I have found it in UEFP spec and PI spec. It is not defined in these specs. So I think maybe no spec has already defined it.
Thanks, Zhichao > -----Original Message----- > From: Gao, Liming > Sent: Friday, May 24, 2019 1:20 PM > To: Gao, Zhichao <zhichao....@intel.com>; devel@edk2.groups.io > Cc: Sean Brogan <sean.bro...@microsoft.com>; Kinney, Michael D > <michael.d.kin...@intel.com>; Michael Turner > <michael.tur...@microsoft.com>; Bret Barkelew > <bret.barke...@microsoft.com> > Subject: RE: [PATCH 4/6] MdePkg: Add gEfiCpu2ProtocolGuid and header file > > Zhichao: > Which spec defines Cpu2 protocol? > > Thanks > Liming > >-----Original Message----- > >From: Gao, Zhichao > >Sent: Friday, May 24, 2019 1:05 PM > >To: devel@edk2.groups.io > >Cc: Sean Brogan <sean.bro...@microsoft.com>; Kinney, Michael D > ><michael.d.kin...@intel.com>; Gao, Liming <liming....@intel.com>; > >Michael Turner <michael.tur...@microsoft.com>; Bret Barkelew > ><bret.barke...@microsoft.com> > >Subject: [PATCH 4/6] MdePkg: Add gEfiCpu2ProtocolGuid and header file > > > >From: Sean Brogan <sean.bro...@microsoft.com> > > > >REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1400 > > > >Add gEfiCpu2ProtocolGuid to MdePkg.dec. > >Add the header file of Cpu2 protocol: it has one interface to enable > >interrupt and put cpu to sleep to wait for an interrupt. > > > >Cc: Michael D Kinney <michael.d.kin...@intel.com> > >Cc: Liming Gao <liming....@intel.com> > >Cc: Sean Brogan <sean.bro...@microsoft.com> > >Cc: Michael Turner <michael.tur...@microsoft.com> > >Cc: Bret Barkelew <bret.barke...@microsoft.com> > >Signed-off-by: Zhichao Gao <zhichao....@intel.com> > >--- > > MdePkg/Include/Protocol/Cpu2.h | 43 > >++++++++++++++++++++++++++++++++++ > > MdePkg/MdePkg.dec | 3 +++ > > 2 files changed, 46 insertions(+) > > create mode 100644 MdePkg/Include/Protocol/Cpu2.h > > > >diff --git a/MdePkg/Include/Protocol/Cpu2.h > >b/MdePkg/Include/Protocol/Cpu2.h new file mode 100644 index > >0000000000..cacd948140 > >--- /dev/null > >+++ b/MdePkg/Include/Protocol/Cpu2.h > >@@ -0,0 +1,43 @@ > >+/** @file > >+ CPU2 Protocol > >+ > >+ This code abstracts the DXE core from processor implementation details. > >+ > >+ Copyright (c) 2006 - 2018, Microsoft Corporation. All rights > >+ reserved.<BR> > >+ > >+ SPDX-License-Identifier: BSD-2-Clause-Patent > >+ > >+**/ > >+ > >+#ifndef __PROTOCOL_CPU2_H__ > >+#define __PROTOCOL_CPU2_H__ > >+ > >+#include <Uefi.h> > >+ > >+typedef struct _EFI_CPU2_PROTOCOL EFI_CPU2_PROTOCOL; > >+ > >+ > >+/** > >+ This function enables CPU interrupts and then waits for an interrupt > >+to > >arrive. > >+ > >+ @param This The EFI_CPU2_PROTOCOL instance. > >+ > >+ @retval EFI_SUCCESS Interrupts are enabled on the processor. > >+ @retval EFI_DEVICE_ERROR Interrupts could not be enabled on the > >processor. > >+ > >+**/ > >+typedef > >+EFI_STATUS > >+(EFIAPI *EFI_CPU_ENABLE_AND_WAIT_FOR_INTERRUPT)( > >+ IN EFI_CPU2_PROTOCOL *This > >+ ); > >+ > >+// > >+// The EFI_CPU2_PROTOCOL is used to abstract processor-specific > >+functions > >from the DXE > >+// Foundation. > >+// > >+struct _EFI_CPU2_PROTOCOL { > >+ EFI_CPU_ENABLE_AND_WAIT_FOR_INTERRUPT > >EnableAndWaitForInterrupt; > >+}; > >+ > >+#endif > >diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index > >6c563375ee..e8c6939849 100644 > >--- a/MdePkg/MdePkg.dec > >+++ b/MdePkg/MdePkg.dec > >@@ -1803,6 +1803,9 @@ > > ## Include/Protocol/ShellDynamicCommand.h > > gEfiShellDynamicCommandProtocolGuid = { 0x3c7200e9, 0x005f, 0x4ea4, > >{0x87, 0xde, 0xa3, 0xdf, 0xac, 0x8a, 0x27, 0xc3 }} > > > >+ ## Include/Protocol/Cpu2.h > >+ gEfiCpu2ProtocolGuid = { 0x55198405, 0x26C0, 0x4765, > >{0x8B, > 0x7D, > >0xBE, 0x1D, 0xF5, 0xF9, 0x97, 0x12 }} > >+ > > # > > # [Error.gEfiMdePkgTokenSpaceGuid] > > # 0x80000001 | Invalid value provided. > >-- > >2.21.0.windows.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#41312): https://edk2.groups.io/g/devel/message/41312 Mute This Topic: https://groups.io/mt/31741731/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
