Re: [PATCH v7 00/17] Add support for Clang LTO

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On Fri, Nov 20, 2020 at 2:30 AM Ard Biesheuvel <ardb@xxxxxxxxxx> wrote:
>
> On Thu, 19 Nov 2020 at 00:42, Nick Desaulniers <ndesaulniers@xxxxxxxxxx> wrote:
> >
> > Thanks for continuing to drive this series Sami.  For the series,
> >
> > Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> >
> > I did virtualized boot tests with the series applied to aarch64
> > defconfig without CONFIG_LTO, with CONFIG_LTO_CLANG, and a third time
> > with CONFIG_THINLTO.  If you make changes to the series in follow ups,
> > please drop my tested by tag from the modified patches and I'll help
> > re-test.  Some minor feedback on the Kconfig change, but I'll post it
> > off of that patch.
> >
>
> When you say 'virtualized" do you mean QEMU on x86? Or actual
> virtualization on an AArch64 KVM host?

aarch64 guest on x86_64 host.  If you have additional configurations
that are important to you, additional testing help would be
appreciated.

>
> The distinction is important here, given the potential impact of LTO
> on things that QEMU simply does not model when it runs in TCG mode on
> a foreign host architecture.

-- 
Thanks,
~Nick Desaulniers



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