From: Mark Rutland <mark.rutland@arm.com>
To: David Howells <dhowells@redhat.com>
Cc: lukas@wunner.de, linux-efi@vger.kernel.org,
linux-security-module@vger.kernel.org, keyrings@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/6] arm/efi: Allow invocation of arbitrary runtime services [ver #2]
Date: Wed, 23 Nov 2016 13:38:55 +0000 [thread overview]
Message-ID: <20161123133855.GG24624@leverpostej> (raw)
In-Reply-To: <6125.1479901598@warthog.procyon.org.uk>
On Wed, Nov 23, 2016 at 11:46:38AM +0000, David Howells wrote:
> Mark Rutland <mark.rutland@arm.com> wrote:
> > On Wed, Nov 23, 2016 at 12:22:43AM +0000, David Howells wrote:
> > > Provide the ability to perform mixed-mode runtime service calls for arm in
> > > the same way that commit 0a637ee61247bd4bed9b2a07568ef7a1cfc76187
> > > ("x86/efi: Allow invocation of arbitrary boot services") provides the
> > > ability to invoke arbitrary boot services.
> >
> > I'm not sure I understand. On arm/arm64, "mixed-mode" simply isn't possible.
> >
> > I see we already call runtime services directly in efi_get_secureboot()
> > in drivers/firmware/efi/libstub/arm-stub.c.
> >
> > If this is just to provide a consistent API for the stub, please note
> > that.
>
> How about:
>
> arm/efi: Allow invocation of arbitrary runtime services
>
> efi_call_runtime() is provided for x86 to be able abstract mixed mode
> support. Provide this for ARM also so that common code work in mixed mode
> also.
That sounds good to me.
Thanks,
Mark.
next prev parent reply other threads:[~2016-11-23 13:39 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-23 0:22 [PATCH 0/6] efi: Pass secure boot mode to kernel [ver #2] David Howells
2016-11-23 0:22 ` [PATCH 1/6] x86/efi: Allow invocation of arbitrary runtime services " David Howells
2016-11-23 0:22 ` [PATCH 2/6] arm/efi: " David Howells
2016-11-23 9:34 ` David Howells
2016-11-23 10:35 ` Ard Biesheuvel
2016-11-23 11:51 ` David Howells
2016-11-23 10:27 ` Mark Rutland
2016-11-23 11:46 ` David Howells
2016-11-23 13:38 ` Mark Rutland [this message]
2016-11-23 0:22 ` [PATCH 3/6] efi: Add SHIM and image security database GUID definitions " David Howells
2016-11-23 0:22 ` [PATCH 4/6] efi: Get the secure boot status " David Howells
2016-11-23 9:31 ` Lukas Wunner
2016-11-23 9:53 ` David Howells
2016-11-23 10:10 ` Lukas Wunner
2016-11-23 10:47 ` Mark Rutland
2016-11-23 11:25 ` David Howells
2016-11-23 13:42 ` Mark Rutland
2016-11-23 14:13 ` David Howells
2016-11-23 14:24 ` Mark Rutland
2016-11-23 14:55 ` David Howells
2016-11-29 18:11 ` Matthew Garrett
2016-11-30 16:51 ` David Howells
2016-11-23 0:23 ` [PATCH 5/6] efi: Disable secure boot if shim is in insecure mode " David Howells
2016-11-23 13:38 ` Mark Rutland
2016-11-23 0:23 ` [PATCH 6/6] efi: Add EFI_SECURE_BOOT bit " David Howells
2016-11-23 9:27 ` Lukas Wunner
2016-11-23 10:07 ` David Howells
2016-11-23 10:09 ` David Howells
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