From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Tremer <michael.tremer@ipfire.org>
To: development@lists.ipfire.org
Subject: Re: [PATCH 1/3] linux: Enable Indirect Branch Tracking by default
Date: Mon, 10 Jul 2023 18:33:16 +0100
Message-ID: <F748BEDF-B37B-44EF-B16F-7C3AC1739CBE@ipfire.org>
In-Reply-To: <d753cd03-007f-d78c-848e-cc72459fded8@ipfire.org>
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Hello Peter,

I am happy with this going in, but we should also enable this in user space, =
too.

I will take care of this and post a patch soon. I don=E2=80=99t think all fit=
s into one update, so I believe we should release this and follow up with the=
 user space whenever suitable.

Best,
-Michael

Reviewed-by: Michael Tremer <michael.tremer(a)ipfire.org>

> On 9 Jul 2023, at 15:55, Peter M=C3=BCller <peter.mueller(a)ipfire.org> wro=
te:
>=20
> This became upstream default (see
> https://www.phoronix.com/news/Linux-IBT-By-Default-Tip for IT news media
> coverage), and given its security-relevance, we should adopt this
> setting as well.
>=20
> Signed-off-by: Peter M=C3=BCller <peter.mueller(a)ipfire.org>
> ---
> config/kernel/kernel.config.x86_64-ipfire | 2 +-
> config/rootfiles/common/x86_64/linux      | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>=20
> diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kern=
el.config.x86_64-ipfire
> index 6c880ca8a..d70a19656 100644
> --- a/config/kernel/kernel.config.x86_64-ipfire
> +++ b/config/kernel/kernel.config.x86_64-ipfire
> @@ -431,7 +431,7 @@ CONFIG_X86_PAT=3Dy
> CONFIG_ARCH_USES_PG_UNCACHED=3Dy
> CONFIG_X86_UMIP=3Dy
> CONFIG_CC_HAS_IBT=3Dy
> -# CONFIG_X86_KERNEL_IBT is not set
> +CONFIG_X86_KERNEL_IBT=3Dy
> CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=3Dy
> CONFIG_X86_INTEL_TSX_MODE_OFF=3Dy
> # CONFIG_X86_INTEL_TSX_MODE_ON is not set
> diff --git a/config/rootfiles/common/x86_64/linux b/config/rootfiles/common=
/x86_64/linux
> index fb4ea3a6f..6d00654af 100644
> --- a/config/rootfiles/common/x86_64/linux
> +++ b/config/rootfiles/common/x86_64/linux
> @@ -11318,6 +11318,7 @@ etc/modprobe.d/ipv6.conf
> #lib/modules/KVER-ipfire/build/include/config/X86_INTERNODE_CACHE_SHIFT
> #lib/modules/KVER-ipfire/build/include/config/X86_IOPL_IOPERM
> #lib/modules/KVER-ipfire/build/include/config/X86_IO_APIC
> +#lib/modules/KVER-ipfire/build/include/config/X86_KERNEL_IBT
> #lib/modules/KVER-ipfire/build/include/config/X86_L1_CACHE_SHIFT
> #lib/modules/KVER-ipfire/build/include/config/X86_LOCAL_APIC
> #lib/modules/KVER-ipfire/build/include/config/X86_MCE
> --=20
> 2.35.3


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