Re: [GIT PULL v2 1/2] ARM: permit relative phys-to-virt alignment of >= 2 MiB - Russell King

From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Nicolas Pitre <nico@fluxnic.net>
Subject: Re: [GIT PULL v2 1/2] ARM: permit relative phys-to-virt alignment of >= 2 MiB
Date: Mon, 9 Nov 2020 09:30:17 +0000	[thread overview]
Message-ID: <20201109093017.GX1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <CAMj1kXG9M=q5XLzRN-T2Uh0ynVDK=yPxL4WqLazzUZGhitX-gQ@mail.gmail.com>

On Mon, Nov 09, 2020 at 08:20:13AM +0100, Ard Biesheuvel wrote:
> On Wed, 28 Oct 2020 at 21:48, Ard Biesheuvel <ardb@kernel.org> wrote:
> >
> > The following changes since commit 3650b228f83adda7e5ee532e2b90429c03f7b9ec:
> >
> >   Linux 5.10-rc1 (2020-10-25 15:14:11 -0700)
> >
> > are available in the Git repository at:
> >
> >   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git tags/arm-p2v-for-v5.11
> >
> > for you to fetch changes up to 9443076e4330a14ae2c6114307668b98a8293b77:
> >
> >   ARM: p2v: reduce p2v alignment requirement to 2 MiB (2020-10-28 16:59:43 +0100)
> >
> > Change since v1 pull request:
> > - rebase onto v5.10-rc1
> >
> > Cc: Russell King <linux+pull@armlinux.org.uk>
> > Cc: Nicolas Pitre <nico@fluxnic.net>
> > Cc: Linus Walleij <linus.walleij@linaro.org>
> >
> > ----------------------------------------------------------------
> > Implement the necessary changes in the ARM assembler boot code to permit
> > the relative alignment of the physical and the virtual addresses of the
> > kernel to be as little as 2 MiB, as opposed to the minimum of 16 MiB we
> > support today.
> >
> > Series was posted here, and reviewed by Nicolas Pitre and Linus Walleij:
> > https://lore.kernel.org/linux-arm-kernel/20200921154117.757-1-ardb@kernel.org/
> >
> > ----------------------------------------------------------------
> > Ard Biesheuvel (11):
> >       ARM: p2v: fix handling of LPAE translation in BE mode
> >       ARM: assembler: introduce adr_l, ldr_l and str_l macros
> >       ARM: module: add support for place relative relocations
> >       ARM: p2v: move patching code to separate assembler source file
> >       ARM: p2v: factor out shared loop processing
> >       ARM: p2v: factor out BE8 handling
> >       ARM: p2v: drop redundant 'type' argument from __pv_stub
> >       ARM: p2v: use relative references in patch site arrays
> >       ARM: p2v: simplify __fixup_pv_table()
> >       ARM: p2v: switch to MOVW for Thumb2 and ARM/LPAE
> >       ARM: p2v: reduce p2v alignment requirement to 2 MiB
> >
> >  arch/arm/Kconfig                 |   2 +-
> >  arch/arm/include/asm/assembler.h |  84 ++++++++++++++
> >  arch/arm/include/asm/elf.h       |   5 +
> >  arch/arm/include/asm/memory.h    |  57 +++++++---
> >  arch/arm/kernel/Makefile         |   1 +
> >  arch/arm/kernel/head.S           | 142 -----------------------
> >  arch/arm/kernel/module.c         |  20 +++-
> >  arch/arm/kernel/phys2virt.S      | 238 +++++++++++++++++++++++++++++++++++++++
> >  8 files changed, 387 insertions(+), 162 deletions(-)
> >  create mode 100644 arch/arm/kernel/phys2virt.S
> >
> 
> Ping?

Oh, you want /me/ to pull this? That's news to me, you didn't send the
pull requests /to/ me, you only copied me, so they went unread.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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