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

[Max Krasnyansky]

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