target/ppc: Support for H_RPT_INVALIDATE hcall

If KVM_CAP_RPT_INVALIDATE KVM capability is enabled, then

- indicate the availability of H_RPT_INVALIDATE hcall to the guest via
  ibm,hypertas-functions property.
- Enable the hcall

Both the above are done only if the new sPAPR machine capability
cap-rpt-invalidate is set.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Message-Id: <20210706112440.1449562-3-bharata@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 12 insertions, 0 deletions

diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index 104a308..dc93b99 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -89,6 +89,7 @@ static int cap_ppc_count_cache_flush_assist;
 static int cap_ppc_nested_kvm_hv;
 static int cap_large_decr;
 static int cap_fwnmi;
+static int cap_rpt_invalidate;
 
 static uint32_t debug_inst_opcode;
 
@@ -152,6 +153,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
         exit(1);
     }
 
+    cap_rpt_invalidate = kvm_vm_check_extension(s, KVM_CAP_PPC_RPT_INVALIDATE);
     kvm_ppc_register_host_cpu_type();
 
     return 0;
@@ -2040,6 +2042,11 @@ void kvmppc_enable_h_page_init(void)
     kvmppc_enable_hcall(kvm_state, H_PAGE_INIT);
 }
 
+void kvmppc_enable_h_rpt_invalidate(void)
+{
+    kvmppc_enable_hcall(kvm_state, H_RPT_INVALIDATE);
+}
+
 void kvmppc_set_papr(PowerPCCPU *cpu)
 {
     CPUState *cs = CPU(cpu);
@@ -2551,6 +2558,11 @@ int kvmppc_enable_cap_large_decr(PowerPCCPU *cpu, int enable)
     return 0;
 }
 
+int kvmppc_has_cap_rpt_invalidate(void)
+{
+    return cap_rpt_invalidate;
+}
+
 PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)
 {
     uint32_t host_pvr = mfpvr();