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[83.52.55.163]) by smtp.gmail.com with ESMTPSA id v15sm10706634wmj.11.2021.08.02.06.21.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Aug 2021 06:21:43 -0700 (PDT) Subject: Re: Windows on ARM64 not able to use attached TPM 2 To: Ard Biesheuvel , Eric Auger , Leif Lindholm References: <5ef559fa-c996-ba42-b9f0-416c7de661c8@redhat.com> <7207680a-5667-33ea-7d3a-99f6297f4b04@redhat.com> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: <4eb88a28-5251-dbfa-b7cd-e18f03100b09@redhat.com> Date: Mon, 2 Aug 2021 15:21:42 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.701, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Ard Biesheuvel , qemu-devel@nongnu.org, =?UTF-8?Q?Marc-Andr=c3=a9_Lureau?= , Stefan Berger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Adding Leif who might add someone who knows ;) On 8/2/21 2:09 PM, Ard Biesheuvel wrote: > On Mon, 2 Aug 2021 at 11:51, Eric Auger wrote: >> >> and also adding Ard if he is aware of any limitation the TPM2 >> integration may suffer for Windows support. On my end I am only able to >> test on Linux atm. >> > > I never tested Windows with the TPM2 support, so I cannot answer this, > unfortunately. > >> >> On 8/2/21 11:04 AM, Philippe Mathieu-Daudé wrote: >>> Cc'ing Marc-André who is your EDK2 co-maintainer. >>> >>> On 8/1/21 2:28 AM, Stefan Berger wrote: >>>> Hello! >>>> >>>> I maintain the TPM support in QEMU and the TPM emulator (swtpm). I have >>>> a report from a user who would like to use QEMU on ARM64 (aarch64) with >>>> EDK2 and use an attached TPM 2 but it doesn't seem to work for him. We >>>> know that Windows on x86_64 works with EDK2 and can use an attached TPM >>>> 2 (using swtpm). I don't have an aarch64 host myself nor a Microsoft >>>> account to be able to access the Windows ARM64 version, so maybe someone >>>> here has the necessary background, credentials, and hardware to run QEMU >>>> on using kvm to investigate what the problems may be due to on that >>>> platform. >>>> >>>> https://github.com/stefanberger/swtpm/issues/493 >>>> >>>> On Linux it seems to access the TPM emulator with the normal tpm_tis >>>> driver. >>>> >>>> Regards, >>>> >>>> Stefan >>>> >>>> >>>> >> >