xics: Implement H_XIRR_X

This implements H_XIRR_X hypercall in addition to H_XIRR as
it is mandatory for PAPR+ and there is no way for the guest to
detect whether it is supported or not so just add it.

As the Partition Adjunct Option is not supported at the moment,
the CPPR parameter of the hypercall is ignored.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 14 insertions, 0 deletions

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index eb932762b3..a333305d3d 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -27,6 +27,7 @@
 
 #include "hw/hw.h"
 #include "trace.h"
+#include "qemu/timer.h"
 #include "hw/ppc/spapr.h"
 #include "hw/ppc/xics.h"
 #include "qemu/error-report.h"
@@ -679,6 +680,18 @@ static target_ulong h_xirr(PowerPCCPU *cpu, sPAPREnvironment *spapr,
     return H_SUCCESS;
 }
 
+static target_ulong h_xirr_x(PowerPCCPU *cpu, sPAPREnvironment *spapr,
+                             target_ulong opcode, target_ulong *args)
+{
+    CPUState *cs = CPU(cpu);
+    ICPState *ss = &spapr->icp->ss[cs->cpu_index];
+    uint32_t xirr = icp_accept(ss);
+
+    args[0] = xirr;
+    args[1] = cpu_get_real_ticks();
+    return H_SUCCESS;
+}
+
 static target_ulong h_eoi(PowerPCCPU *cpu, sPAPREnvironment *spapr,
                           target_ulong opcode, target_ulong *args)
 {
@@ -853,6 +866,7 @@ static void xics_realize(DeviceState *dev, Error **errp)
     spapr_register_hypercall(H_CPPR, h_cppr);
     spapr_register_hypercall(H_IPI, h_ipi);
     spapr_register_hypercall(H_XIRR, h_xirr);
+    spapr_register_hypercall(H_XIRR_X, h_xirr_x);
     spapr_register_hypercall(H_EOI, h_eoi);
     spapr_register_hypercall(H_IPOLL, h_ipoll);