From: Richard Henderson <richard.henderson@linaro.org>
Date: Mon, 8 Oct 2018 21:22:00 +0000 (-0700)
Subject: target/arm: Fix cortex-a7 id_isar0
X-Git-Tag: qemu-xen-4.13.0-rc1~621^2~12
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=37bdda89eb7615cb225f781c9fb552e144c68ea7;p=qemu-xen.git

target/arm: Fix cortex-a7 id_isar0

The incorrect value advertised only thumb2 div without arm div.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181008212205.17752-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 7ea7e4c131..cd48ad42d8 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1587,7 +1587,10 @@ static void cortex_a7_initfn(Object *obj)
     cpu->id_mmfr1 = 0x40000000;
     cpu->id_mmfr2 = 0x01240000;
     cpu->id_mmfr3 = 0x02102211;
-    cpu->id_isar0 = 0x01101110;
+    /* a7_mpcore_r0p5_trm, page 4-4 gives 0x01101110; but
+     * table 4-41 gives 0x02101110, which includes the arm div insns.
+     */
+    cpu->id_isar0 = 0x02101110;
     cpu->id_isar1 = 0x13112111;
     cpu->id_isar2 = 0x21232041;
     cpu->id_isar3 = 0x11112131;