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spapr_hcall: Add address-translation-mode-on-interrupt resource in H_SET_MODE

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This adds handling of the RESOURCE_ADDR_TRANS_MODE resource from
the H_SET_MODE, for POWER8 (PowerISA 2.07) only.

This defines AIL flags for LPCR special register.

This changes @excp_prefix according to the mode, takes effect in TCG.

This turns support of a new capability PPC2_ISA207S flag for TCG.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexey Kardashevskiy 2014-06-04 22:51:05 +10:00 • committed by Alexander Graf
parent c4015bbd50
commit d5ac4f5433
4 changed files with 60 additions and 3 deletions
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47
hw/ppc/spapr_hcall.c
View file

@ -743,6 +743,49 @@ static target_ulong h_set_mode_resouce_le(PowerPCCPU *cpu,
return H_UNSUPPORTED_FLAG;
}
static target_ulong h_set_mode_resouce_addr_trans_mode(PowerPCCPU *cpu,
target_ulong mflags,
target_ulong value1,
target_ulong value2)
{
CPUState *cs;
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
target_ulong prefix;
if (!(pcc->insns_flags2 & PPC2_ISA207S)) {
return H_P2;
}
if (value1) {
return H_P3;
}
if (value2) {
return H_P4;
}
switch (mflags) {
case H_SET_MODE_ADDR_TRANS_NONE:
prefix = 0;
break;
case H_SET_MODE_ADDR_TRANS_0001_8000:
prefix = 0x18000;
break;
case H_SET_MODE_ADDR_TRANS_C000_0000_0000_4000:
prefix = 0xC000000000004000;
break;
default:
return H_UNSUPPORTED_FLAG;
}
CPU_FOREACH(cs) {
CPUPPCState *env = &POWERPC_CPU(cpu)->env;
set_spr(cs, SPR_LPCR, mflags << LPCR_AIL_SHIFT, LPCR_AIL);
env->excp_prefix = prefix;
}
return H_SUCCESS;
}
static target_ulong h_set_mode(PowerPCCPU *cpu, sPAPREnvironment *spapr,
target_ulong opcode, target_ulong *args)
{
@ -753,6 +796,10 @@ static target_ulong h_set_mode(PowerPCCPU *cpu, sPAPREnvironment *spapr,
case H_SET_MODE_RESOURCE_LE:
ret = h_set_mode_resouce_le(cpu, args[0], args[2], args[3]);
break;
case H_SET_MODE_RESOURCE_ADDR_TRANS_MODE:
ret = h_set_mode_resouce_addr_trans_mode(cpu, args[0],
args[2], args[3]);
break;
}
return ret;