diff options
Diffstat (limited to 'hw/pc.c')
| -rw-r--r-- | hw/pc.c | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -59,6 +59,7 @@ #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0) #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1) #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2) +#define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3) #define MAX_IDE_BUS 2 @@ -67,6 +68,21 @@ static RTCState *rtc_state; static PITState *pit; static PCII440FXState *i440fx_state; +#define E820_NR_ENTRIES 16 + +struct e820_entry { + uint64_t address; + uint64_t length; + uint32_t type; +}; + +struct e820_table { + uint32_t count; + struct e820_entry entry[E820_NR_ENTRIES]; +}; + +static struct e820_table e820_table; + typedef struct isa_irq_state { qemu_irq *i8259; qemu_irq *ioapic; @@ -435,6 +451,23 @@ static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) } } +int e820_add_entry(uint64_t address, uint64_t length, uint32_t type) +{ + int index = e820_table.count; + struct e820_entry *entry; + + if (index >= E820_NR_ENTRIES) + return -EBUSY; + entry = &e820_table.entry[index]; + + entry->address = address; + entry->length = length; + entry->type = type; + + e820_table.count++; + return e820_table.count; +} + static void *bochs_bios_init(void) { void *fw_cfg; @@ -466,6 +499,8 @@ static void *bochs_bios_init(void) if (smbios_table) fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES, smbios_table, smbios_len); + fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, (uint8_t *)&e820_table, + sizeof(struct e820_table)); /* allocate memory for the NUMA channel: one (64bit) word for the number * of nodes, one word for each VCPU->node and one word for each node to |