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b=l3HwRe3j/Q8vzzkAU3DfT13m+Gi7xKjRBn5d/xqZCR7Wi/lPxpFsk3zjwFAta0lnwlbqshe2fMfXggvdz01dBbzA6E5tOA6X2TFhy61p3DwGmMwGsSl86KznZB7Jj0pWl5jGKbosBfdNLB3g5tHIzF2COFzNCPfDShWxYuKc31ELrwFdOU9owrsoC87IfdHTElkQFhNDs2lNDyo9UCZ5U43nvA6lsvIm7Ow9R4MuCNzYGV1bngX3lCEvXDW7yKk988blW+xawQKxOU3CoeTSjIKck4MgudgaxHuVmgx57E188IzRYoBfbwBie87zk5fPWiPOnH0nrR7tKl/kGDbn6w== From: John Levon To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Thanos Makatos , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Thomas Huth , Zhao Liu , John Levon , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini Subject: [PATCH v4 1/3] tests/functional: return output from cmd.py helpers Date: Wed, 3 Sep 2025 22:19:29 +0200 Message-ID: <20250903201931.168317-2-john.levon@nutanix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250903201931.168317-1-john.levon@nutanix.com> References: <20250903201931.168317-1-john.levon@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS4P195CA0025.EURP195.PROD.OUTLOOK.COM (2603:10a6:20b:5d6::20) To CH2PR02MB6760.namprd02.prod.outlook.com (2603:10b6:610:7f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR02MB6760:EE_|CH0PR02MB8133:EE_ X-MS-Office365-Filtering-Correlation-Id: a1f9304f-41cb-420d-1aad-08ddeb2734fc x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.155.12; envelope-from=john.levon@nutanix.com; helo=mx0b-002c1b01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @nutanix.com) X-ZM-MESSAGEID: 1756930855454116600 Content-Type: text/plain; charset="utf-8" Tests might want to look at the whole output from a command execution, as well as just logging it. Add support for this. Signed-off-by: John Levon --- tests/functional/qemu_test/cmd.py | 53 +++++++++++++++++++++++++------ 1 file changed, 44 insertions(+), 9 deletions(-) diff --git a/tests/functional/qemu_test/cmd.py b/tests/functional/qemu_test= /cmd.py index dc5f422b77..c19dfc577f 100644 --- a/tests/functional/qemu_test/cmd.py +++ b/tests/functional/qemu_test/cmd.py @@ -45,6 +45,9 @@ def is_readable_executable_file(path): # If end of line is seen, with neither @success or @failure # return False # +# In both cases, also return the contents of the line (in bytes) +# up to that point. +# # If @failure is seen, then mark @test as failed def _console_read_line_until_match(test, vm, success, failure): msg =3D bytes([]) @@ -76,10 +79,23 @@ def _console_read_line_until_match(test, vm, success, f= ailure): except: console_logger.debug(msg) =20 - return done + return done, msg =20 def _console_interaction(test, success_message, failure_message, send_string, keep_sending=3DFalse, vm=3DNone): + """ + Interact with the console until either message is seen. + + :param success_message: if this message appears, finish interaction + :param failure_message: if this message appears, test fails + :param send_string: a string to send to the console before trying + to read a new line + :param keep_sending: keep sending the send string each time + :param vm: the VM to interact with + + :return: The collected output (in bytes form). + """ + assert not keep_sending or send_string assert success_message or send_string =20 @@ -101,6 +117,8 @@ def _console_interaction(test, success_message, failure= _message, if failure_message is not None: failure_message_b =3D failure_message.encode() =20 + out =3D bytes([]) + while True: if send_string: vm.console_socket.sendall(send_string.encode()) @@ -113,11 +131,17 @@ def _console_interaction(test, success_message, failu= re_message, break continue =20 - if _console_read_line_until_match(test, vm, - success_message_b, - failure_message_b): + done, line =3D _console_read_line_until_match(test, vm, + success_message_b, + failure_message_b) + + out +=3D line + + if done: break =20 + return out + def interrupt_interactive_console_until_pattern(test, success_message, failure_message=3DNone, interrupt_string=3D'\r'): @@ -140,10 +164,12 @@ def interrupt_interactive_console_until_pattern(test,= success_message, :param failure_message: if this message appears, test fails :param interrupt_string: a string to send to the console before trying to read a new line + + :return: The collected output (in bytes form). """ assert success_message - _console_interaction(test, success_message, failure_message, - interrupt_string, True) + return _console_interaction(test, success_message, failure_message, + interrupt_string, True) =20 def wait_for_console_pattern(test, success_message, failure_message=3DNone, vm=3DNone): @@ -155,9 +181,12 @@ def wait_for_console_pattern(test, success_message, fa= ilure_message=3DNone, :type test: :class:`qemu_test.QemuSystemTest` :param success_message: if this message appears, test succeeds :param failure_message: if this message appears, test fails + + :return: The collected output (in bytes form). """ assert success_message - _console_interaction(test, success_message, failure_message, None, vm= =3Dvm) + return _console_interaction(test, success_message, failure_message, + None, vm=3Dvm) =20 def exec_command(test, command): """ @@ -168,8 +197,10 @@ def exec_command(test, command): :type test: :class:`qemu_test.QemuSystemTest` :param command: the command to send :type command: str + + :return: The collected output (in bytes form). """ - _console_interaction(test, None, None, command + '\r') + return _console_interaction(test, None, None, command + '\r') =20 def exec_command_and_wait_for_pattern(test, command, success_message, failure_message=3DN= one): @@ -184,9 +215,13 @@ def exec_command_and_wait_for_pattern(test, command, :param command: the command to send :param success_message: if this message appears, test succeeds :param failure_message: if this message appears, test fails + + :return: The collected output (in bytes form). """ assert success_message - _console_interaction(test, success_message, failure_message, command += '\r') + + return _console_interaction(test, success_message, failure_message, + command + '\r') =20 def get_qemu_img(test): test.log.debug('Looking for and selecting a qemu-img binary') --=20 2.43.0 From nobody Sat Sep 6 14:40:40 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=nutanix.com); dmarc=pass(p=none dis=none) header.from=nutanix.com ARC-Seal: i=2; a=rsa-sha256; t=1756930855; cv=pass; d=zohomail.com; s=zohoarc; b=Iy/wviMlWSLNRzxkmMj7ZmxcnH1Pb0vSkXAEtdRh/JBAD6iHX8c+js4LnzsSWCUaTKCdK3oYNrfpBds50ju8wMZhdChl0RHOEPIwW9ve61y814laJHbQt0E/+juHm5/N6RQFFsIUqCEFQ41I9+XOMjNBK+4aJG+zPOJ1xvSeOTY= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; 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b=uyxoOQb57xrCyrhkHGW0RBM/rxvsPQLGG6TOowSR6LtC2ZJoqUOmeys4u0gA+R3DYXqM/dK0wHH4TIviqnaWUzv4QjDLBmmPC9kC5AanT8gTOm6S16pQTOIU/Q56v3hVHHYpPAP7hyo7aVMu0KWUJ7h9Ys4kPlrxnK0a2fpTpcDsv3ayYZwVEXjLv5If5yykT7ss3IFLv6+bS7hfcV5/LY2n17HsL4eXRqmsTbPIhaJEPRWfK5sXJrXPu0lJujoC41VMXRxQzO0J8mKr7GHl4lMrYZz5lqPfIrnp2FVVY2AAkyR+feRG9Kp3ykc9XUt7/0xzzQg2clFnfRzp/0Jz0A== From: John Levon To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Thanos Makatos , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Thomas Huth , Zhao Liu , John Levon , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini Subject: [PATCH v4 2/3] tests/functional: add vm param to cmd.py helpers Date: Wed, 3 Sep 2025 22:19:30 +0200 Message-ID: <20250903201931.168317-3-john.levon@nutanix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250903201931.168317-1-john.levon@nutanix.com> References: <20250903201931.168317-1-john.levon@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS4P195CA0025.EURP195.PROD.OUTLOOK.COM (2603:10a6:20b:5d6::20) To CH2PR02MB6760.namprd02.prod.outlook.com (2603:10b6:610:7f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR02MB6760:EE_|CH0PR02MB8133:EE_ X-MS-Office365-Filtering-Correlation-Id: 67b58113-b1ba-43f5-21e2-08ddeb273631 x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.155.12; envelope-from=john.levon@nutanix.com; helo=mx0b-002c1b01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @nutanix.com) X-ZM-MESSAGEID: 1756930857484124100 Content-Type: text/plain; charset="utf-8" Extend the "vm" parameter of wait_for_console_pattern() to all the other utility functions; this allows them to be used on a VM other than test.vm. Signed-off-by: John Levon --- tests/functional/qemu_test/cmd.py | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/tests/functional/qemu_test/cmd.py b/tests/functional/qemu_test= /cmd.py index c19dfc577f..8069c89730 100644 --- a/tests/functional/qemu_test/cmd.py +++ b/tests/functional/qemu_test/cmd.py @@ -144,7 +144,8 @@ def _console_interaction(test, success_message, failure= _message, =20 def interrupt_interactive_console_until_pattern(test, success_message, failure_message=3DNone, - interrupt_string=3D'\r'): + interrupt_string=3D'\r', + vm=3DNone): """ Keep sending a string to interrupt a console prompt, while logging the console output. Typical use case is to break a boot loader prompt, suc= h: @@ -164,12 +165,13 @@ def interrupt_interactive_console_until_pattern(test,= success_message, :param failure_message: if this message appears, test fails :param interrupt_string: a string to send to the console before trying to read a new line + :param vm: VM to use =20 :return: The collected output (in bytes form). """ assert success_message return _console_interaction(test, success_message, failure_message, - interrupt_string, True) + interrupt_string, True, vm=3Dvm) =20 def wait_for_console_pattern(test, success_message, failure_message=3DNone, vm=3DNone): @@ -181,6 +183,7 @@ def wait_for_console_pattern(test, success_message, fai= lure_message=3DNone, :type test: :class:`qemu_test.QemuSystemTest` :param success_message: if this message appears, test succeeds :param failure_message: if this message appears, test fails + :param vm: VM to use =20 :return: The collected output (in bytes form). """ @@ -188,7 +191,7 @@ def wait_for_console_pattern(test, success_message, fai= lure_message=3DNone, return _console_interaction(test, success_message, failure_message, None, vm=3Dvm) =20 -def exec_command(test, command): +def exec_command(test, command, vm=3DNone): """ Send a command to a console (appending CRLF characters), while logging the content. @@ -196,14 +199,16 @@ def exec_command(test, command): :param test: a test containing a VM. :type test: :class:`qemu_test.QemuSystemTest` :param command: the command to send + :param vm: VM to use :type command: str =20 :return: The collected output (in bytes form). """ - return _console_interaction(test, None, None, command + '\r') + return _console_interaction(test, None, None, command + '\r', vm=3Dvm) =20 def exec_command_and_wait_for_pattern(test, command, - success_message, failure_message=3DN= one): + success_message, failure_message=3DN= one, + vm=3DNone): """ Send a command to a console (appending CRLF characters), then wait for success_message to appear on the console, while logging the. @@ -215,13 +220,14 @@ def exec_command_and_wait_for_pattern(test, command, :param command: the command to send :param success_message: if this message appears, test succeeds :param failure_message: if this message appears, test fails + :param vm: VM to use =20 :return: The collected output (in bytes form). """ assert success_message =20 return _console_interaction(test, success_message, failure_message, - command + '\r') + command + '\r', vm=3Dvm) =20 def get_qemu_img(test): test.log.debug('Looking for and selecting a qemu-img binary') --=20 2.43.0 From nobody Sat Sep 6 14:40:40 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=nutanix.com); dmarc=pass(p=none dis=none) header.from=nutanix.com ARC-Seal: i=2; a=rsa-sha256; t=1756930855; cv=pass; d=zohomail.com; s=zohoarc; b=Ubov/HM5XmG86ySB/er9NE2ruOA/8FKhxU8WDQ9mSFf75MfpS9FopSAvUnbPuSgdjoMUHo4hoPS8TNLMI76w8I1MGsccn4XQY9IvU3WT55TbpsEkj0x3ihCiUO40WroaQPlwR0xPHHgAox+ymMJmMd5w40twcV+WnAgDwuUwiKY= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1756930855; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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b=bzxFBWGwHP92bfx8WTEUrw4edOTxUnnQtaTaQOCmlfdJG4qct0CevZ1kCBAG2ttDBwhIfifuNR8NBrpR2X9W0v+WmkKKXXTd48hkQGua7slSfKK35anwxjD48gLnggVxkSnJ8BDj09X0NBXV/NJ10ir03XFCK0n70BeZw5LWsYbKnPk92E1XKJ5YhXmwSE9OfKRg9qJXFqQlS772++UZk9H30Olg0IPNyoV2NkOP9gmZ1mHMKyx+dkKPmmwAZpUXYpOjjOrtCelNV9TpsZ9tznCwAkGgr6cxOEz4AgkkCwM6Aak3nfcEwYflNZBGkWqhWN69WNozgI7lvnHJ/hU9wA== From: John Levon To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Thanos Makatos , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Thomas Huth , Zhao Liu , John Levon , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , Mark Cave-Ayland Subject: [PATCH v4 3/3] tests/functional: add a vfio-user smoke test Date: Wed, 3 Sep 2025 22:19:31 +0200 Message-ID: <20250903201931.168317-4-john.levon@nutanix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250903201931.168317-1-john.levon@nutanix.com> References: <20250903201931.168317-1-john.levon@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS4P195CA0025.EURP195.PROD.OUTLOOK.COM (2603:10a6:20b:5d6::20) To CH2PR02MB6760.namprd02.prod.outlook.com (2603:10b6:610:7f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR02MB6760:EE_|CH0PR02MB8133:EE_ X-MS-Office365-Filtering-Correlation-Id: d4bad6fd-e5b0-4cfc-9951-08ddeb273823 x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.151.68; envelope-from=john.levon@nutanix.com; helo=mx0a-002c1b01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @nutanix.com) X-ZM-MESSAGEID: 1756930857693116600 Content-Type: text/plain; charset="utf-8" From: Mark Cave-Ayland Add a basic test of the vfio-user PCI client implementation. Co-authored-by: John Levon Signed-off-by: Mark Cave-Ayland Signed-off-by: John Levon --- MAINTAINERS | 1 + tests/functional/x86_64/meson.build | 1 + .../x86_64/test_vfio_user_client.py | 207 ++++++++++++++++++ 3 files changed, 209 insertions(+) create mode 100755 tests/functional/x86_64/test_vfio_user_client.py diff --git a/MAINTAINERS b/MAINTAINERS index 1ae28e8804..9987ac8a4d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4305,6 +4305,7 @@ F: docs/system/devices/vfio-user.rst F: hw/vfio-user/* F: include/hw/vfio-user/* F: subprojects/libvfio-user +F: tests/functional/x86_64/test_vfio_user_client.py =20 EBPF: M: Jason Wang diff --git a/tests/functional/x86_64/meson.build b/tests/functional/x86_64/= meson.build index d0b4667bb8..eed1936976 100644 --- a/tests/functional/x86_64/meson.build +++ b/tests/functional/x86_64/meson.build @@ -31,6 +31,7 @@ tests_x86_64_system_thorough =3D [ 'replay', 'reverse_debug', 'tuxrun', + 'vfio_user_client', 'virtio_balloon', 'virtio_gpu', ] diff --git a/tests/functional/x86_64/test_vfio_user_client.py b/tests/funct= ional/x86_64/test_vfio_user_client.py new file mode 100755 index 0000000000..a9cb2f4621 --- /dev/null +++ b/tests/functional/x86_64/test_vfio_user_client.py @@ -0,0 +1,207 @@ +#!/usr/bin/env python3 +# +# Copyright (c) 2025 Nutanix, Inc. +# +# Author: +# Mark Cave-Ayland +# John Levon +# +# SPDX-License-Identifier: GPL-2.0-or-later +""" +Check basic vfio-user-pci client functionality. The test starts two VMs: + + - the server VM runs the libvfio-user "gpio" example server inside it, + piping vfio-user traffic between a local UNIX socket and a virtio-se= rial + port. On the host, the virtio-serial port is backed by a local socke= t. + + - the client VM loads the gpio-pci-idio-16 kernel module, with the + vfio-user client connecting to the above local UNIX socket. + +This way, we don't depend on trying to run a vfio-user server on the host +itself. + +Once both VMs are running, we run some basic configuration on the gpio dev= ice +and verify that the server is logging the expected out. As this is consist= ent +given the same VM images, we just do a simple direct comparison. +""" + +import difflib +import logging +import os +import re +import select +import shutil +import socket +import subprocess +import time + +from qemu_test import Asset +from qemu_test import QemuSystemTest +from qemu_test import exec_command +from qemu_test import exec_command_and_wait_for_pattern +from qemu_test import wait_for_console_pattern + +# Exact output can vary, so we just sample for some expected lines. +EXPECTED_SERVER_LINES =3D [ + "gpio: adding DMA region [0, 0xc0000) offset=3D0 flags=3D0x3", + "gpio: devinfo flags 0x3, num_regions 9, num_irqs 5", + "gpio: region_info[0] offset 0 flags 0 size 0 argsz 32", + "gpio: region_info[1] offset 0 flags 0 size 0 argsz 32", + "gpio: region_info[2] offset 0 flags 0x3 size 256 argsz 32", + "gpio: region_info[3] offset 0 flags 0 size 0 argsz 32", + "gpio: region_info[4] offset 0 flags 0 size 0 argsz 32", + "gpio: region_info[5] offset 0 flags 0 size 0 argsz 32", + "gpio: region_info[7] offset 0 flags 0x3 size 256 argsz 32", + "gpio: region7: read 256 bytes at 0", + "gpio: region7: read 0 from (0x30:4)", + "gpio: cleared EROM", + "gpio: I/O space enabled", + "gpio: memory space enabled", + "gpio: SERR# enabled", + "gpio: region7: wrote 0x103 to (0x4:2)", + "gpio: I/O space enabled", + "gpio: memory space enabled", +] + +class VfioUserClient(QemuSystemTest): + + ASSET_REPO =3D 'https://github.com/mcayland-ntx/libvfio-user-test' + + ASSET_KERNEL =3D Asset( + f'{ASSET_REPO}/raw/refs/heads/main/images/bzImage', + '40292fa6ce95d516e26bccf5974e138d0db65a6de0bc540cabae060fe9dea605' + ) + + ASSET_ROOTFS =3D Asset( + f'{ASSET_REPO}/raw/refs/heads/main/images/rootfs.ext2', + 'e1e3abae8aebb8e6e77f08b1c531caeacf46250c94c815655c6bbea59fc3d1c1' + ) + + + def prepare_images(self): + """Set up the images for the VMs.""" + self.kernel_path =3D self.ASSET_KERNEL.fetch() + rootfs_path =3D self.ASSET_ROOTFS.fetch() + + self.server_rootfs_path =3D self.scratch_file('server.ext2') + shutil.copy(rootfs_path, self.server_rootfs_path) + os.chmod(self.server_rootfs_path, 0o600) + self.client_rootfs_path =3D self.scratch_file('client.ext2') + shutil.copy(rootfs_path, self.client_rootfs_path) + os.chmod(self.client_rootfs_path, 0o600) + + def configure_server_vm_args(self, server_vm, sock_path): + """ + Configuration for the server VM. Set up virtio-serial device backe= d by + the given socket path. + """ + server_vm.add_args('-kernel', self.kernel_path) + server_vm.add_args('-append', 'console=3DttyS0 root=3D/dev/sda') + server_vm.add_args('-drive', + f"file=3D{self.server_rootfs_path},if=3Dide,format=3Draw,id=3D= drv0") + server_vm.add_args('-snapshot') + server_vm.add_args('-chardev', + f"socket,id=3Dsock0,path=3D{sock_path},telnet=3Doff,server=3Do= n,wait=3Doff") + server_vm.add_args('-device', 'virtio-serial') + server_vm.add_args('-device', + 'virtserialport,chardev=3Dsock0,name=3Dorg.fedoraproject.port.= 0') + + def configure_client_vm_args(self, client_vm, sock_path): + """ + Configuration for the client VM. Point the vfio-user-pci device to= the + socket path configured above. + """ + + client_vm.add_args('-kernel', self.kernel_path) + client_vm.add_args('-append', 'console=3DttyS0 root=3D/dev/sda') + client_vm.add_args('-drive', + f'file=3D{self.client_rootfs_path},if=3Dide,format=3Draw,id=3D= drv0') + client_vm.add_args('-device', + '{"driver":"vfio-user-pci",' + + '"socket":{"path": "%s", "type": "unix"}}' % sock_path) + + def setup_vfio_user_pci_server(self, server_vm): + """ + Start the libvfio-user server within the server VM, and arrange + for data to shuttle between its socket and the virtio serial port. + """ + wait_for_console_pattern(self, 'login:', None, server_vm) + exec_command_and_wait_for_pattern(self, 'root', '#', None, server_= vm) + + exec_command_and_wait_for_pattern(self, + 'gpio-pci-idio-16 -v /tmp/vfio-user.sock >/var/tmp/gpio.out 2>= &1 &', + '#', None, server_vm) + # wait for libvfio-user to initialize properly + exec_command_and_wait_for_pattern(self, 'sleep 5', '#', None, serv= er_vm) + exec_command_and_wait_for_pattern(self, + 'socat UNIX-CONNECT:/tmp/vfio-user.sock /dev/vport0p1,ignoreeo= f ' + + ' &', '#', None, server_vm) + + def test_vfio_user_pci(self): + self.prepare_images() + self.set_machine('pc') + self.require_device('virtio-serial') + self.require_device('vfio-user-pci') + + sock_dir =3D self.socket_dir() + socket_path =3D sock_dir.name + '/vfio-user.sock' + socket_path =3D '/tmp/vfio-user.sock' + + server_vm =3D self.get_vm(name=3D'server') + server_vm.set_console() + self.configure_server_vm_args(server_vm, socket_path) + + server_vm.launch() + + self.log.debug('starting libvfio-user server') + + self.setup_vfio_user_pci_server(server_vm) + + client_vm =3D self.get_vm(name=3D"client") + client_vm.set_console() + self.configure_client_vm_args(client_vm, socket_path) + + try: + client_vm.launch() + except: + self.log.error('client VM failed to start, dumping server logs= ') + exec_command_and_wait_for_pattern(self, 'cat /var/tmp/gpio.out= ', + '#', None, server_vm) + raise + + self.log.debug('waiting for client VM boot') + + wait_for_console_pattern(self, 'login:', None, client_vm) + exec_command_and_wait_for_pattern(self, 'root', '#', None, client_= vm) + + # + # Here, we'd like to actually interact with the gpio device a litt= le + # more as described at: + # + # https://github.com/nutanix/libvfio-user/blob/master/docs/qemu.md + # + # Unfortunately, the buildroot Linux kernel has some undiagnosed i= ssue + # so we don't get /sys/class/gpio. Nonetheless just the basic + # initialization and setup is enough for basic testing of vfio-use= r. + # + + self.log.debug('collecting libvfio-user server output') + + out =3D exec_command_and_wait_for_pattern(self, + 'cat /var/tmp/gpio.out', + 'gpio: region2: wrote 0 to (0x1:1)', + None, server_vm) + + pattern =3D re.compile(r'^gpio:') + + gpio_server_out =3D [s for s in out.decode().splitlines() + if pattern.search(s)] + + for line in EXPECTED_SERVER_LINES: + if line not in gpio_server_out: + self.log.error(f'Missing server debug line: {line}') + self.fail(False) + + +if __name__ =3D=3D '__main__': + QemuSystemTest.main() --=20 2.43.0