Re: [RFC PATCH v2 03/22] i386/xen: Add xen-version machine property and init KVM Xen support

[David Woodhouse]

On Mon, 2022-12-12 at 18:30 +0100, Paolo Bonzini wrote:
> On 12/9/22 10:55, David Woodhouse wrote:
> > -    m->default_machine_opts = "accel=xen,suppress-vmdesc=on";
> > +    if (xen_enabled())
> > +            m->default_machine_opts = "accel=xen,suppress-vmdesc=on";
> > +    else
> > +            m->default_machine_opts = "accel=kvm,xen-version=0x30001";
> 
> Please do not modify pc_xen_hvm_init().
> 
> "-M xenfv" should be the same as "-M pc-i440fx-...,suppress-vmdesc=on 
> -accel xen -device xen-platform".  It must work *without* "-accel xen", 
> while here you're basically requiring it.  For now, please make 
> KVM-emulated Xen use "-M pc -device xen-platform".  We can figure out 
> "-M xenfv" later.
> 
> You can instead have:
> 
> - a check in xen_init() that checks that xen_mode is XEN_ATTACH.  If 
> not, fail.
> 
> - an extra enum value for xen_mode, XEN_DISABLED, which is the default 
> instead of XEN_EMULATE;
> 
> - an accelerator property "-accel kvm,xen-version=...", added in 
> kvm_accel_class_init() instead of the machine property.  The property, 
> when set to a nonzero value, flips xen_mode from XEN_DISABLED to 
> XEN_EMULATE.
> 
> The Xen overlay device can be created using the mc->kvm_type function 
> (which you can set in DEFINE_PC_MACHINE); at that point, xen_mode has 
> switched from XEN_DISABLED to XEN_EMULATE.  Those xen_enabled() checks 
> that apply to KVM then become xen_mode != XEN_DISABLED, as long as they 
> run during mc->kvm_type or afterwards.
> 
> The platform device can be created either in mc->kvm_type or manually 
> (not sure if it makes sense to have a "XenVMMXenVMM" CPUID + emulated 
> hypercalls but no platform device---would it still use pvclock for 
> example?).

That works; thanks. I won't spam the list with another round just yet,
but have pushed it to
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv

The guest now correctly panics because I haven't implemented event
channel hypercalls yet (got to fix up a bit more of the 32-bit compat
first, and some other parts of Paul's feedback I haven't yet got to).

$ ./build/qemu-system-x86_64 -serial mon:stdio -M pc -accel 
kvm,xen-version=0x4000a  -cpu host  -display none -kernel 
vmlinuz-5.17.8-200.fc35.x86_64 -append "console=ttyS0 earlyprintk=ttyS0 
panic=10000" --trace "kvm_xen*" -d unimp -m 1G -smp 4 -device xen-platform
Probing EDD (edd=off to disable)... ok
[    0.000000] Linux version 5.17.8-200.fc35.x86_64 
(mockbuild@bkernel02.iad2.fedoraproject.org) (gcc (GCC) 11.3.1 20220421 (Red 
Hat 11.3.1-2), GNU ld version 2.37-17.fc35) #1 SMP PREEMPT Mon May 16 01:01:02 
UTC 2022
[    0.000000] Command line: console=ttyS0 earlyprintk=ttyS0 panic=10000
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point 
registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
[    0.000000] x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
[    0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 
bytes, using 'compacted' format.
[    0.000000] signal: max sigframe size: 2032
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003ffdffff] usable
[    0.000000] BIOS-e820: [mem 0x000000003ffe0000-0x000000003fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] printk: bootconsole [earlyser0] enabled
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] extended physical RAM map:
[    0.000000] reserve setup_data: [mem 0x0000000000000000-0x000000000009fbff] 
usable
[    0.000000] reserve setup_data: [mem 0x000000000009fc00-0x000000000009ffff] 
reserved
[    0.000000] reserve setup_data: [mem 0x00000000000f0000-0x00000000000fffff] 
reserved
[    0.000000] reserve setup_data: [mem 0x0000000000100000-0x0000000000bf98ef] 
usable
[    0.000000] reserve setup_data: [mem 0x0000000000bf98f0-0x0000000000bf991f] 
usable
[    0.000000] reserve setup_data: [mem 0x0000000000bf9920-0x000000003ffdffff] 
usable
[    0.000000] reserve setup_data: [mem 0x000000003ffe0000-0x000000003fffffff] 
reserved
[    0.000000] reserve setup_data: [mem 0x00000000feffc000-0x00000000feffffff] 
reserved
[    0.000000] reserve setup_data: [mem 0x00000000fffc0000-0x00000000ffffffff] 
reserved
[    0.000000] SMBIOS 2.8 present.
[    0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014
[    0.000000] Hypervisor detected: Xen HVM
[    0.000000] Xen version 4.10.
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 17 a0 0x6 a1 
0xffffffffb8e03e70 a2 0x0 ret 0x0
kvm_xen_set_shared_info shared info at gfn 0x10
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 12 a0 0x7 a1 
0xffffffffb8e03e60 a2 0x8000000000000163 ret 0x0
kvm_xen_set_vcpu_attr vcpu attr cpu 1 type 0 gpa 0x10040
kvm_xen_set_vcpu_attr vcpu attr cpu 2 type 0 gpa 0x10080
kvm_xen_set_vcpu_attr vcpu attr cpu 0 type 0 gpa 0x10000
kvm_xen_set_vcpu_attr vcpu attr cpu 3 type 0 gpa 0x100c0
[    0.000000] platform_pci_unplug: Netfront and the Xen platform PCI driver 
have been compiled for this kernel: unplug emulated NICs.
[    0.000000] platform_pci_unplug: Blkfront and the Xen platform PCI driver 
have been compiled for this kernel: unplug emulated disks.
[    0.000000] You might have to change the root device
[    0.000000] from /dev/hd[a-d] to /dev/xvd[a-d]
[    0.000000] in your root= kernel command line option
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 34 a0 0x9 a1 
0xffffffffb8e03e68 a2 0x2 ret 0xffffffffffffffda
[    0.021222] tsc: Fast TSC calibration using PIT
[    0.022715] tsc: Detected 2112.208 MHz processor
[    0.024194] tsc: Detected 2112.000 MHz TSC
[    0.027112] last_pfn = 0x3ffe0 max_arch_pfn = 0x400000000
[    0.028983] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
Memory KASLR using RDRAND RDTSC...
[    0.040593] found SMP MP-table at [mem 0x000f5bf0-0x000f5bff]
[    0.042372] Using GB pages for direct mapping
[    0.044274] ACPI: Early table checksum verification disabled
[    0.045818] ACPI: RSDP 0x00000000000F5A10 000014 (v00 BOCHS )
[    0.047436] ACPI: RSDT 0x000000003FFE1BDD 000034 (v01 BOCHS  BXPC     
00000001 BXPC 00000001)
[    0.049981] ACPI: FACP 0x000000003FFE1A79 000074 (v01 BOCHS  BXPC     
00000001 BXPC 00000001)
[    0.052664] ACPI: DSDT 0x000000003FFE0040 001A39 (v01 BOCHS  BXPC     
00000001 BXPC 00000001)
[    0.055603] ACPI: FACS 0x000000003FFE0000 000040
[    0.057391] ACPI: APIC 0x000000003FFE1AED 000090 (v01 BOCHS  BXPC     
00000001 BXPC 00000001)
[    0.060233] ACPI: HPET 0x000000003FFE1B7D 000038 (v01 BOCHS  BXPC     
00000001 BXPC 00000001)
[    0.063058] ACPI: WAET 0x000000003FFE1BB5 000028 (v01 BOCHS  BXPC     
00000001 BXPC 00000001)
[    0.065812] ACPI: Reserving FACP table memory at [mem 0x3ffe1a79-0x3ffe1aec]
[    0.068290] ACPI: Reserving DSDT table memory at [mem 0x3ffe0040-0x3ffe1a78]
[    0.070623] ACPI: Reserving FACS table memory at [mem 0x3ffe0000-0x3ffe003f]
[    0.072976] ACPI: Reserving APIC table memory at [mem 0x3ffe1aed-0x3ffe1b7c]
[    0.075241] ACPI: Reserving HPET table memory at [mem 0x3ffe1b7d-0x3ffe1bb4]
[    0.077313] ACPI: Reserving WAET table memory at [mem 0x3ffe1bb5-0x3ffe1bdc]
[    0.080178] No NUMA configuration found
[    0.081189] Faking a node at [mem 0x0000000000000000-0x000000003ffdffff]
[    0.083037] NODE_DATA(0) allocated [mem 0x3ffb5000-0x3ffdffff]
[    0.158885] Zone ranges:
[    0.159679]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.161442]   DMA32    [mem 0x0000000001000000-0x000000003ffdffff]
[    0.163104]   Normal   empty
[    0.163924]   Device   empty
[    0.164732] Movable zone start for each node
[    0.165899] Early memory node ranges
[    0.166843]   node   0: [mem 0x0000000000001000-0x000000000009efff]
[    0.168562]   node   0: [mem 0x0000000000100000-0x000000003ffdffff]
[    0.170032] Initmem setup node 0 [mem 0x0000000000001000-0x000000003ffdffff]
[    0.171611] On node 0, zone DMA: 1 pages in unavailable ranges
[    0.171668] On node 0, zone DMA: 97 pages in unavailable ranges
[    0.175214] On node 0, zone DMA32: 32 pages in unavailable ranges
[    0.177220] ACPI: PM-Timer IO Port: 0x608
[    0.179928] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.181520] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[    0.183448] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.185083] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    0.186633] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.188303] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    0.190365] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    0.192528] ACPI: Using ACPI (MADT) for SMP configuration information
[    0.194438] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.196053] TSC deadline timer available
[    0.197268] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
[    0.198877] PM: hibernation: Registered nosave memory: [mem 
0x00000000-0x00000fff]
[    0.201200] PM: hibernation: Registered nosave memory: [mem 
0x0009f000-0x0009ffff]
[    0.203531] PM: hibernation: Registered nosave memory: [mem 
0x000a0000-0x000effff]
[    0.205839] PM: hibernation: Registered nosave memory: [mem 
0x000f0000-0x000fffff]
[    0.208122] PM: hibernation: Registered nosave memory: [mem 
0x00bf9000-0x00bf9fff]
[    0.210303] PM: hibernation: Registered nosave memory: [mem 
0x00bf9000-0x00bf9fff]
[    0.212595] [mem 0x40000000-0xfeffbfff] available for PCI devices
[    0.214447] Booting paravirtualized kernel on Xen HVM
[    0.216050] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 
0xffffffff, max_idle_ns: 1910969940391419 ns
[    0.226546] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:4 nr_cpu_ids:4 
nr_node_ids:1
[    0.232545] percpu: Embedded 61 pages/cpu s212992 r8192 d28672 u524288
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 24 a0 0xa a1 0x0 a2 
0xffffffffb8e03ed0 ret 0x0
kvm_xen_set_vcpu_attr vcpu attr cpu 0 type 0 gpa 0x3ec1e0e0
[    0.234134] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, 
linear)
[    0.235651] Fallback order for Node 0: 0 
[    0.236618] Built 1 zonelists, mobility grouping on.  Total pages: 257759
[    0.238432] Policy zone: DMA32
[    0.239373] Kernel command line: console=ttyS0 earlyprintk=ttyS0 panic=10000
[    0.242530] Dentry cache hash table entries: 131072 (order: 8, 1048576 
bytes, linear)
[    0.245280] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, 
linear)
[    0.247676] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.253165] Memory: 978800K/1048056K available (16393K kernel code, 3607K 
rwdata, 10784K rodata, 2704K init, 6288K bss, 68996K reserved, 0K cma-reserved)
[    0.256519] random: get_random_u64 called from 
__kmem_cache_create+0x2a/0x530 with crng_init=0
[    0.256838] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.260445] Kernel/User page tables isolation: enabled
[    0.261691] ftrace: allocating 48342 entries in 189 pages
[    0.278046] ftrace: allocated 189 pages with 6 groups
[    0.280372] Dynamic Preempt: voluntary
[    0.281783] rcu: Preemptible hierarchical RCU implementation.
[    0.282905] rcu:     RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=4.
[    0.284217]  Trampoline variant of Tasks RCU enabled.
[    0.285323]  Rude variant of Tasks RCU enabled.
[    0.286304]  Tracing variant of Tasks RCU enabled.
[    0.287385] rcu: RCU calculated value of scheduler-enlistment delay is 100 
jiffies.
[    0.289049] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.297553] NR_IRQS: 524544, nr_irqs: 456, preallocated irqs: 16
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 32 a0 0xb a1 
0xffffffffb8e03e98 a2 0xffff9316bec00000 ret 0xffffffffffffffda
[    0.298817] xen:events: Using 2-level ABI
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 34 a0 0x0 a1 
0xffffffffb8e03ec8 a2 0x100 ret 0x0
[    0.299811] xen:events: Xen HVM callback vector for event delivery is enabled
[    0.301653] random: crng init done (trusting CPU's manufacturer)
[    0.318080] Console: colour VGA+ 80x25
Unimplemented Xen hypercall 34 (0x1 0xffffffffb8e03eb8 0xffffffffb8e03eb8)
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 34 a0 0x1 a1 
0xffffffffb8e03eb8 a2 0x7ff0 ret 0xffffffffffffffda
[    0.319300] Cannot get hvm parameter CONSOLE_EVTCHN (18): -38!
[    0.321118] printk: console [ttyS0] enabled
[    0.321118] printk: console [ttyS0] enabled
[    0.323780] printk: bootconsole [earlyser0] disabled
[    0.323780] printk: bootconsole [earlyser0] disabled
[    0.326482] ACPI: Core revision 20211217
[    0.328222] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, 
max_idle_ns: 19112604467 ns
[    0.330092] APIC: Switch to symmetric I/O mode setup
[    0.331324] x2apic enabled
[    0.332145] Switched APIC routing to physical x2apic.
[    0.334323] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.340113] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 
0x1e71785e5dd, max_idle_ns: 440795244814 ns
[    0.341973] Calibrating delay loop (skipped), value calculated using timer 
frequency.. 4224.00 BogoMIPS (lpj=2112000)
[    0.342962] pid_max: default: 32768 minimum: 301
[    0.344027] LSM: Security Framework initializing
[    0.344995] Yama: becoming mindful.
[    0.345971] SELinux:  Initializing.
[    0.347003] LSM support for eBPF active
[    0.347710] landlock: Up and running.
[    0.348070] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, 
linear)
[    0.348982] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 
bytes, linear)
Poking KASLR using RDRAND RDTSC...
[    0.352097] x86/cpu: User Mode Instruction Prevention (UMIP) activated
[    0.353243] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[    0.353963] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[    0.355022] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user 
pointer sanitization
[    0.355969] Spectre V2 : Mitigation: Retpolines
[    0.356962] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on 
context switch
[    0.357965] Spectre V2 : Enabling Restricted Speculation for firmware calls
[    0.358972] Spectre V2 : mitigation: Enabling conditional Indirect Branch 
Prediction Barrier
[    0.359962] Speculative Store Bypass: Mitigation: Speculative Store Bypass 
disabled via prctl
[    0.360984] SRBDS: Unknown: Dependent on hypervisor status
[    0.361966] MDS: Mitigation: Clear CPU buffers
[    0.370697] Freeing SMP alternatives memory: 44K
[    0.371365] clocksource: xen: mask: 0xffffffffffffffff max_cycles: 
0x1cd42e4dffb, max_idle_ns: 881590591483 ns
Unimplemented Xen hypercall 24 (0x7 0x0 0x0)
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 24 a0 0x7 a1 0x0 a2 0x0 ret 
0xffffffffffffffda
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 24 a0 0xd a1 0x0 a2 
0xffffa734c0013e58 ret 0x0
kvm_xen_set_vcpu_attr vcpu attr cpu 0 type 1 gpa 0x123e000
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 24 a0 0x5 a1 0x0 a2 
0xffffa734c0013e48 ret 0x0
kvm_xen_set_vcpu_attr vcpu attr cpu 0 type 2 gpa 0x3ec2ec40
[    0.373086] installing Xen timer for CPU 0
Unimplemented Xen hypercall 32 (0x1 0xffffa734c0013da4 0xffffa734c0013da4)
kvm_xen_hypercall xen_hypercall: cpu 0 cpl 0 input 32 a0 0x1 a1 
0xffffa734c0013da4 a2 0x1 ret 0xffffffffffffffda
[    0.374108] ------------[ cut here ]------------
[    0.374962] kernel BUG at drivers/xen/events/events_base.c:1397!
[    0.375979] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[    0.376960] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.17.8-200.fc35.x86_64 
#1
[    0.376960] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014
[    0.376960] RIP: 0010:bind_virq_to_irq+0x1b7/0x2d0
[    0.376960] Code: c7 c2 e0 f1 15 b7 48 c7 c6 20 05 18 b9 44 89 ff e8 ee 5a 
98 ff e9 50 ff ff ff 45 31 db 83 f8 ef 74 41 85 d2 0f 89 77 ff ff ff <0f> 0b 44 
89 ff 44 89 5c 24 08 e8 fa 4a 98 ff 44 8b 5c 24 08 48 85
[    0.376960] RSP: 0000:ffffa734c0013d80 EFLAGS: 00010282
[    0.376960] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000001e120
[    0.376960] RDX: 00000000ffffffda RSI: ffffa734c0013da4 RDI: 0000000000000001
[    0.376960] RBP: 0000000000000000 R08: ffff9316811e4200 R09: 0000000000000000
[    0.376960] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000002ed20
[    0.376960] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000018
[    0.376960] FS:  0000000000000000(0000) GS:ffff9316bec00000(0000) 
knlGS:0000000000000000
[    0.376960] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.376960] CR2: ffff93168f001000 CR3: 000000000de10001 CR4: 0000000000370ef0
[    0.376960] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    0.376960] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    0.376960] Call Trace:
[    0.376960]  <TASK>
[    0.376960]  ? xen_timerop_shutdown+0x10/0x10
[    0.376960]  bind_virq_to_irqhandler+0x28/0x90
[    0.376960]  xen_setup_timer.cold+0x47/0xc5
[    0.376960]  xen_time_init+0x173/0x1a4
[    0.376960]  native_smp_prepare_cpus+0xdd/0x17e
[    0.376960]  xen_hvm_smp_prepare_cpus+0xc/0x67
[    0.376960]  kernel_init_freeable+0xe8/0x251
[    0.376960]  ? rest_init+0xd0/0xd0
[    0.376960]  kernel_init+0x16/0x130
[    0.376960]  ret_from_fork+0x22/0x30
[    0.376960]  </TASK>
[    0.376960] Modules linked in:
[    0.376965] ---[ end trace 0000000000000000 ]---
[    0.377964] RIP: 0010:bind_virq_to_irq+0x1b7/0x2d0
[    0.378874] Code: c7 c2 e0 f1 15 b7 48 c7 c6 20 05 18 b9 44 89 ff e8 ee 5a 
98 ff e9 50 ff ff ff 45 31 db 83 f8 ef 74 41 85 d2 0f 89 77 ff ff ff <0f> 0b 44 
89 ff 44 89 5c 24 08 e8 fa 4a 98 ff 44 8b 5c 24 08 48 85
[    0.378965] RSP: 0000:ffffa734c0013d80 EFLAGS: 00010282
[    0.379962] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000001e120
[    0.380965] RDX: 00000000ffffffda RSI: ffffa734c0013da4 RDI: 0000000000000001
[    0.381962] RBP: 0000000000000000 R08: ffff9316811e4200 R09: 0000000000000000
[    0.382964] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000002ed20
[    0.383963] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000018
[    0.384964] FS:  0000000000000000(0000) GS:ffff9316bec00000(0000) 
knlGS:0000000000000000
[    0.385963] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.386962] CR2: ffff93168f001000 CR3: 000000000de10001 CR4: 0000000000370ef0
[    0.387964] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    0.388962] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    0.389975] Kernel panic - not syncing: Attempted to kill init! 
exitcode=0x0000000b
[    0.390960] Rebooting in 10000 seconds..

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Description: S/MIME cryptographic signature