Initial import

1 files changed, 148 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
new file mode 100644
index 000000000..5bdfb5dd3
--- /dev/null
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -0,0 +1,148 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright SUSE Linux Products GmbH 2009
+ *
+ * Authors: Alexander Graf <agraf@suse.de>
+ */
+
+#ifndef __ASM_KVM_BOOK3S_ASM_H__
+#define __ASM_KVM_BOOK3S_ASM_H__
+
+/* XICS ICP register offsets */
+#define XICS_XIRR		4
+#define XICS_MFRR		0xc
+#define XICS_IPI		2	/* interrupt source # for IPIs */
+
+#ifdef __ASSEMBLY__
+
+#ifdef CONFIG_KVM_BOOK3S_HANDLER
+
+#include <asm/kvm_asm.h>
+
+.macro DO_KVM intno
+	.if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
+	    (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
+	    (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
+	    (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
+	    (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
+	    (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
+	    (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
+	    (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
+	    (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
+	    (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
+	    (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
+	    (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
+	    (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
+	    (\intno == BOOK3S_INTERRUPT_TRACE) || \
+	    (\intno == BOOK3S_INTERRUPT_PERFMON) || \
+	    (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
+	    (\intno == BOOK3S_INTERRUPT_VSX)
+
+	b	kvmppc_trampoline_\intno
+kvmppc_resume_\intno:
+
+	.endif
+.endm
+
+#else
+
+.macro DO_KVM intno
+.endm
+
+#endif /* CONFIG_KVM_BOOK3S_HANDLER */
+
+#else  /*__ASSEMBLY__ */
+
+/*
+ * This struct goes in the PACA on 64-bit processors.  It is used
+ * to store host state that needs to be saved when we enter a guest
+ * and restored when we exit, but isn't specific to any particular
+ * guest or vcpu.  It also has some scratch fields used by the guest
+ * exit code.
+ */
+struct kvmppc_host_state {
+	ulong host_r1;
+	ulong host_r2;
+	ulong host_msr;
+	ulong vmhandler;
+	ulong scratch0;
+	ulong scratch1;
+	ulong scratch2;
+	u8 in_guest;
+	u8 restore_hid5;
+	u8 napping;
+
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	u8 hwthread_req;
+	u8 hwthread_state;
+	u8 host_ipi;
+	u8 ptid;
+	struct kvm_vcpu *kvm_vcpu;
+	struct kvmppc_vcore *kvm_vcore;
+	unsigned long xics_phys;
+	u32 saved_xirr;
+	u64 dabr;
+	u64 host_mmcr[7];	/* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
+	u32 host_pmc[8];
+	u64 host_purr;
+	u64 host_spurr;
+	u64 host_dscr;
+	u64 dec_expires;
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
+	u64 cfar;
+	u64 ppr;
+	u64 host_fscr;
+#endif
+};
+
+struct kvmppc_book3s_shadow_vcpu {
+	bool in_use;
+	ulong gpr[14];
+	u32 cr;
+	u32 xer;
+	ulong ctr;
+	ulong lr;
+	ulong pc;
+
+	ulong shadow_srr1;
+	ulong fault_dar;
+	u32 fault_dsisr;
+	u32 last_inst;
+
+#ifdef CONFIG_PPC_BOOK3S_32
+	u32     sr[16];			/* Guest SRs */
+
+	struct kvmppc_host_state hstate;
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_64
+	u8 slb_max;			/* highest used guest slb entry */
+	struct  {
+		u64     esid;
+		u64     vsid;
+	} slb[64];			/* guest SLB */
+	u64 shadow_fscr;
+#endif
+};
+
+#endif /*__ASSEMBLY__ */
+
+/* Values for kvm_state */
+#define KVM_HWTHREAD_IN_KERNEL	0
+#define KVM_HWTHREAD_IN_NAP	1
+#define KVM_HWTHREAD_IN_KVM	2
+
+#endif /* __ASM_KVM_BOOK3S_ASM_H__ */