feat(drtm): check drtm arguments during dynamic launch
Check the sanity of arguments before dynamic launch.
Change-Id: Iad68f852b09851b0c55a55df6ba16576e105758a
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Signed-off-by: Lucian Paul-Trifu <lucian.paultrifu@gmail.com>
diff --git a/services/std_svc/drtm/drtm_main.h b/services/std_svc/drtm/drtm_main.h
index b60d954..59e5608 100644
--- a/services/std_svc/drtm/drtm_main.h
+++ b/services/std_svc/drtm/drtm_main.h
@@ -9,10 +9,28 @@
#include <stdint.h>
+#include <assert.h>
#include <lib/smccc.h>
#include "drtm_dma_prot.h"
+#define ALIGNED_UP(x, a) __extension__ ({ \
+ __typeof__(a) _a = (a); \
+ __typeof__(a) _one = 1; \
+ assert(IS_POWER_OF_TWO(_a)); \
+ ((x) + (_a - _one)) & ~(_a - _one); \
+})
+
+#define ALIGNED_DOWN(x, a) __extension__ ({ \
+ __typeof__(a) _a = (a); \
+ __typeof__(a) _one = 1; \
+ assert(IS_POWER_OF_TWO(_a)); \
+ (x) & ~(_a - _one); \
+})
+
+#define DRTM_PAGE_SIZE (4 * (1 << 10))
+#define DRTM_PAGE_SIZE_STR "4-KiB"
+
enum drtm_retc {
SUCCESS = SMC_OK,
NOT_SUPPORTED = SMC_UNK,
@@ -31,7 +49,28 @@
uint64_t tcb_hash_features;
} drtm_features_t;
+struct __packed drtm_dl_args_v1 {
+ uint16_t version; /* Must be 1. */
+ uint8_t __res[2];
+ uint32_t features;
+ uint64_t dlme_paddr;
+ uint64_t dlme_size;
+ uint64_t dlme_img_off;
+ uint64_t dlme_img_ep_off;
+ uint64_t dlme_img_size;
+ uint64_t dlme_data_off;
+ uint64_t dce_nwd_paddr;
+ uint64_t dce_nwd_size;
+ drtm_dl_dma_prot_args_v1_t dma_prot_args;
+} __aligned(__alignof(uint16_t /* First member's type, `uint16_t version' */));
+
drtm_memory_region_descriptor_table_t *drtm_build_address_map(void);
uint64_t drtm_get_address_map_size(void);
+/*
+ * Version-independent type. May be used to avoid excessive line of code
+ * changes when migrating to new struct versions.
+ */
+typedef struct drtm_dl_args_v1 struct_drtm_dl_args;
+
#endif /* DRTM_MAIN_H */