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bootdevice: Add interface to gather LCHS 

Add an interface to provide direct logical CHS values for boot devices.
We will use this interface in the next commits.

Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
Signed-off-by: Sam Eiderman <sameid@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
master
Sam Eiderman 2019-10-16 19:41:40 +03:00 committed by John Snow
parent 64c5bb83df
commit f7209ea1be
2 changed files with 58 additions and 0 deletions
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55
bootdevice.c
View File

@ -343,3 +343,58 @@ void device_add_bootindex_property(Object *obj, int32_t *bootindex,
/* initialize devices' bootindex property to -1 */
object_property_set_int(obj, -1, name, NULL);
}
typedef struct FWLCHSEntry FWLCHSEntry;
struct FWLCHSEntry {
QTAILQ_ENTRY(FWLCHSEntry) link;
DeviceState *dev;
char *suffix;
uint32_t lcyls;
uint32_t lheads;
uint32_t lsecs;
};
static QTAILQ_HEAD(, FWLCHSEntry) fw_lchs =
QTAILQ_HEAD_INITIALIZER(fw_lchs);
void add_boot_device_lchs(DeviceState *dev, const char *suffix,
uint32_t lcyls, uint32_t lheads, uint32_t lsecs)
{
FWLCHSEntry *node;
if (!lcyls && !lheads && !lsecs) {
return;
}
assert(dev != NULL || suffix != NULL);
node = g_malloc0(sizeof(FWLCHSEntry));
node->suffix = g_strdup(suffix);
node->dev = dev;
node->lcyls = lcyls;
node->lheads = lheads;
node->lsecs = lsecs;
QTAILQ_INSERT_TAIL(&fw_lchs, node, link);
}
void del_boot_device_lchs(DeviceState *dev, const char *suffix)
{
FWLCHSEntry *i;
if (dev == NULL) {
return;
}
QTAILQ_FOREACH(i, &fw_lchs, link) {
if ((!suffix || !g_strcmp0(i->suffix, suffix)) &&
i->dev == dev) {
QTAILQ_REMOVE(&fw_lchs, i, link);
g_free(i->suffix);
g_free(i);
break;
}
}
}

3
include/sysemu/sysemu.h
View File

@ -103,6 +103,9 @@ void device_add_bootindex_property(Object *obj, int32_t *bootindex,
DeviceState *dev, Error **errp);
void restore_boot_order(void *opaque);
void validate_bootdevices(const char *devices, Error **errp);
void add_boot_device_lchs(DeviceState *dev, const char *suffix,
uint32_t lcyls, uint32_t lheads, uint32_t lsecs);
void del_boot_device_lchs(DeviceState *dev, const char *suffix);
/* handler to set the boot_device order for a specific type of MachineClass */
typedef void QEMUBootSetHandler(void *opaque, const char *boot_order,