diff options
| -rw-r--r-- | hw/i386/intel_iommu.c | 16 | ||||
| -rw-r--r-- | hw/i386/intel_iommu_internal.h | 2 | ||||
| -rw-r--r-- | include/hw/i386/intel_iommu.h | 1 |
3 files changed, 12 insertions, 7 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 2acec8555d..a605b5852e 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -916,6 +916,7 @@ static void vtd_interrupt_remap_table_setup(IntelIOMMUState *s) value = vtd_get_quad_raw(s, DMAR_IRTA_REG); s->intr_size = 1UL << ((value & VTD_IRTA_SIZE_MASK) + 1); s->intr_root = value & VTD_IRTA_ADDR_MASK; + s->intr_eime = value & VTD_IRTA_EIME; /* Notify global invalidation */ vtd_iec_notify_all(s, true, 0, 0); @@ -2058,11 +2059,13 @@ static int vtd_remap_irq_get(IntelIOMMUState *iommu, uint16_t index, VTDIrq *irq irq->trigger_mode = irte.trigger_mode; irq->vector = irte.vector; irq->delivery_mode = irte.delivery_mode; - /* Not support EIM yet: please refer to vt-d 9.10 DST bits */ + irq->dest = le32_to_cpu(irte.dest_id); + if (!iommu->intr_eime) { #define VTD_IR_APIC_DEST_MASK (0xff00ULL) #define VTD_IR_APIC_DEST_SHIFT (8) - irq->dest = (le32_to_cpu(irte.dest_id) & VTD_IR_APIC_DEST_MASK) >> \ - VTD_IR_APIC_DEST_SHIFT; + irq->dest = (irq->dest & VTD_IR_APIC_DEST_MASK) >> + VTD_IR_APIC_DEST_SHIFT; + } irq->dest_mode = irte.dest_mode; irq->redir_hint = irte.redir_hint; @@ -2312,7 +2315,7 @@ static void vtd_init(IntelIOMMUState *s) s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO; if (x86_iommu->intr_supported) { - s->ecap |= VTD_ECAP_IR; + s->ecap |= VTD_ECAP_IR | VTD_ECAP_EIM; } vtd_reset_context_cache(s); @@ -2366,10 +2369,9 @@ static void vtd_init(IntelIOMMUState *s) vtd_define_quad(s, DMAR_FRCD_REG_0_2, 0, 0, 0x8000000000000000ULL); /* - * Interrupt remapping registers, not support extended interrupt - * mode for now. + * Interrupt remapping registers. */ - vtd_define_quad(s, DMAR_IRTA_REG, 0, 0xfffffffffffff00fULL, 0); + vtd_define_quad(s, DMAR_IRTA_REG, 0, 0xfffffffffffff80fULL, 0); } /* Should not reset address_spaces when reset because devices will still use diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index 10c20fef20..72b0114927 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -176,6 +176,7 @@ /* IRTA_REG */ #define VTD_IRTA_ADDR_MASK (VTD_HAW_MASK ^ 0xfffULL) +#define VTD_IRTA_EIME (1ULL << 11) #define VTD_IRTA_SIZE_MASK (0xfULL) /* ECAP_REG */ @@ -184,6 +185,7 @@ #define VTD_ECAP_QI (1ULL << 1) /* Interrupt Remapping support */ #define VTD_ECAP_IR (1ULL << 3) +#define VTD_ECAP_EIM (1ULL << 4) /* CAP_REG */ /* (offset >> 4) << 24 */ diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h index e048ced5d5..745b4e7687 100644 --- a/include/hw/i386/intel_iommu.h +++ b/include/hw/i386/intel_iommu.h @@ -271,6 +271,7 @@ struct IntelIOMMUState { bool intr_enabled; /* Whether guest enabled IR */ dma_addr_t intr_root; /* Interrupt remapping table pointer */ uint32_t intr_size; /* Number of IR table entries */ + bool intr_eime; /* Extended interrupt mode enabled */ }; /* Find the VTD Address space associated with the given bus pointer, |