only warn once about it. - kernel without kvm:
# make check-qtest-x86_64 GTESTER check-qtest-x86_64 Could not access KVM kernel module: No such device qemu-system-x86_64: failed to initialize KVM: No such device qemu-system-x86_64: Back to tcg accelerator - tests ran as user: $ make check-qtest-x86_64 GTESTER check-qtest-x86_64 Could not access KVM kernel module: Permission denied qemu-system-x86_64: failed to initialize KVM: Permission denied qemu-system-x86_64: Back to tcg accelerator Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- tests/libqtest.h | 8 ++++++++ tests/libqtest.c | 18 ++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/tests/libqtest.h b/tests/libqtest.h index 38bc1e9953..24e03148eb 100644 --- a/tests/libqtest.h +++ b/tests/libqtest.h @@ -927,4 +927,12 @@ QDict *qmp_fd(int fd, const char *fmt, ...); */ void qtest_cb_for_every_machine(void (*cb)(const char *machine)); +/** + * qtest_accel: + * @accel: List of accelerators + * + * Filter accelerators accessible on the host. + */ +const char *qtest_accel(const char *accel); + #endif diff --git a/tests/libqtest.c b/tests/libqtest.c index b9a1f180e1..d2dfca35a3 100644 --- a/tests/libqtest.c +++ b/tests/libqtest.c @@ -987,3 +987,21 @@ void qtest_cb_for_every_machine(void (*cb)(const char *machine)) qtest_end(); QDECREF(response); } + +const char *qtest_accel(const char *accel) +{ + static bool kvm_accessible = true; + + if (strlen(accel) <= 4 || strncmp(accel, "kvm:", 4)) { + return accel; /* no match */ + } + + if (!kvm_accessible || !access("/dev/kvm", W_OK)) { + accel += 4; /* skip "kvm:" */ + if (kvm_accessible) { + kvm_accessible = false; /* warn once */ + g_printerr("kvm not accessible, using %s\n", accel); + } + } + return accel; +} -- 2.14.1