mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-15 12:54:27 +00:00
d730cdea2a
Most of vmm.h is machine-independent. Simplify merging amd64 and arm64 vmm code by removing this machine-dependent routine from arm64's vmm.h. No functional change intended. Reviewed by: andrew Differential Revision: https://reviews.freebsd.org/D45557
361 lines
9.3 KiB
C
361 lines
9.3 KiB
C
/*
|
|
* Copyright (C) 2015 Mihai Carabas <mihai.carabas@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, 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#ifndef _VMM_H_
|
|
#define _VMM_H_
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/cpuset.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include "pte.h"
|
|
#include "pmap.h"
|
|
|
|
struct vcpu;
|
|
|
|
enum vm_suspend_how {
|
|
VM_SUSPEND_NONE,
|
|
VM_SUSPEND_RESET,
|
|
VM_SUSPEND_POWEROFF,
|
|
VM_SUSPEND_HALT,
|
|
VM_SUSPEND_LAST
|
|
};
|
|
|
|
/*
|
|
* Identifiers for architecturally defined registers.
|
|
*/
|
|
enum vm_reg_name {
|
|
VM_REG_GUEST_X0 = 0,
|
|
VM_REG_GUEST_X1,
|
|
VM_REG_GUEST_X2,
|
|
VM_REG_GUEST_X3,
|
|
VM_REG_GUEST_X4,
|
|
VM_REG_GUEST_X5,
|
|
VM_REG_GUEST_X6,
|
|
VM_REG_GUEST_X7,
|
|
VM_REG_GUEST_X8,
|
|
VM_REG_GUEST_X9,
|
|
VM_REG_GUEST_X10,
|
|
VM_REG_GUEST_X11,
|
|
VM_REG_GUEST_X12,
|
|
VM_REG_GUEST_X13,
|
|
VM_REG_GUEST_X14,
|
|
VM_REG_GUEST_X15,
|
|
VM_REG_GUEST_X16,
|
|
VM_REG_GUEST_X17,
|
|
VM_REG_GUEST_X18,
|
|
VM_REG_GUEST_X19,
|
|
VM_REG_GUEST_X20,
|
|
VM_REG_GUEST_X21,
|
|
VM_REG_GUEST_X22,
|
|
VM_REG_GUEST_X23,
|
|
VM_REG_GUEST_X24,
|
|
VM_REG_GUEST_X25,
|
|
VM_REG_GUEST_X26,
|
|
VM_REG_GUEST_X27,
|
|
VM_REG_GUEST_X28,
|
|
VM_REG_GUEST_X29,
|
|
VM_REG_GUEST_LR,
|
|
VM_REG_GUEST_SP,
|
|
VM_REG_GUEST_PC,
|
|
VM_REG_GUEST_CPSR,
|
|
|
|
VM_REG_GUEST_SCTLR_EL1,
|
|
VM_REG_GUEST_TTBR0_EL1,
|
|
VM_REG_GUEST_TTBR1_EL1,
|
|
VM_REG_GUEST_TCR_EL1,
|
|
VM_REG_GUEST_TCR2_EL1,
|
|
VM_REG_LAST
|
|
};
|
|
|
|
#define VM_INTINFO_VECTOR(info) ((info) & 0xff)
|
|
#define VM_INTINFO_DEL_ERRCODE 0x800
|
|
#define VM_INTINFO_RSVD 0x7ffff000
|
|
#define VM_INTINFO_VALID 0x80000000
|
|
#define VM_INTINFO_TYPE 0x700
|
|
#define VM_INTINFO_HWINTR (0 << 8)
|
|
#define VM_INTINFO_NMI (2 << 8)
|
|
#define VM_INTINFO_HWEXCEPTION (3 << 8)
|
|
#define VM_INTINFO_SWINTR (4 << 8)
|
|
|
|
#define VM_MAX_SUFFIXLEN 15
|
|
|
|
#define VM_GUEST_BASE_IPA 0x80000000UL /* Guest kernel start ipa */
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#define VM_MAX_NAMELEN 32
|
|
|
|
struct vm;
|
|
struct vm_exception;
|
|
struct vm_exit;
|
|
struct vm_run;
|
|
struct vm_object;
|
|
struct vm_guest_paging;
|
|
struct vm_vgic_descr;
|
|
struct pmap;
|
|
|
|
struct vm_eventinfo {
|
|
void *rptr; /* rendezvous cookie */
|
|
int *sptr; /* suspend cookie */
|
|
int *iptr; /* reqidle cookie */
|
|
};
|
|
|
|
int vm_create(const char *name, struct vm **retvm);
|
|
struct vcpu *vm_alloc_vcpu(struct vm *vm, int vcpuid);
|
|
void vm_disable_vcpu_creation(struct vm *vm);
|
|
void vm_slock_vcpus(struct vm *vm);
|
|
void vm_unlock_vcpus(struct vm *vm);
|
|
void vm_destroy(struct vm *vm);
|
|
int vm_reinit(struct vm *vm);
|
|
const char *vm_name(struct vm *vm);
|
|
|
|
/*
|
|
* APIs that modify the guest memory map require all vcpus to be frozen.
|
|
*/
|
|
void vm_slock_memsegs(struct vm *vm);
|
|
void vm_xlock_memsegs(struct vm *vm);
|
|
void vm_unlock_memsegs(struct vm *vm);
|
|
int vm_mmap_memseg(struct vm *vm, vm_paddr_t gpa, int segid, vm_ooffset_t off,
|
|
size_t len, int prot, int flags);
|
|
int vm_munmap_memseg(struct vm *vm, vm_paddr_t gpa, size_t len);
|
|
int vm_alloc_memseg(struct vm *vm, int ident, size_t len, bool sysmem);
|
|
void vm_free_memseg(struct vm *vm, int ident);
|
|
|
|
/*
|
|
* APIs that inspect the guest memory map require only a *single* vcpu to
|
|
* be frozen. This acts like a read lock on the guest memory map since any
|
|
* modification requires *all* vcpus to be frozen.
|
|
*/
|
|
int vm_mmap_getnext(struct vm *vm, vm_paddr_t *gpa, int *segid,
|
|
vm_ooffset_t *segoff, size_t *len, int *prot, int *flags);
|
|
int vm_get_memseg(struct vm *vm, int ident, size_t *len, bool *sysmem,
|
|
struct vm_object **objptr);
|
|
vm_paddr_t vmm_sysmem_maxaddr(struct vm *vm);
|
|
void *vm_gpa_hold(struct vcpu *vcpu, vm_paddr_t gpa, size_t len,
|
|
int prot, void **cookie);
|
|
void *vm_gpa_hold_global(struct vm *vm, vm_paddr_t gpa, size_t len,
|
|
int prot, void **cookie);
|
|
void vm_gpa_release(void *cookie);
|
|
bool vm_mem_allocated(struct vcpu *vcpu, vm_paddr_t gpa);
|
|
|
|
int vm_gla2gpa_nofault(struct vcpu *vcpu, struct vm_guest_paging *paging,
|
|
uint64_t gla, int prot, uint64_t *gpa, int *is_fault);
|
|
|
|
uint16_t vm_get_maxcpus(struct vm *vm);
|
|
void vm_get_topology(struct vm *vm, uint16_t *sockets, uint16_t *cores,
|
|
uint16_t *threads, uint16_t *maxcpus);
|
|
int vm_set_topology(struct vm *vm, uint16_t sockets, uint16_t cores,
|
|
uint16_t threads, uint16_t maxcpus);
|
|
int vm_get_register(struct vcpu *vcpu, int reg, uint64_t *retval);
|
|
int vm_set_register(struct vcpu *vcpu, int reg, uint64_t val);
|
|
int vm_run(struct vcpu *vcpu);
|
|
int vm_suspend(struct vm *vm, enum vm_suspend_how how);
|
|
void* vm_get_cookie(struct vm *vm);
|
|
int vcpu_vcpuid(struct vcpu *vcpu);
|
|
void *vcpu_get_cookie(struct vcpu *vcpu);
|
|
struct vm *vcpu_vm(struct vcpu *vcpu);
|
|
struct vcpu *vm_vcpu(struct vm *vm, int cpu);
|
|
int vm_get_capability(struct vcpu *vcpu, int type, int *val);
|
|
int vm_set_capability(struct vcpu *vcpu, int type, int val);
|
|
int vm_activate_cpu(struct vcpu *vcpu);
|
|
int vm_suspend_cpu(struct vm *vm, struct vcpu *vcpu);
|
|
int vm_resume_cpu(struct vm *vm, struct vcpu *vcpu);
|
|
int vm_inject_exception(struct vcpu *vcpu, uint64_t esr, uint64_t far);
|
|
int vm_attach_vgic(struct vm *vm, struct vm_vgic_descr *descr);
|
|
int vm_assert_irq(struct vm *vm, uint32_t irq);
|
|
int vm_deassert_irq(struct vm *vm, uint32_t irq);
|
|
int vm_raise_msi(struct vm *vm, uint64_t msg, uint64_t addr, int bus, int slot,
|
|
int func);
|
|
struct vm_exit *vm_exitinfo(struct vcpu *vcpu);
|
|
void vm_exit_suspended(struct vcpu *vcpu, uint64_t pc);
|
|
void vm_exit_debug(struct vcpu *vcpu, uint64_t pc);
|
|
void vm_exit_rendezvous(struct vcpu *vcpu, uint64_t pc);
|
|
void vm_exit_astpending(struct vcpu *vcpu, uint64_t pc);
|
|
|
|
cpuset_t vm_active_cpus(struct vm *vm);
|
|
cpuset_t vm_debug_cpus(struct vm *vm);
|
|
cpuset_t vm_suspended_cpus(struct vm *vm);
|
|
|
|
static __inline int
|
|
vcpu_rendezvous_pending(struct vm_eventinfo *info)
|
|
{
|
|
|
|
return (*((uintptr_t *)(info->rptr)) != 0);
|
|
}
|
|
|
|
static __inline int
|
|
vcpu_suspended(struct vm_eventinfo *info)
|
|
{
|
|
|
|
return (*info->sptr);
|
|
}
|
|
|
|
int vcpu_debugged(struct vcpu *vcpu);
|
|
|
|
enum vcpu_state {
|
|
VCPU_IDLE,
|
|
VCPU_FROZEN,
|
|
VCPU_RUNNING,
|
|
VCPU_SLEEPING,
|
|
};
|
|
|
|
int vcpu_set_state(struct vcpu *vcpu, enum vcpu_state state, bool from_idle);
|
|
enum vcpu_state vcpu_get_state(struct vcpu *vcpu, int *hostcpu);
|
|
|
|
static int __inline
|
|
vcpu_is_running(struct vcpu *vcpu, int *hostcpu)
|
|
{
|
|
return (vcpu_get_state(vcpu, hostcpu) == VCPU_RUNNING);
|
|
}
|
|
|
|
#ifdef _SYS_PROC_H_
|
|
static int __inline
|
|
vcpu_should_yield(struct vcpu *vcpu)
|
|
{
|
|
struct thread *td;
|
|
|
|
td = curthread;
|
|
return (td->td_ast != 0 || td->td_owepreempt != 0);
|
|
}
|
|
#endif
|
|
|
|
void *vcpu_stats(struct vcpu *vcpu);
|
|
void vcpu_notify_event(struct vcpu *vcpu);
|
|
|
|
enum vm_reg_name vm_segment_name(int seg_encoding);
|
|
|
|
struct vm_copyinfo {
|
|
uint64_t gpa;
|
|
size_t len;
|
|
void *hva;
|
|
void *cookie;
|
|
};
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#define VM_DIR_READ 0
|
|
#define VM_DIR_WRITE 1
|
|
|
|
#define VM_GP_M_MASK 0x1f
|
|
#define VM_GP_MMU_ENABLED (1 << 5)
|
|
|
|
struct vm_guest_paging {
|
|
uint64_t ttbr0_addr;
|
|
uint64_t ttbr1_addr;
|
|
uint64_t tcr_el1;
|
|
uint64_t tcr2_el1;
|
|
int flags;
|
|
int padding;
|
|
};
|
|
|
|
struct vie {
|
|
uint8_t access_size:4, sign_extend:1, dir:1, unused:2;
|
|
enum vm_reg_name reg;
|
|
};
|
|
|
|
struct vre {
|
|
uint32_t inst_syndrome;
|
|
uint8_t dir:1, unused:7;
|
|
enum vm_reg_name reg;
|
|
};
|
|
|
|
/*
|
|
* Identifiers for optional vmm capabilities
|
|
*/
|
|
enum vm_cap_type {
|
|
VM_CAP_HALT_EXIT,
|
|
VM_CAP_PAUSE_EXIT,
|
|
VM_CAP_UNRESTRICTED_GUEST,
|
|
VM_CAP_BRK_EXIT,
|
|
VM_CAP_SS_EXIT,
|
|
VM_CAP_MASK_HWINTR,
|
|
VM_CAP_MAX
|
|
};
|
|
|
|
enum vm_exitcode {
|
|
VM_EXITCODE_BOGUS,
|
|
VM_EXITCODE_INST_EMUL,
|
|
VM_EXITCODE_REG_EMUL,
|
|
VM_EXITCODE_HVC,
|
|
VM_EXITCODE_SUSPENDED,
|
|
VM_EXITCODE_HYP,
|
|
VM_EXITCODE_WFI,
|
|
VM_EXITCODE_PAGING,
|
|
VM_EXITCODE_SMCCC,
|
|
VM_EXITCODE_DEBUG,
|
|
VM_EXITCODE_BRK,
|
|
VM_EXITCODE_SS,
|
|
VM_EXITCODE_MAX
|
|
};
|
|
|
|
struct vm_exit {
|
|
enum vm_exitcode exitcode;
|
|
int inst_length;
|
|
uint64_t pc;
|
|
union {
|
|
/*
|
|
* ARM specific payload.
|
|
*/
|
|
struct {
|
|
uint32_t exception_nr;
|
|
uint32_t pad;
|
|
uint64_t esr_el2; /* Exception Syndrome Register */
|
|
uint64_t far_el2; /* Fault Address Register */
|
|
uint64_t hpfar_el2; /* Hypervisor IPA Fault Address Register */
|
|
} hyp;
|
|
struct {
|
|
struct vre vre;
|
|
} reg_emul;
|
|
struct {
|
|
uint64_t gpa;
|
|
uint64_t esr;
|
|
} paging;
|
|
struct {
|
|
uint64_t gpa;
|
|
struct vm_guest_paging paging;
|
|
struct vie vie;
|
|
} inst_emul;
|
|
|
|
/*
|
|
* A SMCCC call, e.g. starting a core via PSCI.
|
|
* Further arguments can be read by asking the kernel for
|
|
* all register values.
|
|
*/
|
|
struct {
|
|
uint64_t func_id;
|
|
uint64_t args[7];
|
|
} smccc_call;
|
|
|
|
struct {
|
|
enum vm_suspend_how how;
|
|
} suspended;
|
|
} u;
|
|
};
|
|
|
|
#endif /* _VMM_H_ */
|