Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [PATCH 05/13] efi/x86: don't map the entire kernel text RW for
 mixed mode
To:     Ard Biesheuvel <ardb@kernel.org>
Cc:     Gary Lin <glin@suse.com>, linux-efi <linux-efi@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Anshuman Khandual <anshuman.khandual@arm.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Dan Williams <dan.j.williams@intel.com>,
        Dave Young <dyoung@redhat.com>,
        Saravana Kannan <saravanak@google.com>
References: <20200113172245.27925-1-ardb@kernel.org>
 <20200113172245.27925-6-ardb@kernel.org>
 <63b125a4-6c62-fcdf-de22-d3bebe2dcbf5@suse.cz>
 <CAMj1kXGiT_zYjc6X-msRXVozhpDAY0UesEW3_4fOgiH4FyMgDw@mail.gmail.com>
 <972b66a9-92c7-9a15-1aa1-e3236abe90df@suse.cz>
 <CAMj1kXFGkOM9fbqr44_TbdxqFjH1i3d8dkO64C1mQmH=AqrUSQ@mail.gmail.com>
 <20200409080626.GV5951@GaryWorkstation>
 <984a2b3c-a9d4-e733-6372-4abf0f99be1f@suse.cz>
 <CAMj1kXFHUusU9dDgqhU_qswDVgYWx_kpaDEroj4ZSt3hr-AFsA@mail.gmail.com>
 <d38fd829-b944-da10-58c0-180f80e8264d@suse.cz>
 <CAMj1kXG4F+WzJX8_FyRAxQmDwqvbQMzh3Ji1KcpH_eO3Zt3-WQ@mail.gmail.com>
From:   Jiri Slaby <jslaby@suse.cz>
Autocrypt: addr=jslaby@suse.cz; prefer-encrypt=mutual; keydata=
 mQINBE6S54YBEACzzjLwDUbU5elY4GTg/NdotjA0jyyJtYI86wdKraekbNE0bC4zV+ryvH4j
 rrcDwGs6tFVrAHvdHeIdI07s1iIx5R/ndcHwt4fvI8CL5PzPmn5J+h0WERR5rFprRh6axhOk
 rSD5CwQl19fm4AJCS6A9GJtOoiLpWn2/IbogPc71jQVrupZYYx51rAaHZ0D2KYK/uhfc6neJ
 i0WqPlbtIlIrpvWxckucNu6ZwXjFY0f3qIRg3Vqh5QxPkojGsq9tXVFVLEkSVz6FoqCHrUTx
 wr+aw6qqQVgvT/McQtsI0S66uIkQjzPUrgAEtWUv76rM4ekqL9stHyvTGw0Fjsualwb0Gwdx
 ReTZzMgheAyoy/umIOKrSEpWouVoBt5FFSZUyjuDdlPPYyPav+hpI6ggmCTld3u2hyiHji2H
 cDpcLM2LMhlHBipu80s9anNeZhCANDhbC5E+NZmuwgzHBcan8WC7xsPXPaiZSIm7TKaVoOcL
 9tE5aN3jQmIlrT7ZUX52Ff/hSdx/JKDP3YMNtt4B0cH6ejIjtqTd+Ge8sSttsnNM0CQUkXps
 w98jwz+Lxw/bKMr3NSnnFpUZaxwji3BC9vYyxKMAwNelBCHEgS/OAa3EJoTfuYOK6wT6nadm
 YqYjwYbZE5V/SwzMbpWu7Jwlvuwyfo5mh7w5iMfnZE+vHFwp/wARAQABtBtKaXJpIFNsYWJ5
 IDxqc2xhYnlAc3VzZS5jej6JAjgEEwECACIFAk6S6NgCGwMGCwkIBwMCBhUIAgkKCwQWAgMB
 Ah4BAheAAAoJEL0lsQQGtHBJgDsP/j9wh0vzWXsOPO3rDpHjeC3BT5DKwjVN/KtP7uZttlkB
 duReCYMTZGzSrmK27QhCflZ7Tw0Naq4FtmQSH8dkqVFugirhlCOGSnDYiZAAubjTrNLTqf7e
 5poQxE8mmniH/Asg4KufD9bpxSIi7gYIzaY3hqvYbVF1vYwaMTujojlixvesf0AFlE4x8WKs
 wpk43fmo0ZLcwObTnC3Hl1JBsPujCVY8t4E7zmLm7kOB+8EHaHiRZ4fFDWweuTzRDIJtVmrH
 LWvRDAYg+IH3SoxtdJe28xD9KoJw4jOX1URuzIU6dklQAnsKVqxz/rpp1+UVV6Ky6OBEFuoR
 613qxHCFuPbkRdpKmHyE0UzmniJgMif3v0zm/+1A/VIxpyN74cgwxjhxhj/XZWN/LnFuER1W
 zTHcwaQNjq/I62AiPec5KgxtDeV+VllpKmFOtJ194nm9QM9oDSRBMzrG/2AY/6GgOdZ0+qe+
 4BpXyt8TmqkWHIsVpE7I5zVDgKE/YTyhDuqYUaWMoI19bUlBBUQfdgdgSKRMJX4vE72dl8BZ
 +/ONKWECTQ0hYntShkmdczcUEsWjtIwZvFOqgGDbev46skyakWyod6vSbOJtEHmEq04NegUD
 al3W7Y/FKSO8NqcfrsRNFWHZ3bZ2Q5X0tR6fc6gnZkNEtOm5fcWLY+NVz4HLaKrJuQINBE6S
 54YBEADPnA1iy/lr3PXC4QNjl2f4DJruzW2Co37YdVMjrgXeXpiDvneEXxTNNlxUyLeDMcIQ
 K8obCkEHAOIkDZXZG8nr4mKzyloy040V0+XA9paVs6/ice5l+yJ1eSTs9UKvj/pyVmCAY1Co
 SNN7sfPaefAmIpduGacp9heXF+1Pop2PJSSAcCzwZ3PWdAJ/w1Z1Dg/tMCHGFZ2QCg4iFzg5
 Bqk4N34WcG24vigIbRzxTNnxsNlU1H+tiB81fngUp2pszzgXNV7CWCkaNxRzXi7kvH+MFHu2
 1m/TuujzxSv0ZHqjV+mpJBQX/VX62da0xCgMidrqn9RCNaJWJxDZOPtNCAWvgWrxkPFFvXRl
 t52z637jleVFL257EkMI+u6UnawUKopa+Tf+R/c+1Qg0NHYbiTbbw0pU39olBQaoJN7JpZ99
 T1GIlT6zD9FeI2tIvarTv0wdNa0308l00bas+d6juXRrGIpYiTuWlJofLMFaaLYCuP+e4d8x
 rGlzvTxoJ5wHanilSE2hUy2NSEoPj7W+CqJYojo6wTJkFEiVbZFFzKwjAnrjwxh6O9/V3O+Z
 XB5RrjN8hAf/4bSo8qa2y3i39cuMT8k3nhec4P9M7UWTSmYnIBJsclDQRx5wSh0Mc9Y/psx9
 B42WbV4xrtiiydfBtO6tH6c9mT5Ng+d1sN/VTSPyfQARAQABiQIfBBgBAgAJBQJOkueGAhsM
 AAoJEL0lsQQGtHBJN7UQAIDvgxaW8iGuEZZ36XFtewH56WYvVUefs6+Pep9ox/9ZXcETv0vk
 DUgPKnQAajG/ViOATWqADYHINAEuNvTKtLWmlipAI5JBgE+5g9UOT4i69OmP/is3a/dHlFZ3
 qjNk1EEGyvioeycJhla0RjakKw5PoETbypxsBTXk5EyrSdD/I2Hez9YGW/RcI/WC8Y4Z/7FS
 ITZhASwaCOzy/vX2yC6iTx4AMFt+a6Z6uH/xGE8pG5NbGtd02r+m7SfuEDoG3Hs1iMGecPyV
 XxCVvSV6dwRQFc0UOZ1a6ywwCWfGOYqFnJvfSbUiCMV8bfRSWhnNQYLIuSv/nckyi8CzCYIg
 c21cfBvnwiSfWLZTTj1oWyj5a0PPgGOdgGoIvVjYXul3yXYeYOqbYjiC5t99JpEeIFupxIGV
 ciMk6t3pDrq7n7Vi/faqT+c4vnjazJi0UMfYnnAzYBa9+NkfW0w5W9Uy7kW/v7SffH/2yFiK
 9HKkJqkN9xYEYaxtfl5pelF8idoxMZpTvCZY7jhnl2IemZCBMs6s338wS12Qro5WEAxV6cjD
 VSdmcD5l9plhKGLmgVNCTe8DPv81oDn9s0cIRLg9wNnDtj8aIiH8lBHwfUkpn32iv0uMV6Ae
 sLxhDWfOR4N+wu1gzXWgLel4drkCJcuYK5IL1qaZDcuGR8RPo3jbFO7Y
Message-ID: <b6006dd7-2ce0-0776-9a61-52377b8eef63@suse.cz>
Date:   Thu, 9 Apr 2020 12:09:44 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.5.0
MIME-Version: 1.0
In-Reply-To: <CAMj1kXG4F+WzJX8_FyRAxQmDwqvbQMzh3Ji1KcpH_eO3Zt3-WQ@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On 09. 04. 20, 11:09, Ard Biesheuvel wrote:
> On Thu, 9 Apr 2020 at 10:36, Jiri Slaby <jslaby@suse.cz> wrote:
>>
>> On 09. 04. 20, 10:19, Ard Biesheuvel wrote:
>>>>>> $ rpm -qlp ~/Downloads/ovmf-202002-1.1.i586.rpm
>>>>>> warning: /home/ardbie01/Downloads/ovmf-202002-1.1.i586.rpm: Header V3
>>>>>> RSA/SHA256 Signature, key ID 3dbdc284: NOKEY
>>>>>> /usr/share/doc/packages/ovmf
>>>>>> /usr/share/doc/packages/ovmf/README
>>>>>
>>>>> Hmmm, it's weird that OBS doesn't list all derived files.
>>>>> Anyway, the ia32 ovmf is available in
>>>>> http://download.opensuse.org/tumbleweed/repo/oss/noarch/qemu-ovmf-ia32-202002-1.1.noarch.rpm
>>>>
>>>> It indeed does:
>>>> https://build.opensuse.org/package/binaries/openSUSE:Factory/ovmf/standard
>>>>
>>>> Note that the ia32 version is noarch, built on i586.
>>>>
>>>
>>> I am not able to reproduce this issue using the linked firmware image
>>> and a 5.6 x86_64_defconfig with efivarfs built in.
>>
>> Yeah, I had to use the distro config too. Not sure what the trigger is.
>> Maybe some NUMA configs or something.
>>
>>> Could anyone share the full log, please, along with the kernel config
>>> that was used?
>>
>> Both uploaded:
>> http://decibel.fi.muni.cz/~xslaby/err/
>>
> 
> With the same config, I am still not seeing the issue.
> 
> 
>> Note that I switched the for-me-necessary =m configs to =y. So that it
>> is enough to build bzImage, w/o modules...
>>
> 
> Could you please try running it again with CONFIG_EFI_PGT_DUMP=y enabled?

No problem:
http://decibel.fi.muni.cz/~xslaby/err/dmesg2.txt

> In the mean time, I will try to install Tumbleweed from scratch. Do
> you have any steps I could follow to reproduce your setup?

Not really, just installed TW 64-bit and used efi and grub 32 bit.

-- 
js
suse labs