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amd_iommu: Use correct DTE field for interrupt passthrough

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Interrupt passthrough is determine by the bits 191,190,187-184.
These bits are part of the 3rd quad word (i.e. index 2) in DTE. Hence
replace dte[3] by dte[2].

Fixes: b44159fe0 ("x86_iommu/amd: Add interrupt remap support when VAPIC is not enabled")
Signed-off-by: Sairaj Kodilkar <sarunkod@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Message-Id: <20250207045354.27329-2-sarunkod@amd.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Sairaj Kodilkar 2025-02-07 10:23:53 +05:30 • committed by Michael S. Tsirkin
parent 1456e90653
commit 63dc0b8647
1 changed files with 3 additions and 3 deletions
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6
hw/i386/amd_iommu.c
View file

@ -1309,15 +1309,15 @@ static int amdvi_int_remap_msi(AMDVIState *iommu,
ret = -AMDVI_IR_ERR;
break;
case AMDVI_IOAPIC_INT_TYPE_NMI:
pass = dte[3] & AMDVI_DEV_NMI_PASS_MASK;
pass = dte[2] & AMDVI_DEV_NMI_PASS_MASK;
trace_amdvi_ir_delivery_mode("nmi");
break;
case AMDVI_IOAPIC_INT_TYPE_INIT:
pass = dte[3] & AMDVI_DEV_INT_PASS_MASK;
pass = dte[2] & AMDVI_DEV_INT_PASS_MASK;
trace_amdvi_ir_delivery_mode("init");
break;
case AMDVI_IOAPIC_INT_TYPE_EINT:
pass = dte[3] & AMDVI_DEV_EINT_PASS_MASK;
pass = dte[2] & AMDVI_DEV_EINT_PASS_MASK;
trace_amdvi_ir_delivery_mode("eint");
break;
default: