Hi Penny,
On 06/09/2022 09:59, Penny Zheng wrote:
static int __init early_scan_node(const void *fdt,
int node, const char *name, int depth,
u32 address_cells, u32 size_cells,
@@ -386,6 +549,8 @@ static int __init early_scan_node(const void *fdt,
process_chosen_node(fdt, node, name, address_cells, size_cells);
else if ( depth == 2 && device_tree_node_compatible(fdt, node,
"xen,domain") )
rc = process_domain_node(fdt, node, name, address_cells, size_cells);
+ else if ( depth <= 3 && device_tree_node_compatible(fdt, node,
"xen,domain-shared-memory-v1") )
+ rc = process_shm_node(fdt, node, address_cells, size_cells);
if ( rc < 0 )
printk("fdt: node `%s': parsing failed\n", name);
diff --git a/xen/arch/arm/include/asm/setup.h b/xen/arch/arm/include/asm/setup.h
index 5815ccf8c5..995eee1d09 100644
--- a/xen/arch/arm/include/asm/setup.h
+++ b/xen/arch/arm/include/asm/setup.h
@@ -23,10 +23,17 @@ typedef enum {
} bootmodule_kind;
+/* Indicates the maximum number of characters(\0 included) for shm_id */
+#define MAX_SHM_ID_LENGTH 16
+
struct membank {
paddr_t start;
paddr_t size;
bool xen_domain; /* whether the memory bank is bound to a Xen domain. */
+#ifdef CONFIG_STATIC_SHM
+ char shm_id[MAX_SHM_ID_LENGTH];
+ unsigned int nr_shm_borrowers;
+#endif
I forgot to mention that this will clash with Henry's series [1]. As
both series are meant for 4.17, please coordinate to decide which series
should be merged first (this is to avoid last minute clash on Friday).
Cheers,
[1]
https://lore.kernel.org/xen-devel/20220905072635.16294-1-henry.w...@arm.com/
--
Julien Grall
