From: Catalin Marinas <catalin.marinas@arm.com>
To: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
"Jason A . Donenfeld" <Jason@zx2c4.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Kernel Hardening <kernel-hardening@lists.openwall.com>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Will Deacon <will@kernel.org>, Linuxarm <linuxarm@huawei.com>
Subject: Re: [PATCH v3 1/2] arm64/acpi: disallow AML memory opregions to access kernel memory
Date: Wed, 30 Sep 2020 18:19:08 +0100 [thread overview]
Message-ID: <20200930171908.GA1732@gaia> (raw)
In-Reply-To: <20200930102722.00000bff@huawei.com>
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@kernel.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@huawei.com>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Could you please try the updated patch that Ard posted. There are a few
minor differences:
https://lore.kernel.org/linux-acpi/20200929132522.18067-1-ardb@kernel.org/
Thanks.
--
Catalin
next prev parent reply other threads:[~2020-09-30 17:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-26 15:58 [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access Ard Biesheuvel
2020-06-26 15:58 ` [PATCH v3 1/2] arm64/acpi: disallow AML memory opregions to access kernel memory Ard Biesheuvel
2020-09-28 16:02 ` Jonathan Cameron
2020-09-28 16:49 ` Ard Biesheuvel
2020-09-28 17:17 ` Jonathan Cameron
2020-09-29 9:29 ` Ard Biesheuvel
2020-09-30 9:27 ` Jonathan Cameron
2020-09-30 17:19 ` Catalin Marinas [this message]
2020-06-26 15:58 ` [PATCH v3 2/2] arm64/acpi: disallow writeable AML opregion mapping for EFI code regions Ard Biesheuvel
2021-02-06 3:11 ` Shawn Guo
2021-02-06 8:10 ` Ard Biesheuvel
2021-02-06 10:17 ` Ard Biesheuvel
2021-02-06 10:45 ` Shawn Guo
2020-07-08 16:17 ` [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access Ard Biesheuvel
2020-07-09 8:42 ` Lorenzo Pieralisi
2020-07-14 19:52 ` Catalin Marinas
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