[Qemu-devel] [PATCH 2/3] target/arm: actually enable PAuth in user mode

["Rémi Denis-Courmont" <remi@remlab.net>]

From: Remi Denis-Courmont <remi.denis.courmont@huawei.com>

This always enables IA, IB, DA and DB keys in user mode on the maximum
CPU, in a manner that is consistent with the other CPUs. That is to say
redefining the reset value of SCTLR_ELx registers.

Without this patch, the PAC* and AUT* instructions have no effects
(except PACGA of course).

Signed-off-by: Remi Denis-Courmont <remi.denis.courmont@huawei.com>
---
 target/arm/cpu64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index e9bc461c36..148c103ca4 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -413,8 +413,8 @@ static void aarch64_max_initfn(Object *obj)
                                 (void *)&apdb_bit, &error_fatal);
 
             /* Enable all PAC keys by default.  */
-            cpu->env.cp15.sctlr_el[1] |= SCTLR_EnIA | SCTLR_EnIB;
-            cpu->env.cp15.sctlr_el[1] |= SCTLR_EnDA | SCTLR_EnDB;
+            cpu->reset_sctlr |= SCTLR_EnIA | SCTLR_EnIB;
+            cpu->reset_sctlr |= SCTLR_EnDA | SCTLR_EnDB;
         }
 #endif
 
-- 
2.20.1