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57a46d0579
We already have a working multiboot implementation that uses fw_cfg to get its kernel module etc. data in int19 runtime now. So what's missing is a working linux boot option rom. While at it I figured it would be a good idea to take the opcode generator out of pc.c and instead use a proper option rom, like we do with multiboot. So here it is - an fw_cfg using option rom for -kernel with linux! Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
#ifndef FW_CFG_H
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#define FW_CFG_H
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#define FW_CFG_SIGNATURE 0x00
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#define FW_CFG_ID 0x01
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#define FW_CFG_UUID 0x02
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#define FW_CFG_RAM_SIZE 0x03
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#define FW_CFG_NOGRAPHIC 0x04
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#define FW_CFG_NB_CPUS 0x05
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#define FW_CFG_MACHINE_ID 0x06
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#define FW_CFG_KERNEL_ADDR 0x07
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#define FW_CFG_KERNEL_SIZE 0x08
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#define FW_CFG_KERNEL_CMDLINE 0x09
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#define FW_CFG_INITRD_ADDR 0x0a
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#define FW_CFG_INITRD_SIZE 0x0b
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#define FW_CFG_BOOT_DEVICE 0x0c
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#define FW_CFG_NUMA 0x0d
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#define FW_CFG_BOOT_MENU 0x0e
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#define FW_CFG_MAX_CPUS 0x0f
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#define FW_CFG_KERNEL_ENTRY 0x10
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#define FW_CFG_KERNEL_DATA 0x11
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#define FW_CFG_INITRD_DATA 0x12
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#define FW_CFG_CMDLINE_ADDR 0x13
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#define FW_CFG_CMDLINE_SIZE 0x14
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#define FW_CFG_CMDLINE_DATA 0x15
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#define FW_CFG_SETUP_ADDR 0x16
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#define FW_CFG_SETUP_SIZE 0x17
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#define FW_CFG_SETUP_DATA 0x18
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#define FW_CFG_MAX_ENTRY 0x19
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#define FW_CFG_WRITE_CHANNEL 0x4000
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#define FW_CFG_ARCH_LOCAL 0x8000
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#define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL)
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#define FW_CFG_INVALID 0xffff
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#ifndef NO_QEMU_PROTOS
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typedef void (*FWCfgCallback)(void *opaque, uint8_t *data);
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int fw_cfg_add_bytes(void *opaque, uint16_t key, uint8_t *data, uint32_t len);
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int fw_cfg_add_i16(void *opaque, uint16_t key, uint16_t value);
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int fw_cfg_add_i32(void *opaque, uint16_t key, uint32_t value);
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int fw_cfg_add_i64(void *opaque, uint16_t key, uint64_t value);
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int fw_cfg_add_callback(void *opaque, uint16_t key, FWCfgCallback callback,
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void *callback_opaque, uint8_t *data, size_t len);
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void *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
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target_phys_addr_t crl_addr, target_phys_addr_t data_addr);
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#endif /* NO_QEMU_PROTOS */
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#endif
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