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[PATCH v2 4/7] hw/char/exynos4210_uart: Implement post_load function
From: |
Guenter Roeck |
Subject: |
[PATCH v2 4/7] hw/char/exynos4210_uart: Implement post_load function |
Date: |
Sat, 18 Jan 2020 08:42:26 -0800 |
After restoring a VM, serial parameters need to be updated to reflect
restored register values. Implement a post_load function to handle this
situation.
Signed-off-by: Guenter Roeck <address@hidden>
---
v4: Additional patch to implement post-load functionality
in exynos uart driver. Required for next patch in series.
hw/char/exynos4210_uart.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c
index fb7a3ebd09..5d48701b6d 100644
--- a/hw/char/exynos4210_uart.c
+++ b/hw/char/exynos4210_uart.c
@@ -522,10 +522,20 @@ static void exynos4210_uart_reset(DeviceState *dev)
trace_exynos_uart_rxsize(s->channel, s->rx.size);
}
+static int exynos4210_uart_post_load(void *opaque, int version_id)
+{
+ Exynos4210UartState *s = (Exynos4210UartState *)opaque;
+
+ exynos4210_uart_update_parameters(s);
+
+ return 0;
+}
+
static const VMStateDescription vmstate_exynos4210_uart_fifo = {
.name = "exynos4210.uart.fifo",
.version_id = 1,
.minimum_version_id = 1,
+ .post_load = exynos4210_uart_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT32(sp, Exynos4210UartFIFO),
VMSTATE_UINT32(rp, Exynos4210UartFIFO),
--
2.17.1
[PATCH v2 3/7] hw/char/exynos4210_uart: Convert to support tracing, Guenter Roeck, 2020/01/18
[PATCH v2 4/7] hw/char/exynos4210_uart: Implement post_load function,
Guenter Roeck <=
[PATCH v2 5/7] hw/char/exynos4210_uart: Implement Rx FIFO level triggers and timeouts, Guenter Roeck, 2020/01/18
[PATCH v2 7/7] hw/arm/exynos4210: Connect serial port DMA busy signals with pl330, Guenter Roeck, 2020/01/18
[PATCH v2 6/7] hw/char/exynos4210_uart: Add receive DMA support, Guenter Roeck, 2020/01/18