From mboxrd@z Thu Jan 1 00:00:00 1970 From: jhugo@codeaurora.org (Jeffrey Hugo) Date: Mon, 29 Jan 2018 07:51:41 -0700 Subject: [PATCH 0/4] efi/arm64: unmap the kernel during runtime service calls In-Reply-To: <20180125103131.19168-1-ard.biesheuvel@linaro.org> References: <20180125103131.19168-1-ard.biesheuvel@linaro.org> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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.