Re: [Qemu-devel] Preliminary patch to implement ehci

[Mark Burkley]

On Sat, 01 Nov 2008 13:50:00 -0700, you wrote:

>I just tried EHCI patch on top of latest KVM/QEMU.
>XP just hangs at boot.
>
>Here is the debug output from EHCI.
>
>000.000 ehci init : registering USB ports with no device attached
>000.000 Alloc new timer for 0x1f26fa0
>000.000 ehci init : registering MMIO size 4096
>000.000 *** ehci init : under development 16-OCT-08 ***
>
>251.048 ehci_map: region 0, addr F0000000, size 4096, s->mem 00000068
>395.068 ehci_map: region 0, addr F0000000, size 4096, s->mem 00000068
>300.331 ehci_map: region 0, addr F0000000, size 4096, s->mem 00000068
>002.163 mem_readl : addr=0x00000000, val=0x01000020
>000.117 mem_readb : addr=0x00000009, val=68
>000.178 mem_readl : addr=0x00000020, val=0x00080000
>000.020 mem_writel : USBCMD resetting ...
>000.010 mem_writel : USBCMD reset done, clear reset request bit
>000.005 mem_writel : addr=0x00000020, val=0x00080000
>000.015 mem_readl : addr=0x00000020, val=0x00080000
>000.016 mem_readl : addr=0x00000004, val=0x00000004
>000.017 mem_writel : addr=0x00000038, val=0x00000000
>000.025 mem_writel : addr=0x00000034, val=0x00000000
>000.111 mem_writel : addr=0x00000034, val=0x0193B000
>000.017 mem_writel : addr=0x00000038, val=0x0193C002
>000.074 mem_writel : addr=0x00000060, val=0x00000001
>000.016 mem_readl : addr=0x00000020, val=0x00080000
>000.017 mem_writel : addr=0x00000020, val=0x00010000
>000.017 mem_readl : addr=0x00000020, val=0x00010000
>000.016 mem_writel : USBCMD run, clear halt
>000.011 mem_writel : addr=0x00000020, val=0x00010001
>504.026 mem_readl : addr=0x00000020, val=0x00010001
>000.084 mem_readl : addr=0x00000028, val=0x0000003B
>510.650 mem_readl : addr=0x00000020, val=0x00010001
>000.077 mem_readl : addr=0x00000028, val=0x0000003B
>510.544 mem_readl : addr=0x00000020, val=0x00010001
>000.067 mem_readl : addr=0x00000028, val=0x0000003B
>324.302 WARNING - EHCI skipped 10 frames
>960.583 WARNING - EHCI skipped 4 frames
>019.186 WARNING - EHCI skipped 10 frames
>819.797 WARNING - EHCI skipped 3 frames
>023.364 WARNING - EHCI skipped 1 frames

Sorry for delayed reply.  I tried but I can't reproduce this.  All the
above output looks normal.  But it seems XP just stops reading the
device for some reason.  Is your PCI configuration different to me or
something like that?

Mark