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From: "gaoliming" <gaoliming@byosoft.com.cn>
To: <devel@edk2.groups.io>,
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Cc: "'Michael D Kinney'" <michael.d.kinney@intel.com>,
	"'Laszlo Ersek'" <lersek@redhat.com>
References: <20210318184504.2745112-1-ankur.a.arora@oracle.com>
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Date: Fri, 19 Mar 2021 09:04:36 +0800
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Ankur:
  Seemly, the patch is missing in this mail.=20

Thanks
Liming
> -----=D3=CA=BC=FE=D4=AD=BC=FE-----
> =B7=A2=BC=FE=C8=CB: devel@edk2.groups.io <devel@edk2.groups.io> =
=B4=FA=B1=ED Ankur Arora
> =B7=A2=CB=CD=CA=B1=BC=E4: 2021=C4=EA3=D4=C219=C8=D5 2:45
> =CA=D5=BC=FE=C8=CB: devel@edk2.groups.io
> =B3=AD=CB=CD: Ankur Arora <ankur.a.arora@oracle.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Michael D Kinney
> <michael.d.kinney@intel.com>; Laszlo Ersek <lersek@redhat.com>
> =D6=F7=CC=E2: [edk2-devel] [PATCH v2] MdePkg: use CpuPause() in =
CpuDeadLoop()
>=20
> CpuPause() might allow the CPU to go into a lower power state
> state while we spin.
>=20
> On X86, CpuPause() executes a PAUSE instruction which the Intel
> and AMD specs describe as follows:
>=20
> Intel:
>   "PAUSE: An additional function of the PAUSE instruction is to reduce
>   the power consumed by a processor while executing a spin loop. A
>   processor can execute a spin-wait loop extremely quickly, causing =
the
>   processor to consume a lot of power while it waits for the resource =
it
>   is spinning on to become available. Inserting a pause instruction in =
a
>   spin-wait loop greatly reduces the processorb