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From: Ingo Molnar <mingo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Yinghai Lu <yinghai@kernel.org>, Baoquan He <bhe@redhat.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Vivek Goyal <vgoyal@redhat.com>,
	Andy Lutomirski <luto@kernel.org>,
	lasse.collin@tukaani.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Young <dyoung@redhat.com>,
	kernel-hardening@lists.openwall.com,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 05/21] x86, boot: Calculate decompression size during boot not build
Date: Fri, 15 Apr 2016 10:12:23 +0200	[thread overview]
Message-ID: <20160415081223.GF30715@gmail.com> (raw)
In-Reply-To: <1460672954-32567-6-git-send-email-keescook@chromium.org>


* Kees Cook <keescook@chromium.org> wrote:

> From: Yinghai Lu <yinghai@kernel.org>
> 
> Currently z_extract_offset is calculated in boot/compressed/mkpiggy.c.

What is the high level meaning of z_extract_offset? I cannot tell without reading 
the code - and the point of changelogs is for them to be readable without having 
to read the code.

The rest of the changelog is pretty good.

Thanks,

	Ingo

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Yinghai Lu <yinghai@kernel.org>, Baoquan He <bhe@redhat.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Vivek Goyal <vgoyal@redhat.com>,
	Andy Lutomirski <luto@kernel.org>,
	lasse.collin@tukaani.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Young <dyoung@redhat.com>,
	kernel-hardening@lists.openwall.com,
	LKML <linux-kernel@vger.kernel.org>
Subject: [kernel-hardening] Re: [PATCH v5 05/21] x86, boot: Calculate decompression size during boot not build
Date: Fri, 15 Apr 2016 10:12:23 +0200	[thread overview]
Message-ID: <20160415081223.GF30715@gmail.com> (raw)
In-Reply-To: <1460672954-32567-6-git-send-email-keescook@chromium.org>


* Kees Cook <keescook@chromium.org> wrote:

> From: Yinghai Lu <yinghai@kernel.org>
> 
> Currently z_extract_offset is calculated in boot/compressed/mkpiggy.c.

What is the high level meaning of z_extract_offset? I cannot tell without reading 
the code - and the point of changelogs is for them to be readable without having 
to read the code.

The rest of the changelog is pretty good.

Thanks,

	Ingo

  reply	other threads:[~2016-04-15  8:12 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-14 22:28 [PATCH v5 00/21] x86, boot: KASLR cleanup and 64-bit improvements Kees Cook
2016-04-14 22:28 ` [kernel-hardening] " Kees Cook
2016-04-14 22:28 ` [PATCH v5 01/21] x86, KASLR: Remove unneeded boot_params argument Kees Cook
2016-04-14 22:28   ` [kernel-hardening] " Kees Cook
2016-04-15  7:29   ` Ingo Molnar
2016-04-15  7:29     ` [kernel-hardening] " Ingo Molnar
2016-04-15 18:55     ` Kees Cook
2016-04-15 18:55       ` [kernel-hardening] " Kees Cook
2016-04-14 22:28 ` [PATCH v5 02/21] x86, KASLR: Handle kernel relocation above 2G Kees Cook
2016-04-14 22:28   ` [kernel-hardening] " Kees Cook
2016-04-15  7:47   ` Ingo Molnar
2016-04-15  7:47     ` [kernel-hardening] " Ingo Molnar
2016-04-15 19:01     ` Kees Cook
2016-04-15 19:01       ` [kernel-hardening] " Kees Cook
2016-04-14 22:28 ` [PATCH v5 03/21] x86, KASLR: Drop CONFIG_RANDOMIZE_BASE_MAX_OFFSET Kees Cook
2016-04-14 22:28   ` [kernel-hardening] " Kees Cook
2016-04-15  8:07   ` Ingo Molnar
2016-04-15  8:07     ` [kernel-hardening] " Ingo Molnar
2016-04-15 19:12     ` Kees Cook
2016-04-15 19:12       ` [kernel-hardening] " Kees Cook
2016-04-16  8:42       ` Ingo Molnar
2016-04-16  8:42         ` [kernel-hardening] " Ingo Molnar
2016-04-14 22:28 ` [PATCH v5 04/21] x86, boot: Move compressed kernel to end of decompression buffer Kees Cook
2016-04-14 22:28   ` [kernel-hardening] " Kees Cook
2016-04-15  8:09   ` Ingo Molnar
2016-04-15  8:09     ` [kernel-hardening] " Ingo Molnar
2016-04-18 16:50     ` Kees Cook
2016-04-18 16:50       ` [kernel-hardening] " Kees Cook
2016-04-15  9:05   ` Ingo Molnar
2016-04-15  9:05     ` [kernel-hardening] " Ingo Molnar
2016-04-14 22:28 ` [PATCH v5 05/21] x86, boot: Calculate decompression size during boot not build Kees Cook
2016-04-14 22:28   ` [kernel-hardening] " Kees Cook
2016-04-15  8:12   ` Ingo Molnar [this message]
2016-04-15  8:12     ` [kernel-hardening] " Ingo Molnar
2016-04-15 19:14     ` Kees Cook
2016-04-15 19:14       ` [kernel-hardening] " Kees Cook
2016-04-14 22:28 ` [PATCH v5 06/21] x86, KASLR: Update description for decompressor worst case size Kees Cook
2016-04-14 22:28   ` [kernel-hardening] " Kees Cook
2016-04-15 16:17   ` Lasse Collin
2016-04-15 16:17     ` [kernel-hardening] " Lasse Collin
2016-04-14 22:29 ` [PATCH v5 07/21] x86, boot: Fix run_size calculation Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-15  8:31   ` Ingo Molnar
2016-04-15  8:31     ` [kernel-hardening] " Ingo Molnar
2016-04-15 19:26     ` Kees Cook
2016-04-15 19:26       ` [kernel-hardening] " Kees Cook
2016-04-16  9:00       ` Ingo Molnar
2016-04-16  9:00         ` [kernel-hardening] " Ingo Molnar
2016-04-14 22:29 ` [PATCH v5 08/21] x86, KASLR: Clean up unused code from old run_size Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 09/21] x86, KASLR: Correctly bounds-check relocations Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 10/21] x86, KASLR: Consolidate mem_avoid entries Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 11/21] x86, boot: Split out kernel_ident_mapping_init Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 12/21] x86, 64bit: Set ident_mapping for KASLR Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 13/21] x86, boot: Report overlap failures in memcpy Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-15 14:42   ` Lasse Collin
2016-04-15 14:42     ` [kernel-hardening] " Lasse Collin
2016-04-15 19:28     ` Kees Cook
2016-04-15 19:28       ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 14/21] x86, KASLR: Add slot_area to manage random slots Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 15/21] x86, KASLR: Add slot_area support functions Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 16/21] x86, KASLR: Add virtual address choosing function Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 17/21] x86, KASLR: Clarify purpose of each get_random_long Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 18/21] x86, KASLR: Randomize virtual address separately Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 19/21] x86, KASLR: Add physical address randomization >4G Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 20/21] x86, KASLR: Remove unused slot tracking code Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook
2016-04-14 22:29 ` [PATCH v5 21/21] x86, KASLR: Allow randomization below load address Kees Cook
2016-04-14 22:29   ` [kernel-hardening] " Kees Cook

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