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BlockConf: Call backend functions to detect geometry and blocksizes

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geometry: hd_geometry_guess function autodetects the drive geometry.
This patch adds a block backend call, that probes the backing device
geometry. If the inner driver method is implemented and succeeds
(currently only for DASDs), the blkconf_geometry will pass-through
the backing device geometry. Otherwise will fallback to old logic.

blocksize: This patch initializes blocksize properties to 0.
In order to set the property a blkconf_blocksizes was introduced.
If user didn't set physical or logical blocksize, it will
retrieve its value from a driver (only succeeds for DASD), otherwise
it will set default 512 value.

The blkconf_blocksizes call was added to all users of BlkConf.

Signed-off-by: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1424087278-49393-6-git-send-email-tumanova@linux.vnet.ibm.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Ekaterina Tumanova 2015-02-16 12:47:58 +01:00 • committed by Kevin Wolf
parent f0272c4db2
commit 0eb28a4228
10 changed files with 46 additions and 6 deletions
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4
include/hw/qdev-properties.h
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@ -149,8 +149,8 @@ extern PropertyInfo qdev_prop_arraylen;
LostTickPolicy)
#define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f, _d) \
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_blocksize, uint16_t)
#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
DEFINE_PROP_DEFAULT(_n, _s, _f, 0, qdev_prop_blocksize, uint16_t)
#define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)