diff options
| author |   Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2017-07-05 21:29:59 -0500 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2017-07-25 15:03:55 +0200 |
| commit | efe6f241602cb61466895f6816b8ea6b90f04d4e (patch) | |
| tree | 1d0bd8d4bd2b34046007177fd22622aea6218f3f /drivers/iommu | |
| parent | Merge branch 'for-joerg/arm-smmu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into iommu/fixes (diff) | |
| download | linux-dev-efe6f241602cb61466895f6816b8ea6b90f04d4e.tar.xz linux-dev-efe6f241602cb61466895f6816b8ea6b90f04d4e.zip | |
iommu/amd: Enable ga_log_intr when enabling guest_mode
IRTE[GALogIntr] bit should set when enabling guest_mode, which enables
IOMMU to generate entry in GALog when IRTE[IsRun] is not set, and send
an interrupt to notify IOMMU driver.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: stable@vger.kernel.org # v4.9+
Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 688e77576e5a..354cbd6392cd 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4452,6 +4452,7 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info) /* Setting */ irte->hi.fields.ga_root_ptr = (pi_data->base >> 12); irte->hi.fields.vector = vcpu_pi_info->vector; + irte->lo.fields_vapic.ga_log_intr = 1; irte->lo.fields_vapic.guest_mode = 1; irte->lo.fields_vapic.ga_tag = pi_data->ga_tag; |