diff options
| -rw-r--r-- | tools/testing/selftests/vfio/lib/include/vfio_util.h | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/vfio/lib/vfio_pci_device.c | 57 |
2 files changed, 48 insertions, 11 deletions
diff --git a/tools/testing/selftests/vfio/lib/include/vfio_util.h b/tools/testing/selftests/vfio/lib/include/vfio_util.h index 69ec0c856481..0b9a5628d23e 100644 --- a/tools/testing/selftests/vfio/lib/include/vfio_util.h +++ b/tools/testing/selftests/vfio/lib/include/vfio_util.h @@ -208,6 +208,8 @@ struct iova_allocator { * If BDF cannot be determined then the test will exit with KSFT_SKIP. */ const char *vfio_selftests_get_bdf(int *argc, char *argv[]); +char **vfio_selftests_get_bdfs(int *argc, char *argv[], int *nr_bdfs); + const char *vfio_pci_get_cdev_path(const char *bdf); extern const char *default_iommu_mode; diff --git a/tools/testing/selftests/vfio/lib/vfio_pci_device.c b/tools/testing/selftests/vfio/lib/vfio_pci_device.c index b479a359da12..eda8f14de797 100644 --- a/tools/testing/selftests/vfio/lib/vfio_pci_device.c +++ b/tools/testing/selftests/vfio/lib/vfio_pci_device.c @@ -868,29 +868,64 @@ static bool is_bdf(const char *str) return count == 4 && length == strlen(str); } -const char *vfio_selftests_get_bdf(int *argc, char *argv[]) +static char **get_bdfs_cmdline(int *argc, char *argv[], int *nr_bdfs) { - char *bdf; + int i; - if (*argc > 1 && is_bdf(argv[*argc - 1])) - return argv[--(*argc)]; + for (i = *argc - 1; i > 0 && is_bdf(argv[i]); i--) + continue; + + i++; + *nr_bdfs = *argc - i; + *argc -= *nr_bdfs; + + return *nr_bdfs ? &argv[i] : NULL; +} + +static char *get_bdf_env(void) +{ + char *bdf; bdf = getenv("VFIO_SELFTESTS_BDF"); - if (bdf) { - VFIO_ASSERT_TRUE(is_bdf(bdf), "Invalid BDF: %s\n", bdf); - return 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 = get_bdfs_cmdline(argc, argv, nr_bdfs); + if (bdfs) + return bdfs; + + env_bdf = get_bdf_env(); + if (env_bdf) { + *nr_bdfs = 1; + return &env_bdf; } - fprintf(stderr, "Unable to determine which device to use, skipping test.\n"); + fprintf(stderr, "Unable to determine which device(s) to use, skipping test.\n"); fprintf(stderr, "\n"); fprintf(stderr, "To pass the device address via environment variable:\n"); fprintf(stderr, "\n"); - fprintf(stderr, " export VFIO_SELFTESTS_BDF=segment:bus:device.function\n"); + fprintf(stderr, " export VFIO_SELFTESTS_BDF=\"segment:bus:device.function\"\n"); fprintf(stderr, " %s [options]\n", argv[0]); fprintf(stderr, "\n"); - fprintf(stderr, "To pass the device address via argv:\n"); + fprintf(stderr, "To pass the device address(es) via argv:\n"); fprintf(stderr, "\n"); - fprintf(stderr, " %s [options] segment:bus:device.function\n", argv[0]); + fprintf(stderr, " %s [options] segment:bus:device.function ...\n", argv[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]; +} |