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Tsirkin" , Marcel Apfelbaum , Richard Henderson , Eduardo Habkost , Marcelo Tosatti , qemu-block@nongnu.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org Subject: Re: [PATCH 0/12] Get Xen PV shim running in qemu Date: Tue, 24 Oct 2023 16:24:48 +0100 In-reply-to: <20231016151909.22133-1-dwmw2@infradead.org> Message-ID: <877cnc2fxs.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable David Woodhouse writes: > I hadn't got round to getting the PV shim running yet; I thought it would > need work on the multiboot loader. Turns out it doesn't. I *did* need to > fix a couple of brown-paper-bag bugs in the per-vCPU upcall vector suppor= t, > and implement Xen console support though. Now I can test PV guests: > > $ qemu-system-x86_64 --accel kvm,xen-version=3D0x40011,kernel-irqchip=3D= split \ > -chardev stdio,mux=3Don,id=3Dchar0 -device xen-console,chardev=3Dchar0= \ > -drive file=3D${GUEST_IMAGE},if=3Dxen -display none -m 1G \ > -kernel ~/git/xen/xen/xen -initrd ~/git/linux/arch/x86/boot/bzImage > \ So this is a KVM guest running the Xen hypervisor (via -kernel) and a Dom0 Linux guest (via -initrd)? Should this work for any Xen architecture or is this x86 specific? Does the -M machine model matter? Would it be possible to have some sort of overview document in our manual for how Xen guests are supported under KVM? > -append "loglvl=3Dall -- console=3Dhvc0 root=3D/dev/xvda1" > --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro