* xen EFI boot and vga-passthrough
@ 2012-11-12 19:08 Kristian Hagsted Rasmussen
2012-11-12 19:18 ` Kristian Hagsted Rasmussen
2012-11-12 21:24 ` Laszlo Ersek
0 siblings, 2 replies; 5+ messages in thread
From: Kristian Hagsted Rasmussen @ 2012-11-12 19:08 UTC (permalink / raw)
To: xen-devel@lists.xen.org
[-- Attachment #1.1: Type: text/plain, Size: 1321 bytes --]
Hi all
I can't seem to find any information on vga-passthrough when booting through xen.efi, so I assume it should work. But I encounter a problem on a windows 7 HVM that boots fine when dom0 is booted through MBR but fails when dom0 is booted through UEFI.
My system is:
DQ77KB motherboard with bios version 44
Core i7-3779T with VT-d
Intel HD graphics 4000
In the qemu log it seem like xen cannot reach the vga-bios. Is this a known problem when booting through xen.efi or is it a bug?
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:02.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x2.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004)
pt_register_regions: IO region registered (size=0x10000000 base_addr=0xe000000c)
pt_register_regions: IO region registered (size=0x00000040 base_addr=0x0000f001)
setup_vga_pt: vga bios size (0x0) is invalid!
register_real_device: Setup VGA BIOS of passthroughed gfx failed!
Log file is attached.
Kind regards Kristian Hagsted Rasmussen
[-- Attachment #1.2: Type: text/html, Size: 5017 bytes --]
[-- Attachment #2: windows-domU.log --]
[-- Type: application/octet-stream, Size: 6272 bytes --]
domid: 6
Using xvda for guest's hda
Using file /dev/sda6 in read-write mode
Watching /local/domain/0/device-model/6/logdirty/cmd
Watching /local/domain/0/device-model/6/command
Watching /local/domain/6/cpu
char device redirected to /dev/pts/4
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = 7ab99945-ca42-4230-9628-0e82c8bae257
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/6/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error. /vm/7ab99945-ca42-4230-9628-0e82c8bae257/vncpasswd.
Log-dirty: no command yet.
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
vcpu-set: watch node error.
xs_read(/local/domain/6/log-throttling): read error
qemu: ignoring not-understood drive `/local/domain/6/log-throttling'
medium change watch on `/local/domain/6/log-throttling' - unknown device, ignored
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:02.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x2.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004)
pt_register_regions: IO region registered (size=0x10000000 base_addr=0xe000000c)
pt_register_regions: IO region registered (size=0x00000040 base_addr=0x0000f001)
setup_vga_pt: vga bios size (0x0) is invalid!
register_real_device: Setup VGA BIOS of passthroughed gfx failed!
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1a.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x1a.0x0
pt_register_regions: IO region registered (size=0x00000400 base_addr=0xf7d38000)
pci_intx: intx=1
register_real_device: Real physical device 00:1a.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1b.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x1b.0x0
pt_register_regions: IO region registered (size=0x00004000 base_addr=0xf7d30004)
pci_intx: intx=1
register_real_device: Real physical device 00:1b.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1d.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x1d.0x0
pt_register_regions: IO region registered (size=0x00000400 base_addr=0xf7d37000)
pci_intx: intx=1
register_real_device: Real physical device 00:1d.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 01:00.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x1:0x0.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7800004)
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7400004)
pci_intx: intx=1
register_real_device: Real physical device 01:00.0 registered successfuly!
IRQ type = INTx
pt_iomem_map: e_phys=f1400000 maddr=f7800000 type=0 len=4194304 index=0 first_map=1
pt_iomem_map: e_phys=f1800000 maddr=f7400000 type=0 len=4194304 index=2 first_map=1
pt_iomem_map: e_phys=f1c20000 maddr=f7d30000 type=0 len=16384 index=0 first_map=1
pt_iomem_map: e_phys=f1c24000 maddr=f7d38000 type=0 len=4096 index=0 first_map=1
pt_iomem_map: e_phys=f1c25000 maddr=f7d37000 type=0 len=4096 index=0 first_map=1
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.
pt_iomem_map: e_phys=ffffffff maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c24000 maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=f1c20000 maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c25000 maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7400000 type=0 len=4194304 index=2 first_map=0
pt_iomem_map: e_phys=f1400000 maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=f1800000 maddr=f7400000 type=0 len=4194304 index=2 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c24000 maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c25000 maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c20000 maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7400000 type=0 len=4194304 index=2 first_map=0
pt_iomem_map: e_phys=f1400000 maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=f1800000 maddr=f7400000 type=0 len=4194304 index=2 first_map=0
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
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Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: xen EFI boot and vga-passthrough
2012-11-12 19:08 xen EFI boot and vga-passthrough Kristian Hagsted Rasmussen
@ 2012-11-12 19:18 ` Kristian Hagsted Rasmussen
[not found] ` <CADnevChOxU8Ut3PQX28+E56uFZBiryLQyN3mZ1hL-ddTfiQ7+A@mail.gmail.com>
2012-11-12 21:24 ` Laszlo Ersek
1 sibling, 1 reply; 5+ messages in thread
From: Kristian Hagsted Rasmussen @ 2012-11-12 19:18 UTC (permalink / raw)
To: Kristian Hagsted Rasmussen, xen-devel@lists.xen.org
[-- Attachment #1: Type: text/plain, Size: 1617 bytes --]
Hi all
I can't seem to find any information on vga-passthrough when booting through xen.efi, so I assume it should work. But I encounter a problem on a windows 7 HVM that boots fine when dom0 is booted through MBR but fails when dom0 is booted through UEFI.
My system is:
DQ77KB motherboard with bios version 44
Core i7-3779T with VT-d
Intel HD graphics 4000
In the qemu log it seem like xen cannot reach the vga-bios. Is this a known problem when booting through xen.efi or is it a bug?
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:02.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x2.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004)
pt_register_regions: IO region registered (size=0x10000000 base_addr=0xe000000c)
pt_register_regions: IO region registered (size=0x00000040 base_addr=0x0000f001)
setup_vga_pt: vga bios size (0x0) is invalid!
register_real_device: Setup VGA BIOS of passthroughed gfx failed!
Log file is attached.
Just compared a log file from efi boot to one from MBR boot and found this discrepancy between the two:
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xdfc00004) - MBR boot see last addr 0xdfc00004
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004) - EFI boot compare to MBR 0xf7000004
Kind regards Kristian Hagsted Rasmussen
[-- Attachment #2: windows-domU.log --]
[-- Type: application/octet-stream, Size: 6272 bytes --]
domid: 6
Using xvda for guest's hda
Using file /dev/sda6 in read-write mode
Watching /local/domain/0/device-model/6/logdirty/cmd
Watching /local/domain/0/device-model/6/command
Watching /local/domain/6/cpu
char device redirected to /dev/pts/4
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = 7ab99945-ca42-4230-9628-0e82c8bae257
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/6/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error. /vm/7ab99945-ca42-4230-9628-0e82c8bae257/vncpasswd.
Log-dirty: no command yet.
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
vcpu-set: watch node error.
xs_read(/local/domain/6/log-throttling): read error
qemu: ignoring not-understood drive `/local/domain/6/log-throttling'
medium change watch on `/local/domain/6/log-throttling' - unknown device, ignored
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:02.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x2.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004)
pt_register_regions: IO region registered (size=0x10000000 base_addr=0xe000000c)
pt_register_regions: IO region registered (size=0x00000040 base_addr=0x0000f001)
setup_vga_pt: vga bios size (0x0) is invalid!
register_real_device: Setup VGA BIOS of passthroughed gfx failed!
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1a.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x1a.0x0
pt_register_regions: IO region registered (size=0x00000400 base_addr=0xf7d38000)
pci_intx: intx=1
register_real_device: Real physical device 00:1a.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1b.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x1b.0x0
pt_register_regions: IO region registered (size=0x00004000 base_addr=0xf7d30004)
pci_intx: intx=1
register_real_device: Real physical device 00:1b.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1d.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x1d.0x0
pt_register_regions: IO region registered (size=0x00000400 base_addr=0xf7d37000)
pci_intx: intx=1
register_real_device: Real physical device 00:1d.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 01:00.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x1:0x0.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7800004)
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7400004)
pci_intx: intx=1
register_real_device: Real physical device 01:00.0 registered successfuly!
IRQ type = INTx
pt_iomem_map: e_phys=f1400000 maddr=f7800000 type=0 len=4194304 index=0 first_map=1
pt_iomem_map: e_phys=f1800000 maddr=f7400000 type=0 len=4194304 index=2 first_map=1
pt_iomem_map: e_phys=f1c20000 maddr=f7d30000 type=0 len=16384 index=0 first_map=1
pt_iomem_map: e_phys=f1c24000 maddr=f7d38000 type=0 len=4096 index=0 first_map=1
pt_iomem_map: e_phys=f1c25000 maddr=f7d37000 type=0 len=4096 index=0 first_map=1
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.
pt_iomem_map: e_phys=ffffffff maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c24000 maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=f1c20000 maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c25000 maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7400000 type=0 len=4194304 index=2 first_map=0
pt_iomem_map: e_phys=f1400000 maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=f1800000 maddr=f7400000 type=0 len=4194304 index=2 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c24000 maddr=f7d38000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c25000 maddr=f7d37000 type=0 len=4096 index=0 first_map=0
pt_iomem_map: e_phys=f1c20000 maddr=f7d30000 type=0 len=16384 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=ffffffff maddr=f7400000 type=0 len=4194304 index=2 first_map=0
pt_iomem_map: e_phys=f1400000 maddr=f7800000 type=0 len=4194304 index=0 first_map=0
pt_iomem_map: e_phys=f1800000 maddr=f7400000 type=0 len=4194304 index=2 first_map=0
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
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Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: xen EFI boot and vga-passthrough
2012-11-12 19:08 xen EFI boot and vga-passthrough Kristian Hagsted Rasmussen
2012-11-12 19:18 ` Kristian Hagsted Rasmussen
@ 2012-11-12 21:24 ` Laszlo Ersek
2012-11-13 6:36 ` Kristian Hagsted Rasmussen
1 sibling, 1 reply; 5+ messages in thread
From: Laszlo Ersek @ 2012-11-12 21:24 UTC (permalink / raw)
To: Kristian Hagsted Rasmussen; +Cc: xen-devel@lists.xen.org
On 11/12/12 20:08, Kristian Hagsted Rasmussen wrote:
> Hi all
>
> I can't seem to find any information on vga-passthrough when booting
> through xen.efi, so I assume it should work. But I encounter a problem
> on a windows 7 HVM that boots fine when dom0 is booted through MBR but
> fails when dom0 is booted through UEFI.
>
> My system is:
> DQ77KB motherboard with bios version 44
> Core i7-3779T with VT-d
> Intel HD graphics 4000
>
> In the qemu log it seem like xen cannot reach the vga-bios. Is this a
> known problem when booting through xen.efi or is it a bug?
The legacy VGA BIOS is not present on UEFI platforms unless an
(optional) compatibility support module provides it. (Tangentially,
Secure Boot disables CSMs.)
Windows 7 / Windows 2008 R2 have a bug: even when booted on an UEFI
platform, they depend on the optional VGA BIOS unconditionally. This
seems to have been fixed in Windows 8 / Windows Server 2012.
See <http://www.linux-kvm.org/page/OVMF#Windows_Server_2008_R2_SP1>
and/or the long "OVMF + Windows 2008 r2 sp1" thread on edk2-devel.
(Apologies if I misunderstood your question. Admittedly, I haven't done
any homework wrt. xen.efi or vga passthrough. But your email had too
many keywords to push my buttons.)
Laszlo
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: xen EFI boot and vga-passthrough
2012-11-12 21:24 ` Laszlo Ersek
@ 2012-11-13 6:36 ` Kristian Hagsted Rasmussen
0 siblings, 0 replies; 5+ messages in thread
From: Kristian Hagsted Rasmussen @ 2012-11-13 6:36 UTC (permalink / raw)
To: Laszlo Ersek; +Cc: xen-devel@lists.xen.org
> -----Original Message-----
> From: Laszlo Ersek [mailto:lersek@redhat.com]
> On 11/12/12 20:08, Kristian Hagsted Rasmussen wrote:
> > Hi all
> >
> > I can't seem to find any information on vga-passthrough when booting
> > through xen.efi, so I assume it should work. But I encounter a problem
> > on a windows 7 HVM that boots fine when dom0 is booted through MBR
> but
> > fails when dom0 is booted through UEFI.
> >
> > My system is:
> > DQ77KB motherboard with bios version 44 Core i7-3779T with VT-d Intel
> > HD graphics 4000
> >
> > In the qemu log it seem like xen cannot reach the vga-bios. Is this a
> > known problem when booting through xen.efi or is it a bug?
>
> The legacy VGA BIOS is not present on UEFI platforms unless an
> (optional) compatibility support module provides it. (Tangentially, Secure
> Boot disables CSMs.)
>
> Windows 7 / Windows 2008 R2 have a bug: even when booted on an UEFI
> platform, they depend on the optional VGA BIOS unconditionally. This seems
> to have been fixed in Windows 8 / Windows Server 2012.
I will have to try to install windows 8 when I have time then.
Just compared a log file from efi boot to one from MBR boot and found this discrepancy between the two:
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xdfc00004) - MBR boot see last addr 0xdfc00004
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004) - EFI boot compare to MBR 0xf7000004
Can UEFI explain this discrepancy in base_addr?
It is admittedly the first portion of memory on the graphic card and is 4M in size, so I suspect it is the vga-bios.
And if it should not be present when boot through UEFI I will happily live with the error, if windows 8 can boot.
> See <http://www.linux-
> kvm.org/page/OVMF#Windows_Server_2008_R2_SP1>
> and/or the long "OVMF + Windows 2008 r2 sp1" thread on edk2-devel.
>
> (Apologies if I misunderstood your question. Admittedly, I haven't done any
> homework wrt. xen.efi or vga passthrough. But your email had too many
> keywords to push my buttons.)
>
> Laszlo
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2012-11-13 6:36 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-11-12 19:08 xen EFI boot and vga-passthrough Kristian Hagsted Rasmussen
2012-11-12 19:18 ` Kristian Hagsted Rasmussen
[not found] ` <CADnevChOxU8Ut3PQX28+E56uFZBiryLQyN3mZ1hL-ddTfiQ7+A@mail.gmail.com>
2012-11-13 6:28 ` Kristian Hagsted Rasmussen
2012-11-12 21:24 ` Laszlo Ersek
2012-11-13 6:36 ` Kristian Hagsted Rasmussen
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