diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/intel_iommu.c | 5 | ||||
| -rw-r--r-- | hw/i386/intel_iommu_internal.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 3270fb9162..50251c3090 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -2115,6 +2115,7 @@ static Property vtd_properties[] = { DEFINE_PROP_ON_OFF_AUTO("eim", IntelIOMMUState, intr_eim, ON_OFF_AUTO_AUTO), DEFINE_PROP_BOOL("x-buggy-eim", IntelIOMMUState, buggy_eim, false), + DEFINE_PROP_BOOL("caching-mode", IntelIOMMUState, caching_mode, FALSE), DEFINE_PROP_END_OF_LIST(), }; @@ -2496,6 +2497,10 @@ static void vtd_init(IntelIOMMUState *s) s->ecap |= VTD_ECAP_DT; } + if (s->caching_mode) { + s->cap |= VTD_CAP_CM; + } + vtd_reset_context_cache(s); vtd_reset_iotlb(s); diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index 356f188b73..41041219ba 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -202,6 +202,7 @@ #define VTD_CAP_MAMV (VTD_MAMV << 48) #define VTD_CAP_PSI (1ULL << 39) #define VTD_CAP_SLLPS ((1ULL << 34) | (1ULL << 35)) +#define VTD_CAP_CM (1ULL << 7) /* Supported Adjusted Guest Address Widths */ #define VTD_CAP_SAGAW_SHIFT 8 |