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 <address@hidden>
---
hw/ppc/spapr_hcall.c | 47
+++++++++++++++++++++++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 5 +++++
target-ppc/cpu.h | 4 +++-
target-ppc/excp_helper.c | 7 +++++--
4 files changed, 60 insertions(+), 3 deletions(-)
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 443e2b6..e586c8b 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -740,6 +740,49 @@ 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_SH, LPCR_AIL);
+ env->excp_prefix = prefix;