[Xen-devel] where is the graphic card driver on Xen platform

[程越强 <strongerwill@xxxxxxxxx>]

Hi all:
    I'm working on Xen platform (Xen 4.0.0, Linux kernel 2.6.31.13, Dom0), I found there is no /dev/dri and /dev/fb0, but the Xwindow is also working well
I want to know in such case, which device file is used by Xwindow, which driver in kernel space communicate with xwindow

The following is the log of Xorg.0.log:

X.Org X Server 1.7.6
Release Date: 2010-03-17
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-27-server i686 Ubuntu
Current Operating System: Linux stronger 2.6.31.13 #252 SMP Wed Nov 3 16:48:36 SGT 2010 i686
Build Date: 16 June 2010  09:31:32AM
xorg-server 2:1.7.6-2ubuntu7.2 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.16.4
    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Nov  3 16:49:54 2010
(==) Using config directory: "/usr/lib/X11/xorg.conf.d"
(==) No Layout section.  Using the first Screen section.
(==) No screen section available. Using defaults.
(**) |-->Screen "Default Screen Section" (0)
(**) |   |-->Monitor "<default monitor>"
(==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
    Entry deleted from font path.
(==) FontPath set to:
    /usr/share/fonts/X11/misc,
    /usr/share/fonts/X11/100dpi/:unscaled,
    /usr/share/fonts/X11/75dpi/:unscaled,
    /usr/share/fonts/X11/Type1,
    /usr/share/fonts/X11/100dpi,
    /usr/share/fonts/X11/75dpi,
    /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
    built-ins
(==) ModulePath set to "/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
(II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
(II) Loader magic: 0x81f0e80
(II) Module ABI versions:
    X.Org ANSI C Emulation: 0.4
    X.Org Video Driver: 6.0
    X.Org XInput driver : 7.0
    X.Org Server Extension : 2.0
(++) using VT number 7

(--) PCI:*(0:1:0:0) 1002:94c1:1028:0d02 ATI Technologies Inc RV610 [Radeon HD 2400 XT] rev 0, Mem @ 0xd0000000/268435456, 0xfe9f0000/65536, I/O @ 0x0000dc00/256, BIOS @ 0x????????/131072
(II) Open ACPI successful (/var/run/acpid.socket)
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.0.0
    Module class: X.Org Server Extension
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
(II) Loading extension X-Resource
(II) LoadModule: "dbe"
(II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
(II) Module dbe: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.0.0
    Module class: X.Org Server Extension
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/modules/extensions/libglx.so
(II) Module glx: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.0.0
    ABI class: X.Org Server Extension, version 2.0
(==) AIGLX enabled
(II) Loading extension GLX
(II) LoadModule: "record"
(II) Loading /usr/lib/xorg/modules/extensions/librecord.so
(II) Module record: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.13.0
    Module class: X.Org Server Extension
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension RECORD
(II) LoadModule: "dri"
(II) Loading /usr/lib/xorg/modules/extensions/libdri.so
(II) Module dri: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.0.0
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension XFree86-DRI
(II) LoadModule: "dri2"
(II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
(II) Module dri2: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.1.0
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(==) Matched ati as autoconfigured driver 0
(==) Matched vesa as autoconfigured driver 1
(==) Matched fbdev as autoconfigured driver 2
(==) Assigned the driver to the xf86ConfigLayout
(II) LoadModule: "ati"
(II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so
(II) Module ati: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 6.13.0
    Module class: X.Org Video Driver
    ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "radeon"
(II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
(II) Module radeon: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 6.13.0
    Module class: X.Org Video Driver
    ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "vesa"
(II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
(II) Module vesa: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 2.3.0
    Module class: X.Org Video Driver
    ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "fbdev"
(II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
(II) Module fbdev: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 0.4.1
    ABI class: X.Org Video Driver, version 6.0
(II) RADEON: Driver for ATI Radeon chipsets:
    ATI Radeon Mobility X600 (M24) 3150 (PCIE), ATI FireMV 2400 (PCI),
 ...
    CEDAR
(II) VESA: driver for VESA chipsets: vesa
(II) FBDEV: driver for framebuffer: fbdev
(II) Primary Device is: PCI 01@00:00:0
(II) [KMS] drm report modesetting isn't supported.
(WW) Falling back to old probe method for vesa
(WW) Falling back to old probe method for fbdev
(II) Loading sub module "fbdevhw"
(II) LoadModule: "fbdevhw"
(II) Loading /usr/lib/xorg/modules/linux/libfbdevhw.so
(II) Module fbdevhw: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 0.0.2
    ABI class: X.Org Video Driver, version 6.0
(EE) open /dev/fb0: No such file or directory
(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
// MMIO, use MMIO directly communicate with graphic card
(II) RADEON(0): TOTO SAYS 00000000fe9f0000
(II) RADEON(0): MMIO registers at 0x00000000fe9f0000: size 64KB
(II) RADEON(0): PCI bus 1 card 0 func 0
(II) RADEON(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
(==) RADEON(0): Depth 24, (--) framebuffer bpp 32
(II) RADEON(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
(==) RADEON(0): Default visual is TrueColor
(II) Loading sub module "vgahw"
(II) LoadModule: "vgahw"
(II) Loading /usr/lib/xorg/modules/libvgahw.so
(II) Module vgahw: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 0.1.0
    ABI class: X.Org Video Driver, version 6.0
(II) RADEON(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(==) RADEON(0): RGB weight 888
(II) RADEON(0): Using 8 bits per RGB (8 bit DAC)
(--) RADEON(0): Chipset: "ATI Radeon HD 2400 XT" (ChipID = 0x94c1)
(--) RADEON(0): Linear framebuffer at 0x00000000d0000000
(II) RADEON(0): PCIE card detected
(II) Loading sub module "int10"
(II) LoadModule: "int10"
(II) Loading /usr/lib/xorg/modules/libint10.so
(II) Module int10: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.0.0
    ABI class: X.Org Video Driver, version 6.0
(II) RADEON(0): initializing int10
(II) RADEON(0): Primary V_BIOS segment is: 0xc000
(II) RADEON(0): ATOM BIOS detected
(II) RADEON(0): ATOM BIOS Rom:
    SubsystemVendorID: 0x1028 SubsystemID: 0x0d02
    IOBaseAddress: 0xdc00
    Filename: S3B27602.112
    BIOS Bootup Message:
113-B27602-112 RV610 GDDR2_32Mx16 64bit 256MB 650e/500m                     

(II) RADEON(0): Framebuffer space used by Firmware (kb): 16
(II) RADEON(0): Start of VRAM area used by Firmware: 0xfffc000
(II) RADEON(0): AtomBIOS requests 16kB of VRAM scratch space
(II) RADEON(0): AtomBIOS VRAM scratch base: 0xfffc000
(II) RADEON(0): Cannot get VRAM scratch space. Allocating in main memory instead
(II) RADEON(0): Default Engine Clock: 650000
(II) RADEON(0): Default Memory Clock: 500000
(II) RADEON(0): Maximum Pixel ClockPLL Frequency Output: 1200000
(II) RADEON(0): Minimum Pixel ClockPLL Frequency Output: 0
(II) RADEON(0): Maximum Pixel ClockPLL Frequency Input: 13500
(II) RADEON(0): Minimum Pixel ClockPLL Frequency Input: 1000
(II) RADEON(0): Maximum Pixel Clock: 400000
(II) RADEON(0): Reference Clock: 27000
drmOpenDevice: node name is /dev/dri/card0
[drm] failed to load kernel module "radeon"
(EE) RADEON(0): [dri] RADEONDRIGetVersion failed to open the DRM
[dri] Disabling DRI.
(II) RADEON(0): using shadow framebuffer
(II) Loading sub module "shadow"
(II) LoadModule: "shadow"
(II) Loading /usr/lib/xorg/modules/libshadow.so
(II) Module shadow: vendor="X.Org Foundation"
    compiled for 1.7.6, module version = 1.1.0
    ABI class: X.Org ANSI C Emulation, version 0.4
(II) RADEON(0): Detected total video RAM=262144K, accessible=262144K (PCI BAR=262144K)
(--) RADEON(0): Mapped VideoRAM: 262144 kByte (64 bit DDR SDRAM) // graphic card ram
(II) RADEON(0): Color tiling disabled
(II) Loading sub module "ddc"
(II) LoadModule: "ddc"
(II) Module "ddc" already built-in
(II) Loading sub module "i2c"
(II) LoadModule: "i2c"
(II) Module "i2c" already built-in
(II) RADEON(0): PLL parameters: rf=2700 rd=12 min=90000 max=120000; xclk=40000
(II) RADEON(0): Output DVI-1 has no monitor section
(II) RADEON(0): I2C bus "DVI-1" initialized.
(II) RADEON(0): Output DVI-0 has no monitor section
(II) RADEON(0): I2C bus "DVI-0" initialized.
(II) RADEON(0): Port0:
  XRANDR name: DVI-1
  Connector: DVI-I
  CRT2: INTERNAL_KLDSCP_DAC2
  DFP1: INTERNAL_KLDSCP_TMDS1
  DDC reg: 0x7e50
(II) RADEON(0): Port1:
  XRANDR name: DVI-0
  Connector: DVI-I
  CRT1: INTERNAL_KLDSCP_DAC1
  DFP2: INTERNAL_LVTM1
  DDC reg: 0x7e40
(II) RADEON(0): I2C device "DVI-1:ddc2" registered at address 0xA0.
Dac detection success
(II) RADEON(0): Output: DVI-1, Detected Monitor Type: 0
Unhandled monitor type 0
finished output detect: 0
(II) RADEON(0): I2C device "DVI-0:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DVI-0:DDC control interface" registered at address 0x6E.
(II) RADEON(0): EDID for output DVI-0
(II) RADEON(0): Manufacturer: DEL  Model: a028  Serial#: 810833736
(II) RADEON(0): Year: 2008  Week: 24
(II) RADEON(0): EDID Version: 1.3
(II) RADEON(0): Analog Display Input,  Input Voltage Level: 0.700/0.700 V
(II) RADEON(0): Sync:  Separate
(II) RADEON(0): Max Image Size [cm]: horiz.: 38  vert.: 30
(II) RADEON(0): Gamma: 2.20
(II) RADEON(0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display
(II) RADEON(0): Default color space is primary color space
(II) RADEON(0): First detailed timing is preferred mode
(II) RADEON(0): redX: 0.640 redY: 0.340   greenX: 0.279 greenY: 0.619
(II) RADEON(0): blueX: 0.140 blueY: 0.069   whiteX: 0.310 whiteY: 0.330
(II) RADEON(0): Supported established timings:
(II) RADEON(0): 720x400@70Hz
(II) RADEON(0): 640x480@60Hz
(II) RADEON(0): 640x480@75Hz
(II) RADEON(0): 800x600@60Hz
(II) RADEON(0): 800x600@75Hz
(II) RADEON(0): 1024x768@60Hz
(II) RADEON(0): 1024x768@75Hz
(II) RADEON(0): 1280x1024@75Hz
(II) RADEON(0): Manufacturer's mask: 0
(II) RADEON(0): Supported standard timings:
(II) RADEON(0): #0: hsize: 1152  vsize 864  refresh: 75  vid: 20337
(II) RADEON(0): #1: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
(II) RADEON(0): Supported detailed timing:
(II) RADEON(0): clock: 108.0 MHz   Image Size:  380 x 305 mm
(II) RADEON(0): h_active: 1280  h_sync: 1328  h_sync_end 1440 h_blank_end 1688 h_border: 0
(II) RADEON(0): v_active: 1024  v_sync: 1025  v_sync_end 1028 v_blanking: 1066 v_border: 0
(II) RADEON(0): Ranges: V min: 56 V max: 75 Hz, H min: 31 H max: 80 kHz, PixClock max 140 MHz
(II) RADEON(0): Serial No: D540H86C0TWH
(II) RADEON(0): Monitor name: DELL E198FP
(II) RADEON(0): EDID (in hex):
(II) RADEON(0):     00ffffffffffff0010ac28a048575430
(II) RADEON(0):     1812010368261e78eecaf6a357479e23
(II) RADEON(0):     114f54a54b00714f8180010101010101
(II) RADEON(0):     010101010101302a009851002a403070
(II) RADEON(0):     13007c311100001e000000fd00384b1f
(II) RADEON(0):     500e000a202020202020000000ff0044
(II) RADEON(0):     35343048383643305457480a000000fc
(II) RADEON(0):     0044454c4c204531393846500a200003
(II) RADEON(0): Output: DVI-0, Detected Monitor Type: 1
(II) RADEON(0): EDID data from the display on output: DVI-0 ----------------------


Regards,

yueqiang
-- 
程越强 Cheng Yueqiang
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