[edk2-devel] [PATCH 4/6] MdePkg: Add gEfiCpu2ProtocolGuid and header file

[Gao, Zhichao]

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.gao at intel.com>; devel at edk2.groups.io
> Cc: Sean Brogan <sean.brogan at microsoft.com>; Kinney, Michael D
> <michael.d.kinney at intel.com>; Michael Turner
> <Michael.Turner at microsoft.com>; Bret Barkelew
> <Bret.Barkelew at 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 at edk2.groups.io
> >Cc: Sean Brogan <sean.brogan at microsoft.com>; Kinney, Michael D
> ><michael.d.kinney at intel.com>; Gao, Liming <liming.gao at intel.com>;
> >Michael Turner <Michael.Turner at microsoft.com>; Bret Barkelew
> ><Bret.Barkelew at microsoft.com>
> >Subject: [PATCH 4/6] MdePkg: Add gEfiCpu2ProtocolGuid and header file
> >
> >From: Sean Brogan <sean.brogan at 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.kinney at intel.com>
> >Cc: Liming Gao <liming.gao at intel.com>
> >Cc: Sean Brogan <sean.brogan at microsoft.com>
> >Cc: Michael Turner <Michael.Turner at microsoft.com>
> >Cc: Bret Barkelew <Bret.Barkelew at microsoft.com>
> >Signed-off-by: Zhichao Gao <zhichao.gao at 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


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