target/riscv/tcg: restrict satp_mode changes in cpu_set_profile

We're changing 'mmu' to true regardless of whether the profile is
being enabled or not, and at the same time we're changing satp_mode to
profile->enabled.

This will promote a situation where we'll set mmu=on without a virtual
memory mode, which is a mistake.

Only touch 'mmu' and satp_mode if the profile is being enabled.

Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Fixes: 55398025e7 ("target/riscv: add satp_mode profile support")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Message-ID: <20250528184407.1451983-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 55fd9e5584581b20406a7dc66037d6d88f4cf86d..39de32cf76480cc7c448577856d6a36485440d81 100644 (file)
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -1365,16 +1365,16 @@ static void cpu_set_profile(Object *obj, Visitor *v, const char *name,
 
     if (profile->enabled) {
         cpu->env.priv_ver = profile->priv_spec;
-    }
 
 #ifndef CONFIG_USER_ONLY
-    if (profile->satp_mode != RISCV_PROFILE_ATTR_UNUSED) {
-        object_property_set_bool(obj, "mmu", true, NULL);
-        const char *satp_prop = satp_mode_str(profile->satp_mode,
-                                              riscv_cpu_is_32bit(cpu));
-        object_property_set_bool(obj, satp_prop, profile->enabled, NULL);
-    }
+        if (profile->satp_mode != RISCV_PROFILE_ATTR_UNUSED) {
+            object_property_set_bool(obj, "mmu", true, NULL);
+            const char *satp_prop = satp_mode_str(profile->satp_mode,
+                                                  riscv_cpu_is_32bit(cpu));
+            object_property_set_bool(obj, satp_prop, true, NULL);
+        }
 #endif
+    }
 
     for (i = 0; misa_bits[i] != 0; i++) {
         uint32_t bit = misa_bits[i];