hw/riscv: Widen OpenSBI dynamic info struct

Since fw_dynamic_info is only used for non 32 bit targets, target_long
is int64_t anyway.  Rename struct to fw_dynamic_info64 and use int64_t.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20251027-feature-single-binary-hw-v1-v2-3-44478d589ae9@rev.ng>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/riscv/boot.c

diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c
index 9510fca..75f3428 100644
--- a/hw/riscv/boot.c
+++ b/hw/riscv/boot.c
@@ -388,7 +388,8 @@
                                   uint64_t kernel_entry)
 {
     struct fw_dynamic_info32 dinfo32;
-    struct fw_dynamic_info dinfo;
+    struct fw_dynamic_info64 dinfo64;
+    void *dinfo_ptr = NULL;
     size_t dinfo_len;
 
     if (riscv_is_32bit(harts)) {
@@ -398,15 +399,17 @@
         dinfo32.next_addr = cpu_to_le32(kernel_entry);
         dinfo32.options = 0;
         dinfo32.boot_hart = 0;
+        dinfo_ptr = &dinfo32;
         dinfo_len = sizeof(dinfo32);
     } else {
-        dinfo.magic = cpu_to_le64(FW_DYNAMIC_INFO_MAGIC_VALUE);
-        dinfo.version = cpu_to_le64(FW_DYNAMIC_INFO_VERSION);
-        dinfo.next_mode = cpu_to_le64(FW_DYNAMIC_INFO_NEXT_MODE_S);
-        dinfo.next_addr = cpu_to_le64(kernel_entry);
-        dinfo.options = 0;
-        dinfo.boot_hart = 0;
-        dinfo_len = sizeof(dinfo);
+        dinfo64.magic = cpu_to_le64(FW_DYNAMIC_INFO_MAGIC_VALUE);
+        dinfo64.version = cpu_to_le64(FW_DYNAMIC_INFO_VERSION);
+        dinfo64.next_mode = cpu_to_le64(FW_DYNAMIC_INFO_NEXT_MODE_S);
+        dinfo64.next_addr = cpu_to_le64(kernel_entry);
+        dinfo64.options = 0;
+        dinfo64.boot_hart = 0;
+        dinfo_ptr = &dinfo64;
+        dinfo_len = sizeof(dinfo64);
     }
 
     /**
@@ -420,8 +423,7 @@
     }
 
     rom_add_blob_fixed_as("mrom.finfo",
-                           riscv_is_32bit(harts) ?
-                           (void *)&dinfo32 : (void *)&dinfo,
+                           dinfo_ptr,
                            dinfo_len,
                            rom_base + reset_vec_size,
                            &address_space_memory);

include/hw/riscv/boot_opensbi.h

diff --git a/include/hw/riscv/boot_opensbi.h b/include/hw/riscv/boot_opensbi.h
index 18664a1..ab9999b 100644
--- a/include/hw/riscv/boot_opensbi.h
+++ b/include/hw/riscv/boot_opensbi.h
@@ -29,17 +29,17 @@
 };
 
 /** Representation dynamic info passed by previous booting stage */
-struct fw_dynamic_info {
+struct fw_dynamic_info64 {
     /** Info magic */
-    target_long magic;
+    int64_t magic;
     /** Info version */
-    target_long version;
+    int64_t version;
     /** Next booting stage address */
-    target_long next_addr;
+    int64_t next_addr;
     /** Next booting stage mode */
-    target_long next_mode;
+    int64_t next_mode;
     /** Options for OpenSBI library */
-    target_long options;
+    int64_t options;
     /**
      * Preferred boot HART id
      *
@@ -55,7 +55,7 @@
      * stage can set it to -1UL which will force the FW_DYNAMIC firmware
      * to use the relocation lottery mechanism.
      */
-    target_long boot_hart;
+    int64_t boot_hart;
 };
 
 /** Representation dynamic info passed by previous booting stage */