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From: "Tiger Liu(BJ-RD)" <tigerliu@zhaoxin.com>
To: "devel@edk2.groups.io" <devel@edk2.groups.io>
Subject: [edk2-devel] MP Services Protocol : Support Hyper threading or not
Date: Mon, 22 Feb 2021 07:08:55 +0000	[thread overview]
Message-ID: <03f9e675800143189bc59fab08865256@zhaoxin.com> (raw)

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Dear All:
I have a question about MP Services Protocol.
Does it support Hyper-threading technology?

For example:
A Quad-cores CPU(with HT feature support), actually it is equal to 8 logical cores.
Take assumption 8 logical cores are all healthy and being enabled.

So:

1.      Will EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors()return total 8 logical processor cores?

2.      Will EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() make all 8 logical cores do some tasks simultaneously?

Thanks


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             reply	other threads:[~2021-02-22  7:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-22  7:08 Tiger Liu(BJ-RD) [this message]
2021-02-22 10:39 ` [edk2-devel] MP Services Protocol : Support Hyper threading or not Laszlo Ersek
2021-02-23  1:17   ` fanjianfeng
2021-02-23 17:29     ` Laszlo Ersek
  -- strict thread matches above, loose matches on Subject: below --
2021-02-23  4:49 Tiger Liu(BJ-RD)

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