Date: Wed, 30 Sep 2020 18:19:08 +0100 From: Catalin Marinas <catalin.marinas@....com> To: Jonathan Cameron <Jonathan.Cameron@...wei.com> Cc: Ard Biesheuvel <ardb@...nel.org>, Linux ARM <linux-arm-kernel@...ts.infradead.org>, "Jason A . Donenfeld" <Jason@...c4.com>, Lorenzo Pieralisi <lorenzo.pieralisi@....com>, Kernel Hardening <kernel-hardening@...ts.openwall.com>, ACPI Devel Maling List <linux-acpi@...r.kernel.org>, Sudeep Holla <sudeep.holla@....com>, Will Deacon <will@...nel.org>, Linuxarm <linuxarm@...wei.com> Subject: Re: [PATCH v3 1/2] arm64/acpi: disallow AML memory opregions to access kernel memory Hi Jonathan, On Wed, Sep 30, 2020 at 10:27:22AM +0100, Jonathan Cameron wrote: > On Tue, 29 Sep 2020 11:29:48 +0200 Ard Biesheuvel <ardb@...nel.org> wrote: > > Could you try the patch below? Since the memory holding the tables is > > already memblock_reserve()d, we can just mark it NOMAP, and permit r/o > > remapping of NOMAP regions. > > Looks good. Thanks. > > Tested-by: Jonathan Cameron <Jonathan.Cameron@...wei.com> > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com> Could you please try the updated patch that Ard posted. There are a few minor differences: https://firstname.lastname@example.org/ Thanks. -- Catalin
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