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[Qemu-devel] [PATCH] Save/load PC speaker internal state
From: |
Pavel Dovgaluk |
Subject: |
[Qemu-devel] [PATCH] Save/load PC speaker internal state |
Date: |
Mon, 27 Aug 2012 16:21:20 +0400 |
Save PC speaker state to remove differences between system
states after saving the snapshot and after loading it again.
This patch is needed for deterministic replay of the execution.
Signed-off-by: Pavel Dovgalyuk<address@hidden>
---
hw/pcspk.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/hw/pcspk.c b/hw/pcspk.c
index e430324..3fb3dd1 100644
--- a/hw/pcspk.c
+++ b/hw/pcspk.c
@@ -159,10 +159,28 @@ static const MemoryRegionOps pcspk_io_ops = {
},
};
+static const VMStateDescription vmstate_spk = {
+ .name = "pcspk",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8_ARRAY(sample_buf, PCSpkState, PCSPK_BUF_LEN),
+ VMSTATE_UINT32(pit_count, PCSpkState),
+ VMSTATE_UINT32(samples, PCSpkState),
+ VMSTATE_UINT32(play_pos, PCSpkState),
+ VMSTATE_INT32(data_on, PCSpkState),
+ VMSTATE_INT32(dummy_refresh_clock, PCSpkState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static int pcspk_initfn(ISADevice *dev)
{
PCSpkState *s = DO_UPCAST(PCSpkState, dev, dev);
+ vmstate_register(NULL, 0, &vmstate_spk, s);
+
memory_region_init_io(&s->ioport, &pcspk_io_ops, s, "elcr", 1);
isa_register_ioport(dev, &s->ioport, s->iobase);
- [Qemu-devel] [PATCH] Save/load PC speaker internal state,
Pavel Dovgaluk <=