#define CHECKSUM_REGION_FIRST_BYTE 0x10
#define CHECKSUM_REGION_LAST_BYTE 0x2d
+// Following fields are used by SEABIOS
+#define NVRAM_REG_HIGHMEM_LOW 0x5b
+#define NVRAM_REG_HIGHMEM_MID 0x5c
+#define NVRAM_REG_HIGHMEM_HIGH 0x5d
+#define NVRAM_REG_SMPCPUS 0x5f
+
+#define DEFAULT_BOOTSEQ "cd,hd"
struct nvram_internal {
nvram_state_t dev_state;
// 1. Conventional Mem: 0-640k in K
// 2. Extended Mem: 0-16MB in K
// 3. Big Mem: 0-4G in 64K
- uint16_t memk;
- uint16_t mem_chunks;
+ // 4. High Mem: 4G-... in 64K
// at most 640K of conventional memory
- if (bytes > 640 * 1024) {
- memk=640;
- } else {
- memk = bytes/1024;
+ {
+ uint16_t memk = 0;
+
+ if (bytes > (640 * 1024)) {
+ memk = 640;
+ } else {
+ memk = bytes / 1024;
+ }
+
+ set_memory(nvram, NVRAM_REG_BASE_MEMORY_HIGH, (memk >> 8) & 0x00ff);
+ set_memory(nvram, NVRAM_REG_BASE_MEMORY_LOW, memk & 0x00ff);
}
- set_memory(nvram, NVRAM_REG_BASE_MEMORY_HIGH, (memk >> 8) & 0x00ff);
- set_memory(nvram, NVRAM_REG_BASE_MEMORY_LOW, memk & 0x00ff);
-
// set extended memory - first 1 MB is lost to 640K chunk
- // extended memory is min(0MB, bytes-1MB)
- if (bytes < 1024*1024) {
- // no extended memory
- memk = 0;
- } else {
- memk = (bytes - 1024 * 1024 ) / 1024;
+ // extended memory is min(0MB, bytes - 1MB)
+ {
+ uint16_t memk = 0;
+
+ if (bytes >= (1024 * 1024)) {
+ memk = (bytes - (1024 * 1024)) / 1024;
+ }
+
+ set_memory(nvram, NVRAM_REG_EXT_MEMORY_HIGH, (memk >> 8) & 0x00ff);
+ set_memory(nvram, NVRAM_REG_EXT_MEMORY_LOW, memk & 0x00ff);
+ set_memory(nvram, NVRAM_REG_EXT_MEMORY_2ND_HIGH, (memk >> 8) & 0x00ff);
+ set_memory(nvram, NVRAM_REG_EXT_MEMORY_2ND_LOW, memk & 0x00ff);
}
- set_memory(nvram, NVRAM_REG_EXT_MEMORY_HIGH, (memk >> 8) & 0x00ff);
- set_memory(nvram, NVRAM_REG_EXT_MEMORY_LOW, memk & 0x00ff);
- set_memory(nvram, NVRAM_REG_EXT_MEMORY_2ND_HIGH, (memk >> 8) & 0x00ff);
- set_memory(nvram, NVRAM_REG_EXT_MEMORY_2ND_LOW, memk & 0x00ff);
-
// Set the extended memory beyond 16 MB in 64k chunks
- // this is min(0, bytes-16MB)
- if (bytes<(1024*1024*16)) {
- mem_chunks=0;
- } else {
- mem_chunks = (bytes - (1024 * 1024 * 16)) / (1024 * 64);
+ // this is min(0, bytes - 16MB)
+ {
+ uint16_t mem_chunks = 0;
+
+ if (bytes >= (1024 * 1024 * 16)) {
+ mem_chunks = (bytes - (1024 * 1024 * 16)) / (1024 * 64);
+ }
+
+ set_memory(nvram, NVRAM_REG_AMI_BIG_MEMORY_HIGH, (mem_chunks >> 8) & 0x00ff);
+ set_memory(nvram, NVRAM_REG_AMI_BIG_MEMORY_LOW, mem_chunks & 0x00ff);
}
- set_memory(nvram, NVRAM_REG_AMI_BIG_MEMORY_HIGH, (mem_chunks >> 8) & 0x00ff);
- set_memory(nvram, NVRAM_REG_AMI_BIG_MEMORY_LOW, mem_chunks & 0x00ff);
+ // Set high (>4GB) memory size
+ {
+
+ uint32_t high_mem_chunks = 0;
+
+ if (bytes >= (1024LL * 1024LL * 1024LL * 4LL)) {
+ high_mem_chunks = (bytes - (1024LL * 1024LL * 1024LL * 4LL)) / (1024 * 64);
+ }
+
+ set_memory(nvram, NVRAM_REG_HIGHMEM_LOW, high_mem_chunks & 0xff);
+ set_memory(nvram, NVRAM_REG_HIGHMEM_MID, (high_mem_chunks >> 8) & 0xff);
+ set_memory(nvram, NVRAM_REG_HIGHMEM_HIGH, (high_mem_chunks >> 16) & 0xff);
+ }
return;
}
return checksum;
}
-static int init_nvram_state(struct v3_vm_info * vm, struct nvram_internal * nvram) {
+static int init_nvram_state(struct v3_vm_info * vm, struct nvram_internal * nvram, char *bootseq) {
uint16_t checksum = 0;
+ uint64_t mem_size=vm->mem_size;
+ uint32_t num_cores=vm->num_cores;
+
+#ifdef V3_CONFIG_HVM
+ mem_size = v3_get_hvm_ros_memsize(vm);
+ num_cores = v3_get_hvm_ros_cores(vm);
+#endif
memset(nvram->mem_state, 0, NVRAM_REG_MAX);
memset(nvram->reg_map, 0, NVRAM_REG_MAX / 8);
v3_lock_init(&(nvram->nvram_lock));
//
- // 2 1.44 MB floppy drives
+ // There are no floppy drives
//
-#if 1
- set_memory(nvram, NVRAM_REG_FLOPPY_TYPE, 0x44);
-#else
set_memory(nvram, NVRAM_REG_FLOPPY_TYPE, 0x00);
-#endif
//
- // For old boot sequence style, do floppy first
+ // For old boot sequence style, do non-floppy devices first
//
- set_memory(nvram, NVRAM_REG_BOOTSEQ_OLD, 0x10);
-
-#if 0
- // For new boot sequence style, do floppy, cd, then hd
- set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x31);
- set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x20);
-#endif
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_OLD, 0x00);
+
+ if (!strcasecmp(bootseq,"cd")) {
+ // CD only
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x03);
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x00);
+ } else if (!strcasecmp(bootseq,"cd,hd")) {
+ // CD, then HD
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x23);
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x00);
+ } else if (!strcasecmp(bootseq,"hd")) {
+ // HD only
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x02);
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x00);
+ } else if (!strcasecmp(bootseq,"hd,cd")) {
+ // HD, then CD
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x32);
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x00);
+ } else {
+ PrintError(vm,VCORE_NONE,"nvram: unknown boot sequence '%s', setting 'cd,hd'\n",bootseq);
+ // CD, then HD
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x23);
+ set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x00);
+ }
- // For new boot sequence style, do cd, hd, floppy
- set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_FIRST, 0x23);
- set_memory(nvram, NVRAM_REG_BOOTSEQ_NEW_SECOND, 0x10);
-
-
- // Set equipment byte to note 2 floppies, vga display, keyboard,math,floppy
- set_memory(nvram, NVRAM_REG_EQUIPMENT_BYTE, 0x4f);
- // set_memory(nvram, NVRAM_REG_EQUIPMENT_BYTE, 0xf);
+
+ // Set equipment byte to note no floppies, vga display, keyboard, math
+ set_memory(nvram, NVRAM_REG_EQUIPMENT_BYTE, 0x2e);
// Set the shutdown status gently
nvram->us = 0;
nvram->pus = 0;
- set_memory_size(nvram, vm->mem_size);
+
+ set_memory_size(nvram, mem_size);
init_harddrives(nvram);
+
+ set_memory(nvram, NVRAM_REG_SMPCPUS, num_cores - 1);
/* compute checksum (must follow all assignments here) */
checksum = compute_checksum(nvram);
v3_remove_timer(info,nvram_state->timer);
}
+ v3_lock_deinit(&(nvram_state->nvram_lock));
+
V3_Free(nvram_state);
return 0;
}
};
+/*
+ <device class="NVRAM" id="nvram">
+ <storage>STORAGE</storage>
+ <bootseq>BOOTSEQ</bootseq>
+ </device>
+ STORAGE = the id of the storage controller that will be used to populate
+ the legacy storage device info (e.g., cd, hd the bios knows about)
+
+ BOOTSEQ = the boot sequence desired - note lack of spaces:
+
+ cd - first cd only
+ hd - first hd only
+ cd,hd - first cd, then first hd
+ hd,cd - first hd, then first cd
+
+ The default is cd,hd
+*/
static int nvram_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
struct nvram_internal * nvram_state = NULL;
struct vm_device * ide = v3_find_dev(vm, v3_cfg_val(cfg, "storage"));
char * dev_id = v3_cfg_val(cfg, "ID");
+ char * bootseq = v3_cfg_val(cfg,"bootseq");
+
int ret = 0;
if (!ide) {
return -1;
}
+ if (!bootseq) {
+ bootseq=DEFAULT_BOOTSEQ;
+ PrintDebug(vm, VCORE_NONE, "nvram: using default boot sequence %s\n",bootseq);
+ }
+
PrintDebug(vm, VCORE_NONE, "nvram: init_device\n");
nvram_state = (struct nvram_internal *)V3_Malloc(sizeof(struct nvram_internal) + 1000);
return -1;
}
- init_nvram_state(vm, nvram_state);
+ init_nvram_state(vm, nvram_state, bootseq);
// hook ports
ret |= v3_dev_hook_io(dev, NVRAM_REG_PORT, NULL, &nvram_write_reg_port);
