Messages in this thread Patch in this message | | | From | Maxim Levitsky <> | Subject | [PATCH 2/5] iommu/amd: x2apic mode: re-enable after resume | Date | Tue, 23 Nov 2021 18:10:35 +0200 |
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Otherwise it is guaranteed to not work after the resume...
Fixes: 66929812955bb ("iommu/amd: Add support for X2APIC IOMMU interrupts")
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> --- drivers/iommu/amd/init.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 8dae85fcfc2eb..b905604f434e1 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -2172,7 +2172,6 @@ static int iommu_setup_intcapxt(struct amd_iommu *iommu) return ret; } - iommu_feature_enable(iommu, CONTROL_INTCAPXT_EN); return 0; } @@ -2195,6 +2194,10 @@ static int iommu_init_irq(struct amd_iommu *iommu) iommu->int_enabled = true; enable_faults: + + if (amd_iommu_xt_mode == IRQ_REMAP_X2APIC_MODE) + iommu_feature_enable(iommu, CONTROL_INTCAPXT_EN); + iommu_feature_enable(iommu, CONTROL_EVT_INT_EN); if (iommu->ppr_log != NULL) -- 2.26.3
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