Commit f7209ea1 authored by Sam Eiderman's avatar Sam Eiderman Committed by John Snow
Browse files

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: default avatarKarl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: default avatarArbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: default avatarSam Eiderman <shmuel.eiderman@oracle.com>
Signed-off-by: default avatarSam Eiderman <sameid@google.com>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: default avatarPhilippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: default avatarJohn Snow <jsnow@redhat.com>
parent 64c5bb83

bootdevice.c

+55 −0
Original line number Diff line number Diff line
@@ -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;

        }

    }

}

include/sysemu/sysemu.h

+3 −0
Original line number Diff line number Diff line
@@ -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,