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Re: [Qemu-devel] Question about hcd-ohci and address_space_translate

From: Paolo Bonzini
Subject: Re: [Qemu-devel] Question about hcd-ohci and address_space_translate
Date: Fri, 30 May 2014 12:24:59 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 
Il 30/05/2014 00:33, BALATON Zoltan ha scritto:


usb-ohci: pci-ohci: USB Operational
Unassigned mem read 0000000007c9ae00
Unassigned mem read 0000000007c9ae04
[...]
Unassigned mem read 0000000007c9ae84
usb-ohci: HCCA read error at 7c9ae00
ohci_die: DMA error

The read happens through ohci_read_hcca which eventually calls
phys_page_find that returns &sections[PHYS_SECTION_UNASSIGNED] here:


Are you setting the bus master enable bit in the command register?

Paolo
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