[Xen-devel] [PATCH v6 23/31] xen/arm: ITS: Add 32-bit access to GICR_TYPER

[vijay.kilari@xxxxxxxxx]

From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx>

Add support to read 32-bit access to GICR_TYPER register

Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx>
---
 xen/arch/arm/vgic-v3.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c
index 771bfd1..4caac5e 100644
--- a/xen/arch/arm/vgic-v3.c
+++ b/xen/arch/arm/vgic-v3.c
@@ -122,6 +122,7 @@ static int __vgic_v3_rdistr_rd_mmio_read(struct vcpu *v, 
mmio_info_t *info,
         *r = vgic_reg32_read(GICV3_GICR_IIDR_VAL, info);
         return 1;
     case GICR_TYPER:
+    case GICR_TYPER + 4:
     {
         uint64_t typer, aff;
 
@@ -136,7 +137,10 @@ static int __vgic_v3_rdistr_rd_mmio_read(struct vcpu *v, 
mmio_info_t *info,
         if ( v->arch.vgic.flags & VGIC_V3_RDIST_LAST )
             typer |= GICR_TYPER_LAST;
 
-        *r = vgic_reg64_read(typer, info);
+        if ( dabt.size == DABT_DOUBLE_WORD )
+            *r = vgic_reg64_read(typer, info);
+        else
+            *r = vgic_reg32_read(typer, info);
 
         return 1;
     }
-- 
1.7.9.5


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