X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm_io.c;h=4c85ec72d878b437718f4aa9fd7ce70f990fece2;hb=e070c6feb9e35665efa6e50ed7549d20c26ff426;hp=12610a1a7d686a8d1aca37e77ec91fb586b20bdd;hpb=cc6a2b14d3fdebb1c705b251e8818fa401786956;p=palacios.git

diff --git a/palacios/src/palacios/svm_io.c b/palacios/src/palacios/svm_io.c
index 12610a1..4c85ec7 100644
--- a/palacios/src/palacios/svm_io.c
+++ b/palacios/src/palacios/svm_io.c
@@ -29,6 +29,29 @@
 #endif
 
 
+static int update_map(struct guest_info * info, uint16_t port, int hook_read, int hook_write) {
+    uchar_t * bitmap = (uint8_t *)(info->io_map.arch_data);;
+    int major = port / 8;
+    int minor = port % 8;
+
+    if ((hook_read == 0) && (hook_write == 0)) {
+	*(bitmap + major) &= ~(0x1 << minor);
+    } else {
+	*(bitmap + major) |= (0x1 << minor);
+    }
+
+    return 0;
+}
+
+
+int v3_init_svm_io_map(struct guest_info * info) {
+    info->io_map.update_map = update_map;
+
+    info->io_map.arch_data = V3_VAddr(V3_AllocPages(3));
+    memset(info->io_map.arch_data, 0, PAGE_SIZE_4KB * 3);
+
+    return 0;
+}