These changes are the raw update to qemu-2.6.

[kvmfornfv.git] / qemu / roms / seabios / src / fw / paravirt.h

diff --git a/qemu/roms/seabios/src/fw/paravirt.h b/qemu/roms/seabios/src/fw/paravirt.h
index 95ffb92..ed8e5f1 100644 (file)
--- 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);