[Qemu-devel] [RFC v4 24/29] hw/arm/smmuv3: Store the PASID table GPA in the translation config

[Eric Auger <eric.auger@redhat.com>]

For VFIO integration we will need to pass the Context Descriptor (CD)
table GPA to the host. The CD table is also referred to as the PASID
table. Its GPA corresponds to the s1ctrptr field of the Stream Table
Entry. So let's decode and store it in the configuration structure.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/arm/smmuv3.c              | 1 +
 include/hw/arm/smmu-common.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 9372b15b34..f7497de9e4 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -354,6 +354,7 @@ static int decode_ste(SMMUv3State *s, SMMUTransCfg *cfg,
                       "SMMUv3 S1 stalling fault model not allowed yet\n");
         goto bad_ste;
     }
+    cfg->s1ctxptr = STE_CTXPTR(ste);
     return 0;
 
 bad_ste:
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index 1f37844e5c..353668f4ea 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -68,6 +68,7 @@ typedef struct SMMUTransCfg {
     uint8_t tbi;               /* Top Byte Ignore */
     uint16_t asid;
     SMMUTransTableInfo tt[2];
+    dma_addr_t s1ctxptr;
     uint32_t iotlb_hits;       /* counts IOTLB hits for this asid */
     uint32_t iotlb_misses;     /* counts IOTLB misses for this asid */
 } SMMUTransCfg;
-- 
2.20.1