diff mbox series

[v2,19/22] target/arm/cpu: Inform about reading confidential CPU registers

Message ID 20240419155709.318866-21-jean-philippe@linaro.org
State New
Headers show
Series arm: Run CCA VMs with KVM | expand

Commit Message

Jean-Philippe Brucker April 19, 2024, 3:57 p.m. UTC 
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 <jean-philippe@linaro.org>
---
v1->v2: new
---
 target/arm/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index ab8d007a86..18d1b88e2f 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1070,6 +1070,11 @@  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) {