1 files changed, 113 insertions, 0 deletions
diff --git a/sys/amd64/vmm/amd/svm_softc.h b/sys/amd64/vmm/amd/svm_softc.h
new file mode 100644
index 0000000..a5bb57c
--- /dev/null
+++ b/sys/amd64/vmm/amd/svm_softc.h
@@ -0,0 +1,113 @@
+/*-
+ * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice unmodified, this list of conditions, and the following
+ *    disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _SVM_SOFTC_H_
+#define _SVM_SOFTC_H_
+
+#define SVM_IO_BITMAP_SIZE	(3 * PAGE_SIZE)
+#define SVM_MSR_BITMAP_SIZE	(2 * PAGE_SIZE)
+
+struct asid {
+	uint64_t	gen;	/* range is [1, ~0UL] */
+	uint32_t	num;	/* range is [1, nasid - 1] */
+};
+
+/*
+ * XXX separate out 'struct vmcb' from 'svm_vcpu' to avoid wasting space
+ * due to VMCB alignment requirements.
+ */
+struct svm_vcpu {
+	struct vmcb	vmcb;	 /* hardware saved vcpu context */
+	struct svm_regctx swctx; /* software saved vcpu context */
+	uint64_t	vmcb_pa; /* VMCB physical address */
+        int		lastcpu; /* host cpu that the vcpu last ran on */
+	uint32_t	dirty;	 /* state cache bits that must be cleared */
+	long		eptgen;	 /* pmap->pm_eptgen when the vcpu last ran */
+	struct asid	asid;
+} __aligned(PAGE_SIZE);
+
+/*
+ * SVM softc, one per virtual machine.
+ */
+struct svm_softc {
+	uint8_t iopm_bitmap[SVM_IO_BITMAP_SIZE];    /* shared by all vcpus */
+	uint8_t msr_bitmap[SVM_MSR_BITMAP_SIZE];    /* shared by all vcpus */
+	uint8_t apic_page[VM_MAXCPU][PAGE_SIZE];
+	struct svm_vcpu vcpu[VM_MAXCPU];
+	vm_offset_t 	nptp;			    /* nested page table */
+	struct vm	*vm;
+} __aligned(PAGE_SIZE);
+
+CTASSERT((offsetof(struct svm_softc, nptp) & PAGE_MASK) == 0);
+
+static __inline struct svm_vcpu *
+svm_get_vcpu(struct svm_softc *sc, int vcpu)
+{
+
+	return (&(sc->vcpu[vcpu]));
+}
+
+static __inline struct vmcb *
+svm_get_vmcb(struct svm_softc *sc, int vcpu)
+{
+
+	return (&(sc->vcpu[vcpu].vmcb));
+}
+
+static __inline struct vmcb_state *
+svm_get_vmcb_state(struct svm_softc *sc, int vcpu)
+{
+
+	return (&(sc->vcpu[vcpu].vmcb.state));
+}
+
+static __inline struct vmcb_ctrl *
+svm_get_vmcb_ctrl(struct svm_softc *sc, int vcpu)
+{
+
+	return (&(sc->vcpu[vcpu].vmcb.ctrl));
+}
+
+static __inline struct svm_regctx *
+svm_get_guest_regctx(struct svm_softc *sc, int vcpu)
+{
+
+	return (&(sc->vcpu[vcpu].swctx));
+}
+
+static __inline void
+svm_set_dirty(struct svm_softc *sc, int vcpu, uint32_t dirtybits)
+{
+        struct svm_vcpu *vcpustate;
+
+        vcpustate = svm_get_vcpu(sc, vcpu);
+
+        vcpustate->dirty |= dirtybits;
+}
+
+#endif /* _SVM_SOFTC_H_ */