Add the WHPX vcpu API

Adds support for the Windows Hypervisor Platform accelerator (WHPX) stubs and
introduces the whpx.h sysemu API for managing the vcpu scheduling and
management.

Signed-off-by: Justin Terry (VM) <[email protected]>
Message-Id: <1516655269[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>

diff --git a/accel/stubs/Makefile.objs b/accel/stubs/Makefile.objs
index 779343b0c02d7afed5c6a9bf037c34d8bed1810b..3894caf95da64d525c9cb6fabeab64e27e0a0bd2 100644 (file)
--- a/accel/stubs/Makefile.objs
+++ b/accel/stubs/Makefile.objs
@@ -1,4 +1,5 @@
-obj-$(call lnot,$(CONFIG_HAX)) += hax-stub.o
-obj-$(call lnot,$(CONFIG_HVF)) += hvf-stub.o
-obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
-obj-$(call lnot,$(CONFIG_TCG)) += tcg-stub.o
+obj-$(call lnot,$(CONFIG_HAX))  += hax-stub.o
+obj-$(call lnot,$(CONFIG_HVF))  += hvf-stub.o
+obj-$(call lnot,$(CONFIG_WHPX)) += whpx-stub.o
+obj-$(call lnot,$(CONFIG_KVM))  += kvm-stub.o
+obj-$(call lnot,$(CONFIG_TCG))  += tcg-stub.o

diff --git a/accel/stubs/whpx-stub.c b/accel/stubs/whpx-stub.c
new file mode 100644 (file)
index 0000000..5fb049c
--- /dev/null
+++ b/accel/stubs/whpx-stub.c
@@ -0,0 +1,48 @@
+/*
+ * QEMU Windows Hypervisor Platform accelerator (WHPX) stub
+ *
+ * Copyright Microsoft Corp. 2017
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "sysemu/whpx.h"
+
+int whpx_init_vcpu(CPUState *cpu)
+{
+    return -1;
+}
+
+int whpx_vcpu_exec(CPUState *cpu)
+{
+    return -1;
+}
+
+void whpx_destroy_vcpu(CPUState *cpu)
+{
+}
+
+void whpx_vcpu_kick(CPUState *cpu)
+{
+}
+
+void whpx_cpu_synchronize_state(CPUState *cpu)
+{
+}
+
+void whpx_cpu_synchronize_post_reset(CPUState *cpu)
+{
+}
+
+void whpx_cpu_synchronize_post_init(CPUState *cpu)
+{
+}
+
+void whpx_cpu_synchronize_pre_loadvm(CPUState *cpu)
+{
+}

diff --git a/include/sysemu/whpx.h b/include/sysemu/whpx.h
new file mode 100644 (file)
index 0000000..89592ae
--- /dev/null
+++ b/include/sysemu/whpx.h
@@ -0,0 +1,40 @@
+/*
+ * QEMU Windows Hypervisor Platform accelerator (WHPX) support
+ *
+ * Copyright Microsoft, Corp. 2017
+ *
+ * Authors:
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_WHPX_H
+#define QEMU_WHPX_H
+
+#include "config-host.h"
+#include "qemu-common.h"
+
+int whpx_init_vcpu(CPUState *cpu);
+int whpx_vcpu_exec(CPUState *cpu);
+void whpx_destroy_vcpu(CPUState *cpu);
+void whpx_vcpu_kick(CPUState *cpu);
+
+
+void whpx_cpu_synchronize_state(CPUState *cpu);
+void whpx_cpu_synchronize_post_reset(CPUState *cpu);
+void whpx_cpu_synchronize_post_init(CPUState *cpu);
+void whpx_cpu_synchronize_pre_loadvm(CPUState *cpu);
+
+#ifdef CONFIG_WHPX
+
+int whpx_enabled(void);
+
+#else /* CONFIG_WHPX */
+
+#define whpx_enabled() (0)
+
+#endif /* CONFIG_WHPX */
+
+#endif /* QEMU_WHPX_H */