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DynamicTablesPkg: Update FADT fixed feature flags validation

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Validate the FADT fixed feature flags for
non-hardware reduced model.

Cc: Sami Mujawar <Sami.Mujawar@arm.com>
Cc: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
This commit is contained in:
Abdul Lateef Attar 2024-10-08 03:32:04 +00:00 committed by mergify[bot]
parent 21767dcf4e
commit 081cf576a2
1 changed files with 77 additions and 10 deletions
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87
DynamicTablesPkg/Library/Acpi/Common/AcpiFadtLib/FadtGenerator.c
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@ -2,6 +2,8 @@
FADT Table Generator
Copyright (c) 2017 - 2023, Arm Limited. All rights reserved.
Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Reference(s):
@ -66,6 +68,57 @@ Requirements:
EFI_ACPI_6_5_HW_REDUCED_ACPI | \
EFI_ACPI_6_5_LOW_POWER_S0_IDLE_CAPABLE)
/** This macro defines the valid mask for the FADT flag option
if HW_REDUCED_ACPI flag in the table is not set.
Invalid bits are: Bit 20 and 22-31 (reserved).
Valid bits are:
EFI_ACPI_6_5_WBINVD BIT0
EFI_ACPI_6_5_WBINVD_FLUSH BIT1
EFI_ACPI_6_5_PROC_C1 BIT2
EFI_ACPI_6_5_P_LVL2_UP BIT3
EFI_ACPI_6_5_PWR_BUTTON BIT4
EFI_ACPI_6_5_SLP_BUTTON BIT5
EFI_ACPI_6_5_FIX_RTC BIT6
EFI_ACPI_6_5_RTC_S4 BIT7
EFI_ACPI_6_5_TMR_VAL_EXT BIT8
EFI_ACPI_6_5_DCK_CAP BIT9
EFI_ACPI_6_5_RESET_REG_SUP BIT10
EFI_ACPI_6_5_SEALED_CASE BIT11
EFI_ACPI_6_5_HEADLESS BIT12
EFI_ACPI_6_5_CPU_SW_SLP BIT13
EFI_ACPI_6_5_PCI_EXP_WAK BIT14
EFI_ACPI_6_5_USE_PLATFORM_CLOCK BIT15
EFI_ACPI_6_5_S4_RTC_STS_VALID BIT16
EFI_ACPI_6_5_REMOTE_POWER_ON_CAPABLE BIT17
EFI_ACPI_6_5_FORCE_APIC_CLUSTER_MODEL BIT18
EFI_ACPI_6_5_FORCE_APIC_PHYSICAL_DESTINATION_MODE BIT19
EFI_ACPI_6_5_LOW_POWER_S0_IDLE_CAPABLE BIT21
*/
#define VALID_NON_HARDWARE_REDUCED_FLAG_MASK ( \
EFI_ACPI_6_5_WBINVD | \
EFI_ACPI_6_5_WBINVD_FLUSH | \
EFI_ACPI_6_5_PROC_C1 | \
EFI_ACPI_6_5_P_LVL2_UP | \
EFI_ACPI_6_5_PWR_BUTTON | \
EFI_ACPI_6_5_SLP_BUTTON | \
EFI_ACPI_6_5_FIX_RTC | \
EFI_ACPI_6_5_RTC_S4 | \
EFI_ACPI_6_5_TMR_VAL_EXT | \
EFI_ACPI_6_5_DCK_CAP | \
EFI_ACPI_6_5_RESET_REG_SUP | \
EFI_ACPI_6_5_SEALED_CASE | \
EFI_ACPI_6_5_HEADLESS | \
EFI_ACPI_6_5_CPU_SW_SLP | \
EFI_ACPI_6_5_PCI_EXP_WAK | \
EFI_ACPI_6_5_USE_PLATFORM_CLOCK | \
EFI_ACPI_6_5_S4_RTC_STS_VALID | \
EFI_ACPI_6_5_REMOTE_POWER_ON_CAPABLE | \
EFI_ACPI_6_5_FORCE_APIC_CLUSTER_MODEL | \
EFI_ACPI_6_5_FORCE_APIC_PHYSICAL_DESTINATION_MODE | \
EFI_ACPI_6_5_LOW_POWER_S0_IDLE_CAPABLE)
#pragma pack(1)
/** The AcpiFadt is a template EFI_ACPI_6_5_FIXED_ACPI_DESCRIPTION_TABLE
@ -391,17 +444,31 @@ FadtAddFixedFeatureFlags (
FixedFeatureFlags->Flags
));
if ((FixedFeatureFlags->Flags & ~(VALID_HARDWARE_REDUCED_FLAG_MASK)) != 0) {
DEBUG ((
DEBUG_WARN,
"FADT: Invalid Fixed feature flags defined by platform,"
"Invalid Flags bits are = 0x%x\n",
(FixedFeatureFlags->Flags & ~(VALID_HARDWARE_REDUCED_FLAG_MASK))
));
}
if ((FixedFeatureFlags->Flags & EFI_ACPI_6_5_HW_REDUCED_ACPI) != 0) {
if ((FixedFeatureFlags->Flags & ~(VALID_HARDWARE_REDUCED_FLAG_MASK)) != 0) {
DEBUG ((
DEBUG_WARN,
"FADT: Invalid Fixed feature flags defined by platform,"
"Invalid Flags bits are = 0x%x\n",
(FixedFeatureFlags->Flags & ~(VALID_HARDWARE_REDUCED_FLAG_MASK))
));
}
AcpiFadt.Flags |= (FixedFeatureFlags->Flags &
VALID_HARDWARE_REDUCED_FLAG_MASK);
AcpiFadt.Flags |= (FixedFeatureFlags->Flags &
VALID_HARDWARE_REDUCED_FLAG_MASK);
} else {
if ((FixedFeatureFlags->Flags & ~(VALID_NON_HARDWARE_REDUCED_FLAG_MASK)) != 0) {
DEBUG ((
DEBUG_WARN,
"FADT: Invalid Fixed feature flags defined for non-hardware reduced model,"
"Invalid Flags bits are = 0x%x\n",
(FixedFeatureFlags->Flags & ~(VALID_NON_HARDWARE_REDUCED_FLAG_MASK))
));
}
AcpiFadt.Flags |= (FixedFeatureFlags->Flags &
VALID_NON_HARDWARE_REDUCED_FLAG_MASK);
}
error_handler:
return Status;