VPMU: Migrate vpmu files into public folders

Signed-off-by: Wei Wang <wei.wang2@amd.com>

1 files changed, 119 insertions, 0 deletions

diff --git a/xen/arch/x86/hvm/vpmu.c b/xen/arch/x86/hvm/vpmu.c
new file mode 100644
index 0000000000..ac2129106f
--- /dev/null
+++ b/xen/arch/x86/hvm/vpmu.c
@@ -0,0 +1,119 @@
+/*
+ * vpmu.c: PMU virtualization for HVM domain.
+ *
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Author: Haitao Shan <haitao.shan@intel.com>
+ */
+
+#include <xen/config.h>
+#include <xen/sched.h>
+#include <asm/regs.h>
+#include <asm/types.h>
+#include <asm/msr.h>
+#include <asm/hvm/support.h>
+#include <asm/hvm/vmx/vmx.h>
+#include <asm/hvm/vmx/vmcs.h>
+#include <public/sched.h>
+#include <public/hvm/save.h>
+#include <asm/hvm/vpmu.h>
+
+static int __read_mostly opt_vpmu_enabled;
+boolean_param("vpmu", opt_vpmu_enabled);
+
+int vpmu_do_wrmsr(struct cpu_user_regs *regs)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(current);
+
+    if ( vpmu->arch_vpmu_ops )
+        return vpmu->arch_vpmu_ops->do_wrmsr(regs);
+    return 0;
+}
+
+int vpmu_do_rdmsr(struct cpu_user_regs *regs)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(current);
+
+    if ( vpmu->arch_vpmu_ops )
+        return vpmu->arch_vpmu_ops->do_rdmsr(regs);
+    return 0;
+}
+
+int vpmu_do_interrupt(struct cpu_user_regs *regs)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(current);
+
+    if ( vpmu->arch_vpmu_ops )
+        return vpmu->arch_vpmu_ops->do_interrupt(regs);
+    return 0;
+}
+
+void vpmu_save(struct vcpu *v)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(v);
+
+    if ( vpmu->arch_vpmu_ops )
+        vpmu->arch_vpmu_ops->arch_vpmu_save(v);
+}
+
+void vpmu_load(struct vcpu *v)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(v);
+
+    if ( vpmu->arch_vpmu_ops )
+        vpmu->arch_vpmu_ops->arch_vpmu_load(v);
+}
+
+extern struct arch_vpmu_ops core2_vpmu_ops;
+void vpmu_initialise(struct vcpu *v)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(v);
+
+    if ( !opt_vpmu_enabled )
+        return;
+
+    if ( vpmu->flags & VPMU_CONTEXT_ALLOCATED )
+        vpmu_destroy(v);
+
+    if ( current_cpu_data.x86 == 6 )
+    {
+        switch ( current_cpu_data.x86_model )
+        {
+        case 15:
+        case 23:
+        case 26:
+        case 29:
+            vpmu->arch_vpmu_ops = &core2_vpmu_ops;
+            break;
+        }
+    }
+
+    if ( vpmu->arch_vpmu_ops != NULL )
+    {
+        vpmu->flags = 0;
+        vpmu->context = NULL;
+        vpmu->arch_vpmu_ops->arch_vpmu_initialise(v);
+    }
+}
+
+void vpmu_destroy(struct vcpu *v)
+{
+    struct vpmu_struct *vpmu = vcpu_vpmu(v);
+
+    if ( vpmu->arch_vpmu_ops )
+        vpmu->arch_vpmu_ops->arch_vpmu_destroy(v);
+}
+