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From b36365dfbadc27ec0198db969701d05669392138 Mon Sep 17 00:00:00 2001
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Message-Id: <b36365dfbadc27ec0198db969701d05669392138@dist-git>
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From: John Ferlan <jferlan@redhat.com>
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Date: Mon, 17 Dec 2018 20:42:30 -0500
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Subject: [PATCH] RHEL: qemu: Add ability to set sgio values for hostdev
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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https://bugzilla.redhat.com/show_bug.cgi?id=1582424
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RHEL-only
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Add necessary checks in order to allow setting sgio values for a scsi
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host device
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Signed-off-by: John Ferlan <jferlan@redhat.com>
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_conf.c | 25 ++++++++++++++++---------
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1 file changed, 16 insertions(+), 9 deletions(-)
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diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
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index 0451bc70ac..3fee5fe687 100644
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--- a/src/qemu/qemu_conf.c
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+++ b/src/qemu/qemu_conf.c
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@@ -1836,8 +1836,9 @@ qemuSetUnprivSGIO(virDomainDeviceDef *dev)
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virDomainDiskDef *disk = NULL;
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virDomainHostdevDef *hostdev = NULL;
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g_autofree char *sysfs_path = NULL;
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+ g_autofree char *hostdev_path = NULL;
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const char *path = NULL;
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- int val = -1;
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+ int val = 0;
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/* "sgio" is only valid for block disk; cdrom
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* and floopy disk can have empty source.
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@@ -1853,17 +1854,14 @@ qemuSetUnprivSGIO(virDomainDeviceDef *dev)
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} else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) {
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hostdev = dev->data.hostdev;
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- if (!qemuIsSharedHostdev(hostdev))
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+ if (hostdev->source.subsys.u.scsi.protocol ==
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+ VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI)
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return 0;
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- if (hostdev->source.subsys.u.scsi.sgio) {
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- virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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- _("'sgio' is not supported for SCSI "
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- "generic device yet "));
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+ if (!(hostdev_path = qemuGetHostdevPath(hostdev)))
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return -1;
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- }
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- return 0;
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+ path = hostdev_path;
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} else {
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return 0;
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}
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@@ -1872,7 +1870,16 @@ qemuSetUnprivSGIO(virDomainDeviceDef *dev)
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return -1;
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/* By default, filter the SG_IO commands, i.e. set unpriv_sgio to 0. */
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- val = (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED);
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+ if (dev->type == VIR_DOMAIN_DEVICE_DISK) {
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+ if (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED)
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+ val = 1;
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+ } else {
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+ /* Only settable if <shareable/> was present for hostdev */
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+ if (qemuIsSharedHostdev(hostdev) &&
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+ hostdev->source.subsys.u.scsi.sgio ==
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+ VIR_DOMAIN_DEVICE_SGIO_UNFILTERED)
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+ val = 1;
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+ }
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/* Do not do anything if unpriv_sgio is not supported by the kernel and the
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* whitelist is enabled. But if requesting unfiltered access, always call
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--
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2.33.1
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