From nobody Mon Dec 1 22:34:43 2025 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 02B6A34AB1E for ; Wed, 26 Nov 2025 23:18:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764199090; cv=none; b=n2R1X6YAg0VbsYqSg7OjAeCDr3jOwseYSL6R+9wlbaP+toTdBZfiAiPDF/peWPG8HQsJwRbjUVxneJmoMMQap4UUUFqaNM1r+q4Dxg4+3EztOmHhYvmqOoa+01+xSDE9BsunEZ2TTwgewLIcLLeH7LOjiwvZfvBhnx4Rto/88wE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764199090; c=relaxed/simple; bh=mHWkVELCLixotZVit8t/1VqG3neOYudLJ7M3gFcDoEo=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=NVtEJ+VaZBuZaRg9oGY+5B5H5F2hbshC1fvTczIiumy4dp+9dTmweSwBepgbABY8o2NcYbuD3D78cNygajd1AGKa0W3QBpA9dhEOo9tp1yQI6YX63ksFMNm8HFKlNiWUzNDGLIkCGe5ZscZmALn+rq5f7clqn58B6m3aY6QByLk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--dmatlack.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=XLURi8/z; arc=none smtp.client-ip=209.85.210.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--dmatlack.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="XLURi8/z" Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-7bad1cef9bcso363095b3a.1 for ; Wed, 26 Nov 2025 15:18:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1764199085; x=1764803885; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=6reQFbvrUZJXcTjumNZF0meA3bbLjKU7IXXVzkqzCAw=; b=XLURi8/zPB3bIqhjlaNNF/2i43TMBb0vdST9yXVz3m2BtumjKOII8bk5ck8EzzphYz 4OC1HRaqaDw8qilQtMqPFyRXf39kgkcNKdQBmEtVd2whPcHORDso5XpmlgalBgEGiYkm bGpfqJj5+Azes3qMM4TvGFugbr9AEGB708VFu7qBJqTrIFn8A+BSPda/9S/r5HeizLpe OpaDwZtNLlDrStKEEd5+ZDLfbx8+HnVNVO32Ej7i6ccs5XFPfqb9t7T2pT7NXuqql+me kx/CfJibs5Eg5NOwmd8Rcz58yPi1xFkEdZ4y/U5WOUV3nqagdeP97//xj30bZIzm5+LV JKaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764199085; x=1764803885; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=6reQFbvrUZJXcTjumNZF0meA3bbLjKU7IXXVzkqzCAw=; b=n4kSZ0SYzKwDXh+ocdc5OmfjO37FtSt3oapQ3oRpV6ry1kIZWiCOWE95/jxB6FKotx VLqA8062dtezMtTZ4UpmnwzGuxMkZ7Ps6heF3d1HyuLaB7PPUMBMPSl9IhIH9KTWK2KO Q8gJ++iKw11WOwtrYB16frcAaGt9SigaBlM5ttFjTJXnHU8BOVC3KnobyNUJMCuSpe0i ool6aqSE9asnp7MfgssgsfUS9Glb4mW2NQYLBeSGDuGOCUR2wnBmuKW2F4qN3GWzaqIW DRKid83J7QHuzixqbdb46N6i0REFaSLQ4v/7/GTaJ3p/eepkzMZNLMckzEwhZLOf8082 hhNA== X-Forwarded-Encrypted: i=1; AJvYcCUFxPab9NaJTTBMkrLMwbuHL+GfWJaE8PEvifbZulWOOArHwHa85/Vc6MxkOUNBGz5yMEJ6IsJfFqzoHJU=@vger.kernel.org X-Gm-Message-State: AOJu0YyZPoG8jraFAlbgccVBzCeJYqUZSiR/cY8EctWlLy+Aj8ZIV/uz NXrBUFokiMb9HJBAD04X/n+Qdb+TjDiG0BJoF64LVTpN+oRaA+t1UC95tKCpC1OvABWYPaiLGGg J5kwLO6xGjc6DCQ== X-Google-Smtp-Source: AGHT+IG3GxAKkWHj5AWb96zXVeX3HY/XVBXQ75qdWHAYcJ4/MKD78Ict7QBDsMZ6sYSSwfs3VrSNhRFYjzx5fw== X-Received: from pfcy27.prod.google.com ([2002:a05:6a00:93db:b0:7b8:642b:1d94]) (user=dmatlack job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:9508:b0:7aa:9ca5:da9c with SMTP id d2e1a72fcca58-7c58e50cc8dmr21906021b3a.22.1764199085213; Wed, 26 Nov 2025 15:18:05 -0800 (PST) Date: Wed, 26 Nov 2025 23:17:30 +0000 In-Reply-To: <20251126231733.3302983-1-dmatlack@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251126231733.3302983-1-dmatlack@google.com> X-Mailer: git-send-email 2.52.0.487.g5c8c507ade-goog Message-ID: <20251126231733.3302983-16-dmatlack@google.com> Subject: [PATCH v4 15/18] vfio: selftests: Move vfio_selftests_*() helpers into libvfio.c From: David Matlack To: Alex Williamson Cc: Alex Mastro , David Matlack , Jason Gunthorpe , Josh Hilke , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Raghavendra Rao Ananta , Vipin Sharma Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Move the vfio_selftests_*() helpers into their own file libvfio.c. These helpers have nothing to do with struct vfio_pci_device, so they don't make sense in vfio_pci_device.c. No functional change intended. Reviewed-by: Alex Mastro Tested-by: Alex Mastro Reviewed-by: Raghavendra Rao Ananta Signed-off-by: David Matlack --- tools/testing/selftests/vfio/lib/libvfio.c | 78 +++++++++++++++++++ tools/testing/selftests/vfio/lib/libvfio.mk | 1 + .../selftests/vfio/lib/vfio_pci_device.c | 71 ----------------- 3 files changed, 79 insertions(+), 71 deletions(-) create mode 100644 tools/testing/selftests/vfio/lib/libvfio.c diff --git a/tools/testing/selftests/vfio/lib/libvfio.c b/tools/testing/sel= ftests/vfio/lib/libvfio.c new file mode 100644 index 000000000000..a23a3cc5be69 --- /dev/null +++ b/tools/testing/selftests/vfio/lib/libvfio.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include +#include + +#include "../../../kselftest.h" +#include + +static bool is_bdf(const char *str) +{ + unsigned int s, b, d, f; + int length, count; + + count =3D sscanf(str, "%4x:%2x:%2x.%2x%n", &s, &b, &d, &f, &length); + return count =3D=3D 4 && length =3D=3D strlen(str); +} + +static char **get_bdfs_cmdline(int *argc, char *argv[], int *nr_bdfs) +{ + int i; + + for (i =3D *argc - 1; i > 0 && is_bdf(argv[i]); i--) + continue; + + i++; + *nr_bdfs =3D *argc - i; + *argc -=3D *nr_bdfs; + + return *nr_bdfs ? &argv[i] : NULL; +} + +static char *get_bdf_env(void) +{ + char *bdf; + + bdf =3D getenv("VFIO_SELFTESTS_BDF"); + if (!bdf) + return NULL; + + VFIO_ASSERT_TRUE(is_bdf(bdf), "Invalid BDF: %s\n", bdf); + return bdf; +} + +char **vfio_selftests_get_bdfs(int *argc, char *argv[], int *nr_bdfs) +{ + static char *env_bdf; + char **bdfs; + + bdfs =3D get_bdfs_cmdline(argc, argv, nr_bdfs); + if (bdfs) + return bdfs; + + env_bdf =3D get_bdf_env(); + if (env_bdf) { + *nr_bdfs =3D 1; + return &env_bdf; + } + + fprintf(stderr, "Unable to determine which device(s) to use, skipping tes= t.\n"); + fprintf(stderr, "\n"); + fprintf(stderr, "To pass the device address via environment variable:\n"); + fprintf(stderr, "\n"); + fprintf(stderr, " export VFIO_SELFTESTS_BDF=3D\"segment:bus:device.fun= ction\"\n"); + fprintf(stderr, " %s [options]\n", argv[0]); + fprintf(stderr, "\n"); + fprintf(stderr, "To pass the device address(es) via argv:\n"); + fprintf(stderr, "\n"); + fprintf(stderr, " %s [options] segment:bus:device.function ...\n", arg= v[0]); + fprintf(stderr, "\n"); + exit(KSFT_SKIP); +} + +const char *vfio_selftests_get_bdf(int *argc, char *argv[]) +{ + int nr_bdfs; + + return vfio_selftests_get_bdfs(argc, argv, &nr_bdfs)[0]; +} diff --git a/tools/testing/selftests/vfio/lib/libvfio.mk b/tools/testing/se= lftests/vfio/lib/libvfio.mk index f15b966877e9..9f47bceed16f 100644 --- a/tools/testing/selftests/vfio/lib/libvfio.mk +++ b/tools/testing/selftests/vfio/lib/libvfio.mk @@ -5,6 +5,7 @@ LIBVFIO_SRCDIR :=3D $(selfdir)/vfio/lib =20 LIBVFIO_C :=3D iommu.c LIBVFIO_C +=3D iova_allocator.c +LIBVFIO_C +=3D libvfio.c LIBVFIO_C +=3D vfio_pci_device.c LIBVFIO_C +=3D vfio_pci_driver.c =20 diff --git a/tools/testing/selftests/vfio/lib/vfio_pci_device.c b/tools/tes= ting/selftests/vfio/lib/vfio_pci_device.c index 847e27e1166c..13fdb4b0b10f 100644 --- a/tools/testing/selftests/vfio/lib/vfio_pci_device.c +++ b/tools/testing/selftests/vfio/lib/vfio_pci_device.c @@ -376,74 +376,3 @@ void vfio_pci_device_cleanup(struct vfio_pci_device *d= evice) =20 free(device); } - -static bool is_bdf(const char *str) -{ - unsigned int s, b, d, f; - int length, count; - - count =3D sscanf(str, "%4x:%2x:%2x.%2x%n", &s, &b, &d, &f, &length); - return count =3D=3D 4 && length =3D=3D strlen(str); -} - -static char **get_bdfs_cmdline(int *argc, char *argv[], int *nr_bdfs) -{ - int i; - - for (i =3D *argc - 1; i > 0 && is_bdf(argv[i]); i--) - continue; - - i++; - *nr_bdfs =3D *argc - i; - *argc -=3D *nr_bdfs; - - return *nr_bdfs ? &argv[i] : NULL; -} - -static char *get_bdf_env(void) -{ - char *bdf; - - bdf =3D getenv("VFIO_SELFTESTS_BDF"); - if (!bdf) - return NULL; - - VFIO_ASSERT_TRUE(is_bdf(bdf), "Invalid BDF: %s\n", bdf); - return bdf; -} - -char **vfio_selftests_get_bdfs(int *argc, char *argv[], int *nr_bdfs) -{ - static char *env_bdf; - char **bdfs; - - bdfs =3D get_bdfs_cmdline(argc, argv, nr_bdfs); - if (bdfs) - return bdfs; - - env_bdf =3D get_bdf_env(); - if (env_bdf) { - *nr_bdfs =3D 1; - return &env_bdf; - } - - fprintf(stderr, "Unable to determine which device(s) to use, skipping tes= t.\n"); - fprintf(stderr, "\n"); - fprintf(stderr, "To pass the device address via environment variable:\n"); - fprintf(stderr, "\n"); - fprintf(stderr, " export VFIO_SELFTESTS_BDF=3D\"segment:bus:device.fun= ction\"\n"); - fprintf(stderr, " %s [options]\n", argv[0]); - fprintf(stderr, "\n"); - fprintf(stderr, "To pass the device address(es) via argv:\n"); - fprintf(stderr, "\n"); - fprintf(stderr, " %s [options] segment:bus:device.function ...\n", arg= v[0]); - fprintf(stderr, "\n"); - exit(KSFT_SKIP); -} - -const char *vfio_selftests_get_bdf(int *argc, char *argv[]) -{ - int nr_bdfs; - - return vfio_selftests_get_bdfs(argc, argv, &nr_bdfs)[0]; -} --=20 2.52.0.487.g5c8c507ade-goog