From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A53053009E1 for ; Fri, 17 Jul 2026 17:14:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784308478; cv=none; b=quQfNFkNWMSRi+3xXpwg3Wcu+fnGSCKkKUTC2CHBM1zQKIPc4xn1It1oGxa5efJ7WwjVHmTAyH/BUixuqWezN9mMovBLinjj3gY0GBwK8s/IAEGFhQ42c2qKA74aB1uSIz9hmeUJ8alceM8Tl3CKJZWKOq5/NqBCv+k+mSm2mXI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784308478; c=relaxed/simple; bh=xTBqwzpeNCp4Vd7DN90BXCeI4gjhovrE4lACf0GMy5s=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=X6xgooTEMPfIhBZHbfUOrCF+qS1J2LDIQfYryt216IvgxAKIYuJkh5ULFdZlzF+kmYC4/bzsZYcMQlqcftOGyb7GtHcNNhv14goMyjOiZ8yi/6vsyyAHHLmp2bFSC4sQqBe6DHya1Mq2BBL/zmACmGzSP5XdZELo0XRfCqfvF+U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Jka5/Nwd; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Jka5/Nwd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B6AF1F000E9; Fri, 17 Jul 2026 17:14:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784308477; bh=ShA8ha2RsOTrblPpWwY1VDb8OkXyTZdwulAiu6ek85M=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Jka5/NwdvOlxJIwP2LdUA6w2WBo7YHmE+elR9r2+FEtwniYjcyJexTiVOxphX2jXe gUa/ESM7HrtkpAeNqPGjg3W7XNJ/H9jE7yF1uSg0DkforttUjHNGLBwL72DdXHTUAM HfojhPSmoZ9G81oM4qyyF+MAktY47TgHcPlUeIYRWLEEYGTDZ+gbW4ay4HeAEDEnJg pA70r2uBcPgbnUkMk1w3OFecWpAmMAvasVjQtjWVQquE400P34qUVsewnoLEkO3Rwd MnICcWAr3ed2w8npV4EKjtcDDnceQ/iwm7vfbQVl4DlV0QayHsQlYHyNeyN45GVJXJ xuIcc0RJ12BnQ== Date: Fri, 17 Jul 2026 18:14:32 +0100 From: Mark Brown To: Arnd Bergmann Cc: Krzysztof Kozlowski , Anshuman Khandual , linux-arm-kernel@lists.infradead.org, Eric Biggers , Linus Walleij , Alexandre Belloni , linux-kernel@vger.kernel.org Subject: Re: [PATCH] arm64/defconfig: Restore built-in 9P rootfs support Message-ID: References: <20260716100243.1604526-1-anshuman.khandual@arm.com> <2fae9ef8-2ec1-48ed-9b25-8526db625732@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="wsbshrmdiP+ZxJyY" Content-Disposition: inline In-Reply-To: X-Cookie: Be cautious in your daily affairs. --wsbshrmdiP+ZxJyY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Jul 16, 2026 at 01:31:17PM +0200, Arnd Bergmann wrote: > On Thu, Jul 16, 2026, at 13:01, Krzysztof Kozlowski wrote: > > You fully control your software, so just build initramfs which is > > absolutely trivial and we all moved on to that for arm64 long time ago. > I still regularly boot KVM guests on arm64 without an initramfs, > but I just use 'make kvm_guest.config', which turns on all the > commonly used virtio drivers as built-in. I wouldn't call > 9pfs root trivial without initramfs, configuring 9p built-in > is already complicated enough. > So I agree we don't need this patch, but there is a trivial > workaround for Anshuman in case he wants to avoid doing this. Though watch out for the fact that this currently disables KVM which isn't so helpful on the multiple architectures that have nested guest support. I'll send a patch for that. --wsbshrmdiP+ZxJyY Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmpaYvcACgkQJNaLcl1U h9CRDQf+K1s1ACZMwVyZfy/tOmgrX1oNtzuiOrBuA2wF3OxkPirIIC6kBmbeQmvV 8gtU+Qpe9AlP8/8lfVQOG8VW70sQ1XtxHInm5a7UnbG+C4uuX5Qr9Pws/cfY6qUn pG3FSY5dnI6/eIvWjCKK4ExeWywWJ12gihEmqrTq+/ast9Va38iU7eVsygsLFxpj a8IqeYs4OqhFYsQeQg1C+LoNFGSfW0e1rXwLBekN/KC7CapvBUY9i4iHMbMHf9/P RKqdmFCMYYhVW1hCzQomIFGD7eb62S1unrgr76HvAQ7RXBmmZgRD9G8CKRV1Sfqs HGbmhzO/nEUeJQprCXIVu+ue0K4OYw== =82O0 -----END PGP SIGNATURE----- --wsbshrmdiP+ZxJyY--