#include <palacios/vmm_io.h>
#include <palacios/vmm_string.h>
#include <palacios/vmm.h>
-
+#include <palacios/vm_guest.h>
}
-struct v3_io_hook * v3_get_io_hook(struct guest_info * info, uint_t port) {
+struct v3_io_hook * v3_get_io_hook(struct guest_info * info, uint16_t port) {
struct rb_node * n = info->io_map.map.rb_node;
struct v3_io_hook * hook = NULL;
-
-int v3_hook_io_port(struct guest_info * info, uint_t port,
+int v3_hook_io_port(struct guest_info * info, uint16_t port,
int (*read)(uint16_t port, void * dst, uint_t length, void * priv_data),
int (*write)(uint16_t port, void * src, uint_t length, void * priv_data),
void * priv_data) {
io_hook->priv_data = priv_data;
if (insert_io_hook(info, io_hook)) {
- PrintError("Could not insert IO hook for port %d\n", port);
+ PrintError("Could not insert IO hook for port %u (0x%x)\n", port, port);
V3_Free(io_hook);
return -1;
}
-
- if (info->io_map.update_map(info, port,
- ((read == NULL) ? 0 : 1),
- ((write == NULL) ? 0 : 1)) == -1) {
- PrintError("Could not update IO map for port %d\n", port);
- V3_Free(io_hook);
- return -1;
+ if (info->io_map.update_map) {
+ if (info->io_map.update_map(info, port,
+ ((read == NULL) ? 0 : 1),
+ ((write == NULL) ? 0 : 1)) == -1) {
+ PrintError("Could not update IO map for port %u (0x%x)\n", port, port);
+ V3_Free(io_hook);
+ return -1;
+ }
}
-
return 0;
}
-int v3_unhook_io_port(struct guest_info * info, uint_t port) {
- struct v3_io_hook * hook = v3_get_io_hook(info, port);
+int v3_unhook_io_port(struct guest_info * info, uint16_t port) {
+ struct v3_io_hook * hook = v3_get_io_hook(info, port);
- if (hook == NULL) {
- return -1;
- }
+ if (hook == NULL) {
+ PrintError("Could not find port to unhook %u (0x%x)\n", port, port);
+ return -1;
+ }
- v3_rb_erase(&(hook->tree_node), &(info->io_map.map));
+ v3_rb_erase(&(hook->tree_node), &(info->io_map.map));
- // set the arch map to default (this should be 1, 1)
- info->io_map.update_map(info, port, 0, 0);
+ if (info->io_map.update_map) {
+ // set the arch map to default (this should be 1, 1)
+ info->io_map.update_map(info, port, 0, 0);
+ }
- V3_Free(hook);
+ V3_Free(hook);
- return 0;
+ return 0;
}
-void v3_print_io_map(struct guest_info * info) {
- struct v3_io_hook * tmp_hook = NULL;
- struct rb_node * node = v3_rb_first(&(info->io_map.map));
- PrintDebug("VMM IO Map\n");
+void v3_refresh_io_map(struct guest_info * info) {
+ struct v3_io_map * io_map = &(info->io_map);
+ struct v3_io_hook * tmp = NULL;
+
+ if (io_map->update_map == NULL) {
+ PrintError("Trying to refresh an io map with no backend\n");
+ return;
+ }
- do {
- tmp_hook = rb_entry(node, struct v3_io_hook, tree_node);
+ v3_rb_for_each_entry(tmp, &(io_map->map), tree_node) {
+ io_map->update_map(info, tmp->port,
+ ((tmp->read == NULL) ? 0 : 1),
+ ((tmp->write == NULL) ? 0 : 1));
+ }
- PrintDebug("IO Port: %hu (Read=%p) (Write=%p)\n",
- tmp_hook->port,
- (void *)(tmp_hook->read), (void *)(tmp_hook->write));
- } while ((node = v3_rb_next(node)));
+}
+
+
+
+void v3_print_io_map(struct guest_info * info) {
+ struct v3_io_map * io_map = &(info->io_map);
+ struct v3_io_hook * tmp_hook = NULL;
+
+ V3_Print("VMM IO Map\n");
+
+ v3_rb_for_each_entry(tmp_hook, &(io_map->map), tree_node) {
+ V3_Print("IO Port: %hu (Read=%p) (Write=%p)\n",
+ tmp_hook->port,
+ (void *)(tmp_hook->read), (void *)(tmp_hook->write));
+ }
}
/* FIX ME */
-static int default_write(uint16_t port, void *src, uint_t length, void * priv_data) {
- /*
+static int default_write(uint16_t port, void * src, uint_t length, void * priv_data) {
+ if (length == 1) {
+ v3_outb(port, *(uint8_t *)src);
+ } else if (length == 2) {
+ v3_outw(port, *(uint16_t *)src);
+ } else if (length == 4) {
+ v3_outdw(port, *(uint32_t *)src);
+ } else {
+ return -1;
+ }
- if (length == 1) {
- __asm__ __volatile__ (
- "outb %b0, %w1"
- :
- : "a" (*dst), "Nd" (port)
- );
- } else if (length == 2) {
- __asm__ __volatile__ (
- "outw %b0, %w1"
- :
- : "a" (*dst), "Nd" (port)
- );
- } else if (length == 4) {
- __asm__ __volatile__ (
- "outw %b0, %w1"
- :
- : "a" (*dst), "Nd" (port)
- );
- }
- */
- return 0;
+ return length;
}
static int default_read(uint16_t port, void * dst, uint_t length, void * priv_data) {
+ if (length == 1) {
+ *(uint8_t *)dst = v3_inb(port);
+ } else if (length == 2) {
+ *(uint16_t *)dst = v3_inw(port);
+ } else if (length == 4) {
+ *(uint32_t *)dst = v3_indw(port);
+ } else {
+ return -1;
+ }
- /*
- uint8_t value;
-
- __asm__ __volatile__ (
- "inb %w1, %b0"
- : "=a" (value)
- : "Nd" (port)
- );
-
- return value;
- */
-
- return 0;
+ return length;
}