From patchwork Mon Jan 24 17:17:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12722563 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 108FBC433EF for ; Mon, 24 Jan 2022 17:38:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241618AbiAXRih (ORCPT ); Mon, 24 Jan 2022 12:38:37 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]:4488 "EHLO frasgout.his.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241578AbiAXRig (ORCPT ); Mon, 24 Jan 2022 12:38:36 -0500 Received: from fraeml734-chm.china.huawei.com (unknown [172.18.147.200]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4JjHDw0HwGz67KsG; Tue, 25 Jan 2022 01:35:12 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml734-chm.china.huawei.com (10.206.15.215) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Mon, 24 Jan 2022 18:38:34 +0100 Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Mon, 24 Jan 2022 17:38:34 +0000 From: Jonathan Cameron To: , Marcel Apfelbaum , "Michael S . Tsirkin" , Igor Mammedov CC: , Ben Widawsky , =?utf-8?q?Alex_Benn=C3=A9e?= , Peter Maydell , , Shameerali Kolothum Thodi , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Saransh Gupta1 , Shreyas Shah , Chris Browy , Samarth Saxena , "Dan Williams" Subject: [PATCH v4 42/42] qtest/cxl: Add very basic sanity tests Date: Mon, 24 Jan 2022 17:17:05 +0000 Message-ID: <20220124171705.10432-43-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220124171705.10432-1-Jonathan.Cameron@huawei.com> References: <20220124171705.10432-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhreml740-chm.china.huawei.com (10.201.108.190) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org From: Ben Widawsky Simple 'does it boot tests' with up to 2x PXB host bridge, each with 2x CXL RP and each of those with a Type 3 memory device. Single CFMWS to interleave across the two HBs and ultimate the 4 devices. More complete tests may be possible but CXL interleave setup is complex so a lot of steps will be needed. Signed-off-by: Ben Widawsky Co-developed-by: Jonathan Cameron Signed-off-by: Jonathan Cameron --- tests/qtest/cxl-test.c | 151 ++++++++++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 4 ++ 2 files changed, 155 insertions(+) diff --git a/tests/qtest/cxl-test.c b/tests/qtest/cxl-test.c new file mode 100644 index 0000000000..bbefbaa870 --- /dev/null +++ b/tests/qtest/cxl-test.c @@ -0,0 +1,151 @@ +/* + * QTest testcase for CXL + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" + +#define QEMU_PXB_CMD "-machine q35,cxl=on " \ + "-device pxb-cxl,id=cxl.0,bus=pcie.0,bus_nr=52,uid=22 " \ + "-cxl-fixed-memory-window targets=cxl.0,size=4G " + +#define QEMU_2PXB_CMD "-machine q35,cxl=on " \ + "-device pxb-cxl,id=cxl.0,bus=pcie.0,bus_nr=52,uid=22 " \ + "-device pxb-cxl,id=cxl.1,bus=pcie.0,bus_nr=53,uid=122 " \ + "-cxl-fixed-memory-window targets=cxl.0,targets=cxl.1,size=4G " + +#define QEMU_RP "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " + +/* Dual ports on first pxb */ +#define QEMU_2RP "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " \ + "-device cxl-rp,id=rp1,bus=cxl.0,chassis=0,slot=1 " + +/* Dual ports on each of the pxb instances */ +#define QEMU_4RP "-device cxl-rp,id=rp0,bus=cxl.0,chassis=0,slot=0 " \ + "-device cxl-rp,id=rp1,bus=cxl.0,chassis=0,slot=1 " \ + "-device cxl-rp,id=rp2,bus=cxl.1,chassis=0,slot=2 " \ + "-device cxl-rp,id=rp3,bus=cxl.1,chassis=0,slot=3 " + +#define QEMU_T3D "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp0,memdev=cxl-mem0,id=cxl-pmem0,size=256M " + +#define QEMU_2T3D "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp0,memdev=cxl-mem0,id=cxl-pmem0,size=256M " \ + "-object memory-backend-file,id=cxl-mem1,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp1,memdev=cxl-mem1,id=cxl-pmem1,size=256M " + +#define QEMU_4T3D "-object memory-backend-file,id=cxl-mem0,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp0,memdev=cxl-mem0,id=cxl-pmem0,size=256M " \ + "-object memory-backend-file,id=cxl-mem1,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp1,memdev=cxl-mem1,id=cxl-pmem1,size=256M " \ + "-object memory-backend-file,id=cxl-mem2,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp2,memdev=cxl-mem2,id=cxl-pmem2,size=256M " \ + "-object memory-backend-file,id=cxl-mem3,mem-path=%s,size=256M " \ + "-device cxl-type3,bus=rp3,memdev=cxl-mem3,id=cxl-pmem3,size=256M " + +static void cxl_basic_hb(void) +{ + qtest_start("-machine q35,cxl=on"); + qtest_end(); +} + +static void cxl_basic_pxb(void) +{ + qtest_start("-machine q35,cxl=on -device pxb-cxl,bus=pcie.0,uid=22"); + qtest_end(); +} + +static void cxl_pxb_with_window(void) +{ + qtest_start(QEMU_PXB_CMD); + qtest_end(); +} + +static void cxl_2pxb_with_window(void) +{ + qtest_start(QEMU_2PXB_CMD); + qtest_end(); +} + +static void cxl_root_port(void) +{ + qtest_start(QEMU_PXB_CMD QEMU_RP); + qtest_end(); +} + +static void cxl_2root_port(void) +{ + qtest_start(QEMU_PXB_CMD QEMU_2RP); + qtest_end(); +} + +static void cxl_t3d(void) +{ + GString *cmdline; + char template[] = "/tmp/cxl-test-XXXXXX"; + const char *tmpfs; + + tmpfs = mkdtemp(template); + + cmdline = g_string_new(NULL); + g_string_printf(cmdline, QEMU_PXB_CMD QEMU_RP QEMU_T3D, tmpfs); + + qtest_start(cmdline->str); + qtest_end(); + + g_string_free(cmdline, TRUE); +} + +static void cxl_1pxb_2rp_2t3d(void) +{ + GString *cmdline; + char template[] = "/tmp/cxl-test-XXXXXX"; + const char *tmpfs; + + tmpfs = mkdtemp(template); + + cmdline = g_string_new(NULL); + g_string_printf(cmdline, QEMU_PXB_CMD QEMU_2RP QEMU_2T3D, tmpfs, tmpfs); + + qtest_start(cmdline->str); + qtest_end(); + + g_string_free(cmdline, TRUE); +} + +static void cxl_2pxb_4rp_4t3d(void) +{ + GString *cmdline; + char template[] = "/tmp/cxl-test-XXXXXX"; + const char *tmpfs; + + tmpfs = mkdtemp(template); + + cmdline = g_string_new(NULL); + g_string_printf(cmdline, QEMU_2PXB_CMD QEMU_4RP QEMU_4T3D, + tmpfs, tmpfs, tmpfs, tmpfs); + + qtest_start(cmdline->str); + qtest_end(); + + g_string_free(cmdline, TRUE); +} + +int main(int argc, char **argv) +{ + g_test_init(&argc, &argv, NULL); + + qtest_add_func("/pci/cxl/basic_hostbridge", cxl_basic_hb); + qtest_add_func("/pci/cxl/basic_pxb", cxl_basic_pxb); + qtest_add_func("/pci/cxl/pxb_with_window", cxl_pxb_with_window); + qtest_add_func("/pci/cxl/pxb_x2_with_window", cxl_2pxb_with_window); + qtest_add_func("/pci/cxl/rp", cxl_root_port); + qtest_add_func("/pci/cxl/rp_x2", cxl_2root_port); + qtest_add_func("/pci/cxl/type3_device", cxl_t3d); + qtest_add_func("/pci/cxl/rp_x2_type3_x2", cxl_1pxb_2rp_2t3d); + qtest_add_func("/pci/cxl/pxb_x2_root_port_x4_type3_x4", cxl_2pxb_4rp_4t3d); + return g_test_run(); +} diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 26937deb6d..a016449657 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -41,6 +41,9 @@ qtests_pci = \ (config_all_devices.has_key('CONFIG_VGA') ? ['display-vga-test'] : []) + \ (config_all_devices.has_key('CONFIG_IVSHMEM_DEVICE') ? ['ivshmem-test'] : []) +qtests_cxl = \ + (config_all_devices.has_key('CONFIG_CXL') ? ['cxl-test'] : []) + qtests_i386 = \ (slirp.found() ? ['pxe-test', 'test-netfilter'] : []) + \ (config_host.has_key('CONFIG_POSIX') ? ['test-filter-mirror'] : []) + \ @@ -74,6 +77,7 @@ qtests_i386 = \ slirp.found() ? ['virtio-net-failover'] : []) + \ (unpack_edk2_blobs ? ['bios-tables-test'] : []) + \ qtests_pci + \ + qtests_cxl + \ ['fdc-test', 'ide-test', 'hd-geo-test',