[PATCH v5 1/4] Add the NVMM vcpu API

* [PATCH v5 1/4] Add the NVMM vcpu API
@ 2020-08-11 14:10 Kamil Rytarowski
  2020-08-11 14:10 ` [PATCH v5 2/4] Add the NetBSD Virtual Machine Monitor accelerator Kamil Rytarowski
                   ` (3 more replies)
  0 siblings, 4 replies; 8+ messages in thread
From: Kamil Rytarowski @ 2020-08-11 14:10 UTC (permalink / raw)
  To: rth, ehabkost, slp, pbonzini, peter.maydell, philmd, max, jmcneill
  Cc: Kamil Rytarowski, qemu-devel

From: Maxime Villard <max@m00nbsd.net>

Adds support for the NetBSD Virtual Machine Monitor (NVMM) stubs and
introduces the nvmm.h sysemu API for managing the vcpu scheduling and
management.

Signed-off-by: Maxime Villard <max@m00nbsd.net>
Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Jared McNeill <jmcneill@invisible.ca>
---
 accel/stubs/Makefile.objs |  1 +
 accel/stubs/nvmm-stub.c   | 43 +++++++++++++++++++++++++++++++++++++++
 include/sysemu/nvmm.h     | 35 +++++++++++++++++++++++++++++++
 3 files changed, 79 insertions(+)
 create mode 100644 accel/stubs/nvmm-stub.c
 create mode 100644 include/sysemu/nvmm.h

diff --git a/accel/stubs/Makefile.objs b/accel/stubs/Makefile.objs
index bbd14e71fb..38660a0b9b 100644
--- a/accel/stubs/Makefile.objs
+++ b/accel/stubs/Makefile.objs
@@ -1,6 +1,7 @@
 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_NVMM)) += nvmm-stub.o
 obj-$(call lnot,$(CONFIG_KVM))  += kvm-stub.o
 obj-$(call lnot,$(CONFIG_TCG))  += tcg-stub.o
 obj-$(call lnot,$(CONFIG_XEN))  += xen-stub.o
diff --git a/accel/stubs/nvmm-stub.c b/accel/stubs/nvmm-stub.c
new file mode 100644
index 0000000000..c2208b84a3
--- /dev/null
+++ b/accel/stubs/nvmm-stub.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2018-2019 Maxime Villard, All rights reserved.
+ *
+ * NetBSD Virtual Machine Monitor (NVMM) accelerator stub.
+ *
+ * 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/nvmm.h"
+
+int nvmm_init_vcpu(CPUState *cpu)
+{
+    return -1;
+}
+
+int nvmm_vcpu_exec(CPUState *cpu)
+{
+    return -1;
+}
+
+void nvmm_destroy_vcpu(CPUState *cpu)
+{
+}
+
+void nvmm_cpu_synchronize_state(CPUState *cpu)
+{
+}
+
+void nvmm_cpu_synchronize_post_reset(CPUState *cpu)
+{
+}
+
+void nvmm_cpu_synchronize_post_init(CPUState *cpu)
+{
+}
+
+void nvmm_cpu_synchronize_pre_loadvm(CPUState *cpu)
+{
+}
diff --git a/include/sysemu/nvmm.h b/include/sysemu/nvmm.h
new file mode 100644
index 0000000000..10496f3980
--- /dev/null
+++ b/include/sysemu/nvmm.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2018-2019 Maxime Villard, All rights reserved.
+ *
+ * NetBSD Virtual Machine Monitor (NVMM) accelerator support.
+ *
+ * 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_NVMM_H
+#define QEMU_NVMM_H
+
+#include "config-host.h"
+#include "qemu-common.h"
+
+int nvmm_init_vcpu(CPUState *);
+int nvmm_vcpu_exec(CPUState *);
+void nvmm_destroy_vcpu(CPUState *);
+
+void nvmm_cpu_synchronize_state(CPUState *);
+void nvmm_cpu_synchronize_post_reset(CPUState *);
+void nvmm_cpu_synchronize_post_init(CPUState *);
+void nvmm_cpu_synchronize_pre_loadvm(CPUState *);
+
+#ifdef CONFIG_NVMM
+
+int nvmm_enabled(void);
+
+#else /* CONFIG_NVMM */
+
+#define nvmm_enabled() (0)
+
+#endif /* CONFIG_NVMM */
+
+#endif /* CONFIG_NVMM */
--
2.28.0



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