[Xen-devel] Problem on test with ovmf

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

I saw that pv on ovmf are finally accepted upstream so I tested updated ovmf (pvdisk-v5 from people/aperard/ovmf.git).
I tried to install windows 7 pro 64 bit domUs but it show only black screen after initial windows dvd loading bar.
I saw these errors in xl dmesg:
(XEN) page_alloc.c:1646:d2v0 Over-allocation for domain 2: 524545 > 524544
(XEN) memory.c:155:d2v0 Could not allocate order=0 extent: id=2 memflags=0 (0 of 1)

I have almost 10 gb of ram free so is not lack of resources problem but seems unexpected case or bug in hvmloader or other xen part.
I also check qemu log but there is any warning or errors.

Here the full xl dmesg about the domU:

(d2) HVM Loader
(d2) Detected Xen v4.5-unstable
(d2) Xenbus rings @0xfeffc000, event channel 1
(d2) System requested OVMF
(d2) CPU speed is 2660 MHz
(d2) Relocating guest memory for lowmem MMIO space disabled
(XEN) irq.c:270: Dom2 PCI link 0 changed 0 -> 5
(d2) PCI-ISA link 0 routed to IRQ5
(XEN) irq.c:270: Dom2 PCI link 1 changed 0 -> 10
(d2) PCI-ISA link 1 routed to IRQ10
(XEN) irq.c:270: Dom2 PCI link 2 changed 0 -> 11
(d2) PCI-ISA link 2 routed to IRQ11
(XEN) irq.c:270: Dom2 PCI link 3 changed 0 -> 5
(d2) PCI-ISA link 3 routed to IRQ5
(d2) pci dev 01:3 INTA->IRQ10
(d2) pci dev 02:0 INTA->IRQ11
(d2) pci dev 03:0 INTA->IRQ5
(d2) pci dev 04:0 INTA->IRQ5
(d2) pci dev 05:0 INTA->IRQ10
(d2) pci dev 06:0 INTA->IRQ11
(d2) pci dev 1d:0 INTA->IRQ10
(d2) pci dev 1d:1 INTB->IRQ11
(d2) pci dev 1d:2 INTC->IRQ5
(d2) pci dev 1d:7 INTD->IRQ5
(d2) No RAM in high memory; setting high_mem resource base to 100000000
(d2) pci dev 05:0 bar 10 size 004000000: 0f0000000
(d2) pci dev 05:0 bar 14 size 004000000: 0f4000000
(d2) pci dev 02:0 bar 14 size 001000000: 0f8000008
(d2) pci dev 06:0 bar 30 size 000040000: 0f9000000
(d2) pci dev 05:0 bar 30 size 000010000: 0f9040000
(d2) pci dev 03:0 bar 10 size 000004000: 0f9050000
(d2) pci dev 05:0 bar 18 size 000002000: 0f9054000
(d2) pci dev 04:0 bar 14 size 000001000: 0f9056000
(d2) pci dev 1d:7 bar 10 size 000001000: 0f9057000
(d2) pci dev 02:0 bar 10 size 000000100: 00000c001
(d2) pci dev 06:0 bar 10 size 000000100: 00000c101
(d2) pci dev 06:0 bar 14 size 000000100: 0f9058000
(d2) pci dev 04:0 bar 10 size 000000020: 00000c201
(d2) pci dev 05:0 bar 1c size 000000020: 00000c221
(d2) pci dev 1d:0 bar 20 size 000000020: 00000c241
(d2) pci dev 1d:1 bar 20 size 000000020: 00000c261
(d2) pci dev 1d:2 bar 20 size 000000020: 00000c281
(d2) pci dev 01:1 bar 20 size 000000010: 00000c2a1
(d2) Multiprocessor initialisation:
(d2)  - CPU0 ... 36-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done.
(d2)  - CPU1 ... 36-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done.
(d2) Testing HVM environment:
(d2)  - REP INSB across page boundaries ... passed
(d2)  - GS base MSRs and SWAPGS ... passed
(d2) Passed 2 of 2 tests
(d2) Writing SMBIOS tables ...
(d2) Loading OVMF ...
(XEN) page_alloc.c:1646:d2v0 Over-allocation for domain 2: 524545 > 524544
(XEN) memory.c:155:d2v0 Could not allocate order=0 extent: id=2 memflags=0 (0 of 1)
(d2) Loading ACPI ...
(d2) S3 disabled
(d2) S4 disabled
(d2) vm86 TSS at fc012c80
(d2) BIOS map:
(d2)  ffe00000-ffffffff: Main BIOS
(d2) E820 table:
(d2)  [00]: 00000000:00000000 - 00000000:000a0000: RAM
(d2)  HOLE: 00000000:000a0000 - 00000000:000f0000
(d2)  [01]: 00000000:000f0000 - 00000000:00100000: RESERVED
(d2)  [02]: 00000000:00100000 - 00000000:77eab000: RAM
(d2)  HOLE: 00000000:77eab000 - 00000000:fc000000
(d2)  [03]: 00000000:fc000000 - 00000001:00000000: RESERVED
(d2) Invoking OVMF ...
(XEN) irq.c:270: Dom2 PCI link 0 changed 5 -> 11
(XEN) irq.c:270: Dom2 PCI link 1 changed 10 -> 11
(XEN) irq.c:270: Dom2 PCI link 2 changed 11 -> 10
(XEN) irq.c:270: Dom2 PCI link 3 changed 5 -> 10

And the domU's xl cfg:
name='W7-UEFI'
builder="hvm"
bios="ovmf"
memory=2048
vcpus=2
acpi_s3=0
acpi_s4=0
vif=['bridge=xenbr0,mac=00:16:3e:b6:c7:d1']
disk=['/mnt/vm/disks/W7-UEFI.disk1.xm,raw,hda,rw','/mnt/vm/iso/W7PRO64SP1.iso,raw,hdb,ro,cdrom']
boot='dc'
device_model_version="qemu-xen"
viridian=1
vnc=0
keymap="it"

vga="qxl"
spice=1
spicehost='0.0.0.0'
spiceport=6006
spicedisable_ticketing=1
spicevdagent=1
spice_clipboard_sharing=0
spiceusbredirection=4
soundhw="hda"
localtime=1
usbversion=2

I did other ovmf tests very long time ago, probably one year or more and I not remember exactly them.

If you need more informations and or test tell me and I'll post them.

Thanks for any reply and sorry for my bad english.

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