Patchwork [v4,2/5] hpet 'driftfix': add driftfix property to HPETState and DeviceInfo

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Submitter Ulrich Obergfell
Date May 9, 2011, 7:03 a.m.
Message ID <1304924601-3848-3-git-send-email-uobergfe@redhat.com>
Download mbox | patch
Permalink /patch/94734/
State New
Headers show

Comments

Ulrich Obergfell - May 9, 2011, 7:03 a.m.
driftfix is a 'bit type' property. Compensation of delayed callbacks
and coalesced interrupts can be enabled with the command line option

    -global hpet.driftfix=on

driftfix is 'off' (disabled) by default.

Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
---
 hw/hpet.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/hpet.c b/hw/hpet.c
index 6ce07bc..7513065 100644
--- a/hw/hpet.c
+++ b/hw/hpet.c
@@ -72,6 +72,8 @@  typedef struct HPETState {
     uint64_t isr;               /* interrupt status reg */
     uint64_t hpet_counter;      /* main counter */
     uint8_t  hpet_id;           /* instance id */
+
+    uint32_t driftfix;
 } HPETState;
 
 static uint32_t hpet_in_legacy_mode(HPETState *s)
@@ -738,6 +740,7 @@  static SysBusDeviceInfo hpet_device_info = {
     .qdev.props = (Property[]) {
         DEFINE_PROP_UINT8("timers", HPETState, num_timers, HPET_MIN_TIMERS),
         DEFINE_PROP_BIT("msi", HPETState, flags, HPET_MSI_SUPPORT, false),
+        DEFINE_PROP_BIT("driftfix", HPETState, driftfix, 0, false),
         DEFINE_PROP_END_OF_LIST(),
     },
 };