diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2016-06-21 23:48:47 +0200 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2016-06-23 12:43:25 +1000 |
| commit | 61687db252da0df7e584668ed665f1075dd179fa (patch) | |
| tree | 88ecc2dad84ed722cc0e9bfe8d5c380d3c1a8cb2 /target-ppc | |
| parent | a2e71b28e832346409efc795ecd1f0a2bcb705a3 (diff) | |
| download | qemu-61687db252da0df7e584668ed665f1075dd179fa.zip | |
ppc: define a default LPCR value
This allows us to set the appropriate LPCR bits which will be used
when fixing the exception model for the HV mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: previous commit 26a7f1291bb5 did not include the LPCR setting as
it was not needed at the time, adapted commit log ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/translate_init.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index c847a3e562..db56a391d9 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -8518,6 +8518,7 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data) void cpu_ppc_set_papr(PowerPCCPU *cpu) { CPUPPCState *env = &cpu->env; + ppc_spr_t *lpcr = &env->spr_cb[SPR_LPCR]; ppc_spr_t *amor = &env->spr_cb[SPR_AMOR]; /* PAPR always has exception vectors in RAM not ROM. To ensure this, @@ -8527,6 +8528,19 @@ void cpu_ppc_set_papr(PowerPCCPU *cpu) */ env->msr_mask &= ~((1ull << MSR_EP) | MSR_HVB); + /* Set emulated LPCR to not send interrupts to hypervisor. Note that + * under KVM, the actual HW LPCR will be set differently by KVM itself, + * the settings below ensure proper operations with TCG in absence of + * a real hypervisor + */ + lpcr->default_value &= ~(LPCR_VPM0 | LPCR_VPM1 | LPCR_ISL | LPCR_KBV); + lpcr->default_value |= LPCR_LPES0 | LPCR_LPES1; + + /* We should be followed by a CPU reset but update the active value + * just in case... + */ + env->spr[SPR_LPCR] = lpcr->default_value; + /* Set a full AMOR so guest can use the AMR as it sees fit */ env->spr[SPR_AMOR] = amor->default_value = 0xffffffffffffffffull; |