[SRU][J/allwinner-5.17][J/starfive-5.17][PATCH v2 0/1] Fix RISC-V KVM with u-boot

[Emil Renner Berthing]

QEMU 7.0 supports KVM on RISC-V.
Package u-boot-qemu supplies /usr/lib/u-boot/qemu-riscv64_smode/uboot.elf.

That binary cannot be used to boot via qemu-system-riscv64 -kvm.

File u-boot produced by qemu-riscv64_smode_defconfig with

CONFIG_MTD_NOR_FLASH=n
CONFIG_CMD_NET=n

can be used to start U-Boot with qemu-system-riscv64 -kvm. But any virtio access leads to a crash leaving QEMU unresponsive.

Cf. https://lists.denx.de/pipermail/u-boot/2022-July/487893.html
---
ProblemType: Bug
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Jul 10 19:58 seq
 crw-rw---- 1 root audio 116, 33 Jul 10 19:58 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.22.0-0ubuntu4
Architecture: riscv64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
CasperMD5CheckResult: unknown
DistroRelease: Ubuntu 22.10
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci-vt:
 -[0000:00]-+-00.0 Red Hat, Inc. QEMU PCIe Host bridge
            +-01.0 Red Hat, Inc. QEMU XHCI Host Controller
            +-02.0 Red Hat, Inc. Virtio block device
            \-03.0 Red Hat, Inc. Virtio block device
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Keyboard
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
     |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 480M
Package: linux-starfive-5.17 (not installed)
PciMultimedia:

ProcCpuinfoMinimal:
 processor : 7
 hart : 7
 isa : rv64imafdcsuh
 mmu : sv48
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.17.0-1003-starfive root=UUID=504657a8-56e8-431b-9c85-65c5737ccf80 ro default_hugepagesz=2M hugepagesz=2M hugepages=2048 earlycon efi=debug
ProcVersionSignature: Ubuntu 5.17.0-1003.4-starfive 5.17.9
RelatedPackageVersions:
 linux-restricted-modules-5.17.0-1003-starfive N/A
 linux-backports-modules-5.17.0-1003-starfive N/A
 linux-firmware 20220621.git7b71b75b-0ubuntu1
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
Tags: kinetic uec-images
Uname: Linux 5.17.0-1003-starfive riscv64
UnreportableReason: This report is about a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: False
acpidump:

Anup Patel (1):
  RISC-V: KVM: Fix SRCU deadlock caused by
    kvm_riscv_check_vcpu_requests()

 arch/riscv/kvm/vcpu.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.36.1