On Sat, 2006-04-01 at 11:10 +0100, Keir Fraser wrote:
> Taken, thanks. Can you also look at supporting HYPERVISOR_sched_op()
> before 3.0.2, in addition to the old HYPERVISOR_sched_op_compat()?
Keir,
Here's a patch that enables HYPERVISOR_sched_op() and
HYPERVISOR_sched_opt_compat() for ia64. We currently have no users of
this call, but there's no harm in enabling it (tested by adding a
HYPERVISOR_yield() call to default_idle()). I did notice a problem with
the compat interface though, nothing defines __XEN_INTERFACE_VERSION__
for the build of xen. We're therefore stuck on interface version
0x00000000 where __HYPERVISOR_sched_op_compat == __HYPERVISOR_sched_op.
Thanks,
Alex
Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
---
diff -r 60071beccf18 xen/arch/ia64/xen/hypercall.c
--- a/xen/arch/ia64/xen/hypercall.c Sat Apr 1 14:59:12 2006 +0100
+++ b/xen/arch/ia64/xen/hypercall.c Sat Apr 1 14:35:19 2006 -0700
@@ -38,7 +38,7 @@ hypercall_t ia64_hypercall_table[] =
(hypercall_t)do_ni_hypercall, /* do_stack_switch */
(hypercall_t)do_ni_hypercall, /* do_set_callbacks */
(hypercall_t)do_ni_hypercall, /* do_fpu_taskswitch */
/* 5 */
- (hypercall_t)do_ni_hypercall, /* do_sched_op_compat */
+ (hypercall_t)do_sched_op_compat,
(hypercall_t)do_dom0_op,
(hypercall_t)do_ni_hypercall, /* do_set_debugreg */
(hypercall_t)do_ni_hypercall, /* do_get_debugreg */
@@ -61,7 +61,7 @@ hypercall_t ia64_hypercall_table[] =
(hypercall_t)do_ni_hypercall, /* do_mmuext_op */
(hypercall_t)do_ni_hypercall, /* do_acm_op */
(hypercall_t)do_ni_hypercall, /* do_nmi_op */
- (hypercall_t)do_ni_hypercall, /* */
+ (hypercall_t)do_sched_op,
(hypercall_t)do_ni_hypercall, /* */
/* 30 */
(hypercall_t)do_ni_hypercall /* */
};
@@ -70,6 +70,11 @@ xen_hypercall (struct pt_regs *regs)
xen_hypercall (struct pt_regs *regs)
{
switch (regs->r2) {
+ case __HYPERVISOR_sched_op_compat:
+ regs->r8 = do_sched_op_compat((int) regs->r14,
+ (unsigned long) regs->r15);
+ break;
+
case __HYPERVISOR_dom0_op:
regs->r8 = do_dom0_op(guest_handle_from_ptr(regs->r14,
dom0_op_t));
@@ -116,6 +121,13 @@ xen_hypercall (struct pt_regs *regs)
case __HYPERVISOR_multicall:
regs->r8 = do_multicall(guest_handle_from_ptr(regs->r14,
multicall_entry_t), (unsigned int) regs->r15);
break;
+
+#if __XEN_INTERFACE_VERSION__ >= 0x00030101
+ case __HYPERVISOR_sched_op:
+ regs->r8 = do_sched_op((int) regs->r14,
+ guest_handle_from_ptr(regs->r15, void));
+ break;
+#endif
default:
printf("unknown xen hypercall %lx\n", regs->r2);
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