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Diffstat (limited to 'roms/seabios/src/paravirt.c')
-rw-r--r--roms/seabios/src/paravirt.c349
1 files changed, 0 insertions, 349 deletions
diff --git a/roms/seabios/src/paravirt.c b/roms/seabios/src/paravirt.c
deleted file mode 100644
index 4b5c4417d..000000000
--- a/roms/seabios/src/paravirt.c
+++ /dev/null
@@ -1,349 +0,0 @@
-// Paravirtualization support.
-//
-// Copyright (C) 2009 Red Hat Inc.
-//
-// Authors:
-// Gleb Natapov <gnatapov@redhat.com>
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "config.h" // CONFIG_COREBOOT
-#include "util.h" // dprintf
-#include "byteorder.h" // be32_to_cpu
-#include "ioport.h" // outw
-#include "paravirt.h" // qemu_cfg_port_probe
-#include "smbios.h" // struct smbios_structure_header
-
-int qemu_cfg_present;
-
-static void
-qemu_cfg_select(u16 f)
-{
- outw(f, PORT_QEMU_CFG_CTL);
-}
-
-static void
-qemu_cfg_read(u8 *buf, int len)
-{
- insb(PORT_QEMU_CFG_DATA, buf, len);
-}
-
-static void
-qemu_cfg_skip(int len)
-{
- while (len--)
- inb(PORT_QEMU_CFG_DATA);
-}
-
-static void
-qemu_cfg_read_entry(void *buf, int e, int len)
-{
- qemu_cfg_select(e);
- qemu_cfg_read(buf, len);
-}
-
-void qemu_cfg_port_probe(void)
-{
- char *sig = "QEMU";
- int i;
-
- if (CONFIG_COREBOOT)
- return;
-
- qemu_cfg_present = 1;
-
- qemu_cfg_select(QEMU_CFG_SIGNATURE);
-
- for (i = 0; i < 4; i++)
- if (inb(PORT_QEMU_CFG_DATA) != sig[i]) {
- qemu_cfg_present = 0;
- break;
- }
- dprintf(4, "qemu_cfg_present=%d\n", qemu_cfg_present);
-}
-
-void qemu_cfg_get_uuid(u8 *uuid)
-{
- if (!qemu_cfg_present)
- return;
-
- qemu_cfg_read_entry(uuid, QEMU_CFG_UUID, 16);
-}
-
-int qemu_cfg_show_boot_menu(void)
-{
- u16 v;
- if (!qemu_cfg_present)
- return 1;
-
- qemu_cfg_read_entry(&v, QEMU_CFG_BOOT_MENU, sizeof(v));
-
- return v;
-}
-
-int qemu_cfg_irq0_override(void)
-{
- u8 v;
-
- if (!qemu_cfg_present)
- return 0;
-
- qemu_cfg_read_entry(&v, QEMU_CFG_IRQ0_OVERRIDE, sizeof(v));
-
- return v;
-}
-
-u16 qemu_cfg_acpi_additional_tables(void)
-{
- u16 cnt;
-
- if (!qemu_cfg_present)
- return 0;
-
- qemu_cfg_read_entry(&cnt, QEMU_CFG_ACPI_TABLES, sizeof(cnt));
-
- return cnt;
-}
-
-u16 qemu_cfg_next_acpi_table_len(void)
-{
- u16 len;
-
- qemu_cfg_read((u8*)&len, sizeof(len));
-
- return len;
-}
-
-void* qemu_cfg_next_acpi_table_load(void *addr, u16 len)
-{
- qemu_cfg_read(addr, len);
- return addr;
-}
-
-u16 qemu_cfg_smbios_entries(void)
-{
- u16 cnt;
-
- if (!qemu_cfg_present)
- return 0;
-
- qemu_cfg_read_entry(&cnt, QEMU_CFG_SMBIOS_ENTRIES, sizeof(cnt));
-
- return cnt;
-}
-
-u32 qemu_cfg_e820_entries(void)
-{
- u32 cnt;
-
- if (!qemu_cfg_present)
- return 0;
-
- qemu_cfg_read_entry(&cnt, QEMU_CFG_E820_TABLE, sizeof(cnt));
- return cnt;
-}
-
-void* qemu_cfg_e820_load_next(void *addr)
-{
- qemu_cfg_read(addr, sizeof(struct e820_reservation));
- return addr;
-}
-
-struct smbios_header {
- u16 length;
- u8 type;
-} PACKED;
-
-struct smbios_field {
- struct smbios_header header;
- u8 type;
- u16 offset;
- u8 data[];
-} PACKED;
-
-struct smbios_table {
- struct smbios_header header;
- u8 data[];
-} PACKED;
-
-#define SMBIOS_FIELD_ENTRY 0
-#define SMBIOS_TABLE_ENTRY 1
-
-size_t qemu_cfg_smbios_load_field(int type, size_t offset, void *addr)
-{
- int i;
-
- for (i = qemu_cfg_smbios_entries(); i > 0; i--) {
- struct smbios_field field;
-
- qemu_cfg_read((u8 *)&field, sizeof(struct smbios_header));
- field.header.length -= sizeof(struct smbios_header);
-
- if (field.header.type != SMBIOS_FIELD_ENTRY) {
- qemu_cfg_skip(field.header.length);
- continue;
- }
-
- qemu_cfg_read((u8 *)&field.type,
- sizeof(field) - sizeof(struct smbios_header));
- field.header.length -= sizeof(field) - sizeof(struct smbios_header);
-
- if (field.type != type || field.offset != offset) {
- qemu_cfg_skip(field.header.length);
- continue;
- }
-
- qemu_cfg_read(addr, field.header.length);
- return (size_t)field.header.length;
- }
- return 0;
-}
-
-int qemu_cfg_smbios_load_external(int type, char **p, unsigned *nr_structs,
- unsigned *max_struct_size, char *end)
-{
- static u64 used_bitmap[4] = { 0 };
- char *start = *p;
- int i;
-
- /* Check if we've already reported these tables */
- if (used_bitmap[(type >> 6) & 0x3] & (1ULL << (type & 0x3f)))
- return 1;
-
- /* Don't introduce spurious end markers */
- if (type == 127)
- return 0;
-
- for (i = qemu_cfg_smbios_entries(); i > 0; i--) {
- struct smbios_table table;
- struct smbios_structure_header *header = (void *)*p;
- int string;
-
- qemu_cfg_read((u8 *)&table, sizeof(struct smbios_header));
- table.header.length -= sizeof(struct smbios_header);
-
- if (table.header.type != SMBIOS_TABLE_ENTRY) {
- qemu_cfg_skip(table.header.length);
- continue;
- }
-
- if (end - *p < sizeof(struct smbios_structure_header)) {
- warn_noalloc();
- break;
- }
-
- qemu_cfg_read((u8 *)*p, sizeof(struct smbios_structure_header));
- table.header.length -= sizeof(struct smbios_structure_header);
-
- if (header->type != type) {
- qemu_cfg_skip(table.header.length);
- continue;
- }
-
- *p += sizeof(struct smbios_structure_header);
-
- /* Entries end with a double NULL char, if there's a string at
- * the end (length is greater than formatted length), the string
- * terminator provides the first NULL. */
- string = header->length < table.header.length +
- sizeof(struct smbios_structure_header);
-
- /* Read the rest and terminate the entry */
- if (end - *p < table.header.length) {
- warn_noalloc();
- *p -= sizeof(struct smbios_structure_header);
- continue;
- }
- qemu_cfg_read((u8 *)*p, table.header.length);
- *p += table.header.length;
- *((u8*)*p) = 0;
- (*p)++;
- if (!string) {
- *((u8*)*p) = 0;
- (*p)++;
- }
-
- (*nr_structs)++;
- if (*p - (char *)header > *max_struct_size)
- *max_struct_size = *p - (char *)header;
- }
-
- if (start != *p) {
- /* Mark that we've reported on this type */
- used_bitmap[(type >> 6) & 0x3] |= (1ULL << (type & 0x3f));
- return 1;
- }
-
- return 0;
-}
-
-int qemu_cfg_get_numa_nodes(void)
-{
- u64 cnt;
-
- qemu_cfg_read_entry(&cnt, QEMU_CFG_NUMA, sizeof(cnt));
-
- return (int)cnt;
-}
-
-void qemu_cfg_get_numa_data(u64 *data, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- qemu_cfg_read((u8*)(data + i), sizeof(u64));
-}
-
-u16 qemu_cfg_get_max_cpus(void)
-{
- u16 cnt;
-
- if (!qemu_cfg_present)
- return 0;
-
- qemu_cfg_read_entry(&cnt, QEMU_CFG_MAX_CPUS, sizeof(cnt));
-
- return cnt;
-}
-
-int qemu_cfg_read_file(struct romfile_s *file, void *dst, u32 maxlen)
-{
- if (file->size > maxlen)
- return -1;
- qemu_cfg_read_entry(dst, file->id, file->size);
- return file->size;
-}
-
-struct QemuCfgFile {
- u32 size; /* file size */
- u16 select; /* write this to 0x510 to read it */
- u16 reserved;
- char name[56];
-};
-
-void qemu_cfg_romfile_setup(void)
-{
- if (CONFIG_COREBOOT || !qemu_cfg_present)
- return;
-
- u32 count;
- qemu_cfg_read_entry(&count, QEMU_CFG_FILE_DIR, sizeof(count));
- count = be32_to_cpu(count);
- u32 e;
- for (e = 0; e < count; e++) {
- struct QemuCfgFile qfile;
- qemu_cfg_read((void*)&qfile, sizeof(qfile));
- struct romfile_s *file = malloc_tmp(sizeof(*file));
- if (!file) {
- warn_noalloc();
- return;
- }
- memset(file, 0, sizeof(*file));
- strtcpy(file->name, qfile.name, sizeof(file->name));
- file->size = be32_to_cpu(qfile.size);
- file->id = be16_to_cpu(qfile.select);
- file->copy = qemu_cfg_read_file;
- romfile_add(file);
- dprintf(3, "Found fw_cfg file: %s (size=%d)\n", file->name, file->size);
- }
-}
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