[v7,3/4] Add NVMM accelerator: acceleration enlightenments

Commit Message

Reinoud Zandijk April 2, 2021, 8:25 p.m. UTC

Signed-off-by: Kamil Rytarowski <[e-mail]>
Signed-off-by: Reinoud Zandijk <[e-mail]>

---
 include/sysemu/hw_accel.h |  1 +
 include/sysemu/nvmm.h     | 26 ++++++++++++++++++++++++++
 target/i386/helper.c      |  2 +-
 3 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 include/sysemu/nvmm.h

Patch

diff --git a/include/sysemu/hw_accel.h b/include/sysemu/hw_accel.h
index 61672f9b32..01b5ebf442 100644
--- a/include/sysemu/hw_accel.h
+++ b/include/sysemu/hw_accel.h
@@ -16,6 +16,7 @@ 
 #include "sysemu/kvm.h"
 #include "sysemu/hvf.h"
 #include "sysemu/whpx.h"
+#include "sysemu/nvmm.h"
 
 void cpu_synchronize_state(CPUState *cpu);
 void cpu_synchronize_post_reset(CPUState *cpu);
diff --git a/include/sysemu/nvmm.h b/include/sysemu/nvmm.h
new file mode 100644
index 0000000000..6d216599b0
--- /dev/null
+++ b/include/sysemu/nvmm.h
@@ -0,0 +1,26 @@ 
+/*
+ * 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"
+
+#ifdef CONFIG_NVMM
+
+int nvmm_enabled(void);
+
+#else /* CONFIG_NVMM */
+
+#define nvmm_enabled() (0)
+
+#endif /* CONFIG_NVMM */
+
+#endif /* CONFIG_NVMM */
diff --git a/target/i386/helper.c b/target/i386/helper.c
index 618ad1c409..8c180b5b2b 100644
--- a/target/i386/helper.c
+++ b/target/i386/helper.c
@@ -495,7 +495,7 @@  void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
     X86CPU *cpu = env_archcpu(env);
     CPUState *cs = env_cpu(env);
 
-    if (kvm_enabled() || whpx_enabled()) {
+    if (kvm_enabled() || whpx_enabled() || nvmm_enabled()) {
         env->tpr_access_type = access;
 
         cpu_interrupt(cs, CPU_INTERRUPT_TPR);