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-rw-r--r--include/asm-powerpc/kvm.h53
-rw-r--r--include/asm-powerpc/kvm_asm.h55
-rw-r--r--include/asm-powerpc/kvm_host.h152
-rw-r--r--include/asm-powerpc/kvm_para.h37
-rw-r--r--include/asm-powerpc/kvm_ppc.h88
5 files changed, 383 insertions, 2 deletions
diff --git a/include/asm-powerpc/kvm.h b/include/asm-powerpc/kvm.h
index d1b530fbf8d..f993e4198d5 100644
--- a/include/asm-powerpc/kvm.h
+++ b/include/asm-powerpc/kvm.h
@@ -1,6 +1,55 @@
+/*
+ * 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 IBM Corp. 2007
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
#ifndef __LINUX_KVM_POWERPC_H
#define __LINUX_KVM_POWERPC_H
-/* powerpc does not support KVM */
+#include <asm/types.h>
+
+struct kvm_regs {
+ __u64 pc;
+ __u64 cr;
+ __u64 ctr;
+ __u64 lr;
+ __u64 xer;
+ __u64 msr;
+ __u64 srr0;
+ __u64 srr1;
+ __u64 pid;
+
+ __u64 sprg0;
+ __u64 sprg1;
+ __u64 sprg2;
+ __u64 sprg3;
+ __u64 sprg4;
+ __u64 sprg5;
+ __u64 sprg6;
+ __u64 sprg7;
+
+ __u64 gpr[32];
+};
+
+struct kvm_sregs {
+};
+
+struct kvm_fpu {
+ __u64 fpr[32];
+};
-#endif
+#endif /* __LINUX_KVM_POWERPC_H */
diff --git a/include/asm-powerpc/kvm_asm.h b/include/asm-powerpc/kvm_asm.h
new file mode 100644
index 00000000000..2197764796d
--- /dev/null
+++ b/include/asm-powerpc/kvm_asm.h
@@ -0,0 +1,55 @@
+/*
+ * 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 IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __POWERPC_KVM_ASM_H__
+#define __POWERPC_KVM_ASM_H__
+
+/* IVPR must be 64KiB-aligned. */
+#define VCPU_SIZE_ORDER 4
+#define VCPU_SIZE_LOG (VCPU_SIZE_ORDER + 12)
+#define VCPU_TLB_PGSZ PPC44x_TLB_64K
+#define VCPU_SIZE_BYTES (1<<VCPU_SIZE_LOG)
+
+#define BOOKE_INTERRUPT_CRITICAL 0
+#define BOOKE_INTERRUPT_MACHINE_CHECK 1
+#define BOOKE_INTERRUPT_DATA_STORAGE 2
+#define BOOKE_INTERRUPT_INST_STORAGE 3
+#define BOOKE_INTERRUPT_EXTERNAL 4
+#define BOOKE_INTERRUPT_ALIGNMENT 5
+#define BOOKE_INTERRUPT_PROGRAM 6
+#define BOOKE_INTERRUPT_FP_UNAVAIL 7
+#define BOOKE_INTERRUPT_SYSCALL 8
+#define BOOKE_INTERRUPT_AP_UNAVAIL 9
+#define BOOKE_INTERRUPT_DECREMENTER 10
+#define BOOKE_INTERRUPT_FIT 11
+#define BOOKE_INTERRUPT_WATCHDOG 12
+#define BOOKE_INTERRUPT_DTLB_MISS 13
+#define BOOKE_INTERRUPT_ITLB_MISS 14
+#define BOOKE_INTERRUPT_DEBUG 15
+#define BOOKE_MAX_INTERRUPT 15
+
+#define RESUME_FLAG_NV (1<<0) /* Reload guest nonvolatile state? */
+#define RESUME_FLAG_HOST (1<<1) /* Resume host? */
+
+#define RESUME_GUEST 0
+#define RESUME_GUEST_NV RESUME_FLAG_NV
+#define RESUME_HOST RESUME_FLAG_HOST
+#define RESUME_HOST_NV (RESUME_FLAG_HOST|RESUME_FLAG_NV)
+
+#endif /* __POWERPC_KVM_ASM_H__ */
diff --git a/include/asm-powerpc/kvm_host.h b/include/asm-powerpc/kvm_host.h
new file mode 100644
index 00000000000..04ffbb8e0a3
--- /dev/null
+++ b/include/asm-powerpc/kvm_host.h
@@ -0,0 +1,152 @@
+/*
+ * 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 IBM Corp. 2007
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __POWERPC_KVM_HOST_H__
+#define __POWERPC_KVM_HOST_H__
+
+#include <linux/mutex.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/kvm_types.h>
+#include <asm/kvm_asm.h>
+
+#define KVM_MAX_VCPUS 1
+#define KVM_MEMORY_SLOTS 32
+/* memory slots that does not exposed to userspace */
+#define KVM_PRIVATE_MEM_SLOTS 4
+
+/* We don't currently support large pages. */
+#define KVM_PAGES_PER_HPAGE (1<<31)
+
+struct kvm;
+struct kvm_run;
+struct kvm_vcpu;
+
+struct kvm_vm_stat {
+ u32 remote_tlb_flush;
+};
+
+struct kvm_vcpu_stat {
+ u32 sum_exits;
+ u32 mmio_exits;
+ u32 dcr_exits;
+ u32 signal_exits;
+ u32 light_exits;
+ /* Account for special types of light exits: */
+ u32 itlb_real_miss_exits;
+ u32 itlb_virt_miss_exits;
+ u32 dtlb_real_miss_exits;
+ u32 dtlb_virt_miss_exits;
+ u32 syscall_exits;
+ u32 isi_exits;
+ u32 dsi_exits;
+ u32 emulated_inst_exits;
+ u32 dec_exits;
+ u32 ext_intr_exits;
+};
+
+struct tlbe {
+ u32 tid; /* Only the low 8 bits are used. */
+ u32 word0;
+ u32 word1;
+ u32 word2;
+};
+
+struct kvm_arch {
+};
+
+struct kvm_vcpu_arch {
+ /* Unmodified copy of the guest's TLB. */
+ struct tlbe guest_tlb[PPC44x_TLB_SIZE];
+ /* TLB that's actually used when the guest is running. */
+ struct tlbe shadow_tlb[PPC44x_TLB_SIZE];
+ /* Pages which are referenced in the shadow TLB. */
+ struct page *shadow_pages[PPC44x_TLB_SIZE];
+ /* Copy of the host's TLB. */
+ struct tlbe host_tlb[PPC44x_TLB_SIZE];
+
+ u32 host_stack;
+ u32 host_pid;
+
+ u64 fpr[32];
+ u32 gpr[32];
+
+ u32 pc;
+ u32 cr;
+ u32 ctr;
+ u32 lr;
+ u32 xer;
+
+ u32 msr;
+ u32 mmucr;
+ u32 sprg0;
+ u32 sprg1;
+ u32 sprg2;
+ u32 sprg3;
+ u32 sprg4;
+ u32 sprg5;
+ u32 sprg6;
+ u32 sprg7;
+ u32 srr0;
+ u32 srr1;
+ u32 csrr0;
+ u32 csrr1;
+ u32 dsrr0;
+ u32 dsrr1;
+ u32 dear;
+ u32 esr;
+ u32 dec;
+ u32 decar;
+ u32 tbl;
+ u32 tbu;
+ u32 tcr;
+ u32 tsr;
+ u32 ivor[16];
+ u32 ivpr;
+ u32 pir;
+ u32 pid;
+ u32 pvr;
+ u32 ccr0;
+ u32 ccr1;
+ u32 dbcr0;
+ u32 dbcr1;
+
+ u32 last_inst;
+ u32 fault_dear;
+ u32 fault_esr;
+ gpa_t paddr_accessed;
+
+ u8 io_gpr; /* GPR used as IO source/target */
+ u8 mmio_is_bigendian;
+ u8 dcr_needed;
+ u8 dcr_is_write;
+
+ u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
+
+ struct timer_list dec_timer;
+ unsigned long pending_exceptions;
+};
+
+struct kvm_guest_debug {
+ int enabled;
+ unsigned long bp[4];
+ int singlestep;
+};
+
+#endif /* __POWERPC_KVM_HOST_H__ */
diff --git a/include/asm-powerpc/kvm_para.h b/include/asm-powerpc/kvm_para.h
new file mode 100644
index 00000000000..2d48f6a63d0
--- /dev/null
+++ b/include/asm-powerpc/kvm_para.h
@@ -0,0 +1,37 @@
+/*
+ * 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 IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __POWERPC_KVM_PARA_H__
+#define __POWERPC_KVM_PARA_H__
+
+#ifdef __KERNEL__
+
+static inline int kvm_para_available(void)
+{
+ return 0;
+}
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+ return 0;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __POWERPC_KVM_PARA_H__ */
diff --git a/include/asm-powerpc/kvm_ppc.h b/include/asm-powerpc/kvm_ppc.h
new file mode 100644
index 00000000000..7ac820308a7
--- /dev/null
+++ b/include/asm-powerpc/kvm_ppc.h
@@ -0,0 +1,88 @@
+/*
+ * 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 IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __POWERPC_KVM_PPC_H__
+#define __POWERPC_KVM_PPC_H__
+
+/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
+ * dependencies. */
+
+#include <linux/mutex.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/kvm_types.h>
+#include <linux/kvm_host.h>
+
+struct kvm_tlb {
+ struct tlbe guest_tlb[PPC44x_TLB_SIZE];
+ struct tlbe shadow_tlb[PPC44x_TLB_SIZE];
+};
+
+enum emulation_result {
+ EMULATE_DONE, /* no further processing */
+ EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
+ EMULATE_DO_DCR, /* kvm_run filled with DCR request */
+ EMULATE_FAIL, /* can't emulate this instruction */
+};
+
+extern const unsigned char exception_priority[];
+extern const unsigned char priority_exception[];
+
+extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
+extern char kvmppc_handlers_start[];
+extern unsigned long kvmppc_handler_len;
+
+extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
+extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int rt, unsigned int bytes,
+ int is_bigendian);
+extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ u32 val, unsigned int bytes, int is_bigendian);
+
+extern int kvmppc_emulate_instruction(struct kvm_run *run,
+ struct kvm_vcpu *vcpu);
+
+extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn,
+ u64 asid, u32 flags);
+extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid);
+extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
+
+extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu);
+
+static inline void kvmppc_queue_exception(struct kvm_vcpu *vcpu, int exception)
+{
+ unsigned int priority = exception_priority[exception];
+ set_bit(priority, &vcpu->arch.pending_exceptions);
+}
+
+static inline void kvmppc_clear_exception(struct kvm_vcpu *vcpu, int exception)
+{
+ unsigned int priority = exception_priority[exception];
+ clear_bit(priority, &vcpu->arch.pending_exceptions);
+}
+
+static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
+{
+ if ((new_msr & MSR_PR) != (vcpu->arch.msr & MSR_PR))
+ kvmppc_mmu_priv_switch(vcpu, new_msr & MSR_PR);
+
+ vcpu->arch.msr = new_msr;
+}
+
+#endif /* __POWERPC_KVM_PPC_H__ */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-17 19:53:50 +0000