mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 09:56:11 +07:00
2a58222f82
When doing vfio passthrough a VF, the kernel will crash with following message: [ 442.656459] Unable to handle kernel paging request for data at address 0x00000060 [ 442.656593] Faulting instruction address: 0xc000000000038b88 [ 442.656706] Oops: Kernel access of bad area, sig: 11 [#1] [ 442.656798] SMP NR_CPUS=1024 NUMA PowerNV [ 442.656890] Modules linked in: vfio_pci mlx4_core nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack bnep bluetooth rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw tg3 nfsd be2net nfs_acl ses lockd ptp enclosure pps_core kvm_hv kvm_pr shpchp binfmt_misc kvm sunrpc uinput lpfc scsi_transport_fc ipr scsi_tgt [last unloaded: mlx4_core] [ 442.658152] CPU: 40 PID: 14948 Comm: qemu-system-ppc Not tainted 3.10.42yw-pkvm+ #37 [ 442.658219] task: c000000f7e2a9a00 ti: c000000f6dc3c000 task.ti: c000000f6dc3c000 [ 442.658287] NIP: c000000000038b88 LR: c0000000004435a8 CTR: c000000000455bc0 [ 442.658352] REGS: c000000f6dc3f580 TRAP: 0300 Not tainted (3.10.42yw-pkvm+) [ 442.658419] MSR: 9000000000009032 <SF,HV,EE,ME,IR,DR,RI> CR: 28004882 XER: 20000000 [ 442.658577] CFAR: c00000000000908c DAR: 0000000000000060 DSISR: 40000000 SOFTE: 1 GPR00: c0000000004435a8 c000000f6dc3f800 c0000000012b1c10 c00000000da24000 GPR04: 0000000000000003 0000000000001004 00000000000015b3 000000000000ffff GPR08: c00000000127f5d8 0000000000000000 000000000000ffff 0000000000000000 GPR12: c000000000068078 c00000000fdd6800 000001003c320c80 000001003c3607f0 GPR16: 0000000000000001 00000000105480c8 000000001055aaa8 000001003c31ab18 GPR20: 000001003c10fb40 000001003c360ae8 000000001063bcf0 000000001063bdb0 GPR24: 000001003c15ed70 0000000010548f40 c000001fe5514c88 c000001fe5514cb0 GPR28: c00000000da24000 0000000000000000 c00000000da24000 0000000000000003 [ 442.659471] NIP [c000000000038b88] .pcibios_set_pcie_reset_state+0x28/0x130 [ 442.659530] LR [c0000000004435a8] .pci_set_pcie_reset_state+0x28/0x40 [ 442.659585] Call Trace: [ 442.659610] [c000000f6dc3f800] [00000000000719e0] 0x719e0 (unreliable) [ 442.659677] [c000000f6dc3f880] [c0000000004435a8] .pci_set_pcie_reset_state+0x28/0x40 [ 442.659757] [c000000f6dc3f900] [c000000000455bf8] .reset_fundamental+0x38/0x80 [ 442.659835] [c000000f6dc3f980] [c0000000004562a8] .pci_dev_specific_reset+0xa8/0xf0 [ 442.659913] [c000000f6dc3fa00] [c0000000004448c4] .__pci_dev_reset+0x44/0x430 [ 442.659980] [c000000f6dc3fab0] [c000000000444d5c] .pci_reset_function+0x7c/0xc0 [ 442.660059] [c000000f6dc3fb30] [d00000001c141ab8] .vfio_pci_open+0xe8/0x2b0 [vfio_pci] [ 442.660139] [c000000f6dc3fbd0] [c000000000586c30] .vfio_group_fops_unl_ioctl+0x3a0/0x630 [ 442.660219] [c000000f6dc3fc90] [c000000000255fbc] .do_vfs_ioctl+0x4ec/0x7c0 [ 442.660286] [c000000f6dc3fd80] [c000000000256364] .SyS_ioctl+0xd4/0xf0 [ 442.660354] [c000000f6dc3fe30] [c000000000009e54] syscall_exit+0x0/0x98 [ 442.660420] Instruction dump: [ 442.660454] 4bfffce9 4bfffee4 7c0802a6 fbc1fff0 fbe1fff8 f8010010 f821ff81 7c7e1b78 [ 442.660566] 7c9f2378 60000000 60000000 e93e02c8 <e8690060> 2fa30000 41de00c4 2b9f0002 [ 442.660679] ---[ end trace a64ac9546bcf0328 ]--- [ 442.660724] The reason is current VF is not EEH enabled. This patch introduces a macro to convert eeh_dev to eeh_pe. By doing so, it will prevent converting with NULL pointer. Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com> Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com> CC: Michael Ellerman <mpe@ellerman.id.au> V3 -> V4: 1. move the macro definition from include/linux/pci.h to arch/powerpc/include/asm/eeh.h V2 -> V3: 1. rebased on 3.17-rc4 2. introduce a macro 3. use this macro in several other places V1 -> V2: 1. code style and patch subject adjustment Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
||
|---|---|---|
| .. | ||
| 8xx_immap.h | ||
| agp.h | ||
| archrandom.h | ||
| asm-compat.h | ||
| asm-offsets.h | ||
| async_tx.h | ||
| atomic.h | ||
| backlight.h | ||
| barrier.h | ||
| bitops.h | ||
| bootx.h | ||
| btext.h | ||
| bug.h | ||
| bugs.h | ||
| cache.h | ||
| cacheflush.h | ||
| cell-pmu.h | ||
| cell-regs.h | ||
| checksum.h | ||
| cmpxchg.h | ||
| code-patching.h | ||
| compat.h | ||
| context_tracking.h | ||
| cpm1.h | ||
| cpm2.h | ||
| cpm.h | ||
| cputable.h | ||
| cputhreads.h | ||
| cputime.h | ||
| current.h | ||
| dbdma.h | ||
| dbell.h | ||
| dcr-generic.h | ||
| dcr-mmio.h | ||
| dcr-native.h | ||
| dcr-regs.h | ||
| dcr.h | ||
| debug.h | ||
| delay.h | ||
| device.h | ||
| disassemble.h | ||
| div64.h | ||
| dma-mapping.h | ||
| dma.h | ||
| edac.h | ||
| eeh_event.h | ||
| eeh.h | ||
| ehv_pic.h | ||
| elf.h | ||
| emergency-restart.h | ||
| emulated_ops.h | ||
| epapr_hcalls.h | ||
| exception-64e.h | ||
| exception-64s.h | ||
| exec.h | ||
| fadump.h | ||
| fb.h | ||
| feature-fixups.h | ||
| firmware.h | ||
| fixmap.h | ||
| floppy.h | ||
| fs_pd.h | ||
| fsl_85xx_cache_sram.h | ||
| fsl_gtm.h | ||
| fsl_guts.h | ||
| fsl_hcalls.h | ||
| fsl_lbc.h | ||
| fsl_pamu_stash.h | ||
| ftrace.h | ||
| futex.h | ||
| gpio.h | ||
| grackle.h | ||
| hardirq.h | ||
| heathrow.h | ||
| highmem.h | ||
| hugetlb.h | ||
| hvcall.h | ||
| hvconsole.h | ||
| hvcserver.h | ||
| hvsi.h | ||
| hw_breakpoint.h | ||
| hw_irq.h | ||
| hydra.h | ||
| i8259.h | ||
| ibmebus.h | ||
| ide.h | ||
| immap_cpm2.h | ||
| immap_qe.h | ||
| io_event_irq.h | ||
| io-defs.h | ||
| io-workarounds.h | ||
| io.h | ||
| iommu.h | ||
| ipic.h | ||
| irq_regs.h | ||
| irq.h | ||
| irqflags.h | ||
| jump_label.h | ||
| Kbuild | ||
| kdebug.h | ||
| kdump.h | ||
| kexec.h | ||
| keylargo.h | ||
| kgdb.h | ||
| kmap_types.h | ||
| kprobes.h | ||
| kvm_asm.h | ||
| kvm_book3s_32.h | ||
| kvm_book3s_64.h | ||
| kvm_book3s_asm.h | ||
| kvm_book3s.h | ||
| kvm_booke_hv_asm.h | ||
| kvm_booke.h | ||
| kvm_fpu.h | ||
| kvm_host.h | ||
| kvm_para.h | ||
| kvm_ppc.h | ||
| libata-portmap.h | ||
| linkage.h | ||
| local64.h | ||
| local.h | ||
| lppaca.h | ||
| lv1call.h | ||
| machdep.h | ||
| macio.h | ||
| mc146818rtc.h | ||
| mce.h | ||
| mediabay.h | ||
| mman.h | ||
| mmu_context.h | ||
| mmu-8xx.h | ||
| mmu-40x.h | ||
| mmu-44x.h | ||
| mmu-book3e.h | ||
| mmu-hash32.h | ||
| mmu-hash64.h | ||
| mmu.h | ||
| mmzone.h | ||
| module.h | ||
| mpc5xxx.h | ||
| mpc6xx.h | ||
| mpc52xx_psc.h | ||
| mpc52xx.h | ||
| mpc85xx.h | ||
| mpc5121.h | ||
| mpc8260.h | ||
| mpic_msgr.h | ||
| mpic_timer.h | ||
| mpic.h | ||
| msi_bitmap.h | ||
| mutex.h | ||
| nvram.h | ||
| ohare.h | ||
| opal.h | ||
| oprofile_impl.h | ||
| paca.h | ||
| page_32.h | ||
| page_64.h | ||
| page.h | ||
| parport.h | ||
| pasemi_dma.h | ||
| pci-bridge.h | ||
| pci.h | ||
| percpu.h | ||
| perf_event_fsl_emb.h | ||
| perf_event_server.h | ||
| perf_event.h | ||
| pgalloc-32.h | ||
| pgalloc-64.h | ||
| pgalloc.h | ||
| pgtable-ppc32.h | ||
| pgtable-ppc64-4k.h | ||
| pgtable-ppc64-64k.h | ||
| pgtable-ppc64.h | ||
| pgtable.h | ||
| plpar_wrappers.h | ||
| pmac_feature.h | ||
| pmac_low_i2c.h | ||
| pmac_pfunc.h | ||
| pmc.h | ||
| pmi.h | ||
| ppc4xx_ocm.h | ||
| ppc4xx.h | ||
| ppc_asm.h | ||
| ppc-opcode.h | ||
| ppc-pci.h | ||
| probes.h | ||
| processor.h | ||
| prom.h | ||
| ps3.h | ||
| ps3av.h | ||
| ps3gpu.h | ||
| ps3stor.h | ||
| pte-8xx.h | ||
| pte-40x.h | ||
| pte-44x.h | ||
| pte-book3e.h | ||
| pte-common.h | ||
| pte-fsl-booke.h | ||
| pte-hash32.h | ||
| pte-hash64-4k.h | ||
| pte-hash64-64k.h | ||
| pte-hash64.h | ||
| ptrace.h | ||
| qe_ic.h | ||
| qe.h | ||
| reg_8xx.h | ||
| reg_a2.h | ||
| reg_booke.h | ||
| reg_fsl_emb.h | ||
| reg.h | ||
| rheap.h | ||
| rio.h | ||
| rtas.h | ||
| rtc.h | ||
| runlatch.h | ||
| scom.h | ||
| sections.h | ||
| serial.h | ||
| setjmp.h | ||
| setup.h | ||
| sfp-machine.h | ||
| shmparam.h | ||
| signal.h | ||
| smp.h | ||
| smu.h | ||
| sparsemem.h | ||
| spinlock_types.h | ||
| spinlock.h | ||
| spu_csa.h | ||
| spu_info.h | ||
| spu_priv1.h | ||
| spu.h | ||
| sstep.h | ||
| string.h | ||
| swab.h | ||
| swiotlb.h | ||
| switch_to.h | ||
| synch.h | ||
| syscall.h | ||
| syscalls.h | ||
| systbl.h | ||
| tce.h | ||
| termios.h | ||
| thread_info.h | ||
| time.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| tm.h | ||
| topology.h | ||
| trace.h | ||
| tsi108_irq.h | ||
| tsi108_pci.h | ||
| tsi108.h | ||
| types.h | ||
| uaccess.h | ||
| ucc_fast.h | ||
| ucc_slow.h | ||
| ucc.h | ||
| udbg.h | ||
| uic.h | ||
| unaligned.h | ||
| uninorth.h | ||
| unistd.h | ||
| uprobes.h | ||
| user.h | ||
| vdso_datapage.h | ||
| vdso.h | ||
| vga.h | ||
| vio.h | ||
| word-at-a-time.h | ||
| xics.h | ||
| xilinx_intc.h | ||
| xilinx_pci.h | ||
| xmon.h | ||
| xor.h | ||