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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] ehci dbgp troubles
Hi Jan, I'm hoping the troubles that I'm having are simply operator error, and you can help me sort the problems I'm having testing the EHCI debug port stuff. I finally got a hold of a USB debugger cable from here: http://www.semiconductorstore.com/pages/asp/supplier.asp?pl=0121 as suggested from: http://www.coreboot.org/EHCI_Debug_Port#Devices.2FDongles My intent was to debug some issues on a few Ultrabooks that have been having some S3 related issues. The usb debugger cable was a prerequisite to this effort, since Ultrabooks do not have a serial port. However, I have been struggling to get Xen to see the device as a debug console. My relevant xen command line args are: dbgp=ehci console=dbgp I have enabled the #define DBGP_DEBUG at the top of ehci-dbgp.c, and get the following output: (XEN) Found EHCI debug port on 00:1a.0 (XEN) bar: 10 offset: 0a0 (XEN) bar_val: e063a000 (XEN) ehci_bar: ffff82c3ffffc000 (XEN) dbgp: EHCI BIOS state 00000001 (XEN) debug_port: 2 (XEN) n_ports: 2 (XEN) dbgp: (XEN) debug control: 00000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) portstatus1: 00003000 (XEN) portstatus2: 00003000 (XEN) dbgp: ehci reset done (XEN) debug control: 00000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 00000004 (XEN) EHCI portsc : 00001000 (XEN) dbgp: Trying to force debug port online (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000100c (XEN) EHCI portsc : 00041005 (XEN) dbgp: ehci reset done (XEN) debug control: 00000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 00000004 (XEN) EHCI portsc : 00001000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) no device found in debug port (XEN) debug_port: 2 (XEN) n_ports: 2 (XEN) dbgp: (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) portstatus1: 00001803 (XEN) portstatus2: 00001000 (XEN) debug_port: 2 (XEN) n_ports: 2 (XEN) dbgp: (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) portstatus1: 00001803 (XEN) portstatus2: 00001000 (XEN) dbgp: ehci skip - already configured (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) dbgp: Trying to force debug port online (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000100c (XEN) EHCI portsc : 00041005 (XEN) dbgp: ehci reset done (XEN) debug control: 00000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 00000004 (XEN) EHCI portsc : 00001000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) no device found in debug port (XEN) debug_port: 2 (XEN) n_ports: 2 (XEN) dbgp: (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) portstatus1: 00001803 (XEN) portstatus2: 00001000 (XEN) debug_port: 2 (XEN) n_ports: 2 (XEN) dbgp: (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) portstatus1: 00001803 (XEN) portstatus2: 00001000 (XEN) dbgp: ehci skip - already configured (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) dbgp: Trying to force debug port online (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000100c (XEN) EHCI portsc : 00041005 (XEN) dbgp: ehci reset done (XEN) debug control: 00000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080000 (XEN) EHCI conf flg: 00000000 (XEN) EHCI status : 00001000 (XEN) EHCI portsc : 00003000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 00000004 (XEN) EHCI portsc : 00001000 (XEN) dbgp: EHCI startup (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) EHCI started (XEN) dbgp: reset port (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) no device found in debug port (XEN) debug_port: 2 (XEN) n_ports: 2 (XEN) dbgp: (XEN) debug control: 40000000 (XEN) EHCI cmd : 00080001 (XEN) EHCI conf flg: 00000001 (XEN) EHCI status : 0000000c (XEN) EHCI portsc : 00001000 (XEN) portstatus1: 00001803 (XEN) portstatus2: 00001000 (XEN) ehci_dbgp_setup failed As you can see, it never seems to find the device. I have tried all 3 available physical ports on this machine. lspci output is: 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Toshiba America Info Systems Device 0004 Flags: bus master, fast devsel, latency 0, IRQ 74 Memory at e0000000 (64-bit, non-prefetchable) [size=4M] Memory at d0000000 (64-bit, prefetchable) [size=256M] I/O ports at 2000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel driver in use: i915 Kernel modules: i915 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI]) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, medium devsel, latency 0, IRQ 71 Memory at e0620000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Kernel driver in use: xhci_hcd Kernel modules: xhci-hcd 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at e0634000 (64-bit, non-prefetchable) [size=16] Capabilities: [50] Power Management version 3 Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+ 00:16.3 Serial controller: Intel Corporation Panther Point KT Controller (rev 04) (prog-if 02 [16550]) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 19 I/O ports at 20b0 [size=8] Memory at e063c000 (32-bit, non-prefetchable) [size=4K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+ Kernel driver in use: serial 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) Subsystem: Toshiba America Info Systems Device 0002 Flags: bus master, fast devsel, latency 0, IRQ 72 Memory at e0600000 (32-bit, non-prefetchable) [size=128K] Memory at e063b000 (32-bit, non-prefetchable) [size=4K] I/O ports at 2080 [size=32] Capabilities: [c8] Power Management version 2 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [e0] PCI Advanced Features Kernel driver in use: e1000e Kernel modules: e1000e 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI]) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at e063a000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci-pci Kernel modules: ehci-pci 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, fast devsel, latency 0, IRQ 78 Memory at e0630000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel Memory behind bridge: e0400000-e04fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Toshiba America Info Systems Device 0001 Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI]) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, medium devsel, latency 0, IRQ 23 Memory at e0639000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci-pci Kernel modules: ehci-pci 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0]) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 73 I/O ports at 20a8 [size=8] I/O ports at 20bc [size=4] I/O ports at 20a0 [size=8] I/O ports at 20b8 [size=4] I/O ports at 2060 [size=32] Memory at e0638000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [70] Power Management version 3 Capabilities: [a8] SATA HBA v1.0 Capabilities: [b0] PCI Advanced Features Kernel driver in use: ahci Kernel modules: ahci 01:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 04) (prog-if 01) Subsystem: Toshiba America Info Systems Device 0001 Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at e0500000 (32-bit, non-prefetchable) [size=256] Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Power Management version 3 Capabilities: [80] Express Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [800] Advanced Error Reporting 02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24) Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN Flags: bus master, fast devsel, latency 0, IRQ 77 Memory at e0400000 (64-bit, non-prefetchable) [size=8K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [e0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number c4-85-08-ff-ff-09-07-7c Kernel driver in use: iwlwifi Kernel modules: iwlwifi Do you have any suggestions? Thanks for any pointers. Ben _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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