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Re: [Xen-devel] [RFC PATCH 0/15]: PVH xen: Patches for PVH guests

On 16/01/13 00:55, Mukesh Rathor wrote:
> On Tue, 15 Jan 2013 23:46:52 +0100
> Roger Pau Monnà <roger.pau@xxxxxxxxxx> wrote:
>> On 15/01/13 20:49, Mukesh Rathor wrote:
>>> Hi Roger,
>>> Ah yes, you need the following patch on your linux side. Please keep
>>> me posted how it goes, and whatever testing/performance stuff you
>>> do.
>> Hello Mukesh,
>> I've applied the following patch to the Linux kernel and recompiled, 
>> and now features in elf note seems to be complete (as reported by xl):
>> xc: detail: elf_xen_parse_note: FEATURES =
>> "!writable_page_tables|pae_pgdir_above_4gb|writable_descriptor_tables|auto_translated_physmap|supervisor_mode_kernel|hvm_callback_vector"
>> But still the domain boots in PV mode. I've attached the output 
>> of 'xl -vvv create config.cfg' and dmesg. I think I've got all the 
>> hypervisor/tools patches applied correctly, but I will check again 
>> tomorrow morning in case I'm missing something.
>> Booting paravirtualized kernel on Xen
> Hmmm. not sure why. Make sure you installed the libraries in the correct
> 64bit locations (I've 64bit dom0), etc.. You should see:
>    Booting paravirtualized kernel with PVH extensions on Xen

Dom0 seems to also fail booting as PVH mode, but it doesn't print much 
info regarding the failure (maybe you are able to make more sense out 
of it than me):

 __  __            _  _    _____                    _        _     _      
 \ \/ /___ _ __   | || |  |___ /    _   _ _ __  ___| |_ __ _| |__ | | ___ 
  \  // _ \ '_ \  | || |_   |_ \ __| | | | '_ \/ __| __/ _` | '_ \| |/ _ \
  /  \  __/ | | | |__   _| ___) |__| |_| | | | \__ \ || (_| | |_) | |  __/
 /_/\_\___|_| |_|    |_|(_)____/    \__,_|_| |_|___/\__\__,_|_.__/|_|\___|
(XEN) Xen version 4.3-unstable (root@) (gcc (Debian 4.4.5-8) 4.4.5) Tue Jan 15 
23:03:30 GMT 2013
(XEN) Latest ChangeSet: unavailable
(XEN) Bootloader: PXELINUX 4.02 debian-20101014 
(XEN) Command line: dom0pvh com1=115200,8n1 guest_loglvl=all loglvl=all 
console=com1 dom0_mem=1024M
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN)  EDID info not retrieved because of reasons unknown
(XEN) Disc information:
(XEN)  Found 2 MBR signatures
(XEN)  Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 0000000000092400 (usable)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000dfdf9c00 (usable)
(XEN)  00000000dfdf9c00 - 00000000dfe4bc00 (ACPI NVS)
(XEN)  00000000dfe4bc00 - 00000000dfe4dc00 (ACPI data)
(XEN)  00000000dfe4dc00 - 00000000e0000000 (reserved)
(XEN)  00000000f8000000 - 00000000fd000000 (reserved)
(XEN)  00000000fe000000 - 00000000fed00400 (reserved)
(XEN)  00000000fee00000 - 00000000fef00000 (reserved)
(XEN)  00000000ffb00000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 00000001a0000000 (usable)
(XEN) ACPI: RSDP 000FEC30, 0024 (r2 DELL  )
(XEN) ACPI: XSDT 000FCCC7, 007C (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: FACP 000FCDB7, 00F4 (r3 DELL    B10K          15 ASL        61)
(XEN) ACPI: DSDT FFE9E951, 4A74 (r1   DELL    dt_ex     1000 INTL 20050624)
(XEN) ACPI: SSDT FFEA34D6, 009C (r1   DELL    st_ex     1000 INTL 20050624)
(XEN) ACPI: APIC 000FCEAB, 015E (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: BOOT 000FD009, 0028 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: ASF! 000FD031, 0096 (r32 DELL    B10K          15 ASL        61)
(XEN) ACPI: MCFG 000FD0C7, 003C (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: HPET 000FD103, 0038 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: TCPA 000FD35F, 0032 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: DMAR 000FD391, 00C8 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: SLIC 000FD13B, 0176 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: SSDT DFE4DC00, 058C (r1  INTEL PPM RCM  80000001 INTL 20061109)
(XEN) System RAM: 6141MB (6288940kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-00000001a0000000
(XEN) Domain heap initialised
(XEN) DMI 2.5 present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x808
(XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[804,0], pm1x_evt[800,0]
(XEN) ACPI:                  wakeup_vec[dfdf9c0c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 7:10 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
(XEN) Processor #4 7:10 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x05] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x01] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x02] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x03] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x11] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x12] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x13] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x14] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x15] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x16] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x17] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x18] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x19] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x20] lapic_id[0x00] disabled)
(XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
(XEN) ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) ACPI: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24])
(XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 2 I/O APICs
(XEN) ACPI: HPET id: 0x8086a301 base: 0xfed00000
(XEN) Table is not found!
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) SMP: Allowing 32 CPUs (30 hotplug CPUs)
(XEN) IRQ limits: 48 GSI, 352 MSI/MSI-X
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2400.170 MHz processor.
(XEN) Initing memory sharing.
(XEN) mce_intel.c:719: MCA Capability: BCAST 1 SER 0 CMCI 1 firstbank 0 
extended MCE MSR 0
(XEN) Intel machine check reporting enabled
(XEN) PCI: MCFG configuration 0: base f8000000 segment 0000 buses 00 - 3f
(XEN) PCI: MCFG area at f8000000 reserved in E820
(XEN) PCI: Using MCFG for segment 0000 bus 00-3f
(XEN) Intel VT-d supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control 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 Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN)  -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) mwait-idle: MWAIT substates: 0x1120
(XEN) mwait-idle: v0.4 model 0x1a
(XEN) mwait-idle: lapic_timer_reliable_states 0x2
(XEN) HPET: 4 timers (0 will be used for broadcast)
(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) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB
(XEN) Brought up 2 CPUs
(XEN) ACPI sleep modes: S3
(XEN) mcheck_poll: Machine check polling timer started.
(XEN) Yay... PVH guest. domid:0
(XEN) elf_parse_binary: phdr: paddr=0x1000000 memsz=0x7e4000
(XEN) elf_parse_binary: phdr: paddr=0x1800000 memsz=0x8b0f0
(XEN) elf_parse_binary: phdr: paddr=0x188c000 memsz=0x13e00
(XEN) elf_parse_binary: phdr: paddr=0x18a0000 memsz=0x573000
(XEN) elf_parse_binary: memory: 0x1000000 -> 0x1e13000
(XEN) elf_xen_parse_note: GUEST_OS = "linux"
(XEN) elf_xen_parse_note: GUEST_VERSION = "2.6"
(XEN) elf_xen_parse_note: XEN_VERSION = "xen-3.0"
(XEN) elf_xen_parse_note: VIRT_BASE = 0xffffffff80000000
(XEN) elf_xen_parse_note: ENTRY = 0xffffffff818a0210
(XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xffffffff81001000
(XEN) elf_xen_parse_note: FEATURES = 
(XEN) elf_xen_parse_note: PAE_MODE = "yes"
(XEN) elf_xen_parse_note: LOADER = "generic"
(XEN) elf_xen_parse_note: unknown xen elf note (0xd)
(XEN) elf_xen_parse_note: SUSPEND_CANCEL = 0x1
(XEN) elf_xen_parse_note: HV_START_LOW = 0xffff800000000000
(XEN) elf_xen_parse_note: PADDR_OFFSET = 0x0
(XEN) elf_xen_addr_calc_check: addresses:
(XEN)     virt_base        = 0xffffffff80000000
(XEN)     elf_paddr_offset = 0x0
(XEN)     virt_offset      = 0xffffffff80000000
(XEN)     virt_kstart      = 0xffffffff81000000
(XEN)     virt_kend        = 0xffffffff81e13000
(XEN)     virt_entry       = 0xffffffff818a0210
(XEN)     p2m_base         = 0xffffffffffffffff
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1e13000
(XEN)  Dom0 alloc.:   0000000194000000->0000000198000000 (243562 pages to be 
(XEN)  Init. ramdisk: 000000019f76a000->000000019ffffa00
(XEN)  Loaded kernel: ffffffff81000000->ffffffff81e13000
(XEN)  Init. ramdisk: ffffffff81e13000->ffffffff826a8a00
(XEN)  Phys-Mach map: ffffffff826a9000->ffffffff828a9000
(XEN)  Start info:    ffffffff828a9000->ffffffff828aa4b4
(XEN)  Page tables:   ffffffff828ab000->ffffffff828c4000
(XEN)  Boot stack:    ffffffff828c4000->ffffffff828c5000
(XEN)  TOTAL:         ffffffff80000000->ffffffff82c00000
(XEN)  ENTRY ADDRESS: ffffffff818a0210
(XEN) Dom0 has maximum 2 VCPUs
(XEN) _elf_load_binary: phdr 0 at 0xffffffff81000000 -> 0xffffffff817e4000
(XEN) _elf_load_binary: phdr 1 at 0xffffffff81800000 -> 0xffffffff8188b0f0
(XEN) _elf_load_binary: phdr 2 at 0xffffffff8188c000 -> 0xffffffff8189fe00
(XEN) _elf_load_binary: phdr 3 at 0xffffffff818a0000 -> 0xffffffff81926000
(XEN) Scrubbing Free RAM: 
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
(XEN) Freed 256kB init memory.
(XEN) <vm_launch_fail> error code 7
(XEN) domain_crash_sync called from vmcs.c:1346
(XEN) Domain 0 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-4.3-unstable  x86_64  debug=y  Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    e033:[<ffffffff818a0210>]
(XEN) RFLAGS: 0000000000000202   EM: 1   CONTEXT: pv guest
(XEN) rax: 0000000000000000   rbx: ffff82c4802c0000   rcx: ffff82c4802c7f80
(XEN) rdx: ffff82c4801d0106   rsi: 0000000000000000   rdi: ffff82c4801dd2a8
(XEN) rbp: ffff82c480105de0   rsp: ffffffff828c5000   r8:  0000000000000000
(XEN) r9:  ffff82c480105e4f   r10: ffff82c4802c7f70   r11: 0000000000000000
(XEN) r12: ffff82c4802c7f50   r13: ffff83019e61d000   r14: 0000000000000000
(XEN) r15: ffff82c4801877ad   cr0: 000000008005003b   cr4: 00000000000026f0
(XEN) cr3: 0000000199ee9000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e02b   cs: e033
(XEN) Guest stack trace from rsp=ffffffff828c5000:
(XEN)   Fault while accessing guest memory.
(XEN) Domain 0 crashed: rebooting machine in 5 seconds.

Thanks, Roger.

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