From: jhugo@codeaurora.org (Jeffrey Hugo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] efi/arm64: unmap the kernel during runtime service calls
Date: Mon, 29 Jan 2018 07:51:41 -0700 [thread overview]
Message-ID: <bdba264b-6619-6e9f-2849-d9d82a820ab0@codeaurora.org> (raw)
In-Reply-To: <20180125103131.19168-1-ard.biesheuvel@linaro.org>
On 1/25/2018 3:31 AM, Ard Biesheuvel wrote:
> Note that capsule update has been omitted. This is a bit involved, and
> I'd rather get some feedback before burning too many cycles on that. All
> other services should be functional, with the caveat that EFI variable
> names are now limited to 1024 [wide] characters, and UEFI variables
> themselves to 64 KB.
>
I'm curious, why these limitations?
We don't have any concern about the name length limitation at this time,
but the variable size one is concerning.
We have a feature which creates a variable greater than 64KB that we
want to utilize from Linux. The size limitation would seem to prevent that.
--
Jeffrey Hugo
Qualcomm Datacenter Technologies as an affiliate of Qualcomm
Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2018-01-29 14:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-25 10:31 [PATCH 0/4] efi/arm64: unmap the kernel during runtime service calls Ard Biesheuvel
2018-01-25 10:31 ` [PATCH 1/4] efi: arm64: Check whether x18 is preserved by runtime services calls Ard Biesheuvel
2018-01-26 15:05 ` Will Deacon
2018-01-25 10:31 ` [PATCH 2/4] efi/arm64: map the stack and entry wrapper into the UEFI page tables Ard Biesheuvel
2018-01-26 16:57 ` Will Deacon
2018-01-26 17:03 ` Ard Biesheuvel
2018-01-26 17:09 ` Will Deacon
2018-01-25 10:31 ` [PATCH 3/4] efi/arm64: marshall runtime services arguments via buffer in TTBR0 Ard Biesheuvel
2018-01-25 10:31 ` [PATCH 4/4] efi/arm64: unmap the kernel while executing UEFI services Ard Biesheuvel
2018-01-26 17:05 ` Will Deacon
2018-01-26 17:06 ` Ard Biesheuvel
2018-01-26 17:10 ` Will Deacon
2018-01-29 14:51 ` Jeffrey Hugo [this message]
2018-01-29 14:55 ` [PATCH 0/4] efi/arm64: unmap the kernel during runtime service calls Ard Biesheuvel
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