[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PULL 21/29] xen/pt: Sync up the dev.config and data values.
On Tue, Sep 15, 2015 at 02:28:51PM +0100, Stefano Stabellini wrote: > On Tue, 15 Sep 2015, Konrad Rzeszutek Wilk wrote: > > On Tue, Sep 15, 2015 at 11:07:02AM +0100, Stefano Stabellini wrote: > > > CC Konrad > > > > > > On Mon, 14 Sep 2015, Paolo Bonzini wrote: > > > > On 10/09/2015 19:15, Stefano Stabellini wrote: > > > > > + > > > > > + switch (reg->size) { > > > > > + case 1: rc = xen_host_pci_get_byte(&s->real_device, offset, > > > > > (uint8_t *)&val); > > > > > > > > A bit ugly, and it relies on the host being little endian. > > > > > > > > > + break; > > > > > + case 2: rc = xen_host_pci_get_word(&s->real_device, offset, > > > > > (uint16_t *)&val); > > > > > > > > Same here. > > > > > > cpu_to_le32? > > > > > > But in practice, Xen being little endian only, I doubt that > > > xen_pt_config_init.c > > > would actually work on be. > > > > > > > > > > > + break; > > > > > + case 4: rc = xen_host_pci_get_long(&s->real_device, offset, > > > > > &val); > > > > > + break; > > > > > + default: assert(1); > > > > > > > > This should be assert(0) or, better, abort(). > > > > OK. Stefano, do you want me to: > > > > 1). Rebase the patches on top of your tag? > > Patches are already upstream, so no worries about rebasing. > > > > 2). Send an follow up patch to change this to abort()? (and wherever else > > I used > > assert(..)? > > Yes, that would be good. > > > > 3). Wait till Paolo is done going through the patchset and then revisit 1) > > or 2)? > > I don't know if Paolo has any more comments. > > Regarding his previous comment on little-endian, as I wrote I am not > sure if sprinkling around some cpu_to_le32 would actually make > hw/xen/xen_pt_config_init.c much better. I'll leave that to you. I got some other outstanding things I need to get done so will be as most lazy as possible in regards to this and just send you a patch :-) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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