From: Penny Zheng <penny.zh...@arm.com>
To add statically shared memory nodes in Dom0, user shall put according
static shared memory configuration under /chosen node.
This commit adds shm-processing function process_shm in construct_dom0
to enable statically shared memory on Dom0.
Signed-off-by: Penny Zheng <penny.zh...@arm.com>
Reviewed-by: Stefano Stabellini <sstabell...@kernel.org>
---
v5 change:
- no change
---
v4 change:
- no change
---
v3 change:
- no change
---
v2 change:
- no change
---
xen/arch/arm/domain_build.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 4d62440a0e..b57c60f411 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -2658,6 +2658,11 @@ static int __init handle_node(struct domain *d, struct
kernel_info *kinfo,
if ( res )
return res;
}
+
+ res = make_resv_memory_node(d, kinfo->fdt, addrcells, sizecells,
+ &kinfo->shm_mem);
+ if ( res )
+ return res;
}
res = fdt_end_node(kinfo->fdt);
@@ -3730,6 +3735,9 @@ static int __init construct_dom0(struct domain *d)
{
struct kernel_info kinfo = {};
int rc;
+#ifdef CONFIG_STATIC_SHM
+ const struct dt_device_node *chosen = dt_find_node_by_path("/chosen");
+#endif
/* Sanity! */
BUG_ON(d->domain_id != 0);
@@ -3764,6 +3772,12 @@ static int __init construct_dom0(struct domain *d)
allocate_memory_11(d, &kinfo);
find_gnttab_region(d, &kinfo);
+#ifdef CONFIG_STATIC_SHM
+ rc = process_shm(d, &kinfo, chosen);
+ if ( rc < 0 )
+ return rc;
+#endif
+
/* Map extra GIC MMIO, irqs and other hw stuffs to dom0. */
rc = gic_map_hwdom_extra_mappings(d);
if ( rc < 0 )
--
2.25.1
