3a9eeaa765
Prior to this change pinning was implemented via an ioctl (VM_SET_PINNING) that called 'sched_bind()' on behalf of the user thread. The ULE implementation of 'sched_bind()' bumps up 'td_pinned' which in turn runs afoul of the assertion '(td_pinned == 0)' in userret(). Using the cpuset affinity to implement pinning of the vcpu threads works with both 4BSD and ULE schedulers and has the happy side-effect of getting rid of a bunch of code in vmm.ko. Discussed with: grehan
104 lines
4.4 KiB
C
104 lines
4.4 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VMMAPI_H_
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#define _VMMAPI_H_
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struct vmctx;
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enum x2apic_state;
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int vm_create(const char *name);
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struct vmctx *vm_open(const char *name);
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void vm_destroy(struct vmctx *ctx);
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size_t vmm_get_mem_total(void);
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size_t vmm_get_mem_free(void);
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int vm_get_memory_seg(struct vmctx *ctx, vm_paddr_t gpa, size_t *ret_len);
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/*
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* Create a memory segment of 'len' bytes in the guest physical address space
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* at offset 'gpa'.
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*
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* If 'mapaddr' is not NULL then this region is mmap'ed into the address
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* space of the calling process. If there is an mmap error then *mapaddr
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* will be set to MAP_FAILED.
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*/
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int vm_setup_memory(struct vmctx *ctx, vm_paddr_t gpa, size_t len,
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char **mapaddr);
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char * vm_map_memory(struct vmctx *ctx, vm_paddr_t gpa, size_t len);
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int vm_set_desc(struct vmctx *ctx, int vcpu, int reg,
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uint64_t base, uint32_t limit, uint32_t access);
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int vm_get_desc(struct vmctx *ctx, int vcpu, int reg,
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uint64_t *base, uint32_t *limit, uint32_t *access);
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int vm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val);
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int vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval);
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int vm_run(struct vmctx *ctx, int vcpu, uint64_t rip,
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struct vm_exit *ret_vmexit);
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int vm_apicid2vcpu(struct vmctx *ctx, int apicid);
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int vm_inject_event(struct vmctx *ctx, int vcpu, enum vm_event_type type,
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int vector);
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int vm_inject_event2(struct vmctx *ctx, int vcpu, enum vm_event_type type,
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int vector, int error_code);
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int vm_lapic_irq(struct vmctx *ctx, int vcpu, int vector);
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int vm_inject_nmi(struct vmctx *ctx, int vcpu);
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int vm_capability_name2type(const char *capname);
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const char *vm_capability_type2name(int type);
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int vm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
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int *retval);
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int vm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
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int val);
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int vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
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int vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
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int vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
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vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
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int vm_setup_msi(struct vmctx *ctx, int vcpu, int bus, int slot, int func,
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int dest, int vector, int numvec);
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int vm_setup_msix(struct vmctx *ctx, int vcpu, int bus, int slot, int func,
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int idx, uint32_t msg, uint32_t vector_control, uint64_t addr);
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/*
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* Return a pointer to the statistics buffer. Note that this is not MT-safe.
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*/
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uint64_t *vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv,
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int *ret_entries);
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const char *vm_get_stat_desc(struct vmctx *ctx, int index);
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int vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *s);
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int vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state s);
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/* Reset vcpu register state */
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int vcpu_reset(struct vmctx *ctx, int vcpu);
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/*
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* FreeBSD specific APIs
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*/
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int vm_setup_freebsd_registers(struct vmctx *ctx, int vcpu,
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uint64_t rip, uint64_t cr3, uint64_t gdtbase,
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uint64_t rsp);
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void vm_setup_freebsd_gdt(uint64_t *gdtr);
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#endif /* _VMMAPI_H_ */
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