#include <palacios/vmm_io.h>
#include <palacios/vmm_string.h>
#include <palacios/vmm.h>
+#include <palacios/vm_guest.h>
-
-#ifndef DEBUG_IO
+#ifndef CONFIG_DEBUG_IO
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
-static int default_write(ushort_t port, void *src, uint_t length, void * priv_data);
-static int default_read(ushort_t port, void * dst, uint_t length, void * priv_data);
+static int default_write(uint16_t port, void *src, uint_t length, void * priv_data);
+static int default_read(uint16_t port, void * dst, uint_t length, void * priv_data);
void v3_init_io_map(struct guest_info * info) {
- info->io_map.rb_node = NULL;
+
+ info->io_map.map.rb_node = NULL;
+ info->io_map.arch_data = NULL;
+ info->io_map.update_map = NULL;
+
}
static inline struct v3_io_hook * __insert_io_hook(struct guest_info * info, struct v3_io_hook * hook) {
- struct rb_node ** p = &(info->io_map.rb_node);
+ struct rb_node ** p = &(info->io_map.map.rb_node);
struct rb_node * parent = NULL;
struct v3_io_hook * tmp_hook = NULL;
return ret;
}
- v3_rb_insert_color(&(hook->tree_node), &(info->io_map));
+ v3_rb_insert_color(&(hook->tree_node), &(info->io_map.map));
return NULL;
}
-struct v3_io_hook * v3_get_io_hook(struct guest_info * info, uint_t port) {
- struct rb_node * n = info->io_map.rb_node;
+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;
while (n) {
-
-int v3_hook_io_port(struct guest_info * info, uint_t port,
- int (*read)(ushort_t port, void * dst, uint_t length, void * priv_data),
- int (*write)(ushort_t port, void * src, uint_t length, void * priv_data),
+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) {
struct v3_io_hook * io_hook = (struct v3_io_hook *)V3_Malloc(sizeof(struct v3_io_hook));
io_hook->priv_data = priv_data;
if (insert_io_hook(info, io_hook)) {
- V3_Free(io_hook);
- return -1;
+ 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) {
+ 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));
+ v3_rb_erase(&(hook->tree_node), &(info->io_map.map));
- V3_Free(hook);
+ 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);
+ }
- return 0;
+ V3_Free(hook);
+
+ 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));
- 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;
+ }
+
+ 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));
+ }
+
+}
+
- do {
- tmp_hook = rb_entry(node, struct v3_io_hook, tree_node);
- 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));
+ }
}
/*
* Write a byte to an I/O port.
*/
-void v3_outb(ushort_t port, uchar_t value) {
+void v3_outb(uint16_t port, uint8_t value) {
__asm__ __volatile__ (
"outb %b0, %w1"
:
/*
* Read a byte from an I/O port.
*/
-uchar_t v3_inb(ushort_t port) {
- uchar_t value;
+uint8_t v3_inb(uint16_t port) {
+ uint8_t value;
__asm__ __volatile__ (
"inb %w1, %b0"
/*
* Write a word to an I/O port.
*/
-void v3_outw(ushort_t port, ushort_t value) {
+void v3_outw(uint16_t port, uint16_t value) {
__asm__ __volatile__ (
"outw %w0, %w1"
:
/*
* Read a word from an I/O port.
*/
-ushort_t v3_inw(ushort_t port) {
- ushort_t value;
+uint16_t v3_inw(uint16_t port) {
+ uint16_t value;
__asm__ __volatile__ (
"inw %w1, %w0"
/*
* Write a double word to an I/O port.
*/
-void v3_outdw(ushort_t port, uint_t value) {
+void v3_outdw(uint16_t port, uint_t value) {
__asm__ __volatile__ (
"outl %0, %1"
:
/*
* Read a double word from an I/O port.
*/
-uint_t v3_indw(ushort_t port) {
+uint_t v3_indw(uint16_t port) {
uint_t value;
__asm__ __volatile__ (
/* FIX ME */
-static int default_write(ushort_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(ushort_t port, void * dst, uint_t length, void * priv_data) {
-
- /*
- uchar_t value;
-
- __asm__ __volatile__ (
- "inb %w1, %b0"
- : "=a" (value)
- : "Nd" (port)
- );
-
- return value;
- */
+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;
+ }
- return 0;
+ return length;
}
