(XEN) parameter "placeholder" unknown!
 Xen 4.11.2
(XEN) Xen version 4.11.2 (mockbuild@[unknown]) (gcc (GCC) 9.1.1 20190503 (Red Hat 9.1.1-1)) debug=n  Mon Jul  1 21:05:42 UTC 2019
(XEN) Latest ChangeSet: 
(XEN) Bootloader: GRUB 2.03
(XEN) Command line: placeholder dom0_mem=2048M,max:2048M dom0_max_vcpus=4 iommu=no-igfx com1=115200,8n1 console=com1
(XEN) Xen image load base address: 0x7f600000
(XEN) Video information:
(XEN)  No VGA detected
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009fc00 (usable)
(XEN)  000000000009fc00 - 00000000000a0000 (reserved)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000007ffde000 (usable)
(XEN)  000000007ffde000 - 0000000080000000 (reserved)
(XEN)  00000000b0000000 - 00000000c0000000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN)  00000000feffc000 - 00000000ff000000 (reserved)
(XEN)  00000000fffc0000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000880000000 (usable)
(XEN) ACPI: RSDP 000F5A30, 0014 (r0 BOCHS )
(XEN) ACPI: RSDT 7FFE1F57, 0034 (r1 BOCHS  BXPCRSDT        1 BXPC        1)
(XEN) ACPI: FACP 7FFE1D27, 00F4 (r3 BOCHS  BXPCFACP        1 BXPC        1)
(XEN) ACPI: DSDT 7FFDFC80, 20A7 (r1 BOCHS  BXPCDSDT        1 BXPC        1)
(XEN) ACPI: FACS 7FFDFC40, 0040
(XEN) ACPI: APIC 7FFE1E1B, 00B0 (r1 BOCHS  BXPCAPIC        1 BXPC        1)
(XEN) ACPI: MCFG 7FFE1ECB, 003C (r1 BOCHS  BXPCMCFG        1 BXPC        1)
(XEN) ACPI: DMAR 7FFE1F07, 0050 (r1 BOCHS  BXPCDMAR        1 BXPC        1)
(XEN) System RAM: 32767MB (33553908kB)
(XEN) Domain heap initialised
(XEN) ACPI: 32/64X FACS address mismatch in FADT - 7ffdfc40/0000000000000000, using 32
(XEN) IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) Switched to APIC driver x2apic_cluster.
(XEN) xstate: size: 0x340 and states: 0x7
(XEN) Speculative mitigation facilities:
(XEN)   Hardware features: IBRS/IBPB STIBP SSBD SKIP_L1DFL
(XEN)   Compiled-in support: INDIRECT_THUNK SHADOW_PAGING
(XEN)   Xen settings: BTI-Thunk RETPOLINE, SPEC_CTRL: IBRS- SSBD-, Other: IBPB
(XEN)   L1TF: believed vulnerable, maxphysaddr L1D 46, CPUID 40, Safe address 10000000000
(XEN)   Support for VMs: PV: MSR_SPEC_CTRL RSB EAGER_FPU, HVM: MSR_SPEC_CTRL RSB EAGER_FPU
(XEN)   XPTI (64-bit PV only): Dom0 enabled, DomU enabled
(XEN)   PV L1TF shadowing: Dom0 disabled, DomU enabled
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Platform timer is 3.579MHz ACPI PM Timer
(XEN) Detected 2094.952 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB, 2MB, 1GB.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping enabled.
(XEN) Intel VT-d Posted Interrupt not enabled.
(XEN) Intel VT-d Shared EPT tables enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Interrupt remapping enabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using old ACK method
(XEN) Allocated console ring of 16 KiB.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN)  - APIC Register Virtualization
(XEN)  - Virtual Interrupt Delivery
(XEN)  - Posted Interrupt Processing
(XEN)  - VMCS shadowing
(XEN)  - VM Functions
(XEN)  - Page Modification Logging
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 8 CPUs
(XEN) Dom0 has maximum 792 PIRQs
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x302c000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000860000000->0000000864000000 (501938 pages to be allocated)
(XEN)  Init. ramdisk: 000000087e8b2000->000000087ffff5c0
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff8302c000
(XEN)  Init. ramdisk: 0000000000000000->0000000000000000
(XEN)  Phys-Mach map: 0000008000000000->0000008000400000
(XEN)  Start info:    ffffffff8302c000->ffffffff8302c4b4
(XEN)  Xenstore ring: 0000000000000000->0000000000000000
(XEN)  Console ring:  0000000000000000->0000000000000000
(XEN)  Page tables:   ffffffff8302d000->ffffffff8304a000
(XEN)  Boot stack:    ffffffff8304a000->ffffffff8304b000
(XEN)  TOTAL:         ffffffff80000000->ffffffff83400000
(XEN)  ENTRY ADDRESS: ffffffff82982180
(XEN) Dom0 has maximum 4 VCPUs
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Scrubbing Free RAM on 1 nodes using 8 CPUs
(XEN) ..................................done.
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
(XEN) Freed 472kB init memory
(XEN) Platform timer appears to have unexpectedly wrapped 10 or more times.