diff mbox series

[5/8] hw/hexagon: Modify "Standalone" symbols

Message ID 20250301172045.1295412-6-brian.cain@oss.qualcomm.com (mailing list archive)
State New
Headers show
Series hexagon system emu, part 3/3 | expand

Commit Message

Brian Cain March 1, 2025, 5:20 p.m. UTC 
From: Brian Cain <bcain@quicinc.com>

These symbols are used by Hexagon Standalone OS to indicate whether
the program should halt and wait for interrupts at startup.  For QEMU,
we want these programs to just continue crt0 startup through to the user
program's main().

Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
---
 hw/hexagon/hexagon_dsp.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/hw/hexagon/hexagon_dsp.c b/hw/hexagon/hexagon_dsp.c
index c4962a98bc..34bbe98149 100644
--- a/hw/hexagon/hexagon_dsp.c
+++ b/hw/hexagon/hexagon_dsp.c
@@ -28,9 +28,17 @@ 
 
 #include "machine_cfg_v66g_1024.h.inc"
 
+static hwaddr isdb_secure_flag;
+static hwaddr isdb_trusted_flag;
 static void hex_symbol_callback(const char *st_name, int st_info,
                                 uint64_t st_value, uint64_t st_size)
 {
+    if (!g_strcmp0("isdb_secure_flag", st_name)) {
+        isdb_secure_flag = st_value;
+    }
+    if (!g_strcmp0("isdb_trusted_flag", st_name)) {
+        isdb_trusted_flag = st_value;
+    }
 }
 
 /* Board init.  */
@@ -59,6 +67,13 @@  static void hexagon_init_bootstrap(MachineState *machine, HexagonCPU *cpu)
 {
     if (machine->kernel_filename) {
         hexagon_load_kernel(cpu);
+        uint32_t mem = 1;
+        if (isdb_secure_flag) {
+            cpu_physical_memory_write(isdb_secure_flag, &mem, sizeof(mem));
+        }
+        if (isdb_trusted_flag) {
+            cpu_physical_memory_write(isdb_trusted_flag, &mem, sizeof(mem));
+        }
     }
 }