On 26.04.2013, at 08:17, Bharat Bhushan wrote: > 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).
Why does it hang only on reboot, not on initial bootup? > > Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com> > Signed-off-by: Stuart Yoder <stuart.yo...@freescale.com> > --- > 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) Does ePAPR mention anything wrt GPR state of secondary CPUs? > 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); What is this? Alex > + env->gpr[8] = 0; > + env->gpr[9] = 0; > env->nip = bi->entry; > mmubooke_create_initial_mapping(env); > } > -- > 1.7.0.4 > >
