Define CPU_HOT_EJECT_DATA and add PCD PcdCpuHotEjectDataAddress, which will be used to share CPU ejection state between OvmfPkg/CpuHotPlugSmm and PiSmmCpuDxeSmm.
Cc: Laszlo Ersek <ler...@redhat.com> Cc: Jordan Justen <jordan.l.jus...@intel.com> Cc: Ard Biesheuvel <ard.biesheu...@arm.com> Cc: Igor Mammedov <imamm...@redhat.com> Cc: Boris Ostrovsky <boris.ostrov...@oracle.com> Cc: Aaron Young <aaron.yo...@oracle.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3132 Signed-off-by: Ankur Arora <ankur.a.ar...@oracle.com> --- OvmfPkg/OvmfPkg.dec | 10 +++++++++ OvmfPkg/CpuHotplugSmm/CpuHotplugSmm.inf | 1 + OvmfPkg/Include/Library/CpuHotEjectData.h | 35 +++++++++++++++++++++++++++++++ 3 files changed, 46 insertions(+) create mode 100644 OvmfPkg/Include/Library/CpuHotEjectData.h diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index 4348bb45c64a..1a2debb821d7 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -106,6 +106,10 @@ [LibraryClasses] # XenPlatformLib|Include/Library/XenPlatformLib.h + ## @libraryclass Share CPU hot-eject state + # + CpuHotEjectData|Include/Library/CpuHotEjectData.h + [Guids] gUefiOvmfPkgTokenSpaceGuid = {0x93bb96af, 0xb9f2, 0x4eb8, {0x94, 0x62, 0xe0, 0xba, 0x74, 0x56, 0x42, 0x36}} gEfiXenInfoGuid = {0xd3b46f3b, 0xd441, 0x1244, {0x9a, 0x12, 0x0, 0x12, 0x27, 0x3f, 0xc1, 0x4d}} @@ -352,6 +356,12 @@ [PcdsDynamic, PcdsDynamicEx] # This PCD is only accessed if PcdSmmSmramRequire is TRUE (see below). gUefiOvmfPkgTokenSpaceGuid.PcdQ35SmramAtDefaultSmbase|FALSE|BOOLEAN|0x34 + ## This PCD adds a communication channel between PiSmmCpuDxeSmm and + # CpuHotplugSmm. + # + # Only accessed if PcdCpuHotPlugSupport is TRUE + gUefiOvmfPkgTokenSpaceGuid.PcdCpuHotEjectDataAddress|0|UINT64|0x46 + [PcdsFeatureFlag] gUefiOvmfPkgTokenSpaceGuid.PcdQemuBootOrderPciTranslation|TRUE|BOOLEAN|0x1c gUefiOvmfPkgTokenSpaceGuid.PcdQemuBootOrderMmioTranslation|FALSE|BOOLEAN|0x1d diff --git a/OvmfPkg/CpuHotplugSmm/CpuHotplugSmm.inf b/OvmfPkg/CpuHotplugSmm/CpuHotplugSmm.inf index 04322b0d7855..e08b572ef169 100644 --- a/OvmfPkg/CpuHotplugSmm/CpuHotplugSmm.inf +++ b/OvmfPkg/CpuHotplugSmm/CpuHotplugSmm.inf @@ -54,6 +54,7 @@ [Protocols] [Pcd] gUefiCpuPkgTokenSpaceGuid.PcdCpuHotPlugDataAddress ## CONSUMES + gUefiOvmfPkgTokenSpaceGuid.PcdCpuHotEjectDataAddress ## CONSUMES gUefiOvmfPkgTokenSpaceGuid.PcdQ35SmramAtDefaultSmbase ## CONSUMES [FeaturePcd] diff --git a/OvmfPkg/Include/Library/CpuHotEjectData.h b/OvmfPkg/Include/Library/CpuHotEjectData.h new file mode 100644 index 000000000000..b6fb629a1283 --- /dev/null +++ b/OvmfPkg/Include/Library/CpuHotEjectData.h @@ -0,0 +1,35 @@ +/** @file + Definition for a CPU hot-eject state sharing structure. + + Copyright (C) 2021, Oracle Corporation. + + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#ifndef _CPU_HOT_EJECT_DATA_H_ +#define _CPU_HOT_EJECT_DATA_H_ + +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 of + // this structure + UINT32 ArrayLength; // Entries in the ApicIdMap array + + UINT64 *ApicIdMap; // Pointer to CpuIndex->ApicId map for + // pending hot-ejects + CPU_HOT_EJECT_FN Handler; // Handler to do the CPU ejection + + UINT64 Reserved; +} CPU_HOT_EJECT_DATA; + +#endif /* _CPU_HOT_EJECT_DATA_H_ */ -- 2.9.3 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#70871): https://edk2.groups.io/g/devel/message/70871 Mute This Topic: https://groups.io/mt/80199916/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
