Am 04.04.2013 um 21:06 schrieb Andreas Färber <afaer...@suse.de>:
> Am 04.04.2013 18:47, schrieb Alexander Graf: >> On -M mac99, we can run 970 CPUs. However, these CPUs define the initial >> instruction pointer they start execution at as part of their bootup protocol, >> so effectively it's up to the board to decide where they start. >> >> This went unnoticed, because they used to boot at the same location our flash >> was mapped to, but due to the recent reset changes our 970 CPUs want to reset >> to 0x100 now, which is always a 0 instruction. >> >> Set the initial IP to something reasonable for -M mac99. >> >> Signed-off-by: Alexander Graf <ag...@suse.de> >> --- >> hw/ppc/mac_newworld.c | 2 ++ >> 1 files changed, 2 insertions(+), 0 deletions(-) >> >> diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c >> index a08a6b2..ca7d98f 100644 >> --- a/hw/ppc/mac_newworld.c >> +++ b/hw/ppc/mac_newworld.c >> @@ -126,6 +126,8 @@ static void ppc_core99_reset(void *opaque) >> PowerPCCPU *cpu = opaque; >> >> cpu_reset(CPU(cpu)); >> + /* 970 CPUs want to get their initial IP as part of their boot protocol >> */ >> + cpu->env.nip = PROM_ADDR + 0x100; >> } >> >> /* PowerPC Mac99 hardware initialisation */ > > That is lacking a restriction to 970... :) There's probably some -cpu to > make it start from -4 instead, no? There shouldn't. All CPUs compatible with -M mac99 boot from 0xfff0100. Alex > > Andreas > > -- > SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany > GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
