[Xen-devel] [PATCH 5/5] ARM: ITS: Pass ITS in Hardware Domain MADT

[mjaggi@xxxxxxxxxxxxxxxxxx]

From: Manish Jaggi <mjaggi@xxxxxxxxxx>

Adds gicv3_its_make_hwdom_madt to update hwdom MADT ITS information.

Signed-off-by: Manish Jaggi <mjaggi@xxxxxxxxxx>
---
 xen/arch/arm/gic-v3-its.c        | 24 ++++++++++++++++++++++++
 xen/arch/arm/gic-v3.c            |  1 +
 xen/include/asm-arm/gic_v3_its.h |  1 +
 3 files changed, 26 insertions(+)

diff --git a/xen/arch/arm/gic-v3-its.c b/xen/arch/arm/gic-v3-its.c
index 82e025e..6e0a701 100644
--- a/xen/arch/arm/gic-v3-its.c
+++ b/xen/arch/arm/gic-v3-its.c
@@ -935,6 +935,30 @@ u32 gicv3_its_madt_generic_translator_size(void)
 
     return size;
 }
+
+u32 gicv3_its_make_hwdom_madt(u8 *base_ptr, u32 offset)
+{
+    const struct host_its *its_data;
+    u32 table_len = offset, i = 0, size;
+    struct acpi_madt_generic_translator *fw_its;
+    struct acpi_madt_generic_translator *hwdom_its;
+
+    size = sizeof(struct acpi_madt_generic_translator);
+
+    /* Update GIC ITS information in hardware domain's MADT */
+    list_for_each_entry(its_data, &host_its_list, entry)
+    {
+        hwdom_its = (struct acpi_madt_generic_translator *)(base_ptr
+                   + table_len);
+        fw_its = (struct acpi_madt_generic_translator *)
+                    acpi_table_get_entry_madt(
+                        ACPI_MADT_TYPE_GENERIC_TRANSLATOR, i++);
+        memcpy(hwdom_its, fw_its, size);
+        table_len +=  size;
+    }
+
+    return table_len;
+}
 #endif
 /*
  * Create the respective guest DT nodes from a list of host ITSes.
diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index 6c2b562..30b29c9 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -1407,6 +1407,7 @@ static int gicv3_make_hwdom_madt(const struct domain *d, 
u32 offset)
         table_len += size;
     }
 
+    table_len = gicv3_its_make_hwdom_madt(base_ptr, table_len);
     return table_len;
 }
 
diff --git a/xen/include/asm-arm/gic_v3_its.h b/xen/include/asm-arm/gic_v3_its.h
index b849b16..8955451 100644
--- a/xen/include/asm-arm/gic_v3_its.h
+++ b/xen/include/asm-arm/gic_v3_its.h
@@ -139,6 +139,7 @@ void gicv3_its_dt_init(const struct dt_device_node *node);
 int gicv3_its_acpi_init(struct acpi_subtable_header *header,
                                     const unsigned long end);
 u32 gicv3_its_madt_generic_translator_size(void);
+u32 gicv3_its_make_hwdom_madt(u8 *base_ptr, u32 offset);
 #endif
 /* Deny iomem access for its */
 int gicv3_its_deny_access(const struct domain *d);
-- 
2.7.4


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