New files to add HAX support

QEMU emulator interacts with the HAX kernel module. A HAX (Hardware-based Accelerated eXecution)
kernel module is required to use HAX support. Most guest instructions run in VMX non-root
(i.e. in hardware) mode and achieve near-native (relative to the host) performance.
QEMU still emulates PIO/MMIO instructions and non-PG (paging) mode operations.

HAX is supported only on Mac OS X and Windows hosts when Intel VT is present.

Change-Id: I8dd52a35e315437dc568f555742bb8ab7e9d8ab2
Signed-off-by: Zhang, Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Xin, Xiaohui <xiaohui.xin@intel.com>
Signed-off-by: Jiang Yunhong <yunhong.jiang@intel.com>
Signed-off-by: Nakajima, Jun <jun.nakajima@intel.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/target-i386/hax-i386.h b/target-i386/hax-i386.h
new file mode 100644
index 0000000..e55e584
--- /dev/null
+++ b/target-i386/hax-i386.h
@@ -0,0 +1,90 @@
+/*
+** Copyright (c) 2011, Intel Corporation
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+
+#ifndef _HAX_I386_H
+#define _HAX_I386_H
+
+#include "android/utils/debug.h"
+#include "hax.h"
+
+#ifdef CONFIG_DARWIN
+typedef int hax_fd;
+#endif
+
+#ifdef CONFIG_WIN32
+typedef HANDLE hax_fd;
+#endif
+
+extern struct hax_state hax_global;
+struct hax_vcpu_state
+{
+    hax_fd fd;
+    int vcpu_id;
+    int emulation_state;
+    struct hax_tunnel *tunnel;
+    unsigned char *iobuf;
+};
+
+struct hax_state
+{
+    hax_fd fd; /* the global hax device interface */
+    uint32_t version;
+    struct hax_vm *vm;
+};
+
+#define HAX_MAX_VCPU 0x10
+#define MAX_VM_ID 0x40
+#define MAX_VCPU_ID 0x40
+
+struct hax_vm
+{
+    hax_fd fd;
+    int id;
+    struct hax_vcpu_state *vcpus[HAX_MAX_VCPU];
+};
+
+/* Functions exported to host specific mode */
+hax_fd hax_vcpu_get_fd(CPUState *env);
+int valid_hax_tunnel_size(uint16_t size);
+
+/* Host specific functions */
+int hax_mod_version(struct hax_state *hax, struct hax_module_version *version);
+int hax_inject_interrupt(CPUState *env, int vector);
+struct hax_vm *hax_vm_create(struct hax_state *hax);
+int hax_vcpu_run(struct hax_vcpu_state *vcpu);
+int hax_vcpu_create(int id);
+int hax_sync_vcpu_state(CPUState *env, struct vcpu_state_t *state, int set);
+int hax_sync_msr(CPUState *env, struct hax_msr_data *msrs, int set);
+int hax_sync_fpu(CPUState *env, struct fx_layout *fl, int set);
+int hax_vm_destroy(struct hax_vm *vm);
+
+/* Common host function */
+int hax_host_create_vm(struct hax_state *hax, int vm_id);
+hax_fd hax_host_open_vm(struct hax_state *hax, int vm_id);
+int hax_host_create_vcpu(hax_fd vm_fd, int vcpuid);
+hax_fd hax_host_open_vcpu(int vmid, int vcpuid);
+int hax_host_setup_vcpu_channel(struct hax_vcpu_state *vcpu);
+hax_fd hax_mod_open(void);
+
+
+#ifdef CONFIG_DARWIN
+#include "target-i386/hax-darwin.h"
+#endif
+
+#ifdef CONFIG_WIN32
+#include "target-i386/hax-windows.h"
+#endif
+
+#include "target-i386/hax-interface.h"
+
+#endif