Ian Pratt
2005-Sep-05 18:21 UTC
RE: [Xen-devel] SATA detect fails on ICH7 chipset / DellPoweredgeSC430
> ide controller appears with memory range febffc00-febfffff > pci bus memory range for above is f4000000 - febfffff > tg3 eth is at exact same address as linux video controller > ec.. ef.. is at exact same address as linuxInteresting. So, Windows trusts the BIOS but Linux feels the need to go in there and monkey around.> I noted that under linux we get the boot message: > Allocating PCI resources starting at 40000000 (gap: > 40000000:b0000000) and ide controller appears at 40000000... > but not ethernet or video, they stay at the same old > addresses.OK, this is a definite bug in Xen that we can fix -- this is the first time we''ve come across a system where Linux tries remapping things, and it should be done with machine addresses, not psuedo physical addresses. Quite why Linux decides to mess with this device is a mystery... Ian _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Keir Fraser
2005-Sep-05 19:59 UTC
Re: [Xen-devel] SATA detect fails on ICH7 chipset / DellPoweredgeSC430
On 5 Sep 2005, at 19:21, Ian Pratt wrote:>> I noted that under linux we get the boot message: >> Allocating PCI resources starting at 40000000 (gap: >> 40000000:b0000000) and ide controller appears at 40000000... >> but not ethernet or video, they stay at the same old >> addresses. > > OK, this is a definite bug in Xen that we can fix -- this is the first > time we''ve come across a system where Linux tries remapping things, and > it should be done with machine addresses, not psuedo physical > addresses. > Quite why Linux decides to mess with this device is a mystery...Should now be fixed. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Chris Bainbridge
2005-Sep-07 18:45 UTC
Re: [Xen-devel] SATA detect fails on ICH7 chipset / DellPoweredgeSC430
On 05/09/05, Keir Fraser <Keir.Fraser@cl.cam.ac.uk> wrote:> > On 5 Sep 2005, at 19:21, Ian Pratt wrote: > > >> I noted that under linux we get the boot message: > >> Allocating PCI resources starting at 40000000 (gap: > >> 40000000:b0000000) and ide controller appears at 40000000... > >> but not ethernet or video, they stay at the same old > >> addresses. > > > > OK, this is a definite bug in Xen that we can fix -- this is the first > > time we''ve come across a system where Linux tries remapping things, and > > it should be done with machine addresses, not psuedo physical > > addresses. > > Quite why Linux decides to mess with this device is a mystery... > > Should now be fixed.Looks good so far. Thanks! _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel