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, 76 insertions, 0 deletions

diff --git a/target-i386/hax-darwin.h b/target-i386/hax-darwin.h
new file mode 100644
index 0000000..261cfd3
--- /dev/null
+++ b/target-i386/hax-darwin.h
@@ -0,0 +1,76 @@
+/*
+** 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_UNIX_H
+#define __HAX_UNIX_H
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <stdarg.h>
+
+#define HAX_INVALID_FD  (-1)
+static inline int hax_invalid_fd(hax_fd fd)
+{
+    return fd <= 0;
+}
+
+static inline void hax_mod_close(struct hax_state *hax)
+{
+    close(hax->fd);
+}
+
+static inline void hax_close_fd(hax_fd fd)
+{
+    close(fd);
+}
+
+/* HAX model level ioctl */
+/* Get API version the HAX driver supports */
+#define HAX_IOCTL_VERSION _IOWR(0, 0x20, struct hax_module_version)
+/* Create VM instance and return the vm_id */
+#define HAX_IOCTL_CREATE_VM _IOWR(0, 0x21, int)
+
+/* Pass down a VM_ID, create a VCPU instance for it */
+#define HAX_VM_IOCTL_VCPU_CREATE    _IOR(0, 0x80, int)
+/*
+ * Allocate guest memory, the step of allocate guest memory is:
+ * 1. QEMU will allocate the virtual address to cover the guest memory ranges
+ * 2. QEMU passing down the virtual address and length in the
+ *    HAX_VM_IOCTL_ALLOC_RAM ioctl through hax_alloc_ram_info structure
+ * 3. HAX driver populate physical memory for the virtual address range, and
+ *    lock these physical memory lock, so that they will not be swapped out
+ * 4. HAX driver map the populated physical memory into kernel address space
+ */
+#define HAX_VM_IOCTL_ALLOC_RAM _IOWR(0, 0x81, struct hax_alloc_ram_info)
+/*
+ * Setup translation between guest physical address and host physical address
+ */
+#define HAX_VM_IOCTL_SET_RAM _IOWR(0, 0x82, struct hax_set_ram_info)
+/* Run the guest in non-root mode */
+#define HAX_VCPU_IOCTL_RUN  _IO(0, 0xc0)
+/* Sync QEMU's guest MSR value to HAX driver */
+#define HAX_VCPU_IOCTL_SET_MSRS _IOWR(0, 0xc1, struct hax_msr_data)
+/* Sync HAX driver's guest MSR value to QEMU */
+#define HAX_VCPU_IOCTL_GET_MSRS _IOWR(0, 0xc2, struct hax_msr_data)
+#define HAX_VCPU_IOCTL_SET_FPU  _IOW(0, 0xc3, struct fx_layout)
+#define HAX_VCPU_IOCTL_GET_FPU  _IOR(0, 0xc4, struct fx_layout)
+
+/* Setup HAX tunnel, see structure hax_tunnel comments in hax-interface.h */
+#define HAX_VCPU_IOCTL_SETUP_TUNNEL _IOWR(0, 0xc5, struct hax_tunnel_info)
+/* A interrupt need to be injected into guest */
+#define HAX_VCPU_IOCTL_INTERRUPT _IOWR(0, 0xc6, uint32_t)
+#define HAX_VCPU_SET_REGS       _IOWR(0, 0xc7, struct vcpu_state_t)
+#define HAX_VCPU_GET_REGS       _IOWR(0, 0xc8, struct vcpu_state_t)
+
+#endif /* __HAX_UNIX_H */