On Mon, 18 Jan 2016, Andrew Cooper wrote: > On 18/01/16 12:38, Stefano Stabellini wrote: > > On Fri, 15 Jan 2016, Shannon Zhao wrote: > >> From: Shannon Zhao <shannon.zhao@xxxxxxxxxx> > >> > >> Add a new delivery type: > >> val[63:56] == 3: val[15:8] is flag: val[7:0] is a PPI. > >> To the flag, bit 0 stands the interrupt mode is edge(1) or level(0) and > >> bit 1 stands the interrupt polarity is active low(1) or high(0). > >> > >> Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx> > >> --- > >> include/xen/interface/hvm/params.h | 5 +++++ > >> 1 file changed, 5 insertions(+) > >> > >> diff --git a/include/xen/interface/hvm/params.h b/include/xen/interface/hvm/params.h > >> index a6c7991..550688a 100644 > >> --- a/include/xen/interface/hvm/params.h > >> +++ b/include/xen/interface/hvm/params.h > >> @@ -34,6 +34,11 @@ > >> * Domain = val[47:32], Bus = val[31:16], > >> * DevFn = val[15: 8], IntX = val[ 1: 0] > >> * val[63:56] == 2: val[7:0] is a vector number. > >> + * val[63:56] == 3: val[15:8] is flag of event-channel interrupt: > >> + * bit 0: interrupt is edge(1) or level(0) triggered > >> + * bit 1: interrupt is active low(1) or high(0) > >> + * val[7:0] is PPI number used by event-channel. > >> + * This is only used by ARM/ARM64. > >> * If val == 0 then CPU0 event-channel notifications are not delivered. > >> */ > >> #define HVM_PARAM_CALLBACK_IRQ 0 > > Andrew, I think that this patch is correct. Looking back at your > > previous comment (http://marc.info/?l=devicetree&m=144804014214262&w=2), > > is it possible that you were confused by enum callback_via_type, which > > is internal to Xen and offset'ed by 1 compared to the described values > > in xen/include/public/hvm/params.h? > > > > If not, and indeed somebody introduced one more field but failed to > > document it, then I suggest she sends a patch to fix the issue as soon > > as possible. > > I was indeed confused - the ABI is utterly mad. All right. In that case, Shannon, you can add my Reviewed-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> > However, this change does need rebasing over c/s ca5c54b, which was the > result of the original discussion. c/s ca5c54b is for Xen, while this is a Linux patch (Linux has its own set of Xen headers). -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
