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| author | Fabien Chouteau <chouteau@adacore.com> | 2013-03-29 02:06:27 +0000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-04-26 23:02:40 +0200 |
| commit | 2cf3eb6df552cee74b52de9989e270b74e42847e (patch) | |
| tree | d53444ebe7b7d442dbe874d34b873ef584b91189 /hw | |
| parent | 3b961124bf8a0b490e4fc3a6a39e004500ae6967 (diff) | |
| download | hqemu-2cf3eb6df552cee74b52de9989e270b74e42847e.zip hqemu-2cf3eb6df552cee74b52de9989e270b74e42847e.tar.gz | |
PPC: Remove env->hreset_excp_prefix
This value is not needed if we use correctly the MSR[IP] bit.
excp_prefix is always 0x00000000, except when the MSR[IP] bit is
implemented and set to 1, in that case excp_prefix is 0xfff00000.
The handling of MSR[IP] was already implemented but not used at reset
because the value of env->msr was changed "manually".
The patch uses the function hreg_store_msr() to set env->msr, this
ensures a good handling of MSR[IP] at reset, and therefore a good value
for excp_prefix.
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc/spapr.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 7a42501..e35c26f 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -801,8 +801,10 @@ static void ppc_spapr_init(QEMUMachineInitArgs *args) /* Set time-base frequency to 512 MHz */ cpu_ppc_tb_init(env, TIMEBASE_FREQ); - /* PAPR always has exception vectors in RAM not ROM */ - env->hreset_excp_prefix = 0; + /* PAPR always has exception vectors in RAM not ROM. To ensure this, + * MSR[IP] should never be set. + */ + env->msr_mask &= ~(1 << 6); /* Tell KVM that we're in PAPR mode */ if (kvm_enabled()) { |
