#include <palacios/vm_guest.h>
-#ifdef CONFIG_SWAPBYPASS_TELEMETRY
+#ifdef V3_CONFIG_SWAPBYPASS_TELEMETRY
#include <palacios/vmm_telemetry.h>
#endif
union swap_header * hdr;
-#ifdef CONFIG_SWAPBYPASS_TELEMETRY
+#ifdef V3_CONFIG_SWAPBYPASS_TELEMETRY
uint32_t pages_in;
uint32_t pages_out;
#endif
static uint64_t swap_get_capacity(void * private_data) {
struct swap_state * swap = (struct swap_state *)private_data;
- PrintDebug("SymSwap: Getting Capacity %d\n", (uint32_t)(swap->capacity));
+ PrintDebug(VM_NONE, VCORE_NONE, "SymSwap: Getting Capacity %d\n", (uint32_t)(swap->capacity));
return swap->capacity;
}
- PrintDebug("SymSwap: Reading %d bytes to %p from %p\n", length,
+ PrintDebug(VM_NONE, VCORE_NONE, "SymSwap: Reading %d bytes to %p from %p\n", length,
buf, (void *)(swap->swap_space + offset));
if (length % 4096) {
- PrintError("Swapping in length that is not a page multiple\n");
+ PrintError(VM_NONE, VCORE_NONE, "Swapping in length that is not a page multiple\n");
}
memcpy(buf, swap->swap_space + offset, length);
int i = 0;
// Notify the shadow paging layer
-#ifdef CONFIG_SWAPBYPASS_TELEMETRY
+#ifdef V3_CONFIG_SWAPBYPASS_TELEMETRY
swap->pages_in += length / 4096;
#endif
uint32_t length = num_bytes;
/*
- PrintDebug("SymSwap: Writing %d bytes to %p from %p\n", length,
+ PrintDebug(VM_NONE, VCORE_NONE, "SymSwap: Writing %d bytes to %p from %p\n", length,
(void *)(swap->swap_space + offset), buf);
*/
if (length % 4096) {
- PrintError("Swapping out length that is not a page multiple\n");
+ PrintError(VM_NONE, VCORE_NONE, "Swapping out length that is not a page multiple\n");
}
if ((swap->active == 0) && (offset == 0)) {
// This is the swap header page
if (length != 4096) {
- PrintError("Initializing Swap space by not writing page multiples. This sucks...\n");
+ PrintError(VM_NONE, VCORE_NONE, "Initializing Swap space by not writing page multiples. This sucks...\n");
return -1;
}
swap->active = 1;
- PrintDebug("Swap Type=%d (magic=%s)\n", swap->hdr->info.type, swap->hdr->magic.magic);
+ PrintDebug(VM_NONE, VCORE_NONE, "Swap Type=%d (magic=%s)\n", swap->hdr->info.type, swap->hdr->magic.magic);
if (v3_register_swap_disk(swap->vm, swap->hdr->info.type, &swap_ops, swap) == -1) {
- PrintError("Error registering symbiotic swap disk\n");
+ PrintError(VM_NONE, VCORE_NONE, "Error registering symbiotic swap disk\n");
return -1;
}
}
if ((swap->active == 1) && (offset != 0)) {
int i = 0;
-#ifdef CONFIG_SWAPBYPASS_TELEMETRY
+#ifdef V3_CONFIG_SWAPBYPASS_TELEMETRY
swap->pages_out += length / 4096;
#endif
}
-static int swap_free(struct vm_device * dev) {
+static int swap_free(void * dev) {
return -1;
}
static struct v3_device_ops dev_ops = {
.free = swap_free,
- .reset = NULL,
- .start = NULL,
- .stop = NULL,
};
-#ifdef CONFIG_SWAPBYPASS_TELEMETRY
+#ifdef V3_CONFIG_SWAPBYPASS_TELEMETRY
static void telemetry_cb(struct v3_vm_info * vm, void * private_data, char * hdr) {
struct vm_device * dev = (struct vm_device *)private_data;
struct swap_state * swap = (struct swap_state *)(dev->private_data);
- V3_Print("%sSwap Device:\n", hdr);
- V3_Print("%s\tPages Swapped in=%d\n", hdr, swap->pages_in);
- V3_Print("%s\tPages Swapped out=%d\n", hdr, swap->pages_out);
+ V3_Print(vm, VCORE_NONE, "%sSwap Device:\n", hdr);
+ V3_Print(vm, VCORE_NONE, "%s\tPages Swapped in=%d\n", hdr, swap->pages_in);
+ V3_Print(vm, VCORE_NONE, "%s\tPages Swapped out=%d\n", hdr, swap->pages_out);
}
#endif
struct swap_state * swap = NULL;
v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
uint32_t capacity = atoi(v3_cfg_val(cfg, "size")) * 1024 * 1024;
- char * name = v3_cfg_val(cfg, "name");
+ char * dev_id = v3_cfg_val(cfg, "ID");
if (!frontend_cfg) {
- PrintError("Initializing sym swap without a frontend device\n");
+ PrintError(vm, VCORE_NONE, "Initializing sym swap without a frontend device\n");
return -1;
}
- PrintDebug("Creating Swap Device (size=%dMB)\n", capacity / (1024 * 1024));
+ PrintDebug(vm, VCORE_NONE, "Creating Swap Device (size=%dMB)\n", capacity / (1024 * 1024));
swap = (struct swap_state *)V3_Malloc(sizeof(struct swap_state) + ((capacity / 4096) / 8));
+ if (!swap) {
+ PrintError(vm, VCORE_NONE, "Cannot allocate in init\n");
+ return -1;
+ }
+
swap->vm = vm;
swap->capacity = capacity;
swap->active = 0;
swap->hdr = (union swap_header *)swap;
- swap->swap_base_addr = (addr_t)V3_AllocPages(swap->capacity / 4096);
+ swap->swap_base_addr = (addr_t)V3_AllocPages(swap->capacity / 4096);
+
+ if (!swap->swap_base_addr) {
+ PrintError(vm, VCORE_NONE, "Cannot allocate swap space\n");
+ V3_Free(swap);
+ return -1;
+ }
+
swap->swap_space = (uint8_t *)V3_VAddr((void *)(swap->swap_base_addr));
memset(swap->swap_space, 0, swap->capacity);
memset(swap->usage_map, 0, ((swap->capacity / 4096) / 8));
- struct vm_device * dev = v3_allocate_device(name, &dev_ops, swap);
+ struct vm_device * dev = v3_allocate_device(dev_id, &dev_ops, swap);
if (v3_attach_device(vm, dev) == -1) {
- PrintError("Could not attach device %s\n", name);
+ PrintError(vm, VCORE_NONE, "Could not attach device %s\n", dev_id);
return -1;
}
if (v3_dev_connect_blk(vm, v3_cfg_val(frontend_cfg, "tag"),
&blk_ops, frontend_cfg, swap) == -1) {
- PrintError("Could not connect %s to frontend %s\n",
- name, v3_cfg_val(frontend_cfg, "tag"));
+ PrintError(vm, VCORE_NONE, "Could not connect %s to frontend %s\n",
+ dev_id, v3_cfg_val(frontend_cfg, "tag"));
return -1;
}
-#ifdef CONFIG_SWAPBYPASS_TELEMETRY
+#ifdef V3_CONFIG_SWAPBYPASS_TELEMETRY
if (vm->enable_telemetry == 1) {
v3_add_telemetry_cb(vm, telemetry_cb, dev);
}