[RFC PATCH 18/19] accel/hvf: Declare and allocate AccelvCPUState struct

[Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>]

In preparation of moving HVF-specific fields from CPUState
to the accelerator-specific AccelvCPUState structure, first
declare it empty and allocate it. This will make the following
commits easier to review.

Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
---
 target/i386/hvf/hvf-i386.h | 3 +++
 target/i386/hvf/hvf.c      | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/i386/hvf/hvf-i386.h b/target/i386/hvf/hvf-i386.h
index 59cfca8875e..1f12eb647a0 100644
--- a/target/i386/hvf/hvf-i386.h
+++ b/target/i386/hvf/hvf-i386.h
@@ -51,6 +51,9 @@ struct HVFState {
 };
 extern HVFState *hvf_state;
 
+struct AccelvCPUState {
+};
+
 void hvf_set_phys_mem(MemoryRegionSection *, bool);
 void hvf_handle_io(CPUArchState *, uint16_t, void *, int, int, int);
 hvf_slot *hvf_find_overlap_slot(uint64_t, uint64_t);
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index effee39ee9b..342659f1e15 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -451,6 +451,7 @@ void hvf_vcpu_destroy(CPUState *cpu)
     hv_return_t ret = hv_vcpu_destroy((hv_vcpuid_t)cpu->hvf_fd);
     g_free(env->hvf_mmio_buf);
     assert_hvf_ok(ret);
+    g_free(cpu->accel_vcpu);
 }
 
 static void dummy_signal(int sig)
@@ -534,9 +535,10 @@ int hvf_init_vcpu(CPUState *cpu)
     }
 
     r = hv_vcpu_create(&hvf_fd, HV_VCPU_DEFAULT);
-    cpu->vcpu_dirty = true;
     assert_hvf_ok(r);
+    cpu->accel_vcpu = g_new(struct AccelvCPUState, 1);
     cpu->hvf_fd = (int)hvf_fd
+    cpu->vcpu_dirty = true;
 
     if (hv_vmx_read_capability(HV_VMX_CAP_PINBASED,
         &hvf_state->hvf_caps->vmx_cap_pinbased)) {
-- 
2.26.2