[libvirt] [PATCH 5/8] qemu: set unpriv_sgio when domain starting

Note that cdbfilter is not exactly match unpriv_sgio's value. VIR_DOMAIN_DISK_CDB_FILTER_YES mean the kernel will filter the SCSI commands, which maps to 0 of unpriv_sgio; VIR_DOMAIN_DISK_CDB_FILTER_NO maps to 1 of unpriv_sgio. --- src/qemu/qemu_process.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index c3ecf6f..4117251 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -3730,10 +3730,19 @@ int qemuProcessStart(virConnectPtr conn, _("Raw I/O is not supported on this platform")); #endif - if (disk->type == VIR_DOMAIN_DISK_TYPE_BLOCK && disk->shared) { + if (disk->type == VIR_DOMAIN_DISK_TYPE_BLOCK && disk->shared) { if (qemuAddSharedDisk(driver->sharedDisks, disk->src) < 0) goto cleanup; } + + /* Set sysfs unpriv_sgio if cdbfilter is specified */ + if (disk->cdbfilter) { + if (virSetDeviceUnprivSGIO(disk->src, + (disk->cdbfilter == + VIR_DOMAIN_DISK_CDB_FILTER_NO) + ? 1 : 0) < 0) + goto cleanup; + } } virCommandSetPreExecHook(cmd, qemuProcessHook, &hookData); -- 1.7.7.6