commit 68f9f7084146b48acb68c606b81edcb04d69d41c
author Suraj Jitindar Singh <sjitindarsingh@gmail.com> Wed Mar 06 17:06:08 2019 +1100
committer David Gibson <david@gibson.dropbear.id.au> Tue Mar 12 14:33:04 2019 +1100
tree 783b41efed17ce4fe1eb7e6909e056e87a6a8b06
parent e075623aa517b0690ec978772df008d7e00ebce5

target/ppc/spapr: Enable H_PAGE_INIT in-kernel handling

The H_CALL H_PAGE_INIT can be used to zero or copy a page of guest
memory. Enable the in-kernel H_PAGE_INIT handler.

The in-kernel handler takes half the time to complete compared to
handling the H_CALL in userspace.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Message-Id: <20190306060608.19935-1-sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

target/ppc/kvm.c

diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index 4a79a75..1c0a586 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -2044,6 +2044,11 @@
     kvmppc_enable_hcall(kvm_state, H_CLEAR_MOD);
 }
 
+void kvmppc_enable_h_page_init(void)
+{
+    kvmppc_enable_hcall(kvm_state, H_PAGE_INIT);
+}
+
 void kvmppc_set_papr(PowerPCCPU *cpu)
 {
     CPUState *cs = CPU(cpu);