On Tue, 30 Apr 2024 at 15:00, Peter Maydell wrote:
>
> FEAT_WFxT introduces new instructions WFIT and WFET, which are like
> the existing WFI and WFE but allow the guest to pass a timeout value
> in a register. The instructions will wait for an interrupt/event as
> usual, but will also stop waiti
On Tue, 30 Apr 2024 at 18:31, Richard Henderson
wrote:
>
> On 4/30/24 07:00, Peter Maydell wrote:
> > +if (uadd64_overflow(timeout, offset, &nexttick)) {
> > +nexttick = UINT64_MAX;
> > +}
> > +if (nexttick > INT64_MAX / gt_cntfrq_period_ns(cpu)) {
> > +/*
> > +
On 4/30/24 07:00, Peter Maydell wrote:
+if (uadd64_overflow(timeout, offset, &nexttick)) {
+nexttick = UINT64_MAX;
+}
+if (nexttick > INT64_MAX / gt_cntfrq_period_ns(cpu)) {
+/*
+ * If the timeout is too long for the signed 64-bit range
+ * of a QEMUTim
FEAT_WFxT introduces new instructions WFIT and WFET, which are like
the existing WFI and WFE but allow the guest to pass a timeout value
in a register. The instructions will wait for an interrupt/event as
usual, but will also stop waiting when the value of CNTVCT_EL0 is
greater than or equal to th
