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block: Add sanity check when setting retry parameters

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Add sanity check when setting retry parameters to avoid invalid retry
configuration.

Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
This commit is contained in:
Chen Qun 2021-03-18 19:45:11 +08:00
parent 3eee17c097
commit 27ab61041a
1 changed files with 118 additions and 0 deletions
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block-Add-sanity-check-when-setting-retry-parameters.patch Normal file
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@ -0,0 +1,118 @@
From 6642b2c6fcad2e1099c61b56f4fe78f3180d005e Mon Sep 17 00:00:00 2001
From: Jiahui Cen <cenjiahui@huawei.com>
Date: Thu, 18 Mar 2021 19:45:11 +0800
Subject: [PATCH] block: Add sanity check when setting retry parameters
Add sanity check when setting retry parameters to avoid invalid retry
configuration.
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
---
hw/core/qdev-properties.c | 45 ++++++++++++++++++++++++++++++++++++
include/hw/block/block.h | 7 +++---
include/hw/qdev-properties.h | 8 +++++++
3 files changed, 57 insertions(+), 3 deletions(-)
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 709f9e0f9d..2601091f8f 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -628,6 +628,51 @@ const PropertyInfo qdev_prop_blockdev_on_error = {
.set_default_value = set_default_value_enum,
};
+static void set_retry_time(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ int64_t value, *ptr = qdev_get_prop_ptr(dev, prop);
+ Error *local_err = NULL;
+
+ if (dev->realized) {
+ qdev_prop_set_after_realize(dev, name, errp);
+ return;
+ }
+
+ visit_type_int64(v, name, &value, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ /* value should not be negative */
+ if (value < 0) {
+ error_setg(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
+ dev->id ? : "", name, (int64_t)value, 0L, LONG_MAX);
+ return;
+ }
+
+ *ptr = value;
+}
+
+const PropertyInfo qdev_prop_blockdev_retry_interval = {
+ .name = "BlockdevRetryInterval",
+ .description = "Interval for retry error handling policy",
+ .get = get_int64,
+ .set = set_retry_time,
+ .set_default_value = set_default_value_int,
+};
+
+const PropertyInfo qdev_prop_blockdev_retry_timeout = {
+ .name = "BlockdevRetryTimeout",
+ .description = "Timeout for retry error handling policy",
+ .get = get_int64,
+ .set = set_retry_time,
+ .set_default_value = set_default_value_int,
+};
+
/* --- BIOS CHS translation */
QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int));
diff --git a/include/hw/block/block.h b/include/hw/block/block.h
index d12603aabd..c5276fec0d 100644
--- a/include/hw/block/block.h
+++ b/include/hw/block/block.h
@@ -74,9 +74,10 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
BLOCKDEV_ON_ERROR_AUTO), \
DEFINE_PROP_BLOCKDEV_ON_ERROR("werror", _state, _conf.werror, \
BLOCKDEV_ON_ERROR_AUTO), \
- DEFINE_PROP_INT64("retry_interval", _state, _conf.retry_interval, \
- -1), \
- DEFINE_PROP_INT64("retry_timeout", _state, _conf.retry_timeout, -1)
+ DEFINE_PROP_BLOCKDEV_RETRY_INTERVAL("retry_interval", _state, \
+ _conf.retry_interval, 1000), \
+ DEFINE_PROP_BLOCKDEV_RETRY_TIMEOUT("retry_timeout", _state, \
+ _conf.retry_timeout, 0)
/* Backend access helpers */
diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h
index a22a532eb8..d7742be3bc 100644
--- a/include/hw/qdev-properties.h
+++ b/include/hw/qdev-properties.h
@@ -26,6 +26,8 @@ extern const PropertyInfo qdev_prop_on_off_auto;
extern const PropertyInfo qdev_prop_compress_method;
extern const PropertyInfo qdev_prop_losttickpolicy;
extern const PropertyInfo qdev_prop_blockdev_on_error;
+extern const PropertyInfo qdev_prop_blockdev_retry_interval;
+extern const PropertyInfo qdev_prop_blockdev_retry_timeout;
extern const PropertyInfo qdev_prop_bios_chs_trans;
extern const PropertyInfo qdev_prop_fdc_drive_type;
extern const PropertyInfo qdev_prop_drive;
@@ -215,6 +217,12 @@ extern const PropertyInfo qdev_prop_pcie_link_width;
#define DEFINE_PROP_BLOCKDEV_ON_ERROR(_n, _s, _f, _d) \
DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_on_error, \
BlockdevOnError)
+#define DEFINE_PROP_BLOCKDEV_RETRY_INTERVAL(_n, _s, _f, _d) \
+ DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_retry_interval, \
+ int64_t)
+#define DEFINE_PROP_BLOCKDEV_RETRY_TIMEOUT(_n, _s, _f, _d) \
+ DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_retry_timeout, \
+ int64_t)
#define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
--
2.27.0