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Fri, 2 Dec 2022 14:58:00 +0000 (GMT) References: <20221202030003.11441-1-vikram.garhwal@amd.com> <20221202030003.11441-11-vikram.garhwal@amd.com> User-agent: mu4e 1.9.3; emacs 29.0.60 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: Vikram Garhwal Cc: qemu-dev@xilinx.com, stefano.stabellini@amd.com, xen-devel@lists.xenproject.org, Peter Maydell , Stefano Stabellini , Anthony Perard , Paul Durrant , "open list:ARM TCG CPUs" , "open list:All patches CC here" Subject: Re: [QEMU][PATCH v2 10/11] hw/arm: introduce xenpv machine Date: Fri, 02 Dec 2022 14:52:41 +0000 In-reply-to: <20221202030003.11441-11-vikram.garhwal@amd.com> Message-ID: <871qphc0p3.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x336.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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 Vikram Garhwal writes: > Add a new machine xenpv which creates a IOREQ server to register/connect = with > Xen Hypervisor. > > Optional: When CONFIG_TPM is enabled, it also creates a tpm-tis-device, a= dds a > TPM emulator and connects to swtpm running on host machine via chardev so= cket > and support TPM functionalities for a guest domain. > > Extra command line for aarch64 xenpv QEMU to connect to swtpm: > -chardev socket,id=3Dchrtpm,path=3D/tmp/myvtpm2/swtpm-sock \ > -tpmdev emulator,id=3Dtpm0,chardev=3Dchrtpm \ > > swtpm implements a TPM software emulator(TPM 1.2 & TPM 2) built on libtpm= s and > provides access to TPM functionality over socket, chardev and CUSE interf= ace. > Github repo: https://github.com/stefanberger/swtpm > Example for starting swtpm on host machine: > mkdir /tmp/vtpm2 > swtpm socket --tpmstate dir=3D/tmp/vtpm2 \ > --ctrl type=3Dunixio,path=3D/tmp/vtpm2/swtpm-sock & > + > +static void xen_enable_tpm(void) > +{ > +/* qemu_find_tpm_be is only available when CONFIG_TPM is enabled. */ > +#ifdef CONFIG_TPM > + Error *errp =3D NULL; > + DeviceState *dev; > + SysBusDevice *busdev; > + > + TPMBackend *be =3D qemu_find_tpm_be("tpm0"); > + if (be =3D=3D NULL) { > + DPRINTF("Couldn't fine the backend for tpm0\n"); > + return; > + } > + dev =3D 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 =3D SYS_BUS_DEVICE(dev); > + sysbus_realize_and_unref(busdev, &error_fatal); > + sysbus_mmio_map(busdev, 0, GUEST_TPM_BASE); Still fails on my aarch64 Debian machine: FAILED: libqemu-aarch64-softmmu.fa.p/hw_arm_xen_arm.c.o=20 cc -Ilibqemu-aarch64-softmmu.fa.p -I. -I../.. -Itarget/arm -I../../target= /arm -Iqapi -Itrace -Iui -Iui/shader -I/usr/include/pixman-1 -I/usr/local/i= nclude -I/usr/include/capstone -I/usr/include/spice-server -I/usr/include/s= pice-1 -I/usr/include/glib-2.0 -I/usr/lib/aarch64-linux-gnu/glib-2.0/includ= e -fdiagnostics-color=3Dauto -Wall -Winvalid-pch -Werror -std=3Dgnu11 -O2 -= g -isystem /home/alex/lsrc/qemu.git/linux-headers -isystem linux-headers -i= quote . -iquote /home/alex/lsrc/qemu.git -iquote /home/alex/lsrc/qemu.git/i= nclude -iquote /home/alex/lsrc/qemu.git/tcg/aarch64 -pthread -U_FORTIFY_SOU= RCE -D_FORTIFY_SOURCE=3D2 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=3D64 -D_LARGEFI= LE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wm= issing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wold-style-decl= aration -Wold-style-definition -Wtype-limits -Wformat-security -Wformat-y2k= -Winit-self -Wignored-qualifiers -Wempty-body -Wnested-externs -Wendif-lab= els -Wexpansion-to-defined -Wimplicit-fallthrough=3D2 -Wno-missing-include-= dirs -Wno-shift-negative-value -Wno-psabi -fstack-protector-strong -fPIE -i= system../../linux-headers -isystemlinux-headers -DNEED_CPU_H '-DCONFIG_TARG= ET=3D"aarch64-softmmu-config-target.h"' '-DCONFIG_DEVICES=3D"aarch64-softmm= u-config-devices.h"' -MD -MQ libqemu-aarch64-softmmu.fa.p/hw_arm_xen_arm.c.= o -MF libqemu-aarch64-softmmu.fa.p/hw_arm_xen_arm.c.o.d -o libqemu-aarch64-= softmmu.fa.p/hw_arm_xen_arm.c.o -c ../../hw/arm/xen_arm.c ../../hw/arm/xen_arm.c: In function =E2=80=98xen_enable_tpm=E2=80=99: ../../hw/arm/xen_arm.c:126:32: error: =E2=80=98GUEST_TPM_BASE=E2=80=99 un= declared (first use in this function); did you mean =E2=80=98GUEST_RAM_BASE= =E2=80=99? 126 | sysbus_mmio_map(busdev, 0, GUEST_TPM_BASE); | ^~~~~~~~~~~~~~ | GUEST_RAM_BASE ../../hw/arm/xen_arm.c:126:32: note: each undeclared identifier is report= ed only once for each function it appears in [2082/3246] Compiling C object libqemu-aarch64-softmmu.fa.p/hw_xen_xen-ma= pcache.c.o [2083/3246] Compiling C object libqemu-aarch64-softmmu.fa.p/hw_xen_xen-hv= m-common.c.o ninja: build stopped: subcommand failed. make: *** [Makefile:165: run-ninja] Error 1 > + > + DPRINTF("Connected tpmdev at address 0x%lx\n", GUEST_TPM_BASE); > +#endif > +} If there is a minimum required version for TPM then it needs to be picked up by configure. --=20 Alex Benn=C3=A9e