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-rw-r--r--target/i386/hax/hax-posix.c305
1 files changed, 305 insertions, 0 deletions
diff --git a/target/i386/hax/hax-posix.c b/target/i386/hax/hax-posix.c
new file mode 100644
index 0000000000..735a749d4b
--- /dev/null
+++ b/target/i386/hax/hax-posix.c
@@ -0,0 +1,305 @@
+/*
+ * QEMU HAXM support
+ *
+ * Copyright (c) 2011 Intel Corporation
+ * Written by:
+ * Jiang Yunhong<yunhong.jiang@intel.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+/* HAX module interface - darwin version */
+#include "qemu/osdep.h"
+#include <sys/ioctl.h>
+
+#include "sysemu/cpus.h"
+#include "hax-cpus.h"
+
+hax_fd hax_mod_open(void)
+{
+ int fd = open("/dev/HAX", O_RDWR);
+ if (fd == -1) {
+ fprintf(stderr, "Failed to open the hax module\n");
+ }
+
+ qemu_set_cloexec(fd);
+
+ return fd;
+}
+
+int hax_populate_ram(uint64_t va, uint64_t size)
+{
+ int ret;
+
+ if (!hax_global.vm || !hax_global.vm->fd) {
+ fprintf(stderr, "Allocate memory before vm create?\n");
+ return -EINVAL;
+ }
+
+ if (hax_global.supports_64bit_ramblock) {
+ struct hax_ramblock_info ramblock = {
+ .start_va = va,
+ .size = size,
+ .reserved = 0
+ };
+
+ ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ADD_RAMBLOCK, &ramblock);
+ } else {
+ struct hax_alloc_ram_info info = {
+ .size = (uint32_t)size,
+ .pad = 0,
+ .va = va
+ };
+
+ ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ALLOC_RAM, &info);
+ }
+ if (ret < 0) {
+ fprintf(stderr, "Failed to register RAM block: ret=%d, va=0x%" PRIx64
+ ", size=0x%" PRIx64 ", method=%s\n", ret, va, size,
+ hax_global.supports_64bit_ramblock ? "new" : "legacy");
+ return ret;
+ }
+ return 0;
+}
+
+int hax_set_ram(uint64_t start_pa, uint32_t size, uint64_t host_va, int flags)
+{
+ struct hax_set_ram_info info;
+ int ret;
+
+ info.pa_start = start_pa;
+ info.size = size;
+ info.va = host_va;
+ info.flags = (uint8_t) flags;
+
+ ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_SET_RAM, &info);
+ if (ret < 0) {
+ return -errno;
+ }
+ return 0;
+}
+
+int hax_capability(struct hax_state *hax, struct hax_capabilityinfo *cap)
+{
+ int ret;
+
+ ret = ioctl(hax->fd, HAX_IOCTL_CAPABILITY, cap);
+ if (ret == -1) {
+ fprintf(stderr, "Failed to get HAX capability\n");
+ return -errno;
+ }
+
+ return 0;
+}
+
+int hax_mod_version(struct hax_state *hax, struct hax_module_version *version)
+{
+ int ret;
+
+ ret = ioctl(hax->fd, HAX_IOCTL_VERSION, version);
+ if (ret == -1) {
+ fprintf(stderr, "Failed to get HAX version\n");
+ return -errno;
+ }
+
+ return 0;
+}
+
+static char *hax_vm_devfs_string(int vm_id)
+{
+ return g_strdup_printf("/dev/hax_vm/vm%02d", vm_id);
+}
+
+static char *hax_vcpu_devfs_string(int vm_id, int vcpu_id)
+{
+ return g_strdup_printf("/dev/hax_vm%02d/vcpu%02d", vm_id, vcpu_id);
+}
+
+int hax_host_create_vm(struct hax_state *hax, int *vmid)
+{
+ int ret;
+ int vm_id = 0;
+
+ if (hax_invalid_fd(hax->fd)) {
+ return -EINVAL;
+ }
+
+ if (hax->vm) {
+ return 0;
+ }
+
+ ret = ioctl(hax->fd, HAX_IOCTL_CREATE_VM, &vm_id);
+ *vmid = vm_id;
+ return ret;
+}
+
+hax_fd hax_host_open_vm(struct hax_state *hax, int vm_id)
+{
+ hax_fd fd;
+ char *vm_name = NULL;
+
+ vm_name = hax_vm_devfs_string(vm_id);
+ if (!vm_name) {
+ return -1;
+ }
+
+ fd = open(vm_name, O_RDWR);
+ g_free(vm_name);
+
+ qemu_set_cloexec(fd);
+
+ return fd;
+}
+
+int hax_notify_qemu_version(hax_fd vm_fd, struct hax_qemu_version *qversion)
+{
+ int ret;
+
+ if (hax_invalid_fd(vm_fd)) {
+ return -EINVAL;
+ }
+
+ ret = ioctl(vm_fd, HAX_VM_IOCTL_NOTIFY_QEMU_VERSION, qversion);
+
+ if (ret < 0) {
+ fprintf(stderr, "Failed to notify qemu API version\n");
+ return ret;
+ }
+ return 0;
+}
+
+/* Simply assume the size should be bigger than the hax_tunnel,
+ * since the hax_tunnel can be extended later with compatibility considered
+ */
+int hax_host_create_vcpu(hax_fd vm_fd, int vcpuid)
+{
+ int ret;
+
+ ret = ioctl(vm_fd, HAX_VM_IOCTL_VCPU_CREATE, &vcpuid);
+ if (ret < 0) {
+ fprintf(stderr, "Failed to create vcpu %x\n", vcpuid);
+ }
+
+ return ret;
+}
+
+hax_fd hax_host_open_vcpu(int vmid, int vcpuid)
+{
+ char *devfs_path = NULL;
+ hax_fd fd;
+
+ devfs_path = hax_vcpu_devfs_string(vmid, vcpuid);
+ if (!devfs_path) {
+ fprintf(stderr, "Failed to get the devfs\n");
+ return -EINVAL;
+ }
+
+ fd = open(devfs_path, O_RDWR);
+ g_free(devfs_path);
+ if (fd < 0) {
+ fprintf(stderr, "Failed to open the vcpu devfs\n");
+ }
+ qemu_set_cloexec(fd);
+ return fd;
+}
+
+int hax_host_setup_vcpu_channel(struct hax_vcpu_state *vcpu)
+{
+ int ret;
+ struct hax_tunnel_info info;
+
+ ret = ioctl(vcpu->fd, HAX_VCPU_IOCTL_SETUP_TUNNEL, &info);
+ if (ret) {
+ fprintf(stderr, "Failed to setup the hax tunnel\n");
+ return ret;
+ }
+
+ if (!valid_hax_tunnel_size(info.size)) {
+ fprintf(stderr, "Invalid hax tunnel size %x\n", info.size);
+ ret = -EINVAL;
+ return ret;
+ }
+
+ vcpu->tunnel = (struct hax_tunnel *) (intptr_t) (info.va);
+ vcpu->iobuf = (unsigned char *) (intptr_t) (info.io_va);
+ return 0;
+}
+
+int hax_vcpu_run(struct hax_vcpu_state *vcpu)
+{
+ return ioctl(vcpu->fd, HAX_VCPU_IOCTL_RUN, NULL);
+}
+
+int hax_sync_fpu(CPUArchState *env, struct fx_layout *fl, int set)
+{
+ int ret, fd;
+
+ fd = hax_vcpu_get_fd(env);
+ if (fd <= 0) {
+ return -1;
+ }
+
+ if (set) {
+ ret = ioctl(fd, HAX_VCPU_IOCTL_SET_FPU, fl);
+ } else {
+ ret = ioctl(fd, HAX_VCPU_IOCTL_GET_FPU, fl);
+ }
+ return ret;
+}
+
+int hax_sync_msr(CPUArchState *env, struct hax_msr_data *msrs, int set)
+{
+ int ret, fd;
+
+ fd = hax_vcpu_get_fd(env);
+ if (fd <= 0) {
+ return -1;
+ }
+ if (set) {
+ ret = ioctl(fd, HAX_VCPU_IOCTL_SET_MSRS, msrs);
+ } else {
+ ret = ioctl(fd, HAX_VCPU_IOCTL_GET_MSRS, msrs);
+ }
+ return ret;
+}
+
+int hax_sync_vcpu_state(CPUArchState *env, struct vcpu_state_t *state, int set)
+{
+ int ret, fd;
+
+ fd = hax_vcpu_get_fd(env);
+ if (fd <= 0) {
+ return -1;
+ }
+
+ if (set) {
+ ret = ioctl(fd, HAX_VCPU_SET_REGS, state);
+ } else {
+ ret = ioctl(fd, HAX_VCPU_GET_REGS, state);
+ }
+ return ret;
+}
+
+int hax_inject_interrupt(CPUArchState *env, int vector)
+{
+ int fd;
+
+ fd = hax_vcpu_get_fd(env);
+ if (fd <= 0) {
+ return -1;
+ }
+
+ return ioctl(fd, HAX_VCPU_IOCTL_INTERRUPT, &vector);
+}
+
+void hax_kick_vcpu_thread(CPUState *cpu)
+{
+ /*
+ * FIXME: race condition with the exit_request check in
+ * hax_vcpu_hax_exec
+ */
+ cpu->exit_request = 1;
+ cpus_kick_thread(cpu);
+}
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