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Diffstat (limited to 'results/classifier/zero-shot/105/other/2956')
| -rw-r--r-- | results/classifier/zero-shot/105/other/2956 | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/105/other/2956 b/results/classifier/zero-shot/105/other/2956 new file mode 100644 index 000000000..b7df2df8a --- /dev/null +++ b/results/classifier/zero-shot/105/other/2956 @@ -0,0 +1,227 @@ +other: 0.851 +KVM: 0.838 +boot: 0.804 +device: 0.803 +vnc: 0.787 +instruction: 0.781 +semantic: 0.779 +assembly: 0.776 +socket: 0.766 +graphic: 0.760 +network: 0.750 +mistranslation: 0.730 + +AMD SEV-SNP: vhost-user-fs-pci iommu_platform=true is not supported by the device +Description of problem: +Trying to make use of `vhost-user-fs-pci` with `sev-snp-guest` enabled doesn't work. +The system reports that `vhost-user-fs-pci` doesn't support IOMMU but as far as I understand +we need IOMMU for the virtio protocol to fully function. +Steps to reproduce: +1. Ensure you are running on a system with AMD SNP support: +``` +sudo dmesg | grep -i sev +[ 0.000000] SEV-SNP: RMP table physical range [0x000000bfbd000000 - 0x000000c07d8fffff] +[ 0.003807] SEV-SNP: Reserving start/end of RMP table on a 2MB boundary [0x000000c07d800000] +[ 8.085220] ccp 0000:06:00.5: sev enabled +[ 16.226155] ccp 0000:06:00.5: SEV API:1.55 build:28 +[ 16.226162] ccp 0000:06:00.5: SEV-SNP API:1.55 build:28 +[ 16.239284] kvm_amd: SEV enabled (ASIDs 15 - 1006) +[ 16.239289] kvm_amd: SEV-ES enabled (ASIDs 1 - 14) +[ 16.239292] kvm_amd: SEV-SNP enabled (ASIDs 1 - 14) +``` +2. Use an OVMF which supports AMD SNP: https://github.com/tianocore/edk2.git branch: edk2-stable202502 +3. Launch the virtiofs daemon process. +4. Launch qemu with device `vhost-user-fs-pci` +5. The qemu process will terminate with the following error message: + +``` +qemu-system-x86_64: -device vhost-user-fs-pci,chardev=fs0,tag=cfg: iommu_platform=true is not supported by the device +``` +Additional information: +It does launch if I disable any AMD SEV-SNP functionality from the VM: + +``` +sudo ./qemu-system-x86_64 \ + -nodefaults \ + -enable-kvm \ + -cpu host \ + -object memory-backend-memfd,id=mem0,size=2048M,share=on \ + -machine q35,memory-backend=mem0 \ + -smp cpus=1 \ + -drive file=ubuntu.qcow2,if=none,id=disk0,format=qcow2 \ + -device virtio-blk-pci,drive=disk0 \ + -device amd-iommu \ + -chardev socket,id=fs0,path=/var/run/virtiofs/cfg.sock \ + -device vhost-user-fs-pci,chardev=fs0,tag=cfg \ + -bios ./ovmf-dist/x86_64/OVMF.fd \ + -kernel ./linux-guest-6.12.15-1-/boot/vmlinuz-6.12.15-1 \ + -initrd ./initrd/initrd.img \ + -append 'console=ttyS0' \ + -display none + -nographic + -chardev stdio,id=stdio0,signal=off \ + -serial chardev:stdio0 \ + -D /tmp/qemu-vmm.log \ + -d 'guest_errors,unimp,trace:virtio*' +``` + +BTW: I've also managed to reproduce the same bug on AMD's fork: +- Repo: https://github.com/AMDESE/qemu.git +- Branch: snp-latest + +Configure flags: +``` + --target-list=x86_64-softmmu \ + --prefix=/builder/out/qemu-dist \ + --sysconfdir=/builder/out/qemu-dist/etc \ + --libdir=/builder/out/qemu-dist/lib \ + --libexecdir=/builder/out/qemu-dist/lib/qemu \ + --localstatedir=/builder/out/qemu-dist/var \ + --ninja=/usr/bin/ninja \ + --python=/usr/bin/python3 \ + --with-pkgversion=qemu \ + --cc=/usr/bin/x86_64-linux-gnu-gcc-13 \ + --static \ + --disable-cocoa \ + --disable-curses \ + --disable-dbus-display \ + --disable-gtk \ + --disable-gtk-clipboard \ + --disable-opengl \ + --disable-png \ + --disable-sdl \ + --disable-sdl-image \ + --disable-spice \ + --disable-spice-protocol \ + --disable-virglrenderer \ + --disable-vnc \ + --disable-vnc-jpeg \ + --disable-vnc-sasl \ + --disable-vte \ + --disable-alsa \ + --disable-coreaudio \ + --disable-dsound \ + --disable-jack \ + --disable-oss \ + --disable-pa \ + --disable-pipewire \ + --disable-sndio \ + --disable-vvfat \ + --disable-vdi \ + --disable-qed \ + --disable-qcow1 \ + --disable-bochs \ + --disable-cloop \ + --disable-dmg \ + --disable-parallels \ + --disable-vpc \ + --disable-vmdk \ + --disable-vhdx \ + --disable-bzip2 \ + --disable-lzfse \ + --disable-snappy \ + --disable-lzo \ + --disable-netmap \ + --disable-l2tpv3 \ + --disable-slirp-smbd \ + --disable-vde \ + --disable-vmnet \ + --disable-vhost-user-blk-server \ + --disable-vfio-user-server \ + --disable-curl \ + --disable-glusterfs \ + --disable-libiscsi \ + --disable-libnfs \ + --disable-libssh \ + --disable-mpath \ + --disable-rbd \ + --disable-vduse-blk-export \ + --disable-virtfs \ + --disable-fuse \ + --disable-fuse-lseek \ + --disable-blkio \ + --disable-nettle \ + --disable-gcrypt \ + --disable-gnutls \ + --disable-crypto-afalg \ + --disable-libkeyutils \ + --disable-libkeyutils \ + --disable-auth-pam \ + --disable-keyring \ + --disable-selinux \ + --disable-u2f \ + --disable-brlapi \ + --disable-canokey \ + --disable-hvf \ + --disable-hv-balloon \ + --disable-libdaxctl \ + --disable-libudev \ + --disable-libusb \ + --disable-nvmm \ + --disable-rdma \ + --disable-smartcard \ + --disable-usb-redir \ + --disable-whpx \ + --disable-xen \ + --disable-xen-pci-passthrough \ + --disable-guest-agent \ + --disable-guest-agent-msi \ + --disable-colo-proxy \ + --disable-rutabaga-gfx \ + --disable-vhost-crypto \ + --disable-capstone \ + --disable-docs \ + --disable-gettext \ + --disable-iconv \ + --disable-libdw \ + --disable-pixman \ + --disable-sparse \ + --disable-xkbcommon \ + --disable-attr \ + --disable-gio \ + --disable-multiprocess \ + --disable-plugins \ + --disable-qpl \ + --disable-replication \ + --disable-uadk \ + --disable-libvduse \ + --disable-libpmem \ + --disable-user \ + --disable-bsd-user \ + --disable-linux-user \ + --disable-tcg \ + --disable-debug-tcg \ + --disable-tcg-interpreter \ + --disable-hexagon-idef-parser \ + --disable-qom-cast-debug \ + --enable-kvm \ + --enable-system \ + --enable-pie \ + --enable-lto \ + --enable-af-xdp \ + --enable-slirp \ + --enable-vhost-kernel \ + --enable-vhost-net \ + --enable-vhost-user \ + --enable-vhost-vdpa \ + --enable-bpf \ + --enable-coroutine-pool \ + --enable-linux-aio \ + --enable-linux-io-uring \ + --enable-malloc-trim \ + --enable-membarrier \ + --enable-cap-ng \ + --enable-seccomp \ + --enable-stack-protector \ + --enable-tpm \ + --enable-zstd \ + --enable-numa \ + --enable-fdt=disabled \ + --enable-install-blobs \ + --enable-tools \ + --enable-trace-backends=log \ + --enable-strip \ + --x86-version=4 \ + --extra-cflags=-O2 -fno-semantic-interposition -fdevirtualize-at-ltrans -flto=auto -fuse-linker-plugin -falign-functions=32 -D_FORTIFY_SOURCE=2 -Wno-deprecated-declarations -Wno-error=stringop-overflow -Wformat -Werror=format-security -Werror=implicit-function-declaration -fstack-protector-strong -fstack-clash-protection -fcf-protection -fipa-pta \ + --extra-ldflags=-Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,-O1 -Wl,--as-needed +``` |