@@ -307,6 +307,7 @@ struct IntelIOMMUState {
bool dma_drain; /* Whether DMA r/w draining enabled */
bool dma_translation; /* Whether DMA translation supported */
bool pasid; /* Whether to support PASID */
+ bool fs1gp; /* First Stage 1-GByte Page Support */
/*
* Protects IOMMU states in general. Currently it protects the
@@ -3785,6 +3785,7 @@ static Property vtd_properties[] = {
DEFINE_PROP_BOOL("x-pasid-mode", IntelIOMMUState, pasid, false),
DEFINE_PROP_BOOL("dma-drain", IntelIOMMUState, dma_drain, true),
DEFINE_PROP_BOOL("dma-translation", IntelIOMMUState, dma_translation, true),
+ DEFINE_PROP_BOOL("fs1gp", IntelIOMMUState, fs1gp, true),
DEFINE_PROP_END_OF_LIST(),
};
@@ -4513,7 +4514,9 @@ static void vtd_cap_init(IntelIOMMUState *s)
/* TODO: read cap/ecap from host to decide which cap to be exposed. */
if (s->scalable_modern) {
s->ecap |= VTD_ECAP_SMTS | VTD_ECAP_FLTS;
- s->cap |= VTD_CAP_FS1GP;
+ if (s->fs1gp) {
+ s->cap |= VTD_CAP_FS1GP;
+ }
} else if (s->scalable_mode) {
s->ecap |= VTD_ECAP_SMTS | VTD_ECAP_SRS | VTD_ECAP_SLTS;
}