https://github.com/Linaro/linux-kernel-uadk/commit/f3a739ec0bbae75f6e96c744705ba65752c7e68f

 

On 2022/11/9 10:01, Zhangfei Gao wrote:
> test this with the two S390 mdev drivers

Hi Zhangfei
I test iommufd with SEC, get the following error.

start qemu：
echo 1 > /sys/bus/pci/devices/0000:76:00.0/sriov_numvfs
echo 0000:76:00.1 > /sys/bus/pci/devices/0000:76:00.1/driver/unbind
echo vfio-pci > /sys/bus/pci/devices/0000:76:00.1/driver_override
echo 0000:76:00.1 > /sys/bus/pci/drivers_probe

./qemu-system-aarch64 -machine virt,gic-version=3,iommu=nested-smmuv3,iommufd=iommufd0 \
-enable-kvm -cpu host -m 4G -smp cpus=8,maxcpus=8 \
-object iommufd,id=iommufd0 \
-kernel /home/kernel/Image \
-initrd /home/mini-rootfs/rootfs.cpio.gz \
-device vfio-pci,host=0000:76:00.1,iommufd=iommufd0 \
-bios QEMU_EFI.fd \
-append "rdinit=init console=ttyAMA0 root=/dev/vda rw kpti=off" \
-net none \
-nographic

the error log：
[root@localhost ~]# [  141.122110] pci 0000:76:00.1: [19e5:a256] type 00 class 0x100000
[  141.128377] pci 0000:76:00.1: enabling Extended Tags
[  141.134001] hisi_sec2 0000:76:00.1: Adding to iommu group 72
[  141.140616] hisi_sec2 0000:76:00.1: enabling device (0000 -> 0002)
[  141.164904] hisi_sec2 0000:76:00.1: SMMU Opened, the iommu type = 3
[  141.171538] hisi_sec2 0000:76:00.1: HW V2 not both use uacce sva mode and hardware crypto algs.
[  141.180765] hisi_sec2 0000:76:00.0: VF enabled, vfs_num(=1)!
[  149.623052] vfio-pci 0000:76:00.1: enabling device (0000 -> 0002)
[  149.734168] vfio_ecap_init, failed to add special caps for VF 0000:76:00.1
[  182.349340] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[  182.358575] Mem abort info:
[  182.361456]   ESR = 0x0000000096000004
[  182.365348]   EC = 0x25: DABT (current EL), IL = 32 bits
[  182.370791]   SET = 0, FnV = 0
[  182.373856]   EA = 0, S1PTW = 0
[  182.377109]   FSC = 0x04: level 0 translation fault
[  182.382173] Data abort info:
[  182.385146]   ISV = 0, ISS = 0x00000004
[  182.389117]   CM = 0, WnR = 0
[  182.392139] user pgtable: 4k pages, 48-bit VAs, pgdp=00002020b5ae9000
[  182.398586] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[  182.405496] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[  182.411770] Modules linked in: ip6table_nat ip6table_mangle iptable_mangle vfio_iommu_type1 vfio_pci vfio_pci_core vfio ip6table_filter ip6_tables p2pdma_provider(O) arm_spe_pmu hns_roce_hw_v2 hibmc_drm drm_vram_helper drm_ttm_helper ttm tst_bbml(O) drm_kms_helper hisi_uncore_hha_pmu hisi_uncore_ddrc_pmu hisi_uncore_l3c_pmu hisi_uncore_pmu spi_dw_mmio fuse hclge crct10dif_ce sbsa_gwdt hns3 hisi_sas_v3_hw hnae3 hisi_zip hisi_sec2 hisi_hpre hisi_sas_main xhci_pci hisi_dma xhci_pci_renesas hisi_qm libsas uacce hinic dm_mirror dm_region_hash dm_log
[  182.461471] CPU: 81 PID: 7961 Comm: qemu-system-aar Kdump: loaded Tainted: G           O       6.2.0-rc4+ #2
[  182.471756] Hardware name: Huawei TaiShan 200 (Model 2280)/BC82AMDD, BIOS 2280-V2 CS V5.B221.01 12/09/2021
[  182.481886] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  182.489084] pc : iommufd_hw_pagetable_destroy+0x30/0x130
[  182.494648] lr : iommufd_object_destroy_user+0xb4/0x114
[  182.500122] sp : ffff800173bebbc0
[  182.503679] x29: ffff800173bebbc0 x28: ffff204006046300 x27: 0000000000000000
[  182.511042] x26: 0000000000000000 x25: 0000000000000000 x24: ffff204006046900
[  182.518400] x23: ffff00400b59e578 x22: ffff2020ad3b7f08 x21: ffff2020ad3b7f00
[  182.525764] x20: ffff004006d78188 x19: ffff004006d78100 x18: 0000000000010000
[  182.533129] x17: 0000000000000001 x16: 0000000000000040 x15: ffffffffffffffff
[  182.540497] x14: 00000000000007ff x13: 000000000000ffff x12: 00000000000001ca
[  182.547865] x11: 000000000001ffff x10: 0000000000000002 x9 : ffffc3f62d434714
[  182.555233] x8 : 0000000000000238 x7 : 0000000000000000 x6 : 0000000000000001
[  182.562601] x5 : ffffc3f62fe33000 x4 : ffffc3f62fe33b78 x3 : 0000000000000000
[  182.569969] x2 : 0000000000000002 x1 : ffff004006d78178 x0 : 0000000000000000
[  182.577340] Call trace:
[  182.580038]  iommufd_hw_pagetable_destroy+0x30/0x130
[  182.585264]  iommufd_object_destroy_user+0xb4/0x114
[  182.590402]  iommufd_device_detach+0x13c/0x1fc
[  182.595106]  vfio_iommufd_physical_unbind+0x48/0x70 [vfio]
[  182.600856]  vfio_iommufd_unbind+0x24/0x3c [vfio]
[  182.605818]  __vfio_device_close+0x78/0xd0 [vfio]
[  182.610771]  vfio_device_fops_release+0x68/0x80 [vfio]
[  182.616154]  __fput+0x78/0x22c
[  182.619452]  ____fput+0x18/0x24
[  182.622825]  task_work_run+0x88/0xc0
[  182.626622]  do_exit+0x31c/0x9bc
[  182.630067]  do_group_exit+0x3c/0xa0
[  182.633848]  __wake_up_parent+0x0/0x40
[  182.637794]  invoke_syscall+0x50/0x120
[  182.641734]  el0_svc_common.constprop.0+0x17c/0x1b0
[  182.646792]  do_el0_svc+0x40/0xc4
[  182.650288]  el0_svc+0x30/0xd0
[  182.653523]  el0t_64_sync_handler+0xb8/0xc0
[  182.657878]  el0t_64_sync+0x1a0/0x1a4
[  182.661710] Code: eb00003f 54000681 f9405e60 91022274 (b9400001)
[  182.667965] ---[ end trace 0000000000000000 ]---
[  182.677034] Fixing recursive fault but reboot is needed!

Message from syslogd@localhost at Feb  2 09:53:07 ...
kernel:[  182.405496] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP

Message from syslogd@localhost at Feb  2 09:53:07 ...
kernel:[  182.661710] Code: eb00003f 54000681 f9405e60 91022274 (b9400001)
_______________________________________________
Acc mailing list -- acc@lists.linaro.org
To unsubscribe send an email to acc-leave@lists.linaro.org