From patchwork Fri Feb 10 22:27:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Stabellini X-Patchwork-Id: 13136553 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6CAB4C05027 for ; Fri, 10 Feb 2023 22:28:49 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pQbrx-0002IX-8W; Fri, 10 Feb 2023 17:27:49 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pQbru-0002Gv-KR for qemu-devel@nongnu.org; Fri, 10 Feb 2023 17:27:46 -0500 Received: from ams.source.kernel.org ([145.40.68.75]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pQbrs-0007kU-6N for qemu-devel@nongnu.org; Fri, 10 Feb 2023 17:27:46 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C8D55B825FD; Fri, 10 Feb 2023 22:27:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6B1AC4339C; Fri, 10 Feb 2023 22:27:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1676068062; bh=9jAC8F5xA/azSePIdP3et7YP+18kRnpPJUTbURgYLnk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kUR5WB9owdv7nvjYM2KtC6DVrI/gAMFqLt37701J86/iFYGGrCaT610HURUXKPGeF RXe69OpF/MVTRyV9N3qjDsdMkdo6U9SxtWTJcziOAZYc7CTEloMw5ODEcAM5nnss9J QBR2XfRMINpEd6U33y08WBMi+UyOFTgI3OhOTI2moigRbjKmCJP8txt7FEnTEBHxsH MilLs9xVsdwTl87SsG3NBjHeEcTmAfT/F0ALMjgLr1m/IkLQBv8CsqmyE1GY0+EteR 76lH44+cAFC688uoyZMQMO2uozl+b4oKExMUcB6es1mYxicmbX/MbKXftNgzotPh/b cWJ6ynn7KWVhA== From: Stefano Stabellini To: qemu-devel@nongnu.org Cc: sstabellini@kernel.org, peter.maydell@linaro.org, Vikram Garhwal , Stefano Stabellini Subject: [PULL 09/10] hw/arm: introduce xenpvh machine Date: Fri, 10 Feb 2023 14:27:28 -0800 Message-Id: <20230210222729.957168-9-sstabellini@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=145.40.68.75; envelope-from=sstabellini@kernel.org; helo=ams.source.kernel.org X-Spam_score_int: -70 X-Spam_score: -7.1 X-Spam_bar: ------- X-Spam_report: (-7.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Vikram Garhwal Add a new machine xenpvh which creates a IOREQ server to register/connect with Xen Hypervisor. Optional: When CONFIG_TPM is enabled, it also creates a tpm-tis-device, adds a TPM emulator and connects to swtpm running on host machine via chardev socket and support TPM functionalities for a guest domain. Extra command line for aarch64 xenpvh QEMU to connect to swtpm: -chardev socket,id=chrtpm,path=/tmp/myvtpm2/swtpm-sock \ -tpmdev emulator,id=tpm0,chardev=chrtpm \ -machine tpm-base-addr=0x0c000000 \ swtpm implements a TPM software emulator(TPM 1.2 & TPM 2) built on libtpms and provides access to TPM functionality over socket, chardev and CUSE interface. Github repo: https://github.com/stefanberger/swtpm Example for starting swtpm on host machine: mkdir /tmp/vtpm2 swtpm socket --tpmstate dir=/tmp/vtpm2 \ --ctrl type=unixio,path=/tmp/vtpm2/swtpm-sock & Signed-off-by: Vikram Garhwal Signed-off-by: Stefano Stabellini Reviewed-by: Stefano Stabellini --- docs/system/arm/xenpvh.rst | 34 +++++++ docs/system/target-arm.rst | 1 + hw/arm/meson.build | 2 + hw/arm/xen_arm.c | 182 ++++++++++++++++++++++++++++++++++ include/hw/arm/xen_arch_hvm.h | 9 ++ include/hw/xen/arch_hvm.h | 2 + 6 files changed, 230 insertions(+) create mode 100644 docs/system/arm/xenpvh.rst create mode 100644 hw/arm/xen_arm.c create mode 100644 include/hw/arm/xen_arch_hvm.h diff --git a/docs/system/arm/xenpvh.rst b/docs/system/arm/xenpvh.rst new file mode 100644 index 0000000000..e1655c7ab8 --- /dev/null +++ b/docs/system/arm/xenpvh.rst @@ -0,0 +1,34 @@ +XENPVH (``xenpvh``) +========================================= +This machine creates a IOREQ server to register/connect with Xen Hypervisor. + +When TPM is enabled, this machine also creates a tpm-tis-device at a user input +tpm base address, adds a TPM emulator and connects to a swtpm application +running on host machine via chardev socket. This enables xenpvh to support TPM +functionalities for a guest domain. + +More information about TPM use and installing swtpm linux application can be +found at: docs/specs/tpm.rst. + +Example for starting swtpm on host machine: +.. code-block:: console + + mkdir /tmp/vtpm2 + swtpm socket --tpmstate dir=/tmp/vtpm2 \ + --ctrl type=unixio,path=/tmp/vtpm2/swtpm-sock & + +Sample QEMU xenpvh commands for running and connecting with Xen: +.. code-block:: console + + qemu-system-aarch64 -xen-domid 1 \ + -chardev socket,id=libxl-cmd,path=qmp-libxl-1,server=on,wait=off \ + -mon chardev=libxl-cmd,mode=control \ + -chardev socket,id=libxenstat-cmd,path=qmp-libxenstat-1,server=on,wait=off \ + -mon chardev=libxenstat-cmd,mode=control \ + -xen-attach -name guest0 -vnc none -display none -nographic \ + -machine xenpvh -m 1301 \ + -chardev socket,id=chrtpm,path=tmp/vtpm2/swtpm-sock \ + -tpmdev emulator,id=tpm0,chardev=chrtpm -machine tpm-base-addr=0x0C000000 + +In above QEMU command, last two lines are for connecting xenpvh QEMU to swtpm +via chardev socket. diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst index 91ebc26c6d..af8d7c77d6 100644 --- a/docs/system/target-arm.rst +++ b/docs/system/target-arm.rst @@ -106,6 +106,7 @@ undocumented; you can get a complete list by running arm/stm32 arm/virt arm/xlnx-versal-virt + arm/xenpvh Emulated CPU architecture support ================================= diff --git a/hw/arm/meson.build b/hw/arm/meson.build index b545ba0e4f..1b2a01a005 100644 --- a/hw/arm/meson.build +++ b/hw/arm/meson.build @@ -62,6 +62,8 @@ arm_ss.add(when: 'CONFIG_FSL_IMX7', if_true: files('fsl-imx7.c', 'mcimx7d-sabre. arm_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmuv3.c')) arm_ss.add(when: 'CONFIG_FSL_IMX6UL', if_true: files('fsl-imx6ul.c', 'mcimx6ul-evk.c')) arm_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_soc.c')) +arm_ss.add(when: 'CONFIG_XEN', if_true: files('xen_arm.c')) +arm_ss.add_all(xen_ss) softmmu_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmu-common.c')) softmmu_ss.add(when: 'CONFIG_EXYNOS4', if_true: files('exynos4_boards.c')) diff --git a/hw/arm/xen_arm.c b/hw/arm/xen_arm.c new file mode 100644 index 0000000000..eaca65af37 --- /dev/null +++ b/hw/arm/xen_arm.c @@ -0,0 +1,182 @@ +/* + * QEMU ARM Xen PVH Machine + * + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/error-report.h" +#include "qapi/qapi-commands-migration.h" +#include "qapi/visitor.h" +#include "hw/boards.h" +#include "hw/sysbus.h" +#include "sysemu/block-backend.h" +#include "sysemu/tpm_backend.h" +#include "sysemu/sysemu.h" +#include "hw/xen/xen-legacy-backend.h" +#include "hw/xen/xen-hvm-common.h" +#include "sysemu/tpm.h" +#include "hw/xen/arch_hvm.h" + +#define TYPE_XEN_ARM MACHINE_TYPE_NAME("xenpvh") +OBJECT_DECLARE_SIMPLE_TYPE(XenArmState, XEN_ARM) + +static MemoryListener xen_memory_listener = { + .region_add = xen_region_add, + .region_del = xen_region_del, + .log_start = NULL, + .log_stop = NULL, + .log_sync = NULL, + .log_global_start = NULL, + .log_global_stop = NULL, + .priority = 10, +}; + +struct XenArmState { + /*< private >*/ + MachineState parent; + + XenIOState *state; + + struct { + uint64_t tpm_base_addr; + } cfg; +}; + +void arch_handle_ioreq(XenIOState *state, ioreq_t *req) +{ + hw_error("Invalid ioreq type 0x%x\n", req->type); + + return; +} + +void arch_xen_set_memory(XenIOState *state, MemoryRegionSection *section, + bool add) +{ +} + +void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length) +{ +} + +void qmp_xen_set_global_dirty_log(bool enable, Error **errp) +{ +} + +#ifdef CONFIG_TPM +static void xen_enable_tpm(XenArmState *xam) +{ + Error *errp = NULL; + DeviceState *dev; + SysBusDevice *busdev; + + TPMBackend *be = qemu_find_tpm_be("tpm0"); + if (be == NULL) { + DPRINTF("Couldn't fine the backend for tpm0\n"); + return; + } + dev = qdev_new(TYPE_TPM_TIS_SYSBUS); + object_property_set_link(OBJECT(dev), "tpmdev", OBJECT(be), &errp); + object_property_set_str(OBJECT(dev), "tpmdev", be->id, &errp); + busdev = SYS_BUS_DEVICE(dev); + sysbus_realize_and_unref(busdev, &error_fatal); + sysbus_mmio_map(busdev, 0, xam->cfg.tpm_base_addr); + + DPRINTF("Connected tpmdev at address 0x%lx\n", xam->cfg.tpm_base_addr); +} +#endif + +static void xen_arm_init(MachineState *machine) +{ + XenArmState *xam = XEN_ARM(machine); + + xam->state = g_new0(XenIOState, 1); + + xen_register_ioreq(xam->state, machine->smp.cpus, xen_memory_listener); + +#ifdef CONFIG_TPM + if (xam->cfg.tpm_base_addr) { + xen_enable_tpm(xam); + } else { + DPRINTF("tpm-base-addr is not provided. TPM will not be enabled\n"); + } +#endif +} + +#ifdef CONFIG_TPM +static void xen_arm_get_tpm_base_addr(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + XenArmState *xam = XEN_ARM(obj); + uint64_t value = xam->cfg.tpm_base_addr; + + visit_type_uint64(v, name, &value, errp); +} + +static void xen_arm_set_tpm_base_addr(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + XenArmState *xam = XEN_ARM(obj); + uint64_t value; + + if (!visit_type_uint64(v, name, &value, errp)) { + return; + } + + xam->cfg.tpm_base_addr = value; +} +#endif + +static void xen_arm_machine_class_init(ObjectClass *oc, void *data) +{ + + MachineClass *mc = MACHINE_CLASS(oc); + mc->desc = "Xen Para-virtualized PC"; + mc->init = xen_arm_init; + mc->max_cpus = 1; + mc->default_machine_opts = "accel=xen"; + +#ifdef CONFIG_TPM + object_class_property_add(oc, "tpm-base-addr", "uint64_t", + xen_arm_get_tpm_base_addr, + xen_arm_set_tpm_base_addr, + NULL, NULL); + object_class_property_set_description(oc, "tpm-base-addr", + "Set Base address for TPM device."); + + machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); +#endif +} + +static const TypeInfo xen_arm_machine_type = { + .name = TYPE_XEN_ARM, + .parent = TYPE_MACHINE, + .class_init = xen_arm_machine_class_init, + .instance_size = sizeof(XenArmState), +}; + +static void xen_arm_machine_register_types(void) +{ + type_register_static(&xen_arm_machine_type); +} + +type_init(xen_arm_machine_register_types) diff --git a/include/hw/arm/xen_arch_hvm.h b/include/hw/arm/xen_arch_hvm.h new file mode 100644 index 0000000000..8fd645e723 --- /dev/null +++ b/include/hw/arm/xen_arch_hvm.h @@ -0,0 +1,9 @@ +#ifndef HW_XEN_ARCH_ARM_HVM_H +#define HW_XEN_ARCH_ARM_HVM_H + +#include +void arch_handle_ioreq(XenIOState *state, ioreq_t *req); +void arch_xen_set_memory(XenIOState *state, + MemoryRegionSection *section, + bool add); +#endif diff --git a/include/hw/xen/arch_hvm.h b/include/hw/xen/arch_hvm.h index 26674648d8..c7c515220d 100644 --- a/include/hw/xen/arch_hvm.h +++ b/include/hw/xen/arch_hvm.h @@ -1,3 +1,5 @@ #if defined(TARGET_I386) || defined(TARGET_X86_64) #include "hw/i386/xen_arch_hvm.h" +#elif defined(TARGET_ARM) || defined(TARGET_ARM_64) +#include "hw/arm/xen_arch_hvm.h" #endif