI 0069F for a description of the acceptable transitions.

  Additionally, on implementations that have ICC_CTLR_EL1.SEIS==1, a
  SError may be generated to signal the error. See the various

  <quote>
	  IMPLEMENTATION_DEFINED "SError ....";
  </quote>

  that are all over the pseudocode contained in the same architecture
  spec. Needless to say, this is pretty final for any SW that would do
  silly things on such implementations (which do exist).

Given that in our implementation, every signalled interrupt is acked,
handled and EOId in sequence, there is no reason to EOI all interrupts
at ExitBootServices() time in the first place, so let's just drop this
code. This fixes an issue reported by Marc where an SError is triggered
by this code, bringing down the system.

Reported-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-08-27 12:53:36 +00:00
Etienne Carriere aee0098faf ArmPkg: prepare 32bit ARM build of StandaloneMmPkg
Changes in ArmPkg to prepare building StandaloneMm firmware for
32bit Arm architectures.

Adds ArmmmuStandaloneMmLib library to the list of the standard
components build for ArmPkg on when ARM architectures.

Changes path of source file AArch64/ArmMmuStandaloneMmLib.c
and compile it for both 32bit and 64bit architectures.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2021-08-11 11:32:32 +00:00
Etienne Carriere 03e19e6bc8 ArmPkg/IndustryStandard: 32b/64b agnostic FF-A, Mm SVC and Std SMC IDs
Defines ARM_SVC_ID_FFA_* and ARM_SVC_ID_SP_* identifiers for 32bit
function IDs as per SMCCC specification. Defines also generic ARM
SVC identifier macros to wrap 32bit or 64bit identifiers upon target
built architecture.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-08-11 11:32:32 +00:00
Rebecca Cran a63914d3f6 ArmPkg: Move cache defs used in Universal/Smbios into ArmCache.h
Many of the cache definitions in ArmLibPrivate.h are being used outside
of ArmLib, in Universal/Smbios. Move them into ArmCache.h to make them
public, and remove the include of ArmLibPrivate.h from files in
Universal/Smbios.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-06-18 15:25:57 +00:00
Sean Brogan 04ddd1271e ArmPkg: SpellCheck: Update valid acronyms in ExtendedWords
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3445

Spellcheck was not covering all specified files due to CSpell v5 and
Node v10 incompatibility of current CI pipeline configuration.

This change updates ExtendedWords for ArmPkg with valid acronyms to avoid
potential spell errors.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>

Signed-off-by: Sean Brogan <sean.brogan@microsoft.com>
Signed-off-by: Kun Qin <kuqin12@gmail.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2021-06-16 14:40:00 +00:00
Andreas Sandberg e1999b264f ArmPkg/ArmGic: Fix maximum number of interrupts in GICv3
Bugzilla: 3415 (https://bugzilla.tianocore.org/show_bug.cgi?id=3415)

The GICv3 architecture supports up to 1020 ordinary interrupt
lines. The actual number of interrupts supported is described by the
ITLinesNumber field in the GICD_TYPER register. The total number of
implemented registers is normally calculated as
32*(ITLinesNumber+1). However, maximum value (0x1f) is a special case
since that would indicate that 1024 interrupts are implemented.

Add handling for this special case in ArmGicGetMaxNumInterrupts.

Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
2021-05-27 10:08:32 +00:00
Nicola Mazzucato 375f2d8e68 ArmPkg: Update SCMI Base Protocol version to 0x20000
The SCP-firmware has moved to full support for SCMIv2 which means that
the base protocol can be either compliant with SCMI v1 or v2.

Allow any version between SCMI v1.0 and SCMI v2.0 to be compatible
with the current implementation.

Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Tested-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-05-10 15:46:42 +00:00
Pierre Gondois f11252e9fd ArmPkg: Add ArmPkg.ci.yaml
Add ArmPkg.ci.yaml to configure the CI for the
ArmPkg.

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Sami Mujawar <sami.mujawar@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois b8de64bede ArmPkg: Correct small typos
The 'cspell' CI test detected some small typos in ArmPkg.
Correct them.

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Sami Mujawar <sami.mujawar@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois c2bd8a1a82 ArmPkg: Add OemMiscLibNull library to ArmPkg.dsc
Add the OemMiscLibNull library to the [Components] section of
ArmPkg.dsc, allowing to complete the 'DscCompleteCheck' CI test.

According to .pytool/Readme about the 'DscCompleteCheck' test:
The test considers it an error if any INF does not appear in the
`Components` section of the package-level DSC.

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Bret Barkelew <bret.barkelew@microsoft.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois a145d5f240 ArmPkg: Re-order libraries in ArmPkg.dec
This patch alphabetically orders libraries advertised in ArmPkg.dec.

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois 3093c95de8 ArmPkg: Document libraries in ArmPkg.dec
This patch documents the libraries advertised in ArmPkg.dec.

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois d03f71dd8b ArmPkg: Add missing library headers to ArmPkg.dec
Some library headers are missing/incorrect in ArmPkg.dec.
This makes the 'LibraryClassCheck' CI test fail. This patch
adds/corrects them.

According to .pytool/Readme about the 'LibraryClassCheck' test:
This test scans at all library header files found in the
`Library` folders in all of the package's declared include
directories and ensures that all files have a matching
LibraryClass declaration in the DEC file for the package.

Fixes: https://bugzilla.tianocore.org/show_bug.cgi?id=3254
Fixes: https://bugzilla.tianocore.org/show_bug.cgi?id=3258
Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Bret Barkelew <bret.barkelew@microsoft.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois fd9cc2052e ArmPkg: Fix Ecc error 3002 in StandaloneMmMmuLib
This patch fixes the following Ecc reported error:
Non-Boolean comparisons should use a compare operator
(==, !=, >, < >=, <=)

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Sami Mujawar <sami.mujawar@arm.com>
2021-04-28 12:03:51 +00:00
Pierre Gondois cc15a619a6 ArmPkg: Fix Ecc error 8003
This patch fixes the following Ecc reported error:
The #ifndef at the start of an include file should have
one postfix underscore, and no prefix underscore character

Some include guards have been modified to match the name of the
header file. Some comments have also been added on the closing
'#endif'.

Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.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: Sami Mujawar <sami.mujawar@arm.com>
2021-04-28 12:03:51 +00:00
Rebecca Cran 5b90b8abb4 ArmPkg: Fix typo of Manufacturer in comment in SmbiosMiscDxe
'Manufacturer' was spelled wrongly in a comment in
MiscChassisManufacturerData.c.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-04-27 12:46:26 +00:00
Rebecca Cran 13f32d4a64 ArmPkg: Fix calculation of offset of chassis SKU Number in SmbiosMiscDxe
The calculation of the chassis SKU number field was being calculated
incorrectly, forgetting that there's one element already present in
the structure.
Fix the calculation and improve code readability by introducing a
SkuNumberField variable.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-04-27 12:46:26 +00:00
Rebecca Cran bbeb1bea41 ArmPkg: Allow platforms to report their boot status via OemMiscLib call
Add a new function to OemMiscLib to allow platforms to report their boot
status into the Type32 SMBIOS table.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-04-27 12:46:26 +00:00
Rebecca Cran bf2b99990e ArmPkg: Allow platforms to supply more data for SMBIOS Type3 record
Add OemMiscLib calls to allow platforms to provide the following
information about the chassis:

o Bootup state
o Power supply/supplies state
o Thermal state
o Security state
o Chassis height (in RMU)
o Number of power cords

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
2021-04-27 12:46:26 +00:00
Pierre Gondois 96479947bc ArmPkg: Fix Ecc error 8005 for SCMI_MESSAGE_ID_PERFORMANCE
This patch fixes the following Ecc reported error:
Variable name does not follow the rules:
1. First character should be upper case
2. Must contain lower case characters
3. No white space characters
4. Global variable name must start with a 'g'

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2021-04-15 19:53:39 +00:00