[edk2-devel] [PATCH v3 04/10] UefiCpuPkg: add CPU ejection support
Ankur Arora
ankur.a.arora at oracle.com
Fri Jan 15 07:45:27 UTC 2021
Define CPU_HOT_EJECT_DATA and add PCD PcdCpuHotEjectDataAddress,
which would be used to share CPU ejection state between
PiSmmCpuDxeSmm and OvmfPkg/CpuHotPlugSmm.
Cc: Eric Dong <eric.dong at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Cc: Laszlo Ersek <lersek at redhat.com>
Cc: Rahul Kumar <rahul1.kumar at intel.com>
Cc: Boris Ostrovsky <boris.ostrovsky at oracle.com>
Cc: Aaron Young <aaron.young at oracle.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3132
Signed-off-by: Ankur Arora <ankur.a.arora at oracle.com>
---
UefiCpuPkg/Include/CpuHotPlugData.h | 21 +++++++++++++++++++++
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf | 1 +
UefiCpuPkg/UefiCpuPkg.dec | 5 +++++
UefiCpuPkg/UefiCpuPkg.uni | 4 ++++
4 files changed, 31 insertions(+)
diff --git a/UefiCpuPkg/Include/CpuHotPlugData.h b/UefiCpuPkg/Include/CpuHotPlugData.h
index 6321a149fa52..86f964550655 100644
--- a/UefiCpuPkg/Include/CpuHotPlugData.h
+++ b/UefiCpuPkg/Include/CpuHotPlugData.h
@@ -2,6 +2,7 @@
Definition for a structure sharing information for CPU hot plug.
Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2021, Oracle Corporation.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -24,4 +25,24 @@ typedef struct {
UINT32 SmrrSize;
} CPU_HOT_PLUG_DATA;
+typedef
+VOID
+(EFIAPI *CPU_HOT_EJECT_FN)(
+ IN UINTN ProcessorNum
+ );
+
+#define CPU_EJECT_INVALID (MAX_UINT64)
+#define CPU_EJECT_WORKER (MAX_UINT64-1)
+
+#define CPU_HOT_EJECT_DATA_REVISION_1 0x00000001
+
+typedef struct {
+ UINT32 Revision; // Used for version identification for this structure
+ UINT32 ArrayLength; // The entries number of the following ApicId array and SmBase array
+
+ UINT64 *ApicIdMap; // Pointer to CpuIndex->ApicId map. Holds APIC IDs for pending ejects
+ CPU_HOT_EJECT_FN Handler; // Handler for CPU ejection
+ UINT64 Reserved;
+} CPU_HOT_EJECT_DATA;
+
#endif
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf
index 76b146299679..f79c874d74f1 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf
@@ -131,6 +131,7 @@
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmApSyncTimeout ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuS3DataAddress ## SOMETIMES_CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuHotPlugDataAddress ## SOMETIMES_PRODUCES
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuHotEjectDataAddress ## SOMETIMES_PRODUCES
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmCodeAccessCheckEnable ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmSyncMode ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmShadowStackSize ## SOMETIMES_CONSUMES
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index d83c084467b3..704ccc05f662 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -339,6 +339,11 @@
# @ValidList 0x80000001 | 0
gUefiCpuPkgTokenSpaceGuid.PcdCpuHotPlugDataAddress|0x0|UINT64|0x60000011
+ ## Contains the pointer to a CPU Hot Eject Data structure if CPU hot-plug is supported.
+ # @Prompt The pointer to CPU Hot Eject Data.
+ # @ValidList 0x80000001 | 0
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuHotEjectDataAddress|0x0|UINT64|0x60000017
+
## Indicates processor feature capabilities, each bit corresponding to a specific feature.
# @Prompt Processor feature capabilities.
# @ValidList 0x80000001 | 0
diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni
index 219c1963bf08..b1721f256632 100644
--- a/UefiCpuPkg/UefiCpuPkg.uni
+++ b/UefiCpuPkg/UefiCpuPkg.uni
@@ -140,6 +140,10 @@
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuHotPlugDataAddress_HELP #language en-US "Contains the pointer to a CPU Hot Plug Data structure if CPU hot-plug is supported."
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuHotEjectDataAddress_PROMPT #language en-US "The pointer to CPU Hot Eject Data"
+
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuHotEjectDataAddress_HELP #language en-US "Contains the pointer to a CPU Hot Eject Data structure if CPU hot-plug is supported."
+
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_PROMPT #language en-US "Number of reserved variable MTRRs"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuNumberOfReservedVariableMtrrs_HELP #language en-US "Specifies the number of variable MTRRs reserved for OS use."
--
2.9.3
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