From: "PierreGondois" <pierre.gondois@arm.com>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
Sami Mujawar <sami.mujawar@arm.com>
Subject: [PATCH edk2-platforms v1 3/3] Platform/ARM: Juno: Generate ASL description of a PCIe bus
Date: Wed, 27 Apr 2022 16:59:43 +0200 [thread overview]
Message-ID: <20220427145943.402487-4-Pierre.Gondois@arm.com> (raw)
In-Reply-To: <20220427145943.402487-1-Pierre.Gondois@arm.com>
From: Pierre Gondois <Pierre.Gondois@arm.com>
The Dynamic Tables Framework has been updated to add support for
generating an ASL description of PCIe busses.
This patch:
- Describes the PCI address-range mapping and PCI devices legacy
interrupts in the Configuration Manager of the Juno
- Add the generation of a new SSDT table describing the PCIe bus
- Removes the existing (and hard-coded) SSDT table describing the
PCIe bus
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
.../AslTables/SsdtPci.asl | 195 ---------------
.../ConfigurationManager.c | 227 +++++++++++++++++-
.../ConfigurationManager.h | 27 +++
.../ConfigurationManagerDxe.inf | 1 -
4 files changed, 249 insertions(+), 201 deletions(-)
delete mode 100644 Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/AslTables/SsdtPci.asl
diff --git a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/AslTables/SsdtPci.asl b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/AslTables/SsdtPci.asl
deleted file mode 100644
index 2ed37ea83c6c..000000000000
--- a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/AslTables/SsdtPci.asl
+++ /dev/null
@@ -1,195 +0,0 @@
-/** @file
- SSDT for Juno PCIe
-
- Copyright (c) 2014 - 2019, ARM Ltd. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "ArmPlatform.h"
-
-/*
- See ACPI 6.1 Section 6.2.13
-
- There are two ways that _PRT can be used.
-
- In the first model, a PCI Link device is used to provide additional
- configuration information such as whether the interrupt is Level or
- Edge triggered, it is active High or Low, Shared or Exclusive, etc.
-
- In the second model, the PCI interrupts are hardwired to specific
- interrupt inputs on the interrupt controller and are not
- configurable. In this case, the Source field in _PRT does not
- reference a device, but instead contains the value zero, and the
- Source Index field contains the global system interrupt to which the
- PCI interrupt is hardwired.
-
- We use the first model with link indirection to set the correct
- interrupt type as PCI defaults (Level Triggered, Active Low) are not
- compatible with GICv2.
-*/
-#define LNK_DEVICE(Unique_Id, Link_Name, irq) \
- Device(Link_Name) { \
- Name(_HID, EISAID("PNP0C0F")) \
- Name(_UID, Unique_Id) \
- Name(_PRS, ResourceTemplate() { \
- Interrupt(ResourceProducer, Level, ActiveHigh, Exclusive) { irq } \
- }) \
- Method (_CRS, 0) { Return (_PRS) } \
- Method (_SRS, 1) { } \
- Method (_DIS) { } \
-}
-
-#define PRT_ENTRY(Address, Pin, Link) \
- Package (4) { \
- Address, /* uses the same format as _ADR */ \
- Pin, /* The PCI pin number of the device (0-INTA, 1-INTB, 2-INTC, 3-INTD) */ \
- Link, /* Interrupt allocated via Link device */ \
- Zero /* global system interrupt number (no used) */ \
-}
-
-/*
- See Reference [1] 6.1.1
- "High word–Device #, Low word–Function #. (for example, device 3,
- function 2 is 0x00030002). To refer to all the functions on a device #,
- use a function number of FFFF)."
-*/
-#define ROOT_PRT_ENTRY(Pin, Link) PRT_ENTRY(0x0000FFFF, Pin, Link)
- // Device 0 for Bridge.
-
-DefinitionBlock("SsdtPci.aml", "SSDT", 1, "ARMLTD", "ARM-JUNO", EFI_ACPI_ARM_OEM_REVISION) {
- Scope(_SB) {
- //
- // PCI Root Complex
- //
- LNK_DEVICE(1, LNKA, 168)
- LNK_DEVICE(2, LNKB, 169)
- LNK_DEVICE(3, LNKC, 170)
- LNK_DEVICE(4, LNKD, 171)
-
- Device(PCI0)
- {
- Name(_HID, EISAID("PNP0A08")) // PCI Express Root Bridge
- Name(_CID, EISAID("PNP0A03")) // Compatible PCI Root Bridge
- Name(_SEG, Zero) // PCI Segment Group number
- Name(_BBN, Zero) // PCI Base Bus Number
- Name(_CCA, 1) // Initially mark the PCI coherent (for JunoR1)
-
- // Root Complex 0
- Device (RP0) {
- Name(_ADR, 0xF0000000) // Dev 0, Func 0
- }
-
- // PCI Routing Table
- Name(_PRT, Package() {
- ROOT_PRT_ENTRY(0, LNKA), // INTA
- ROOT_PRT_ENTRY(1, LNKB), // INTB
- ROOT_PRT_ENTRY(2, LNKC), // INTC
- ROOT_PRT_ENTRY(3, LNKD), // INTD
- })
- // Root complex resources
- Method (_CRS, 0, Serialized) {
- Name (RBUF, ResourceTemplate () {
- WordBusNumber ( // Bus numbers assigned to this root
- ResourceProducer,
- MinFixed, MaxFixed, PosDecode,
- 0, // AddressGranularity
- 0, // AddressMinimum - Minimum Bus Number
- 255, // AddressMaximum - Maximum Bus Number
- 0, // AddressTranslation - Set to 0
- 256 // RangeLength - Number of Busses
- )
-
- DWordMemory ( // 32-bit BAR Windows
- ResourceProducer, PosDecode,
- MinFixed, MaxFixed,
- Cacheable, ReadWrite,
- 0x00000000, // Granularity
- 0x50000000, // Min Base Address
- 0x57FFFFFF, // Max Base Address
- 0x00000000, // Translate
- 0x08000000 // Length
- )
-
- QWordMemory ( // 64-bit BAR Windows
- ResourceProducer, PosDecode,
- MinFixed, MaxFixed,
- Cacheable, ReadWrite,
- 0x00000000, // Granularity
- 0x4000000000, // Min Base Address
- 0x40FFFFFFFF, // Max Base Address
- 0x00000000, // Translate
- 0x100000000 // Length
- )
-
- DWordIo ( // IO window
- ResourceProducer,
- MinFixed,
- MaxFixed,
- PosDecode,
- EntireRange,
- 0x00000000, // Granularity
- 0x00000000, // Min Base Address
- 0x007fffff, // Max Base Address
- 0x5f800000, // Translate
- 0x00800000, // Length
- ,,,TypeTranslation
- )
- }) // Name(RBUF)
-
- Return (RBUF)
- } // Method(_CRS)
-
- //
- // OS Control Handoff
- //
- Name(SUPP, Zero) // PCI _OSC Support Field value
- Name(CTRL, Zero) // PCI _OSC Control Field value
-
- /*
- See [1] 6.2.10, [2] 4.5
- */
- Method(_OSC,4) {
- // Check for proper UUID
- If(LEqual(Arg0,ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))) {
- // Create DWord-adressable fields from the Capabilities Buffer
- CreateDWordField(Arg3,0,CDW1)
- CreateDWordField(Arg3,4,CDW2)
- CreateDWordField(Arg3,8,CDW3)
-
- // Save Capabilities DWord2 & 3
- Store(CDW2,SUPP)
- Store(CDW3,CTRL)
-
- // Only allow native hot plug control if OS supports:
- // * ASPM
- // * Clock PM
- // * MSI/MSI-X
- If(LNotEqual(And(SUPP, 0x16), 0x16)) {
- And(CTRL,0x1E,CTRL) // Mask bit 0 (and undefined bits)
- }
-
- // Always allow native PME, AER (no dependencies)
-
- // Never allow SHPC (no SHPC controller in this system)
- And(CTRL,0x1D,CTRL)
-
- If(LNotEqual(Arg1,One)) { // Unknown revision
- Or(CDW1,0x08,CDW1)
- }
-
- If(LNotEqual(CDW3,CTRL)) { // Capabilities bits were masked
- Or(CDW1,0x10,CDW1)
- }
-
- // Update DWORD3 in the buffer
- Store(CTRL,CDW3)
- Return(Arg3)
- } Else {
- Or(CDW1,4,CDW1) // Unrecognized UUID
- Return(Arg3)
- }
- } // End _OSC
- } // PCI0
- }
-}
diff --git a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
index d147bbc317db..61c704411620 100644
--- a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
+++ b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
@@ -111,11 +111,12 @@ EDKII_PLATFORM_REPOSITORY_INFO ArmJunoPlatformRepositoryInfo = {
},
// SSDT table describing the PCI root complex
{
- EFI_ACPI_6_2_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,
+ EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,
0, // Unused
- CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdSsdt),
- (EFI_ACPI_DESCRIPTION_HEADER*)ssdtpci_aml_code
- }
+ CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdSsdtPciExpress),
+ NULL,
+ SIGNATURE_64 ('S','S','D','T','-','P','C','I')
+ },
},
// Boot architecture information
@@ -244,7 +245,86 @@ EDKII_PLATFORM_REPOSITORY_INFO ArmJunoPlatformRepositoryInfo = {
// The start bus number
FixedPcdGet32 (PcdPciBusMin),
// The end bus number
- FixedPcdGet32 (PcdPciBusMax)
+ FixedPcdGet32 (PcdPciBusMax),
+ // AddressMapToken
+ REFERENCE_TOKEN (PciAddressMapRef),
+ // InterruptMapToken
+ REFERENCE_TOKEN (PciInterruptMapRef)
+ },
+
+ // PCI address-range mapping references
+ {
+ { REFERENCE_TOKEN (PciAddressMapInfo[0]) },
+ { REFERENCE_TOKEN (PciAddressMapInfo[1]) },
+ { REFERENCE_TOKEN (PciAddressMapInfo[2]) }
+ },
+ // PCI address-range mapping information
+ {
+ { // PciAddressMapInfo[0] -> 32-bit BAR Window
+ PCI_SS_M32, // SpaceCode
+ 0x50000000, // PciAddress
+ 0x50000000, // CpuAddress
+ 0x08000000 // AddressSize
+ },
+ { // PciAddressMapInfo[1] -> 64-bit BAR Window
+ PCI_SS_M64, // SpaceCode
+ 0x4000000000, // PciAddress
+ 0x4000000000, // CpuAddress
+ 0x0100000000 // AddressSize
+ },
+ { // PciAddressMapInfo[2] -> IO BAR Window
+ PCI_SS_IO, // SpaceCode
+ 0x00000000, // PciAddress
+ 0x5f800000, // CpuAddress
+ 0x00800000 // AddressSize
+ },
+ },
+
+ // PCI device legacy interrupts mapping information
+ {
+ { REFERENCE_TOKEN (PciInterruptMapInfo[0]) },
+ { REFERENCE_TOKEN (PciInterruptMapInfo[1]) },
+ { REFERENCE_TOKEN (PciInterruptMapInfo[2]) },
+ { REFERENCE_TOKEN (PciInterruptMapInfo[3]) }
+ },
+ // PCI device legacy interrupts mapping information
+ {
+ { // PciInterruptMapInfo[0] -> Device 0, INTA
+ 0, // PciBus
+ 0, // PciDevice
+ 0, // PciInterrupt
+ {
+ 168, // Interrupt
+ 0x0 // Flags
+ }
+ },
+ { // PciInterruptMapInfo[1] -> Device 0, INTB
+ 0, // PciBus
+ 0, // PciDevice
+ 1, // PciInterrupt
+ {
+ 169, // Interrupt
+ 0x0 // Flags
+ }
+ },
+ { // PciInterruptMapInfo[2] -> Device 0, INTC
+ 0, // PciBus
+ 0, // PciDevice
+ 2, // PciInterrupt
+ {
+ 170, // Interrupt
+ 0x0 // Flags
+ }
+ },
+ { // PciInterruptMapInfo[3] -> Device 0, INTD
+ 0, // PciBus
+ 0, // PciDevice
+ 3, // PciInterrupt
+ {
+ 171, // Interrupt
+ 0x0 // Flags
+ }
+ },
},
// GIC Msi Frame Info
@@ -962,6 +1042,105 @@ GetLpiInfo (
return EFI_NOT_FOUND;
}
+
+/** Return PCI address-range mapping Info.
+
+ @param [in] This Pointer to the Configuration Manager Protocol.
+ @param [in] CmObjectId The Object ID of the CM object requested
+ @param [in] SearchToken A unique token for identifying the requested
+ CM_ARM_PCI_ADDRESS_MAP_INFO object.
+ @param [in, out] CmObject Pointer to the Configuration Manager Object
+ descriptor describing the requested Object.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND The required object information is not found.
+**/
+EFI_STATUS
+EFIAPI
+GetPciAddressMapInfo (
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST This,
+ IN CONST CM_OBJECT_ID CmObjectId,
+ IN CONST CM_OBJECT_TOKEN SearchToken,
+ IN OUT CM_OBJ_DESCRIPTOR * CONST CmObject
+ )
+{
+ EDKII_PLATFORM_REPOSITORY_INFO * PlatformRepo;
+ UINT32 TotalObjCount;
+ UINT32 ObjIndex;
+
+ if ((This == NULL) || (CmObject == NULL)) {
+ ASSERT (This != NULL);
+ ASSERT (CmObject != NULL);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ PlatformRepo = This->PlatRepoInfo;
+
+ TotalObjCount = ARRAY_SIZE (PlatformRepo->PciAddressMapInfo);
+
+ for (ObjIndex = 0; ObjIndex < TotalObjCount; ObjIndex++) {
+ if (SearchToken == (CM_OBJECT_TOKEN)&PlatformRepo->PciAddressMapInfo[ObjIndex]) {
+ CmObject->ObjectId = CmObjectId;
+ CmObject->Size = sizeof (PlatformRepo->PciAddressMapInfo[ObjIndex]);
+ CmObject->Data = (VOID*)&PlatformRepo->PciAddressMapInfo[ObjIndex];
+ CmObject->Count = 1;
+ return EFI_SUCCESS;
+ }
+ }
+
+ return EFI_NOT_FOUND;
+}
+
+/** Return PCI device legacy interrupt mapping Info.
+
+ @param [in] This Pointer to the Configuration Manager Protocol.
+ @param [in] CmObjectId The Object ID of the CM object requested
+ @param [in] SearchToken A unique token for identifying the requested
+ CM_ARM_PCI_INTERRUPT_MAP_INFO object.
+ @param [in, out] CmObject Pointer to the Configuration Manager Object
+ descriptor describing the requested Object.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND The required object information is not found.
+**/
+EFI_STATUS
+EFIAPI
+GetPciInterruptMapInfo (
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST This,
+ IN CONST CM_OBJECT_ID CmObjectId,
+ IN CONST CM_OBJECT_TOKEN SearchToken,
+ IN OUT CM_OBJ_DESCRIPTOR * CONST CmObject
+ )
+{
+ EDKII_PLATFORM_REPOSITORY_INFO * PlatformRepo;
+ UINT32 TotalObjCount;
+ UINT32 ObjIndex;
+
+ if ((This == NULL) || (CmObject == NULL)) {
+ ASSERT (This != NULL);
+ ASSERT (CmObject != NULL);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ PlatformRepo = This->PlatRepoInfo;
+
+ TotalObjCount = ARRAY_SIZE (PlatformRepo->PciInterruptMapInfo);
+
+ for (ObjIndex = 0; ObjIndex < TotalObjCount; ObjIndex++) {
+ if (SearchToken == (CM_OBJECT_TOKEN)&PlatformRepo->PciInterruptMapInfo[ObjIndex]) {
+ CmObject->ObjectId = CmObjectId;
+ CmObject->Size = sizeof (PlatformRepo->PciInterruptMapInfo[ObjIndex]);
+ CmObject->Data = (VOID*)&PlatformRepo->PciInterruptMapInfo[ObjIndex];
+ CmObject->Count = 1;
+ return EFI_SUCCESS;
+ }
+ }
+
+ return EFI_NOT_FOUND;
+}
+
/** Return a list of Configuration Manager object references pointed to by the
given input token.
@@ -1031,6 +1210,18 @@ GetCmObjRefs (
CmObject->Count = ARRAY_SIZE (PlatformRepo->CoresLpiRef);
return EFI_SUCCESS;
}
+ if (SearchToken == (CM_OBJECT_TOKEN)&PlatformRepo->PciAddressMapRef) {
+ CmObject->Size = sizeof (PlatformRepo->PciAddressMapRef);
+ CmObject->Data = (VOID*)&PlatformRepo->PciAddressMapRef;
+ CmObject->Count = ARRAY_SIZE (PlatformRepo->PciAddressMapRef);
+ return EFI_SUCCESS;
+ }
+ if (SearchToken == (CM_OBJECT_TOKEN)&PlatformRepo->PciInterruptMapRef) {
+ CmObject->Size = sizeof (PlatformRepo->PciInterruptMapRef);
+ CmObject->Data = (VOID*)&PlatformRepo->PciInterruptMapRef;
+ CmObject->Count = ARRAY_SIZE (PlatformRepo->PciInterruptMapRef);
+ return EFI_SUCCESS;
+ }
return EFI_NOT_FOUND;
}
@@ -1320,6 +1511,32 @@ GetArmNameSpaceObject (
);
break;
+ case EArmObjPciAddressMapInfo:
+ Status = HandleCmObjectRefByToken (
+ This,
+ CmObjectId,
+ PlatformRepo->PciAddressMapInfo,
+ sizeof (PlatformRepo->PciAddressMapInfo),
+ ARRAY_SIZE (PlatformRepo->PciAddressMapInfo),
+ Token,
+ GetPciAddressMapInfo,
+ CmObject
+ );
+ break;
+
+ case EArmObjPciInterruptMapInfo:
+ Status = HandleCmObjectRefByToken (
+ This,
+ CmObjectId,
+ PlatformRepo->PciInterruptMapInfo,
+ sizeof (PlatformRepo->PciInterruptMapInfo),
+ ARRAY_SIZE (PlatformRepo->PciInterruptMapInfo),
+ Token,
+ GetPciInterruptMapInfo,
+ CmObject
+ );
+ break;
+
default: {
Status = EFI_NOT_FOUND;
DEBUG ((
diff --git a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.h b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.h
index 1bc242bc9d85..5b5e62427f2b 100644
--- a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.h
+++ b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.h
@@ -90,6 +90,21 @@ extern CHAR8 ssdtpci_aml_code[];
(WritePolicy << 4) \
)
+/** PCI space codes.
+*/
+#define PCI_SS_CONFIG 0
+#define PCI_SS_IO 1
+#define PCI_SS_M32 2
+#define PCI_SS_M64 3
+
+/** Count of PCI address-range mapping struct.
+*/
+#define PCI_ADDRESS_MAP_COUNT 3
+
+/** Count of PCI device legacy interrupt mapping struct.
+*/
+#define PCI_INTERRUPT_MAP_COUNT 4
+
/** A function that prepares Configuration Manager Objects for returning.
@param [in] This Pointer to the Configuration Manager Protocol.
@@ -226,6 +241,18 @@ typedef struct PlatformRepositoryInfo {
/// PCI configuration space information
CM_ARM_PCI_CONFIG_SPACE_INFO PciConfigInfo;
+ // PCI address-range mapping references
+ CM_ARM_OBJ_REF PciAddressMapRef[PCI_ADDRESS_MAP_COUNT];
+
+ // PCI address-range mapping information
+ CM_ARM_PCI_ADDRESS_MAP_INFO PciAddressMapInfo[PCI_ADDRESS_MAP_COUNT];
+
+ // PCI device legacy interrupts mapping references
+ CM_ARM_OBJ_REF PciInterruptMapRef[PCI_INTERRUPT_MAP_COUNT];
+
+ // PCI device legacy interrupts mapping information
+ CM_ARM_PCI_INTERRUPT_MAP_INFO PciInterruptMapInfo[PCI_INTERRUPT_MAP_COUNT];
+
/// GIC MSI Frame information
CM_ARM_GIC_MSI_FRAME_INFO GicMsiFrameInfo;
diff --git a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
index 7ca134d6674b..91bffe8d5d82 100644
--- a/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
+++ b/Platform/ARM/JunoPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
@@ -24,7 +24,6 @@ [Sources]
ConfigurationManager.c
AslTables/Dsdt.asl
AslTables/SsdtJunoUsb.asl
- AslTables/SsdtPci.asl
[Packages]
ArmPkg/ArmPkg.dec
--
2.25.1
next prev parent reply other threads:[~2022-04-27 15:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-27 14:59 [PATCH edk2-platforms v1 0/3] Enable PCI/CPU topology generation for Juno PierreGondois
2022-04-27 14:59 ` [PATCH edk2-platforms v1 1/3] Platform/ARM: Juno: Generate ASL description of CPU topology PierreGondois
2022-07-18 13:25 ` Sami Mujawar
2022-07-18 13:30 ` PierreGondois
2022-04-27 14:59 ` [PATCH edk2-platforms v1 2/3] Platform/ARM: Juno: Print debug values in right order PierreGondois
2022-07-18 13:26 ` Sami Mujawar
2022-04-27 14:59 ` PierreGondois [this message]
2022-07-18 14:02 ` [PATCH edk2-platforms v1 3/3] Platform/ARM: Juno: Generate ASL description of a PCIe bus Sami Mujawar
2022-04-29 13:35 ` [edk2-devel] [PATCH edk2-platforms v1 0/3] Enable PCI/CPU topology generation for Juno Ard Biesheuvel
2022-04-29 13:39 ` PierreGondois
2022-04-29 13:42 ` Ard Biesheuvel
2022-07-18 16:25 ` Sami Mujawar
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