Displaying 3 results from an estimated 3 matches for "iopl_mask".
2007 Apr 18
2
[PATCH 2/5] Paravirt cpu batching.patch
.../i386/kernel/process.c Tue Dec 12 13:50:50 2006 -0800
+++ b/arch/i386/kernel/process.c Tue Dec 12 13:50:53 2006 -0800
@@ -665,6 +665,37 @@ struct task_struct fastcall * __switch_t
load_TLS(next, cpu);
/*
+ * Restore IOPL if needed.
+ */
+ if (unlikely(prev->iopl != next->iopl))
+ set_iopl_mask(next->iopl);
+
+ /*
+ * Now maybe handle debug registers and/or IO bitmaps
+ */
+ if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)
+ || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)))
+ __switch_to_xtra(next_p, tss);
+
+ /*
+ * Leave lazy mode, flushing any hypercall...
2007 Apr 18
2
[PATCH 2/5] Paravirt cpu batching.patch
.../i386/kernel/process.c Tue Dec 12 13:50:50 2006 -0800
+++ b/arch/i386/kernel/process.c Tue Dec 12 13:50:53 2006 -0800
@@ -665,6 +665,37 @@ struct task_struct fastcall * __switch_t
load_TLS(next, cpu);
/*
+ * Restore IOPL if needed.
+ */
+ if (unlikely(prev->iopl != next->iopl))
+ set_iopl_mask(next->iopl);
+
+ /*
+ * Now maybe handle debug registers and/or IO bitmaps
+ */
+ if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)
+ || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)))
+ __switch_to_xtra(next_p, tss);
+
+ /*
+ * Leave lazy mode, flushing any hypercall...
2010 Aug 12
59
[PATCH 00/15] RFC xen device model support
Hi all,
this is the long awaited patch series to add xen device model support in
qemu; the main author is Anthony Perard.
Developing this series we tried to come up with the cleanest possible
solution from the qemu point of view, limiting the amount of changes to
common code as much as possible. The end result still requires a couple
of hooks in piix_pci but overall the impact should be very