1 files changed, 58 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-qemu/qemu.h b/arch/x86/include/asm/arch-qemu/qemu.h
new file mode 100644
index 0000000..061735b
--- /dev/null
+++ b/arch/x86/include/asm/arch-qemu/qemu.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#ifndef _ARCH_QEMU_H_
+#define _ARCH_QEMU_H_
+
+/* Programmable Attribute Map (PAM) Registers */
+#define I440FX_PAM		0x59
+#define Q35_PAM			0x90
+#define PAM_NUM			7
+#define PAM_RW			0x33
+
+/* X-Bus Chip Select Register */
+#define XBCS			0x4e
+#define APIC_EN			(1 << 8)
+
+/* IDE Timing Register */
+#define IDE0_TIM		0x40
+#define IDE1_TIM		0x42
+#define IDE_DECODE_EN		(1 << 15)
+
+/* PCIe ECAM Base Address Register */
+#define PCIEX_BAR		0x60
+#define BAR_EN			(1 << 0)
+
+/* I/O Ports */
+#define CMOS_ADDR_PORT		0x70
+#define CMOS_DATA_PORT		0x71
+
+#define LOW_RAM_ADDR		0x34
+#define HIGH_RAM_ADDR		0x35
+
+#define LOW_HIGHRAM_ADDR	0x5b
+#define MID_HIGHRAM_ADDR	0x5c
+#define HIGH_HIGHRAM_ADDR	0x5d
+
+/* PM registers */
+#define PMBA		0x40
+#define PMREGMISC	0x80
+#define PMIOSE		(1 << 0)
+
+/**
+ * qemu_get_low_memory_size() - Get low memory size
+ *
+ * @return:	size of memory below 4GiB
+ */
+u32 qemu_get_low_memory_size(void);
+
+/**
+ * qemu_get_high_memory_size() - Get high memory size
+ *
+ * @return:	size of memory above 4GiB
+ */
+u64 qemu_get_high_memory_size(void);
+
+#endif /* _ARCH_QEMU_H_ */