x86: qemu: move x86 specific operations out of qfw core

The original implementation of qfw includes several x86 specific
operations, like directly calling outb/inb and using some inline
assembly code which prevents it being ported to other architectures.

This patch adds callback functions and moves those to arch/x86/

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Miao Yan
2016-05-22 19:37:15 -07:00
committed by Bin Meng
parent fcf5c04193
commit 2e82e745a4
3 changed files with 60 additions and 24 deletions

View File

@@ -7,11 +7,6 @@
#ifndef __FW_CFG__
#define __FW_CFG__
#define FW_CONTROL_PORT 0x510
#define FW_DATA_PORT 0x511
#define FW_DMA_PORT_LOW 0x514
#define FW_DMA_PORT_HIGH 0x518
#include <linux/list.h>
enum qemu_fwcfg_items {
@@ -97,6 +92,12 @@ struct fw_cfg_dma_access {
__be64 address;
};
struct fw_cfg_arch_ops {
void (*arch_read_pio)(uint16_t selector, uint32_t size,
void *address);
void (*arch_read_dma)(struct fw_cfg_dma_access *dma);
};
struct bios_linker_entry {
__le32 command;
union {
@@ -148,8 +149,10 @@ struct bios_linker_entry {
/**
* Initialize QEMU fw_cfg interface
*
* @ops: arch specific read operations
*/
void qemu_fwcfg_init(void);
void qemu_fwcfg_init(struct fw_cfg_arch_ops *ops);
void qemu_fwcfg_read_entry(uint16_t entry, uint32_t length, void *address);
int qemu_fwcfg_read_firmware_list(void);