[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH V1 17/29] xen/arm: Mark each device used by Xen as disabled in DOM0 FDT
On Wed, 2013-08-28 at 15:47 +0100, Julien Grall wrote: > When a device has a property status with disabled inside, Linux will not use > the device. Do we not filter such devices out already? Or did the previous patch remove that functionality? In which case is there a bisection hazard here? Why is it preferred to leave the device with disabled in it instead of removing it? (Can this go in the changelog please) I think I've asked before, but is the handling of status = disabled generic and therefore reliable? > > Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx> > --- > xen/arch/arm/domain_build.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c > index 76decf4..d56bc70a 100644 > --- a/xen/arch/arm/domain_build.c > +++ b/xen/arch/arm/domain_build.c > @@ -208,6 +208,14 @@ static int write_properties(struct domain *d, struct > kernel_info *kinfo, > return res; > } > > + /* Disable all devices used by Xen */ > + if ( dt_device_used_by(np) == DOMID_XEN ) > + { > + res = fdt_property(kinfo->fdt, "status", "disabled", 8 + 1); > + if ( res ) > + return res; > + } > + > /* > * XXX should populate /chosen/linux,initrd-{start,end} here if we > * have module[2] _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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