* [Qemu-devel] [PATCH v2 2/2] scsi-disk: scsi-block device for scsi pass-through should not be removable [not found] <cover.1369834642.git.phrdina@redhat.com> @ 2013-05-29 13:47 ` Pavel Hrdina 2013-05-29 14:24 ` Paolo Bonzini 0 siblings, 1 reply; 2+ messages in thread From: Pavel Hrdina @ 2013-05-29 13:47 UTC (permalink / raw) To: qemu-devel; +Cc: kwolf, pbonzini, phrdina This patch adds a new SCSI_DISK_F_NO_REMOVABLE_DEVOPS feature. By this feature we can set that the scsi-block (scsi pass-through) device will still be removable from the guest side, but from monitor it cannot be removed. Signed-off-by: Pavel Hrdina <phrdina@redhat.com> --- changes from v1: - renamed the SCSI_DISK_F_MONITOR_NOT_REMOVABLE into SCSI_DISK_F_NO_REMOVABLE_DEVOPS - set this bit directli in scsi_block_initfn hw/scsi/scsi-disk.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index c8d2a99..729418f 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -61,8 +61,9 @@ typedef struct SCSIDiskReq { BlockAcctCookie acct; } SCSIDiskReq; -#define SCSI_DISK_F_REMOVABLE 0 -#define SCSI_DISK_F_DPOFUA 1 +#define SCSI_DISK_F_REMOVABLE 0 +#define SCSI_DISK_F_DPOFUA 1 +#define SCSI_DISK_F_NO_REMOVABLE_DEVOPS 2 struct SCSIDiskState { @@ -2107,7 +2108,8 @@ static int scsi_initfn(SCSIDevice *dev) return -1; } - if (s->features & (1 << SCSI_DISK_F_REMOVABLE)) { + if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && + !(s->features & (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS))) { bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_removable_block_ops, s); } else { bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_block_ops, s); @@ -2319,6 +2321,12 @@ static int scsi_block_initfn(SCSIDevice *dev) } else { s->qdev.blocksize = 512; } + + /* Makes the scsi-block device not removable by using HMP and QMP eject + * command. + */ + s->features |= (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS); + return scsi_initfn(&s->qdev); } -- 1.8.1.4 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] [PATCH v2 2/2] scsi-disk: scsi-block device for scsi pass-through should not be removable 2013-05-29 13:47 ` [Qemu-devel] [PATCH v2 2/2] scsi-disk: scsi-block device for scsi pass-through should not be removable Pavel Hrdina @ 2013-05-29 14:24 ` Paolo Bonzini 0 siblings, 0 replies; 2+ messages in thread From: Paolo Bonzini @ 2013-05-29 14:24 UTC (permalink / raw) To: Pavel Hrdina; +Cc: kwolf, qemu-devel Il 29/05/2013 15:47, Pavel Hrdina ha scritto: > This patch adds a new SCSI_DISK_F_NO_REMOVABLE_DEVOPS feature. By this > feature we can set that the scsi-block (scsi pass-through) device will still > be removable from the guest side, but from monitor it cannot be removed. > > Signed-off-by: Pavel Hrdina <phrdina@redhat.com> > --- > changes from v1: > - renamed the SCSI_DISK_F_MONITOR_NOT_REMOVABLE > into SCSI_DISK_F_NO_REMOVABLE_DEVOPS > - set this bit directli in scsi_block_initfn > > hw/scsi/scsi-disk.c | 14 +++++++++++--- > 1 file changed, 11 insertions(+), 3 deletions(-) > > diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c > index c8d2a99..729418f 100644 > --- a/hw/scsi/scsi-disk.c > +++ b/hw/scsi/scsi-disk.c > @@ -61,8 +61,9 @@ typedef struct SCSIDiskReq { > BlockAcctCookie acct; > } SCSIDiskReq; > > -#define SCSI_DISK_F_REMOVABLE 0 > -#define SCSI_DISK_F_DPOFUA 1 > +#define SCSI_DISK_F_REMOVABLE 0 > +#define SCSI_DISK_F_DPOFUA 1 > +#define SCSI_DISK_F_NO_REMOVABLE_DEVOPS 2 > > struct SCSIDiskState > { > @@ -2107,7 +2108,8 @@ static int scsi_initfn(SCSIDevice *dev) > return -1; > } > > - if (s->features & (1 << SCSI_DISK_F_REMOVABLE)) { > + if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && > + !(s->features & (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS))) { > bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_removable_block_ops, s); > } else { > bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_block_ops, s); > @@ -2319,6 +2321,12 @@ static int scsi_block_initfn(SCSIDevice *dev) > } else { > s->qdev.blocksize = 512; > } > + > + /* Makes the scsi-block device not removable by using HMP and QMP eject > + * command. > + */ > + s->features |= (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS); > + > return scsi_initfn(&s->qdev); > } > > Applied, thanks. Paolo ^ permalink raw reply [flat|nested] 2+ messages in thread
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2013-05-29 13:47 ` [Qemu-devel] [PATCH v2 2/2] scsi-disk: scsi-block device for scsi pass-through should not be removable Pavel Hrdina
2013-05-29 14:24 ` Paolo Bonzini
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