3d4a180923
When the guest is bringing up the APs in the x2APIC mode a write to the ICR register will now trigger a return to userspace with an exitcode of VM_EXITCODE_SPINUP_AP. This gets SMP guests working again with x2APIC. Change the vlapic timer lock to be a spinlock because the vlapic can be accessed from within a critical section (vm run loop) when guest is using x2apic mode. Reviewed by: grehan@
45 lines
1.8 KiB
C
45 lines
1.8 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 _VMM_MSR_H_
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#define _VMM_MSR_H_
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#define VMM_MSR_NUM 16
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struct vm;
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void vmm_msr_init(void);
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int emulate_wrmsr(struct vm *vm, int vcpu, u_int msr, uint64_t val,
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bool *retu);
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int emulate_rdmsr(struct vm *vm, int vcpu, u_int msr, bool *retu);
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void guest_msrs_init(struct vm *vm, int cpu);
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void guest_msr_valid(int msr);
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void restore_host_msrs(struct vm *vm, int cpu);
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void restore_guest_msrs(struct vm *vm, int cpu);
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#endif
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