remove unused config symbol from FEC driver

[linux-2.6-omap-h63xx.git] / drivers / lguest / hypercalls.c

diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index 7a5299f9679ddcbe083cb7b16657ecc22cf1e2aa..db6caace3b9c22a7ce16a85580de212d318c4cd2 100644 (file)
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -64,14 +64,6 @@ static void do_hcall(struct lguest *lg, struct lguest_regs *regs)
                else
                        guest_pagetable_flush_user(lg);
                break;
-       case LHCALL_GET_WALLCLOCK: {
-               /* The Guest wants to know the real time in seconds since 1970,
-                * in good Unix tradition. */
-               struct timespec ts;
-               ktime_get_real_ts(&ts);
-               regs->eax = ts.tv_sec;
-               break;
-       }
        case LHCALL_BIND_DMA:
                /* BIND_DMA really wants four arguments, but it's the only call
                 * which does.  So the Guest packs the number of buffers and
@@ -235,6 +227,9 @@ static void initialize(struct lguest *lg)
            || put_user(lg->guestid, &lg->lguest_data->guestid))
                kill_guest(lg, "bad guest page %p", lg->lguest_data);
 
+       /* We write the current time into the Guest's data page once now. */
+       write_timestamp(lg);
+
        /* This is the one case where the above accesses might have been the
         * first write to a Guest page.  This may have caused a copy-on-write
         * fault, but the Guest might be referring to the old (read-only)
@@ -293,3 +288,13 @@ void do_hypercalls(struct lguest *lg)
                clear_hcall(lg);
        }
 }
+
+/* This routine supplies the Guest with time: it's used for wallclock time at
+ * initial boot and as a rough time source if the TSC isn't available. */
+void write_timestamp(struct lguest *lg)
+{
+       struct timespec now;
+       ktime_get_real_ts(&now);
+       if (put_user(now, &lg->lguest_data->time))
+               kill_guest(lg, "Writing timestamp");
+}