ePAPR defines the initial values of cpu registers. This patch initialize
the GPRs as per ePAPR specification.
This resolves the issue of guest reboot/reset (guest hang on reboot).
Signed-off-by: Bharat Bhushan <bharat.bhushan@xxxxxxxxxxxxx>
Signed-off-by: Stuart Yoder <stuart.yoder@xxxxxxxxxxxxx>
---
hw/ppc/e500.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index c1bdb6b..a47f976 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -37,6 +37,7 @@
#include "qemu/host-utils.h"
#include "hw/pci-host/ppce500.h"
+#define EPAPR_MAGIC (0x45504150)
#define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb"
#define UIMAGE_LOAD_BASE 0
#define DTC_LOAD_PAD 0x1800000
@@ -444,6 +445,12 @@ static void ppce500_cpu_reset(void *opaque)
cs->halted = 0;
env->gpr[1] = (16<<20) - 8;
env->gpr[3] = bi->dt_base;
+ env->gpr[4] = 0;
+ env->gpr[5] = 0;
+ env->gpr[6] = EPAPR_MAGIC;
+ env->gpr[7] = (64 * 1024 * 1024);
+ env->gpr[8] = 0;
+ env->gpr[9] = 0;
env->nip = bi->entry;
mmubooke_create_initial_mapping(env);
}
--
1.7.0.4
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