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From: Chao Fan <fanc.fnst@cn.fujitsu.com>
To: Baoquan He <bhe@redhat.com>
Cc: Masayoshi Mizuma <msys.mizuma@gmail.com>,
	Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	linux-efi@vger.kernel.org, linux-acpi@vger.kernel.org,
	mingo@redhat.com, hpa@zytor.com, keescook@chromium.org,
	rjw@rjwysocki.net, lenb@kernel.org, ard.biesheuvel@linaro.org,
	indou.takao@jp.fujitsu.com, caoj.fnst@cn.fujitsu.com
Subject: Re: [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory
Date: Wed, 7 Nov 2018 09:21:45 +0800	[thread overview]
Message-ID: <20181107012145.GA2683@localhost.localdomain> (raw)
In-Reply-To: <20181106140731.GO27491@MiWiFi-R3L-srv>

On Tue, Nov 06, 2018 at 10:07:31PM +0800, Baoquan He wrote:
>On 11/06/18 at 01:10pm, Borislav Petkov wrote:
>> > I have another idea to solve this issue. Adding a SRAT parsing code
>> > to arch/x86/mm/kaslr.c. It is useful for both EFI and BIOS and
>> > also we don't need a new kernel parameter...
>> > Dose the idea make sense?
>> 
>> The more automatic stuff we do and we don't have to involve the user,
>> the better.
>> 
>> However, lemme look at Chao's current patchset first - we should not go
>> nuts by putting SRAT parsing everywhere :)
>
>arch/x86/mm/ident_map.c is a good example, it's shared between
>arch/x86/boot/compressed and arch/x86/mm/init_64.c

Thanks to Baoquan, I think we can try this idea.
How about you, Masa?

Thanks,
Chao Fan

>
>

WARNING: multiple messages have this Message-ID (diff)
From: Chao Fan <fanc.fnst@cn.fujitsu.com>
To: Baoquan He <bhe@redhat.com>
Cc: Masayoshi Mizuma <msys.mizuma@gmail.com>,
	Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	<linux-kernel@vger.kernel.org>, <x86@kernel.org>,
	<linux-efi@vger.kernel.org>, <linux-acpi@vger.kernel.org>,
	<mingo@redhat.com>, <hpa@zytor.com>, <keescook@chromium.org>,
	<rjw@rjwysocki.net>, <lenb@kernel.org>,
	<ard.biesheuvel@linaro.org>, <indou.takao@jp.fujitsu.com>,
	<caoj.fnst@cn.fujitsu.com>
Subject: Re: [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory
Date: Wed, 7 Nov 2018 09:21:45 +0800	[thread overview]
Message-ID: <20181107012145.GA2683@localhost.localdomain> (raw)
In-Reply-To: <20181106140731.GO27491@MiWiFi-R3L-srv>

On Tue, Nov 06, 2018 at 10:07:31PM +0800, Baoquan He wrote:
>On 11/06/18 at 01:10pm, Borislav Petkov wrote:
>> > I have another idea to solve this issue. Adding a SRAT parsing code
>> > to arch/x86/mm/kaslr.c. It is useful for both EFI and BIOS and
>> > also we don't need a new kernel parameter...
>> > Dose the idea make sense?
>> 
>> The more automatic stuff we do and we don't have to involve the user,
>> the better.
>> 
>> However, lemme look at Chao's current patchset first - we should not go
>> nuts by putting SRAT parsing everywhere :)
>
>arch/x86/mm/ident_map.c is a good example, it's shared between
>arch/x86/boot/compressed and arch/x86/mm/init_64.c

Thanks to Baoquan, I think we can try this idea.
How about you, Masa?

Thanks,
Chao Fan

>
>



  reply	other threads:[~2018-11-07  1:21 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-10  8:41 [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory Chao Fan
2018-10-10  8:41 ` Chao Fan
2018-10-10  8:41 ` [PATCH v8 1/3] x86/boot: Add acpitb.c to parse acpi tables Chao Fan
2018-10-10  8:41   ` Chao Fan
2018-10-11 10:57   ` Borislav Petkov
2018-10-12  1:56     ` Chao Fan
2018-10-12  1:56       ` Chao Fan
2018-10-12  9:36     ` Chao Fan
2018-10-12  9:36       ` Chao Fan
2018-10-12  9:46       ` Borislav Petkov
2018-10-12 10:03         ` Chao Fan
2018-10-12 10:03           ` Chao Fan
2018-10-16  2:48     ` Chao Fan
2018-10-16  2:48       ` Chao Fan
2018-10-16 12:40       ` Borislav Petkov
2018-10-17  1:10         ` Chao Fan
2018-10-17  1:10           ` Chao Fan
2018-10-15 20:26   ` Masayoshi Mizuma
2018-10-16  1:50     ` Chao Fan
2018-10-16  1:50       ` Chao Fan
2018-10-10  8:41 ` [PATCH v8 2/3] x86/boot/KASLR: Walk srat tables to filter immovable memory Chao Fan
2018-10-10  8:41   ` Chao Fan
2018-10-10  8:41 ` [PATCH v8 3/3] x86/boot/KASLR: Limit kaslr to choosing the " Chao Fan
2018-10-10  8:41   ` Chao Fan
2018-10-10  8:59 ` [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr in " Borislav Petkov
2018-10-10  8:59   ` Borislav Petkov
2018-10-10  9:06   ` Baoquan He
2018-10-10  9:12     ` Chao Fan
2018-10-10  9:12       ` Chao Fan
2018-10-10  9:21       ` Baoquan He
2018-10-10  9:14     ` Thomas Gleixner
2018-10-10  9:19       ` Borislav Petkov
2018-10-10  9:30         ` Baoquan He
2018-10-10 19:44           ` Masayoshi Mizuma
2018-10-11  0:29             ` Baoquan He
2018-10-11  5:51               ` Chao Fan
2018-10-11  5:51                 ` Chao Fan
2018-10-13 20:19                 ` Masayoshi Mizuma
2018-10-13 20:34                   ` Borislav Petkov
2018-10-13 21:45                     ` Masayoshi Mizuma
2018-10-13 22:05                       ` Borislav Petkov
2018-10-15  0:50                         ` Masayoshi Mizuma
2018-10-16 15:13                           ` Masayoshi Mizuma
2018-10-16 19:11                             ` Borislav Petkov
2018-10-16 19:54                               ` Masayoshi Mizuma
2018-10-16 19:59                                 ` Borislav Petkov
2018-10-22 15:42                                   ` Masayoshi Mizuma
2018-10-23  2:48                                     ` Chao Fan
2018-10-23  2:48                                       ` Chao Fan
2018-10-24 19:21                                       ` Masayoshi Mizuma
2018-10-25  1:22                                         ` Chao Fan
2018-10-25  1:22                                           ` Chao Fan
2018-10-25 10:33                                     ` Borislav Petkov
2018-10-25 13:40                                       ` Masayoshi Mizuma
2018-11-06 12:10                                         ` Borislav Petkov
2018-11-06 14:07                                           ` Baoquan He
2018-11-07  1:21                                             ` Chao Fan [this message]
2018-11-07  1:21                                               ` Chao Fan
2018-11-06 18:45                                         ` Borislav Petkov
2018-11-06 19:36                                           ` Masayoshi Mizuma
2018-11-06 20:45                                             ` Borislav Petkov
2018-11-06 22:21                                               ` Masayoshi Mizuma
2018-11-08 10:51                                                 ` Borislav Petkov
2018-11-08 10:51                                                   ` Borislav Petkov
2018-11-10 10:54                                                   ` Borislav Petkov
2018-11-11 13:45                                                     ` Masayoshi Mizuma
2019-02-05 15:05                                                       ` Masayoshi Mizuma
2019-02-08 18:26                                                         ` Borislav Petkov
2019-02-09  0:24                                                           ` Masayoshi Mizuma
2019-02-11  1:46                                                         ` Chao Fan
2019-02-11  1:46                                                           ` Chao Fan
2019-02-11 20:11                                                           ` Masayoshi Mizuma
2018-10-10 17:16 ` Borislav Petkov
2018-10-11  1:30   ` Chao Fan
2018-10-11  1:30     ` Chao Fan

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