From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38304) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dJKGH-0000e8-2q for qemu-devel@nongnu.org; Fri, 09 Jun 2017 09:47:40 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dJKGF-0003Xy-Ed for qemu-devel@nongnu.org; Fri, 09 Jun 2017 09:47:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:51298) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dJKGE-0003Wz-VQ for qemu-devel@nongnu.org; Fri, 09 Jun 2017 09:47:35 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E53F64DD62 for ; Fri, 9 Jun 2017 13:47:33 +0000 (UTC) From: Markus Armbruster Date: Fri, 9 Jun 2017 15:46:55 +0200 Message-Id: <1497016045-6009-12-git-send-email-armbru@redhat.com> In-Reply-To: <1497016045-6009-1-git-send-email-armbru@redhat.com> References: <1497016045-6009-1-git-send-email-armbru@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PULL 11/41] qapi: update the qobject visitor to use QNUM_U64 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= From: Marc-Andr=C3=A9 Lureau Switch to use QNum/uint where appropriate to remove i64 limitation. The input visitor will cast i64 input to u64 for compatibility reasons (existing json QMP client already use negative i64 for large u64, and expect an implicit cast in qemu). Note: before the patch, uint64_t values above INT64_MAX are sent over json QMP as negative values, e.g. UINT64_MAX is sent as -1. After the patch, they are sent unmodified. Clearly a bug fix, but we have to consider compatibility issues anyway. libvirt should cope fine, because its parsing of unsigned integers accepts negative values modulo 2^64. There's hope that other clients will, too. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Markus Armbruster Message-Id: <20170607163635.17635-12-marcandre.lureau@redhat.com> [check_native_list() tweaked for consistency with signed case] Signed-off-by: Markus Armbruster --- hw/i386/acpi-build.c | 2 +- qapi/qobject-input-visitor.c | 21 ++++++++++++++++----- qapi/qobject-output-visitor.c | 3 +-- tests/test-qobject-input-visitor.c | 7 ++----- tests/test-qobject-output-visitor.c | 22 ++++++++++++++++++---- 5 files changed, 38 insertions(+), 17 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index d7d2b65..3eb4367 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2614,7 +2614,7 @@ static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg) if (!o) { return false; } - mcfg->mcfg_base =3D qnum_get_int(qobject_to_qnum(o)); + mcfg->mcfg_base =3D qnum_get_uint(qobject_to_qnum(o)); qobject_decref(o); =20 o =3D object_property_get_qobject(pci_host, PCIE_HOST_MCFG_SIZE, NUL= L); diff --git a/qapi/qobject-input-visitor.c b/qapi/qobject-input-visitor.c index 539b3b8..35aff78 100644 --- a/qapi/qobject-input-visitor.c +++ b/qapi/qobject-input-visitor.c @@ -417,7 +417,6 @@ static void qobject_input_type_int64_keyval(Visitor *= v, const char *name, static void qobject_input_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp) { - /* FIXME: qobject_to_qnum mishandles values over INT64_MAX */ QObjectInputVisitor *qiv =3D to_qiv(v); QObject *qobj =3D qobject_input_get_object(qiv, name, true, errp); QNum *qnum; @@ -427,11 +426,23 @@ static void qobject_input_type_uint64(Visitor *v, c= onst char *name, return; } qnum =3D qobject_to_qnum(qobj); - if (!qnum || !qnum_get_try_int(qnum, &val)) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, - full_name(qiv, name), "integer"); + if (!qnum) { + goto err; } - *obj =3D val; + + if (qnum_get_try_uint(qnum, obj)) { + return; + } + + /* Need to accept negative values for backward compatibility */ + if (qnum_get_try_int(qnum, &val)) { + *obj =3D val; + return; + } + +err: + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, + full_name(qiv, name), "uint64"); } =20 static void qobject_input_type_uint64_keyval(Visitor *v, const char *nam= e, diff --git a/qapi/qobject-output-visitor.c b/qapi/qobject-output-visitor.= c index 2ca5093..70be84c 100644 --- a/qapi/qobject-output-visitor.c +++ b/qapi/qobject-output-visitor.c @@ -150,9 +150,8 @@ static void qobject_output_type_int64(Visitor *v, con= st char *name, static void qobject_output_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp) { - /* FIXME values larger than INT64_MAX become negative */ QObjectOutputVisitor *qov =3D to_qov(v); - qobject_output_add(qov, name, qnum_from_int(*obj)); + qobject_output_add(qov, name, qnum_from_uint(*obj)); } =20 static void qobject_output_type_bool(Visitor *v, const char *name, bool = *obj, diff --git a/tests/test-qobject-input-visitor.c b/tests/test-qobject-inpu= t-visitor.c index 928cc26..34bab8a 100644 --- a/tests/test-qobject-input-visitor.c +++ b/tests/test-qobject-input-visitor.c @@ -123,7 +123,6 @@ static void test_visitor_in_int(TestInputVisitorData = *data, static void test_visitor_in_uint(TestInputVisitorData *data, const void *unused) { - Error *err =3D NULL; uint64_t res =3D 0; int64_t i64; double dbl; @@ -147,12 +146,10 @@ static void test_visitor_in_uint(TestInputVisitorDa= ta *data, visit_type_uint64(v, NULL, &res, &error_abort); g_assert_cmpuint(res, =3D=3D, (uint64_t)-value); =20 - /* BUG: value between INT64_MAX+1 and UINT64_MAX rejected */ - v =3D visitor_input_test_init(data, "18446744073709551574"); =20 - visit_type_uint64(v, NULL, &res, &err); - error_free_or_abort(&err); + visit_type_uint64(v, NULL, &res, &error_abort); + g_assert_cmpuint(res, =3D=3D, 18446744073709551574U); =20 visit_type_number(v, NULL, &dbl, &error_abort); g_assert_cmpfloat(dbl, =3D=3D, 18446744073709552000.0); diff --git a/tests/test-qobject-output-visitor.c b/tests/test-qobject-out= put-visitor.c index a16c8f6..749c540 100644 --- a/tests/test-qobject-output-visitor.c +++ b/tests/test-qobject-output-visitor.c @@ -602,14 +602,28 @@ static void check_native_list(QObject *qobj, qlist =3D qlist_copy(qobject_to_qlist(qdict_get(qdict, "data"))); =20 switch (kind) { - case USER_DEF_NATIVE_LIST_UNION_KIND_S8: - case USER_DEF_NATIVE_LIST_UNION_KIND_S16: - case USER_DEF_NATIVE_LIST_UNION_KIND_S32: - case USER_DEF_NATIVE_LIST_UNION_KIND_S64: case USER_DEF_NATIVE_LIST_UNION_KIND_U8: case USER_DEF_NATIVE_LIST_UNION_KIND_U16: case USER_DEF_NATIVE_LIST_UNION_KIND_U32: case USER_DEF_NATIVE_LIST_UNION_KIND_U64: + for (i =3D 0; i < 32; i++) { + QObject *tmp; + QNum *qvalue; + uint64_t val; + + tmp =3D qlist_peek(qlist); + g_assert(tmp); + qvalue =3D qobject_to_qnum(tmp); + g_assert(qnum_get_try_uint(qvalue, &val)); + g_assert_cmpint(val, =3D=3D, i); + qobject_decref(qlist_pop(qlist)); + } + break; + + case USER_DEF_NATIVE_LIST_UNION_KIND_S8: + case USER_DEF_NATIVE_LIST_UNION_KIND_S16: + case USER_DEF_NATIVE_LIST_UNION_KIND_S32: + case USER_DEF_NATIVE_LIST_UNION_KIND_S64: /* * All integer elements in JSON arrays get stored into QNums * when we convert to QObjects, so we can check them all in --=20 2.7.5