diff options
Diffstat (limited to 'qemu/roms/seabios/src/fw/paravirt.h')
| -rw-r--r-- | qemu/roms/seabios/src/fw/paravirt.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/qemu/roms/seabios/src/fw/paravirt.h b/qemu/roms/seabios/src/fw/paravirt.h index 95ffb92ad..ed8e5f1f8 100644 --- a/qemu/roms/seabios/src/fw/paravirt.h +++ b/qemu/roms/seabios/src/fw/paravirt.h @@ -9,6 +9,12 @@ #define PF_XEN (1<<1) #define PF_KVM (1<<2) +typedef struct QemuCfgDmaAccess { + u32 control; + u32 length; + u64 address; +} PACKED QemuCfgDmaAccess; + extern u32 RamSize; extern u64 RamSizeOver4G; extern int PlatformRunningOn; @@ -25,11 +31,23 @@ static inline int runningOnKVM(void) { } // Common paravirt ports. -#define PORT_SMI_CMD 0x00b2 -#define PORT_SMI_STATUS 0x00b3 -#define PORT_QEMU_CFG_CTL 0x0510 -#define PORT_QEMU_CFG_DATA 0x0511 +#define PORT_SMI_CMD 0x00b2 +#define PORT_SMI_STATUS 0x00b3 +#define PORT_QEMU_CFG_CTL 0x0510 +#define PORT_QEMU_CFG_DATA 0x0511 +#define PORT_QEMU_CFG_DMA_ADDR_HIGH 0x0514 +#define PORT_QEMU_CFG_DMA_ADDR_LOW 0x0518 + +// QEMU_CFG_DMA_CONTROL bits +#define QEMU_CFG_DMA_CTL_ERROR 0x01 +#define QEMU_CFG_DMA_CTL_READ 0x02 +#define QEMU_CFG_DMA_CTL_SKIP 0x04 +#define QEMU_CFG_DMA_CTL_SELECT 0x08 + +// QEMU_CFG_DMA ID bit +#define QEMU_CFG_VERSION_DMA 2 +int qemu_cfg_dma_enabled(void); void qemu_preinit(void); void qemu_platform_setup(void); void qemu_cfg_init(void); |