[Xen-devel] [PATCH] aarch64: advertise the GIC system register interface

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

Advertise the presence of the GIC system register interface (1<<24)
according to H9.248 of the ARM ARM.

This patch allows Xen to boot on QEMU aarch64.

Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 670c07a..a451763 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -136,7 +136,7 @@ static void aarch64_a57_initfn(Object *obj)
     cpu->id_isar3 = 0x01112131;
     cpu->id_isar4 = 0x00011142;
     cpu->id_isar5 = 0x00011121;
-    cpu->id_aa64pfr0 = 0x00002222;
+    cpu->id_aa64pfr0 = 0x01002222;
     cpu->id_aa64dfr0 = 0x10305106;
     cpu->pmceid0 = 0x00000000;
     cpu->pmceid1 = 0x00000000;
@@ -196,7 +196,7 @@ static void aarch64_a53_initfn(Object *obj)
     cpu->id_isar3 = 0x01112131;
     cpu->id_isar4 = 0x00011142;
     cpu->id_isar5 = 0x00011121;
-    cpu->id_aa64pfr0 = 0x00002222;
+    cpu->id_aa64pfr0 = 0x01002222;
     cpu->id_aa64dfr0 = 0x10305106;
     cpu->id_aa64isar0 = 0x00011120;
     cpu->id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */

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