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From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io
Subject: mmio mappings for runtime service
Date: Mon, 30 Aug 2021 12:23:50 +0200	[thread overview]
Message-ID: <20210830102350.z6rhkeebav4mziu2@sirius.home.kraxel.org> (raw)

  Hi,

What is the correct way to make sure runtime services can access
mmio registers, i.e. that there is a mapping in the page tables
for the mmio page needed?

Is that the job of the firmware?
Or should the OS calling the runtime service handle that?
In case of the latter: How does the OS figure which pages are needed?

thanks,
  Gerd


             reply	other threads:[~2021-08-30 10:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-30 10:23 Gerd Hoffmann [this message]
2021-08-30 13:01 ` [edk2-devel] mmio mappings for runtime service Yao, Jiewen
2021-08-30 16:26   ` Michael D Kinney

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