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Platform/RPi/AcpiTables: Update all tables to latest ACPI 
Because of its widespread availability and low price, we expect the
Raspberry Pi source to be used by platform developers as a starting
point to create their own platform implementation.

As such, it makes a lot of sense to want to use the most up to date
underlying standards, even if the pay off is limited in this case,
or may even be seen as a liability in terms of ensuring greater
compatibility with older OSes, as it may help others benefit from
the latest improvements and features brought by modern ACPI.

We also happen to already be using ACPI 6.3 constructs, such as
PPTT (which was only introduced in ACPI 6.2 and further extended
in 6.3), and have some reliance on 6.x GIC, as the original MADT
binary blobs from Microsoft were 6.0 and abuse the GICR Base
Address field in order for Windows to boot properly (for reasons
that the proprietary nature of the Windows kernel makes difficult
to determine). So in effect, we did apply a potential breaking
change to Windows when we downgraded MADT to ACPI 5.1, though we
did validate at the time that the downgrade in ACPI version didn't
*seem* to break OS functionality. Still, because we are in the
dark as to what the ACPI fields we removed when downgrading ACPI
version were being used for, we obviously want to add them back.

Therefore, since we do see a need for ACPI 6.x features, and
effectively have a 6.3 table with PPTT, and also since we have
tested that we are not seeing ill effects from doing so for the
most common OSes we support, we bring all of the relevant ACPI
tables to version 6.3.

This is mostly accomplished by simply altering the version of
ACPI being references in the macros, except for the new fields
being initialized in the MADT table where we:
* Use 1 for GICR Base Address in GICC_STRUCTURE_INIT because, even
  as this field is not supposed to apply to any of our platforms,
  this is what Microsoft used in the original Pi 3 hardcoded MADT
  blobs and Windows 10 doesn't boot on the Pi 3 if set to 0.
* Use 2 for GIC version in GIC_DISTRIBUTOR_INIT, since the Pi 4 GIC
  is v2 only.

Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
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@pbatard
pbatard authored and Ard Biesheuvel committed May 6, 2020
1 parent 66d1b02 commit 11189124fbc24aae0d8c96dd0bd24a78b430d8e0
Showing 7 changed files with 66 additions and 64 deletions.
8 Platform/RaspberryPi/AcpiTables/AcpiTables.h
View file
@@ -32,7 +32,7 @@
#endif
#define EFI_ACPI_OEM_REVISION 0x00000200
#define EFI_ACPI_CREATOR_ID SIGNATURE_32 ('E','D','K','2')
#define EFI_ACPI_CREATOR_REVISION 0x00000200
#define EFI_ACPI_CREATOR_REVISION 0x00000300

#define EFI_ACPI_VENDOR_ID SIGNATURE_32 ('R','P','I','F')

@@ -63,7 +63,7 @@
#define RPI_SYSTEM_TIMER_BASE_ADDRESS 0xFF80001C
#endif

#define EFI_ACPI_5_1_CSRT_REVISION 0x00000000
#define EFI_ACPI_6_3_CSRT_REVISION 0x00000000

typedef enum
{
@@ -95,7 +95,7 @@ typedef struct
UINT16 Revision; // 2 bytes
UINT16 Reserved; // 2 bytes
UINT32 SharedInfoLength; // 4 bytes
} EFI_ACPI_5_1_CSRT_RESOURCE_GROUP_HEADER;
} EFI_ACPI_6_3_CSRT_RESOURCE_GROUP_HEADER;

//------------------------------------------------------------------------
// CSRT Resource Descriptor 12 bytes total
@@ -106,7 +106,7 @@ typedef struct
UINT16 ResourceType; // 2 bytes
UINT16 ResourceSubType; // 2 bytes
UINT32 UID; // 4 bytes
} EFI_ACPI_5_1_CSRT_RESOURCE_DESCRIPTOR_HEADER;
} EFI_ACPI_6_3_CSRT_RESOURCE_DESCRIPTOR_HEADER;

//------------------------------------------------------------------------
// Interrupts. These are specific to each platform
14 Platform/RaspberryPi/AcpiTables/Csrt.aslc
View file
@@ -41,7 +41,7 @@ typedef struct
//------------------------------------------------------------------------
typedef struct
{
EFI_ACPI_5_1_CSRT_RESOURCE_DESCRIPTOR_HEADER DmaControllerHeader;
EFI_ACPI_6_3_CSRT_RESOURCE_DESCRIPTOR_HEADER DmaControllerHeader;
DMA_CONTROLLER_VENDOR_DATA ControllerVendorData;
} RD_DMA_CONTROLLER;

@@ -61,7 +61,7 @@ typedef struct
//------------------------------------------------------------------------
typedef struct
{
EFI_ACPI_5_1_CSRT_RESOURCE_DESCRIPTOR_HEADER DmaChannelHeader;
EFI_ACPI_6_3_CSRT_RESOURCE_DESCRIPTOR_HEADER DmaChannelHeader;
DMA_CHANNEL_VENDOR_DATA ChannelVendorData;
} RD_DMA_CHANNEL;

@@ -71,7 +71,7 @@ typedef struct

typedef struct
{
EFI_ACPI_5_1_CSRT_RESOURCE_GROUP_HEADER ResGroupHeader;
EFI_ACPI_6_3_CSRT_RESOURCE_GROUP_HEADER ResGroupHeader;
RD_DMA_CONTROLLER DmaController;
RD_DMA_CHANNEL DmaChannels[RPI_DMA_CHANNEL_COUNT];
} RG_DMA;
@@ -87,17 +87,17 @@ typedef struct
// DMA Resource Group
RG_DMA DmaResourceGroup;

} EFI_ACPI_5_1_CSRT_TABLE;
} EFI_ACPI_6_3_CSRT_TABLE;

EFI_ACPI_5_1_CSRT_TABLE Csrt =
EFI_ACPI_6_3_CSRT_TABLE Csrt =
{
//------------------------------------------------------------------------
// ACPI Table Header
//------------------------------------------------------------------------
{
EFI_ACPI_5_1_CORE_SYSTEM_RESOURCE_TABLE_SIGNATURE, // Signature "CSRT"
EFI_ACPI_6_3_CORE_SYSTEM_RESOURCE_TABLE_SIGNATURE, // Signature "CSRT"
sizeof (EFI_ACPI_DESCRIPTION_HEADER) + sizeof (RG_DMA), // Length
EFI_ACPI_5_1_CSRT_REVISION, // Revision
EFI_ACPI_6_3_CSRT_REVISION, // Revision
0x00, // Checksum calculated at runtime.
EFI_ACPI_OEM_ID, // OEMID is a 6 bytes long field
EFI_ACPI_OEM_TABLE_ID, // OEM table identification (8 bytes long)
6 Platform/RaspberryPi/AcpiTables/Dbg2.aslc
View file
@@ -40,7 +40,7 @@

typedef struct {
EFI_ACPI_DBG2_DEBUG_DEVICE_INFORMATION_STRUCT Dbg2Device;
EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE BaseAddressRegister;
EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE BaseAddressRegister;
UINT32 AddressSize;
UINT8 NameSpaceString[RPI_DBG2_NAMESPACESTRING_FIELD_SIZE];
} DBG2_DEBUG_DEVICE_INFORMATION;
@@ -66,7 +66,7 @@ typedef struct {
OFFSET_OF (DBG2_DEBUG_DEVICE_INFORMATION, BaseAddressRegister), /* UINT16 BaseAddressRegister Offset */ \
OFFSET_OF (DBG2_DEBUG_DEVICE_INFORMATION, AddressSize) /* UINT16 AddressSize Offset */ \
}, \
ARM_GAS32 (UartBase), /* EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE BaseAddressRegister */ \
ARM_GAS32 (UartBase), /* EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE BaseAddressRegister */ \
UartAddrLen, /* UINT32 AddressSize */ \
UartNameStr /* UINT8 NameSpaceString[MAX_DBG2_NAME_LEN] */ \
}
@@ -75,7 +75,7 @@ typedef struct {
STATIC DBG2_TABLE Dbg2 = {
{
ACPI_HEADER (
EFI_ACPI_5_1_DEBUG_PORT_2_TABLE_SIGNATURE,
EFI_ACPI_6_3_DEBUG_PORT_2_TABLE_SIGNATURE,
DBG2_TABLE,
EFI_ACPI_DBG2_DEBUG_DEVICE_INFORMATION_STRUCT_REVISION
),
43 Platform/RaspberryPi/AcpiTables/Fadt.aslc
View file
@@ -26,19 +26,16 @@
#define EFI_ACPI_OEM_ID {'B','C','2','8','3','6'}
#endif

/*
* Note: Use ACPI 5.1 since we need to match MADT ACPI requirements
*/
EFI_ACPI_5_1_FIXED_ACPI_DESCRIPTION_TABLE Fadt = {
EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE Fadt = {
ACPI_HEADER (
EFI_ACPI_5_1_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE,
EFI_ACPI_5_1_FIXED_ACPI_DESCRIPTION_TABLE,
EFI_ACPI_5_1_FIXED_ACPI_DESCRIPTION_TABLE_REVISION
EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE,
EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE,
EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE_REVISION
),
0, // UINT32 FirmwareCtrl
0, // UINT32 Dsdt
EFI_ACPI_RESERVED_BYTE, // UINT8 Reserved0
EFI_ACPI_5_1_PM_PROFILE_APPLIANCE_PC, // UINT8 PreferredPmProfile
EFI_ACPI_6_3_PM_PROFILE_APPLIANCE_PC, // UINT8 PreferredPmProfile
0, // UINT16 SciInt
0, // UINT32 SmiCmd
0, // UINT8 AcpiEnable
@@ -72,24 +69,24 @@ EFI_ACPI_5_1_FIXED_ACPI_DESCRIPTION_TABLE Fadt = {
0, // UINT8 Century
EFI_ACPI_RESERVED_WORD, // UINT16 IaPcBootArch (Reserved on ARM)
EFI_ACPI_RESERVED_BYTE, // UINT8 Reserved1
EFI_ACPI_5_1_WBINVD | EFI_ACPI_5_1_SLP_BUTTON | // UINT32 Flags
EFI_ACPI_5_1_HW_REDUCED_ACPI,
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE ResetReg
EFI_ACPI_6_3_WBINVD | EFI_ACPI_6_3_SLP_BUTTON | // UINT32 Flags
EFI_ACPI_6_3_HW_REDUCED_ACPI,
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE ResetReg
0, // UINT8 ResetValue
EFI_ACPI_5_1_ARM_PSCI_COMPLIANT, // UINT16 ArmBootArchFlags
EFI_ACPI_5_1_FIXED_ACPI_DESCRIPTION_TABLE_MINOR_REVISION, // UINT8 MinorRevision
EFI_ACPI_6_3_ARM_PSCI_COMPLIANT, // UINT16 ArmBootArchFlags
EFI_ACPI_6_3_FIXED_ACPI_DESCRIPTION_TABLE_MINOR_REVISION, // UINT8 MinorRevision
0, // UINT64 XFirmwareCtrl
0, // UINT64 XDsdt
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XPm1aEvtBlk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XPm1bEvtBlk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XPm1aCntBlk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XPm1bCntBlk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XPm2CntBlk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XPmTmrBlk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XGpe0Blk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE XGpe1Blk
NULL_GAS, // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE SleepControlReg
NULL_GAS // EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE SleepStatusReg
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XPm1aEvtBlk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XPm1bEvtBlk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XPm1aCntBlk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XPm1bCntBlk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XPm2CntBlk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XPmTmrBlk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XGpe0Blk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE XGpe1Blk
NULL_GAS, // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE SleepControlReg
NULL_GAS // EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE SleepStatusReg
};

//
14 Platform/RaspberryPi/AcpiTables/Gtdt.aslc
View file
@@ -15,22 +15,22 @@
#include "AcpiTables.h"

#define RPI_GTDT_GLOBAL_FLAGS 0
#define RPI_GTDT_GTIMER_FLAGS EFI_ACPI_5_1_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY
#define RPI_GTDT_GTIMER_FLAGS EFI_ACPI_6_3_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY

#pragma pack (1)

typedef struct {
EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt;
} EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLES;
EFI_ACPI_6_3_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt;
} EFI_ACPI_6_3_GENERIC_TIMER_DESCRIPTION_TABLES;

#pragma pack ()

EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = {
EFI_ACPI_6_3_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = {
{
ACPI_HEADER(
EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLES,
EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION
EFI_ACPI_6_3_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
EFI_ACPI_6_3_GENERIC_TIMER_DESCRIPTION_TABLES,
EFI_ACPI_6_3_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION
),
RPI_SYSTEM_TIMER_BASE_ADDRESS, // UINT64 PhysicalAddress
0, // UINT32 Reserved
41 Platform/RaspberryPi/AcpiTables/Madt.aslc
View file
@@ -21,10 +21,10 @@
#pragma pack (1)

typedef struct {
EFI_ACPI_5_1_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER Header;
EFI_ACPI_5_1_GIC_STRUCTURE GicInterfaces[4];
EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER Header;
EFI_ACPI_6_3_GIC_STRUCTURE GicInterfaces[4];
#if (RPI_MODEL != 3)
EFI_ACPI_5_1_GIC_DISTRIBUTOR_STRUCTURE GicDistributor;
EFI_ACPI_6_3_GIC_DISTRIBUTOR_STRUCTURE GicDistributor;
#endif
} PI_MULTIPLE_APIC_DESCRIPTION_TABLE;

@@ -33,9 +33,9 @@ typedef struct {
PI_MULTIPLE_APIC_DESCRIPTION_TABLE Madt = {
{
ACPI_HEADER (
EFI_ACPI_5_1_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE,
EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE,
PI_MULTIPLE_APIC_DESCRIPTION_TABLE,
EFI_ACPI_5_1_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION
EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION
),
//
// MADT specific fields
@@ -44,25 +44,30 @@ PI_MULTIPLE_APIC_DESCRIPTION_TABLE Madt = {
0, // Flags
},
{
EFI_ACPI_5_1_GICC_STRUCTURE_INIT(
0, 0, GET_MPID(0, 0), EFI_ACPI_5_1_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq0),
EFI_ACPI_6_3_GICC_STRUCTURE_INIT (
0, 0, GET_MPID(0, 0), EFI_ACPI_6_0_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq0),
FixedPcdGet64 (PcdGicInterruptInterfaceBase), FixedPcdGet64 (PcdGicInterruptInterfaceVBase),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0),
EFI_ACPI_5_1_GICC_STRUCTURE_INIT(
1, 1, GET_MPID(0, 1), EFI_ACPI_5_1_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq1),
//
// Use 1 for GICR Base Address below, since Windows 10 on Raspberry Pi 3 does not
// boot otherwise, and this is the value that Microsoft had in their IoT blobs.
// Kept to 1 for GICv2-based Pi 4, since this field only matters for GICv3.
//
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0, 1, 0),
EFI_ACPI_6_3_GICC_STRUCTURE_INIT (
1, 1, GET_MPID(0, 1), EFI_ACPI_6_0_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq1),
FixedPcdGet64 (PcdGicInterruptInterfaceBase), FixedPcdGet64 (PcdGicInterruptInterfaceVBase),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0),
EFI_ACPI_5_1_GICC_STRUCTURE_INIT(
2, 2, GET_MPID(0, 2), EFI_ACPI_5_1_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq2),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0, 1, 0),
EFI_ACPI_6_3_GICC_STRUCTURE_INIT (
2, 2, GET_MPID(0, 2), EFI_ACPI_6_0_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq2),
FixedPcdGet64 (PcdGicInterruptInterfaceBase), FixedPcdGet64 (PcdGicInterruptInterfaceVBase),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0),
EFI_ACPI_5_1_GICC_STRUCTURE_INIT(
3, 3, GET_MPID(0, 3), EFI_ACPI_5_1_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq3),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0, 1, 0),
EFI_ACPI_6_3_GICC_STRUCTURE_INIT (
3, 3, GET_MPID(0, 3), EFI_ACPI_6_0_GIC_ENABLED, FixedPcdGet32 (PcdGicPmuIrq3),
FixedPcdGet64 (PcdGicInterruptInterfaceBase), FixedPcdGet64 (PcdGicInterruptInterfaceVBase),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0),
FixedPcdGet64 (PcdGicInterruptInterfaceHBase), FixedPcdGet32 (PcdGicGsivId), 0, 1, 0),
},
#if (RPI_MODEL != 3)
EFI_ACPI_5_0_GIC_DISTRIBUTOR_INIT(0, FixedPcdGet64 (PcdGicDistributorBase), 0)
EFI_ACPI_6_0_GIC_DISTRIBUTOR_INIT (0, FixedPcdGet64 (PcdGicDistributorBase), 0, 2)
#endif
};

4 Platform/RaspberryPi/AcpiTables/Spcr.aslc
View file
@@ -30,7 +30,7 @@
#endif
STATIC EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE Spcr = {
ACPI_HEADER (
EFI_ACPI_5_1_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE,
EFI_ACPI_6_3_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE,
EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE,
EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION
),
@@ -42,7 +42,7 @@ STATIC EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE Spcr = {
EFI_ACPI_RESERVED_BYTE,
EFI_ACPI_RESERVED_BYTE
},
// EFI_ACPI_5_1_GENERIC_ADDRESS_STRUCTURE BaseAddress;
// EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE BaseAddress;
ARM_GAS32 (RPI_UART_BASE_ADDRESS),
// UINT8 InterruptType;
EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERRUPT_TYPE_GIC,

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