@@ -718,6 +718,7 @@ DEF_HELPER_2(store_ptcr, void, env, tl)
#endif
DEF_HELPER_2(store_sdr1, void, env, tl)
DEF_HELPER_2(store_pidr, void, env, tl)
+DEF_HELPER_2(store_lpidr, void, env, tl)
DEF_HELPER_FLAGS_2(store_tbl, TCG_CALL_NO_RWG, void, env, tl)
DEF_HELPER_FLAGS_2(store_tbu, TCG_CALL_NO_RWG, void, env, tl)
DEF_HELPER_FLAGS_2(store_atbl, TCG_CALL_NO_RWG, void, env, tl)
@@ -117,6 +117,21 @@ void helper_store_pidr(CPUPPCState *env, target_ulong val)
tlb_flush(CPU(cpu));
}
+void helper_store_lpidr(CPUPPCState *env, target_ulong val)
+{
+ PowerPCCPU *cpu = ppc_env_get_cpu(env);
+
+ env->spr[SPR_LPIDR] = val;
+
+ /*
+ * We need to flush the TLB on LPID changes as we only tag HV vs
+ * guest in TCG TLB. Also the quadrants means the HV will
+ * potentially access and cache entries for the current LPID as
+ * well.
+ */
+ tlb_flush(CPU(cpu));
+}
+
void helper_store_hid0_601(CPUPPCState *env, target_ulong val)
{
target_ulong hid0;
@@ -407,6 +407,11 @@ static void spr_write_pidr(DisasContext *ctx, int sprn, int gprn)
gen_helper_store_pidr(cpu_env, cpu_gpr[gprn]);
}
+static void spr_write_lpidr(DisasContext *ctx, int sprn, int gprn)
+{
+ gen_helper_store_lpidr(cpu_env, cpu_gpr[gprn]);
+}
+
static void spr_read_hior(DisasContext *ctx, int gprn, int sprn)
{
tcg_gen_ld_tl(cpu_gpr[gprn], cpu_env, offsetof(CPUPPCState, excp_prefix));
@@ -7876,7 +7881,7 @@ static void gen_spr_book3s_ids(CPUPPCState *env)
spr_register_hv(env, SPR_LPIDR, "LPIDR",
SPR_NOACCESS, SPR_NOACCESS,
SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
+ &spr_read_generic, &spr_write_lpidr,
0x00000000);
spr_register_hv(env, SPR_HFSCR, "HFSCR",
SPR_NOACCESS, SPR_NOACCESS,