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contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,sami.mujawar@arm.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: n5aI8RPLfEB0Q50PJvEiFncYx7686176AA= Content-Type: text/plain X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=YEYx5QfB; spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=arm.com (policy=none); arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}") ACPI 6.5 introduces a new filed to the MADT GICC structure to specify the TRBE interrupt. The TRBE interrupt is a Processor Private interrupt (PPI) and is used to specify a platform-specific interrupt to signal TRBE events. Therefore, update the MADT GICC structure parser to parse the new TRBE interrupt field. Also, add validations to check that the TRBE interrupt is within the PPI interrupt range. Signed-off-by: Sami Mujawar --- Notes: v2: - No code change from v1 patch series. [SAMI] ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Madt/MadtParser.c | 48 +++++++++++++++++++- 1 file changed, 46 insertions(+), 2 deletions(-) diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Madt/MadtParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Madt/MadtParser.c index 41edcb9ffd1da90893c04e8284ea3317a9e3b45a..3a4f246347f8ad3489fda083e3268e73baa9bc92 100644 --- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Madt/MadtParser.c +++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Madt/MadtParser.c @@ -1,7 +1,7 @@ /** @file MADT table parser - Copyright (c) 2016 - 2020, ARM Limited. All rights reserved. + Copyright (c) 2016 - 2023, ARM Limited. All rights reserved. Copyright (c) 2022, AMD Incorporated. All rights reserved. SPDX-License-Identifier: BSD-2-Clause-Patent @@ -97,6 +97,48 @@ ValidateSpeOverflowInterrupt ( } } +/** + This function validates the TRBE Interrupt in the GICC. + + @param [in] Ptr Pointer to the start of the field data. + @param [in] Context Pointer to context specific information e.g. this + could be a pointer to the ACPI table header. +**/ +STATIC +VOID +EFIAPI +ValidateTrbeInterrupt ( + IN UINT8 *Ptr, + IN VOID *Context + ) +{ + UINT16 TrbeInterrupt; + + TrbeInterrupt = *(UINT16 *)Ptr; + + // SPE not supported by this processor + if (TrbeInterrupt == 0) { + return; + } + + if ((TrbeInterrupt < ARM_PPI_ID_MIN) || + ((TrbeInterrupt > ARM_PPI_ID_MAX) && + (TrbeInterrupt < ARM_PPI_ID_EXTENDED_MIN)) || + (TrbeInterrupt > ARM_PPI_ID_EXTENDED_MAX)) + { + IncrementErrorCount (); + Print ( + L"\nERROR: TRBE Interrupt ID of %d is not in the allowed PPI ID " + L"ranges of %d-%d or %d-%d (for GICv3.1 or later).", + TrbeInterrupt, + ARM_PPI_ID_MIN, + ARM_PPI_ID_MAX, + ARM_PPI_ID_EXTENDED_MIN, + ARM_PPI_ID_EXTENDED_MAX + ); + } +} + /** An ACPI_PARSER array describing the GICC Interrupt Controller Structure. **/ @@ -122,7 +164,9 @@ STATIC CONST ACPI_PARSER GicCParser[] = { NULL }, { L"Reserved", 1, 77, L"0x%x", NULL, NULL, NULL, NULL }, { L"SPE overflow Interrupt", 2, 78, L"0x%x", NULL, NULL, - ValidateSpeOverflowInterrupt, NULL } + ValidateSpeOverflowInterrupt, NULL }, + { L"TRBE Interrupt", 2, 80, L"0x%x", NULL, NULL, + ValidateTrbeInterrupt, NULL } }; /** -- 'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)' -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. 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