aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--hw/ppc/spapr_hcall.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 0004ca5885..6e9b6be58c 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -365,6 +365,27 @@ static target_ulong h_set_dabr(PowerPCCPU *cpu, sPAPRMachineState *spapr,
return H_SUCCESS;
}
+static target_ulong h_set_xdabr(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+ target_ulong opcode, target_ulong *args)
+{
+ target_ulong dabrx = args[1];
+
+ if (!has_spr(cpu, SPR_DABR) || !has_spr(cpu, SPR_DABRX)) {
+ return H_HARDWARE;
+ }
+
+ if ((dabrx & ~0xfULL) != 0 || (dabrx & H_DABRX_HYPERVISOR) != 0
+ || (dabrx & (H_DABRX_KERNEL | H_DABRX_USER)) == 0) {
+ return H_PARAMETER;
+ }
+
+ cpu_synchronize_state(CPU(cpu));
+ cpu->env.spr[SPR_DABRX] = dabrx;
+ cpu->env.spr[SPR_DABR] = args[0];
+
+ return H_SUCCESS;
+}
+
#define FLAGS_REGISTER_VPA 0x0000200000000000ULL
#define FLAGS_REGISTER_DTL 0x0000400000000000ULL
#define FLAGS_REGISTER_SLBSHADOW 0x0000600000000000ULL
@@ -1023,6 +1044,7 @@ static void hypercall_register_types(void)
/* processor register resource access h-calls */
spapr_register_hypercall(H_SET_SPRG0, h_set_sprg0);
spapr_register_hypercall(H_SET_DABR, h_set_dabr);
+ spapr_register_hypercall(H_SET_XDABR, h_set_xdabr);
spapr_register_hypercall(H_SET_MODE, h_set_mode);
/* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate