From patchwork Thu Feb 22 22:22:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gustavo Romero X-Patchwork-Id: 774920 Delivered-To: patch@linaro.org Received: by 2002:adf:a356:0:b0:33b:4db1:f5b3 with SMTP id d22csp76853wrb; Thu, 22 Feb 2024 14:25:48 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCXDdP4FAYlUoBSGc104SpANOH/kToLR3gRkNrLTIqH3N6LS6ASOdLTEk7Fg5krYFoKfWW+8ADN9kgHKuf4VDsL5 X-Google-Smtp-Source: AGHT+IFtWLsfoxrweBBRf1GbFrOk6/dCAavTJqb4q3oHxul3DZwtZ8OoCFYxLzaO8n/gPUCealfl X-Received: by 2002:a05:620a:1a94:b0:785:c16e:181c with SMTP id bl20-20020a05620a1a9400b00785c16e181cmr787237qkb.10.1708640748710; Thu, 22 Feb 2024 14:25:48 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1708640748; cv=none; d=google.com; s=arc-20160816; b=sCmykt3/V5tKRg6tUO9gRawuBuHmHfiauteKsTuuYrvpgBAhMEUzj31RZXU/51IQoH YSH6x80MPhKRV/IrthrYdsUkGMDrGgDW4PTXqXmvk3AoBOpoLGMX7LZegXc6rvmM5W1X RhIgAPjHEW60jNOVcbzzCGv2bRsNKP1DUUfaTYydvmV6Xp6UqHD92dwj8pvveUya/JgP eBFPRuvBU/bglPTIVii7wGG0aUHQs86eKHOEsu9vxSqILv1mlnpJXBUWpgK7XXQHK+hP +fo+rrkjViwxLrtEMCAaTLdBy5gpgYae4TluFZNeCJydYtQg3KGM6x31EdRwlYt/PyHY V9Aw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=gEU9egN9+/NfXTjj920HZmiXCFvNCQE5eANcITvsGZ4=; fh=FwJ41ag6ReWcl5sLmX4YL9yVV2DrcCZ6yOxRDQfQdJE=; b=ct4kz1CZHnbWIGWvPiS/+rTYsoBanJ2wG1qXHjpSanQ1flZ4uS0yxqfScrWnVs/I4B vqakz4uf7yUC835d/fND43EwwY0KoCnyEhudxmCbj2Nc9eeKlZceqEIvBxmM73ndkdhC WXkVMKmdiArLTvpZGcGEWJTtflWIKnsZV1peKXSWi30/f5+DEGrYxg0ygTSY3+I8H/e/ IJwW0fff/f1XFIYsF/ie0VR+qnzsIkgG19hmaS9+TlnFlZBBD7RYFajuYruQ9xtaUfVm QOV33kKM9Ie6Z3ab/BLQrmoEJFT0aplz2GYI709Fnw3juytIaIj4vhgVXwfPY8LmSyka Qh+A==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=GFIJ4+XW; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id vw22-20020a05620a565600b00787aca2fd12si751911qkn.581.2024.02.22.14.25.48 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 22 Feb 2024 14:25:48 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=GFIJ4+XW; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rdHUh-0002ht-0f; Thu, 22 Feb 2024 17:24:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rdHUe-0002go-S2 for qemu-devel@nongnu.org; Thu, 22 Feb 2024 17:24:40 -0500 Received: from mail-pl1-x62e.google.com ([2607:f8b0:4864:20::62e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rdHUc-0003Dy-Hg for qemu-devel@nongnu.org; Thu, 22 Feb 2024 17:24:40 -0500 Received: by mail-pl1-x62e.google.com with SMTP id d9443c01a7336-1dc3b4b9b62so2717545ad.1 for ; Thu, 22 Feb 2024 14:24:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1708640677; x=1709245477; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=gEU9egN9+/NfXTjj920HZmiXCFvNCQE5eANcITvsGZ4=; b=GFIJ4+XWUfjW25jAznwolT4AKarz/4gK4BLV6FokPfabpBX6wcvHWhlKxjoIlMZh2Z O+qcpvlRikRa4XN81JJqa3h57N0pxZorQapD+MJY5Az+meAQ/dHhV4skwBZxthDOxJc4 9twkHF+9VvAwxNEd+G94VxUxABSlLlTxt+/t7h0S2ocMPKExy5OkxEjHXWbYMfPwl8fe gtkiRMYRaL38W7YpxXppi8mMxcuEAHnjx6U55ZJy2Er3IoV4PupusHdy5Afpdi3ADulm E5HWAnrZ5kkiiB1KL4/EWQnh0jcy/j0+4DTODa3eSCkDZIKk03gdMssxKg+SLkq3DqqB BtHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708640677; x=1709245477; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gEU9egN9+/NfXTjj920HZmiXCFvNCQE5eANcITvsGZ4=; b=Qi29ikw9ma3j+h/TFZehvKnCROzNzRmNFHodeGnaRXQdyAjkhU0sZ8pKq1of+J8vTR SZcwbmVnIRyE5x7bfUkbu2Qp6xkNly0Su5m2LioB31M+dDUXwQb44vQhryjwUpkUzLTr 6wACkM/RYzx2cpE235IMR9/0I5naeMZRo5vaoxzGWAggfYqv14kjv3Wo+w7zj/7oz1fz /jFNDCuNTzVpu+c12+zItC3vsrLlYOQ2MlomEetLW83yWtZ9U5MjNg+mNddPhiXU9wVD zYkbrW9lft9d50plvFcO8uTjBBb7Rz/IayaZA89MrVjr2X6XGkmfXJUVrbUvsrQZCEEU tjDg== X-Gm-Message-State: AOJu0Yxfcm816v4clUU25d6SA8OUBVc/rPWsxhC6RDhivJssgmRgsbZn VzPGRjQ9pvKK60VPKZlfopOk5jdadSOc0g9uSOH93A9U38TFRW1hhOUrcEoN3NrqUTvGPle6TPG OCps= X-Received: by 2002:a17:902:e890:b0:1db:e514:1cfd with SMTP id w16-20020a170902e89000b001dbe5141cfdmr518768plg.21.1708640676599; Thu, 22 Feb 2024 14:24:36 -0800 (PST) Received: from amd.. ([2804:7f0:b400:285a:3e7c:3fff:fe7a:e83b]) by smtp.gmail.com with ESMTPSA id ji7-20020a170903324700b001d7057c2fbasm10457210plb.100.2024.02.22.14.24.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Feb 2024 14:24:35 -0800 (PST) From: Gustavo Romero To: qemu-devel@nongnu.org, philmd@linaro.org Cc: thuth@redhat.com, lvivier@redhat.com, qemu-arm@nongnu.org, alex.bennee@linaro.org, pbonzini@redhat.com, anton.kochkov@proton.me, richard.henderson@linaro.org, peter.maydell@linaro.org, gustavo.romero@linaro.org Subject: [PATCH 6/6] tests/qtest: Add ivshmem-flat test Date: Thu, 22 Feb 2024 22:22:18 +0000 Message-Id: <20240222222218.2261956-7-gustavo.romero@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240222222218.2261956-1-gustavo.romero@linaro.org> References: <20240222222218.2261956-1-gustavo.romero@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62e; envelope-from=gustavo.romero@linaro.org; helo=mail-pl1-x62e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org This commit adds a qtest for the ivshmem-flat device to test memory sharing, IRQ triggering, and the memory mapped registers in the device. Based-on: https://lists.gnu.org/archive/html/qemu-devel/2023-11/msg03176.html Message-ID: <20231127052024.435743-4-gustavo.romero@linaro.org> Signed-off-by: Philippe Mathieu-Daudé Signed-off-by: Gustavo Romero Acked-by: Thomas Huth --- tests/qtest/ivshmem-flat-test.c | 338 ++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 2 + 2 files changed, 340 insertions(+) create mode 100644 tests/qtest/ivshmem-flat-test.c diff --git a/tests/qtest/ivshmem-flat-test.c b/tests/qtest/ivshmem-flat-test.c new file mode 100644 index 0000000000..b6f59bba54 --- /dev/null +++ b/tests/qtest/ivshmem-flat-test.c @@ -0,0 +1,338 @@ +/* + * Inter-VM Shared Memory Flat Device qtests + * + * SPDX-FileCopyrightText: 2023 Linaro Ltd. + * SPDX-FileContributor: Gustavo Romero + * SPDX-License-Identifier: GPL-2.0-or-later + * + */ + +#include "ivshmem-utils.h" + +#define IVSHMEM_FLAT_MMR_ADDR 0x400FF000 +#define IVSHMEM_FLAT_SHM_ADDR 0x40100000 +#define SHM_SIZE 131072 /* 128k */ + +static ServerThread thread; + +uint32_t *shm_ptr; +char *shm_rel_path; +char *server_socket_path; + +static void cleanup(void) +{ + if (shm_ptr) { + munmap(shm_ptr, SHM_SIZE); + shm_ptr = NULL; + } + + if (shm_rel_path) { + shm_unlink(shm_rel_path); + shm_rel_path = NULL; + } + + if (server_socket_path) { + unlink(server_socket_path); + server_socket_path = NULL; + } +} + +static void abort_handler(void *data) +{ + test_ivshmem_server_stop(&thread); + cleanup(); +} + +/* + * Check if exactly 1 positive pulse (low->high->low) on 'irq' qtest IRQ line + * happens. N.B.: 'irq' must be intercepted using qtest_irq_intercept_* before + * this function can be used on it. It returns 0 when pulse is detected, + * otherwise 1. + */ +static int test_ivshmem_flat_irq_positive_pulse(QTestState *qts, int irq) +{ + uint64_t num_raises = 0; + uint64_t num_lows = 0; + int attempts = 0; + + while (attempts < 5) { + num_raises = qtest_get_irq_raised_counter(qts, 0); + if (num_raises) { + num_lows = qtest_get_irq_lowered_counter(qts, 0); + /* Check for exactly 1 raise and 1 low IRQ event */ + if (num_raises == num_lows && num_lows == 1) { + return 0; /* Pulse detected */ + } + } + + g_usleep(10000); + attempts++; + } + + g_message("%s: Timeout expired", __func__); + return 1; +} + +static inline uint32_t read_reg(QTestState *qts, enum Reg reg) +{ + uint32_t v; + + qtest_memread(qts, IVSHMEM_FLAT_MMR_ADDR + reg, &v, sizeof(v)); + + return v; +} + +static inline void write_reg(QTestState *qts, enum Reg reg, uint32_t v) +{ + qtest_memwrite(qts, IVSHMEM_FLAT_MMR_ADDR + reg, &v, sizeof(v)); +} + +/* + * Setup a test VM with ivshmem-flat device attached, IRQ properly set, and + * connected to the ivshmem-server. + */ +static QTestState *setup_vm(void) +{ + QTestState *qts; + const char *cmd_line; + + /* + * x-bus-address-{iomem,shmem} are just random addresses that don't conflict + * with any other address in the lm3s6965evb machine. shmem-size used is + * much smaller than the ivshmem server default (4 MiB) to save memory + * resources when testing. + */ + cmd_line = g_strdup_printf("-machine lm3s6965evb " + "-chardev socket,path=%s,id=ivshm " + "-device ivshmem-flat,chardev=ivshm," + "x-irq-qompath='/machine/soc/v7m/nvic/unnamed-gpio-in[0]'," + "x-bus-address-iomem=%#x," + "x-bus-address-shmem=%#x," + "shmem-size=%d", + server_socket_path, + IVSHMEM_FLAT_MMR_ADDR, + IVSHMEM_FLAT_SHM_ADDR, + SHM_SIZE); + + qts = qtest_init(cmd_line); + + return qts; +} + +static void test_ivshmem_flat_irq(void) +{ + QTestState *vm_state; + uint16_t own_id; + + vm_state = setup_vm(); + + qtest_irq_intercept_out_named(vm_state, + "/machine/peripheral-anon/device[0]", + "sysbus-irq"); + + /* IVPOSTION has the device's own ID distributed by the ivshmem-server. */ + own_id = read_reg(vm_state, IVPOSITION); + + /* Make device notify itself. */ + write_reg(vm_state, DOORBELL, (own_id << 16) | 0 /* vector 0 */); + + /* + * Check intercepted device's IRQ output line. 'sysbus-irq' was associated + * to qtest IRQ 0 when intercepted and after self notification qtest IRQ 0 + * must be toggled by the device. The test fails if no toggling is detected. + */ + g_assert(test_ivshmem_flat_irq_positive_pulse(vm_state, + 0 /* qtest IRQ */) == 0); + + qtest_quit(vm_state); +} + +static void test_ivshmem_flat_shm_write(void) +{ + QTestState *vm_state; + int num_elements, i; + uint32_t *data; + + vm_state = setup_vm(); + + /* Prepare test data with random values. */ + data = g_malloc(SHM_SIZE); + num_elements = SHM_SIZE / sizeof(*data); + for (i = 0; i < num_elements; i++) { + data[i] = g_test_rand_int(); + } + + /* + * Write test data to VM address IVSHMEM_FLAT_SHM_ADDR, where the shared + * memory region is located. + */ + qtest_memwrite(vm_state, IVSHMEM_FLAT_SHM_ADDR, data, SHM_SIZE); + + /* + * Since the shared memory fd is mmapped into this test process VMA at + * shm_ptr, every byte written by the VM in its shared memory region should + * also be available in the test process via shm_ptr. Thus, data in shm_ptr + * is compared back against the original test data. + */ + for (i = 0; i < num_elements; i++) { + g_assert_cmpint(shm_ptr[i], ==, data[i]); + } + + qtest_quit(vm_state); +} + +static void test_ivshmem_flat_shm_read(void) +{ + QTestState *vm_state; + int num_elements, i; + uint32_t *data; + uint32_t v; + + vm_state = setup_vm(); + + /* Prepare test data with random values. */ + data = g_malloc(SHM_SIZE); + num_elements = SHM_SIZE / sizeof(*data); + for (i = 0; i < num_elements; i++) { + data[i] = g_test_rand_int(); + } + + /* + * Copy test data to the shared memory region so it can be read from the VM + * (IVSHMEM_FLAT_SHM_ADDR location). + */ + memcpy(shm_ptr, data, SHM_SIZE); + + /* Check data */ + for (i = 0; i < num_elements; i++) { + qtest_memread(vm_state, IVSHMEM_FLAT_SHM_ADDR + i * sizeof(v), &v, + sizeof(v)); + g_assert_cmpint(v, ==, data[i]); + } + + qtest_quit(vm_state); +} + +static void test_ivshmem_flat_shm_pair(void) +{ + QTestState *vm0_state, *vm1_state; + uint16_t vm0_peer_id, vm1_peer_id; + int num_elements, i; + uint32_t *data; + uint32_t v; + + vm0_state = setup_vm(); + vm1_state = setup_vm(); + + /* Get peer ID for the VM so it can be used for one notify each other. */ + vm0_peer_id = read_reg(vm0_state, IVPOSITION); + vm1_peer_id = read_reg(vm1_state, IVPOSITION); + + /* Observe vm1 IRQ output line first. */ + qtest_irq_intercept_out_named(vm1_state, + "/machine/peripheral-anon/device[0]", + "sysbus-irq"); + + /* Notify (interrupt) VM1 from VM0. */ + write_reg(vm0_state, DOORBELL, (vm1_peer_id << 16) | 0 /* vector 0 */); + + /* Check if VM1 IRQ output line is toggled after notification from VM0. */ + g_assert(test_ivshmem_flat_irq_positive_pulse(vm1_state, + 0 /* qtest IRQ */) == 0); + + /* Secondly, observe VM0 IRQ output line first. */ + qtest_irq_intercept_out_named(vm0_state, + "/machine/peripheral-anon/device[0]", + "sysbus-irq"); + + /* ... and do the opposite: notify (interrupt) VM0 from VM1. */ + write_reg(vm1_state, DOORBELL, (vm0_peer_id << 16) | 0 /* vector 0 */); + + /* Check if VM0 IRQ output line is toggled after notification from VM0. */ + g_assert(test_ivshmem_flat_irq_positive_pulse(vm0_state, + 0 /* qtest IRQ */) == 0); + + /* Prepare test data with random values. */ + data = g_malloc(SHM_SIZE); + num_elements = SHM_SIZE / sizeof(*data); + for (i = 0; i < num_elements; i++) { + data[i] = g_test_rand_int(); + } + + /* Write test data on VM0. */ + qtest_memwrite(vm0_state, IVSHMEM_FLAT_SHM_ADDR, data, SHM_SIZE); + + /* Check test data on VM1. */ + for (i = 0; i < num_elements; i++) { + qtest_memread(vm1_state, IVSHMEM_FLAT_SHM_ADDR + i * sizeof(v), &v, + sizeof(v)); + g_assert_cmpint(v, ==, data[i]); + } + + /* Prepare new test data with random values. */ + for (i = 0; i < num_elements; i++) { + data[i] = g_test_rand_int(); + } + + /* Write test data on VM1. */ + qtest_memwrite(vm1_state, IVSHMEM_FLAT_SHM_ADDR, data, SHM_SIZE); + + /* Check test data on VM0. */ + for (i = 0; i < num_elements; i++) { + qtest_memread(vm0_state, IVSHMEM_FLAT_SHM_ADDR + i * sizeof(v), &v, + sizeof(v)); + g_assert_cmpint(v, ==, data[i]); + } + + qtest_quit(vm0_state); + qtest_quit(vm1_state); +} + +int main(int argc, char *argv[]) +{ + int shm_fd, r; + + g_test_init(&argc, &argv, NULL); + + if (!qtest_has_machine("lm3s6965evb")) { + g_test_skip("Machine Stellaris (lm3s6965evb) not found, " + "skipping ivshmem-flat device test."); + return 0; + } + + /* If test fails, stop server, cleanup socket and shm files. */ + qtest_add_abrt_handler(abort_handler, NULL); + + shm_rel_path = mktempshm(SHM_SIZE, &shm_fd); + g_assert(shm_rel_path); + + /* + * Map shm to this test's VMA so it's possible to read/write from/to it. For + * VMs with the ivhsmem-flat device attached, this region will also be + * mapped in their own memory layout, at IVSHMEM_FLAT_SHM_ADDR (default). + */ + shm_ptr = mmap(0, SHM_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0); + g_assert(shm_ptr != MAP_FAILED); + + server_socket_path = mktempsocket(); + /* It never fails, so no assert(). */ + + /* + * Currently, ivshmem-flat device only supports notification via 1 vector, + * i.e. vector 0. + */ + test_ivshmem_server_start(&thread, server_socket_path, shm_rel_path, 1); + + /* Register tests. */ + qtest_add_func("/ivshmem-flat/irq", test_ivshmem_flat_irq); + qtest_add_func("/ivshmem-flat/shm-write", test_ivshmem_flat_shm_write); + qtest_add_func("/ivshmem-flat/shm-read", test_ivshmem_flat_shm_read); + qtest_add_func("/ivshmem-flat/pair", test_ivshmem_flat_shm_pair); + + r = g_test_run(); + + test_ivshmem_server_stop(&thread); + cleanup(); + + return r; +} diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index bc6457220c..c0468bc6e0 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -205,6 +205,7 @@ qtests_stm32l4x5 = \ 'stm32l4x5_syscfg-test'] qtests_arm = \ + (config_all_devices.has_key('CONFIG_IVSHMEM_FLAT_DEVICE') ? ['ivshmem-flat-test'] : []) + \ (config_all_devices.has_key('CONFIG_MPS2') ? ['sse-timer-test'] : []) + \ (config_all_devices.has_key('CONFIG_CMSDK_APB_DUALTIMER') ? ['cmsdk-apb-dualtimer-test'] : []) + \ (config_all_devices.has_key('CONFIG_CMSDK_APB_TIMER') ? ['cmsdk-apb-timer-test'] : []) + \ @@ -320,6 +321,7 @@ qtests = { 'dbus-vmstate-test': files('migration-helpers.c') + dbus_vmstate1, 'erst-test': files('erst-test.c'), 'ivshmem-test': ['ivshmem-utils.c', '../../contrib/ivshmem-server/ivshmem-server.c'], + 'ivshmem-flat-test': ['ivshmem-utils.c', '../../contrib/ivshmem-server/ivshmem-server.c'], 'migration-test': migration_files, 'pxe-test': files('boot-sector.c'), 'qos-test': [chardev, io, qos_test_ss.apply({}).sources()],