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authorIsaku Yamahata <yamahata@valinux.co.jp>2011-03-25 19:54:38 +0900
committerAurelien Jarno <aurelien@aurel32.net>2011-04-09 18:39:05 +0200
commita54d41a8b985cc7ff9d4bc52e6ca20a09216b394 (patch)
tree5ee739f336ffaff9ba0d008bef2c0b165528de3d /hw/acpi.h
parent5145b3d1cc4dc77d82086d99b0690a76e1073071 (diff)
acpi, acpi_piix, vt82c686: factor out PM_TMR logic
factor out PM_TMR logic. Later This will be used by ich9 acpi. Also fixes the same bug in vt82c686.c that was fixed by the following commits. > commit 055479feab63607b8042bb8ebb2e0523f17cbc4e > Author: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> > Date: Wed Jan 21 16:31:20 2009 +0000 > > Always return latest pmsts instead of the old one (Xiantao Zhang) > > It may lead to the issue when booting windows guests with acpi=1 > if return the old pmsts. > > Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> > Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Huacai Chen <zltjiangshi@gmail.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'hw/acpi.h')
-rw-r--r--hw/acpi.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/hw/acpi.h b/hw/acpi.h
index 5949958067..fc425012b3 100644
--- a/hw/acpi.h
+++ b/hw/acpi.h
@@ -74,5 +74,29 @@
#define ACPI_BITMASK_ARB_DISABLE 0x0001
/* PM_TMR */
+struct ACPIPMTimer;
+typedef struct ACPIPMTimer ACPIPMTimer;
+
+typedef void (*acpi_update_sci_fn)(ACPIPMTimer *tmr);
+
+struct ACPIPMTimer {
+ QEMUTimer *timer;
+ int64_t overflow_time;
+
+ acpi_update_sci_fn update_sci;
+};
+
+void acpi_pm_tmr_update(ACPIPMTimer *tmr, bool enable);
+void acpi_pm_tmr_calc_overflow_time(ACPIPMTimer *tmr);
+uint32_t acpi_pm_tmr_get(ACPIPMTimer *tmr);
+void acpi_pm_tmr_init(ACPIPMTimer *tmr, acpi_update_sci_fn update_sci);
+void acpi_pm_tmr_reset(ACPIPMTimer *tmr);
+
+#include "qemu-timer.h"
+static inline int64_t acpi_pm_tmr_get_clock(void)
+{
+ return muldiv64(qemu_get_clock_ns(vm_clock), PM_TIMER_FREQUENCY,
+ get_ticks_per_sec());
+}
#endif /* !QEMU_HW_ACPI_H */