[RFC v3 14/24] target/arm/cpu: Don't read Realm registers

From: Jean-Philippe Brucker <[email protected]>

The host cannot access registers of a Realm. Instead of showing all
registers as zero in "info registers", display a message about this
restriction.

Signed-off-by: Jean-Philippe Brucker <[email protected]>
Signed-off-by: Mathieu Poirier <[email protected]>
---
 target/arm/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index a13e6dae2a2b..866ed02cf2d2 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -926,6 +926,11 @@ static void aarch64_cpu_dump_state(CPUState *cs, FILE *f, int flags)
     const char *ns_status;
     bool sve;
 
+    if (cpu->kvm_rme) {
+        qemu_fprintf(f, "the CPU registers are confidential to the realm\n");
+        return;
+    }
+
     qemu_fprintf(f, " PC=%016" PRIx64 " ", env->pc);
     for (i = 0; i < 32; i++) {
         if (i == 31) {
-- 
2.43.0