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From: Pasha Tatashin <pasha.tatashin@soleen.com>
To: Will Deacon <will@kernel.org>
Cc: James Morris <jmorris@namei.org>, Sasha Levin <sashal@kernel.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	kexec mailing list <kexec@lists.infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
	Vladimir Murzin <vladimir.murzin@arm.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	linux-mm <linux-mm@kvack.org>,
	Mark Rutland <mark.rutland@arm.com>,
	steve.capper@arm.com, rfontana@redhat.com,
	Thomas Gleixner <tglx@linutronix.de>,
	Selin Dag <selindag@gmail.com>,
	Tyler Hicks <tyhicks@linux.microsoft.com>,
	Pingfan Liu <kernelfans@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	madvenka@linux.microsoft.com
Subject: Re: [PATCH v17 05/15] arm64: kexec: skip relocation code for inplace kexec
Date: Wed, 29 Sep 2021 22:44:23 -0400	[thread overview]
Message-ID: <CA+CK2bCcawYWO+EjLbSciLQaM3g4eUWQN0uokNs1zN+An9KYSA@mail.gmail.com> (raw)
In-Reply-To: <20210929121336.GB21631@willie-the-truck>

Hi Will,

> > +             cpu_install_idmap();
> > +             restart = (void *)__pa_symbol(function_nocfi(__cpu_soft_restart));
> > +             restart(is_hyp_nvhe(), kimage->start, kimage->arch.dtb_mem,
> > +                     0, 0);
>
> Why can't you call:
>
>         cpu_soft_restart(kimage->start, kimage->arch.dtb_mem, 0, 0);
>
> here instead of open-coding it?

This is part of a cleanup to remove cpu_soft_restart() wrapper and the
header file that contains it. The wrapper is simple enough and has
only one call site. It makes more sense to do what is needed directly
from machine_kexec().

Pasha

  reply	other threads:[~2021-09-30  2:45 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-16 23:13 [PATCH v17 00/15] arm64: MMU enabled kexec relocation Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 01/15] arm64: kernel: add helper for booted at EL2 and not VHE Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 02/15] arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 03/15] arm64: hibernate: abstract ttrb0 setup function Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 04/15] arm64: kexec: flush image and lists during kexec load time Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 05/15] arm64: kexec: skip relocation code for inplace kexec Pasha Tatashin
2021-09-29 12:13   ` Will Deacon
2021-09-30  2:44     ` Pasha Tatashin [this message]
2021-09-16 23:13 ` [PATCH v17 06/15] arm64: kexec: Use dcache ops macros instead of open-coding Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 07/15] arm64: kexec: pass kimage as the only argument to relocation function Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 08/15] arm64: kexec: configure EL2 vectors for kexec Pasha Tatashin
2021-09-29 12:35   ` Will Deacon
2021-09-30  3:54     ` Pasha Tatashin
2021-09-30  8:16       ` Will Deacon
2021-09-30 11:59         ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 09/15] arm64: kexec: relocate in EL1 mode Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 10/15] arm64: kexec: use ld script for relocation function Pasha Tatashin
2021-09-29 12:45   ` Will Deacon
2021-09-30  3:57     ` Pasha Tatashin
2021-09-30  4:08     ` Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 11/15] arm64: kexec: install a copy of the linear-map Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 12/15] arm64: kexec: keep MMU enabled during kexec relocation Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 13/15] arm64: kexec: remove the pre-kexec PoC maintenance Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 14/15] arm64: kexec: remove cpu-reset.h Pasha Tatashin
2021-09-16 23:13 ` [PATCH v17 15/15] arm64: trans_pgd: remove trans_pgd_map_page() Pasha Tatashin
2021-09-29 16:43   ` Catalin Marinas
2021-09-30  4:12     ` Pasha Tatashin
2021-09-29 12:49 ` [PATCH v17 00/15] arm64: MMU enabled kexec relocation Will Deacon
2021-09-30  4:13   ` Pasha Tatashin
2021-09-29 17:21 ` Catalin Marinas
2021-09-30  4:13   ` Pasha Tatashin

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