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-rw-r--r--target-ppc/kvm.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index e00991920a..b5fff70f09 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -1992,3 +1992,39 @@ void kvmppc_hash64_free_pteg(uint64_t token)
g_free(htab_buf);
return;
}
+
+void kvmppc_hash64_write_pte(CPUPPCState *env, target_ulong pte_index,
+ target_ulong pte0, target_ulong pte1)
+{
+ int htab_fd;
+ struct kvm_get_htab_fd ghf;
+ struct kvm_get_htab_buf hpte_buf;
+
+ ghf.flags = 0;
+ ghf.start_index = 0; /* Ignored */
+ htab_fd = kvm_vm_ioctl(kvm_state, KVM_PPC_GET_HTAB_FD, &ghf);
+ if (htab_fd < 0) {
+ goto error_out;
+ }
+
+ hpte_buf.header.n_valid = 1;
+ hpte_buf.header.n_invalid = 0;
+ hpte_buf.header.index = pte_index;
+ hpte_buf.hpte[0] = pte0;
+ hpte_buf.hpte[1] = pte1;
+ /*
+ * Write the hpte entry.
+ * CAUTION: write() has the warn_unused_result attribute. Hence we
+ * need to check the return value, even though we do nothing.
+ */
+ if (write(htab_fd, &hpte_buf, sizeof(hpte_buf)) < 0) {
+ goto out_close;
+ }
+
+out_close:
+ close(htab_fd);
+ return;
+
+error_out:
+ return;
+}