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From: Julien Grall <julien.grall@citrix.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Brijesh Singh <brijeshkumar.singh@amd.com>
Cc: xen-devel@lists.xen.org
Subject: Re: ARM64 EFI runtime
Date: Tue, 13 Oct 2015 17:20:55 +0100	[thread overview]
Message-ID: <561D2F67.3030000@citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1510131548310.1179@kaball.uk.xensource.com>

On 13/10/15 15:55, Stefano Stabellini wrote:
> Hi Brijesh,
> 
> passing EFI tables to dom0 is still under work by Shannon, see:
> http://marc.info/?l=xen-devel&m=144321258920213. For now you could
> simply reuse the existing linux uefi device tree nodes, see
> Documentation/arm/uefi.txt and the existing acpi patch series for Xen,
> which also introduces passing efi tables to dom0:
> http://marc.info/?l=xen-devel&m=143189314630953.
> 
> Once dom0 knows about efi, then it is just a matter of enabling the
> existing PV runtime services on arm64, see drivers/xen/efi.c.

That's not true. There is work to do in Xen in order to support efi
runtime. The hypercall to call runtime services (XENPF_efi_runtime_call)
is not plumbed and most of the code in common/efi/runtime.c is not built.

Regards,

-- 
Julien Grall

      reply	other threads:[~2015-10-13 16:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-12 18:40 ARM64 EFI runtime Brijesh Singh
2015-10-13  9:57 ` Stefano Stabellini
2015-10-13 14:31   ` Brijesh Singh
2015-10-13 14:55     ` Stefano Stabellini
2015-10-13 16:20       ` Julien Grall [this message]

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