On 17/08/20 19:22, Sean Christopherson wrote: >> This splats when running the PKU unit test, although the test still passed. >> I haven't yet spent the brain power to determine if this is a benign warning, >> i.e. simply unexpected, or if permission_fault() fault truly can't handle PK >> faults. It's more or less unexpected; the error is in the caller. This is not an error code but an access mask so only U/F/W bits are valid. Patch sent, thanks. Paolo >> WARNING: CPU: 25 PID: 5465 at arch/x86/kvm/mmu.h:197 paging64_walk_addr_generic+0x594/0x750 [kvm] >> Hardware name: Intel Corporation WilsonCity/WilsonCity, BIOS WLYDCRB1.SYS.0014.D62.2001092233 01/09/2020 >> RIP: 0010:paging64_walk_addr_generic+0x594/0x750 [kvm] >> Code: <0f> 0b e9 db fe ff ff 44 8b 43 04 4c 89 6c 24 30 8b 13 41 39 d0 89 >> RSP: 0018:ff53778fc623fb60 EFLAGS: 00010202 >> RAX: 0000000000000001 RBX: ff53778fc623fbf0 RCX: 0000000000000007 >> RDX: 0000000000000001 RSI: 0000000000000002 RDI: ff4501efba818000 >> RBP: 0000000000000020 R08: 0000000000000005 R09: 00000000004000e7 >> R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007 >> R13: ff4501efba818388 R14: 10000000004000e7 R15: 0000000000000000 >> FS: 00007f2dcf31a700(0000) GS:ff4501f1c8040000(0000) knlGS:0000000000000000 >> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> CR2: 0000000000000000 CR3: 0000001dea475005 CR4: 0000000000763ee0 >> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 >> PKRU: 55555554 >> Call Trace: >> paging64_gva_to_gpa+0x3f/0xb0 [kvm] >> kvm_fixup_and_inject_pf_error+0x48/0xa0 [kvm] >> handle_exception_nmi+0x4fc/0x5b0 [kvm_intel] >> kvm_arch_vcpu_ioctl_run+0x911/0x1c10 [kvm] >> kvm_vcpu_ioctl+0x23e/0x5d0 [kvm] >> ksys_ioctl+0x92/0xb0 >> __x64_sys_ioctl+0x16/0x20 >> do_syscall_64+0x3e/0xb0 >> entry_SYSCALL_64_after_hwframe+0x44/0xa9 >> ---[ end trace d17eb998aee991da ]--- > > Looks like this series got pulled for 5.9, has anyone looked into this? >
