Daniel P. Berrange 3b19f45069 ide: support reporting of rotation rate ... The Linux kernel will query the ATA IDENTITY DEVICE data, word 217 to determine the rotations per minute of the disk. If this has the value 1, it is taken to be an SSD and so Linux sets the 'rotational' flag to 0 for the I/O queue and will stop using that disk as a source of random entropy. Other operating systems may also take into account rotation rate when setting up default behaviour. Mgmt apps should be able to set the rotation rate for virtualized block devices, based on characteristics of the host storage in use, so that the guest OS gets sensible behaviour out of the box. This patch thus adds a 'rotation-rate' parameter for 'ide-hd' device types. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <20171004114008.14849-3-berrange@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2017-10-12 12:10:37 +02:00
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ahci.h	ahci: split public and private interface	2017-07-18 11:47:57 -04:00
internal.h	ide: support reporting of rotation rate	2017-10-12 12:10:37 +02:00
pci.h	Use #include "..." for our own headers, <...> for others	2016-07-12 16:19:16 +02:00