freebsd-skq/sys/amd64/vmm/intel/vmx_genassym.c
Neel Natu eeefa4e4be Test for AST pending with interrupts disabled right before entering the guest.
If an IPI was delivered to this cpu before interrupts were disabled
then return right away via vmx_setjmp() with a return value of VMX_RETURN_AST.

Obtained from:	NetApp
2012-10-23 02:20:42 +00:00

90 lines
3.7 KiB
C

/*-
* Copyright (c) 2011 NetApp, Inc.
* 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 NETAPP, INC ``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 NETAPP, INC 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.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/assym.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/pmap.h>
#include <machine/vmm.h>
#include "vmx.h"
#include "vmx_cpufunc.h"
ASSYM(VMXCTX_TMPSTKTOP, offsetof(struct vmxctx, tmpstktop));
ASSYM(VMXCTX_GUEST_RDI, offsetof(struct vmxctx, guest_rdi));
ASSYM(VMXCTX_GUEST_RSI, offsetof(struct vmxctx, guest_rsi));
ASSYM(VMXCTX_GUEST_RDX, offsetof(struct vmxctx, guest_rdx));
ASSYM(VMXCTX_GUEST_RCX, offsetof(struct vmxctx, guest_rcx));
ASSYM(VMXCTX_GUEST_R8, offsetof(struct vmxctx, guest_r8));
ASSYM(VMXCTX_GUEST_R9, offsetof(struct vmxctx, guest_r9));
ASSYM(VMXCTX_GUEST_RAX, offsetof(struct vmxctx, guest_rax));
ASSYM(VMXCTX_GUEST_RBX, offsetof(struct vmxctx, guest_rbx));
ASSYM(VMXCTX_GUEST_RBP, offsetof(struct vmxctx, guest_rbp));
ASSYM(VMXCTX_GUEST_R10, offsetof(struct vmxctx, guest_r10));
ASSYM(VMXCTX_GUEST_R11, offsetof(struct vmxctx, guest_r11));
ASSYM(VMXCTX_GUEST_R12, offsetof(struct vmxctx, guest_r12));
ASSYM(VMXCTX_GUEST_R13, offsetof(struct vmxctx, guest_r13));
ASSYM(VMXCTX_GUEST_R14, offsetof(struct vmxctx, guest_r14));
ASSYM(VMXCTX_GUEST_R15, offsetof(struct vmxctx, guest_r15));
ASSYM(VMXCTX_GUEST_CR2, offsetof(struct vmxctx, guest_cr2));
ASSYM(VMXCTX_HOST_R15, offsetof(struct vmxctx, host_r15));
ASSYM(VMXCTX_HOST_R14, offsetof(struct vmxctx, host_r14));
ASSYM(VMXCTX_HOST_R13, offsetof(struct vmxctx, host_r13));
ASSYM(VMXCTX_HOST_R12, offsetof(struct vmxctx, host_r12));
ASSYM(VMXCTX_HOST_RBP, offsetof(struct vmxctx, host_rbp));
ASSYM(VMXCTX_HOST_RSP, offsetof(struct vmxctx, host_rsp));
ASSYM(VMXCTX_HOST_RBX, offsetof(struct vmxctx, host_rbx));
ASSYM(VMXCTX_HOST_RIP, offsetof(struct vmxctx, host_rip));
ASSYM(VMXCTX_LAUNCH_ERROR, offsetof(struct vmxctx, launch_error));
ASSYM(VM_SUCCESS, VM_SUCCESS);
ASSYM(VM_FAIL_INVALID, VM_FAIL_INVALID);
ASSYM(VM_FAIL_VALID, VM_FAIL_VALID);
ASSYM(VMX_RETURN_DIRECT, VMX_RETURN_DIRECT);
ASSYM(VMX_RETURN_LONGJMP, VMX_RETURN_LONGJMP);
ASSYM(VMX_RETURN_VMRESUME, VMX_RETURN_VMRESUME);
ASSYM(VMX_RETURN_VMLAUNCH, VMX_RETURN_VMLAUNCH);
ASSYM(VMX_RETURN_AST, VMX_RETURN_AST);
ASSYM(TDF_ASTPENDING, TDF_ASTPENDING);
ASSYM(TDF_NEEDRESCHED, TDF_NEEDRESCHED);
ASSYM(TD_FLAGS, offsetof(struct thread, td_flags));
ASSYM(PC_CURTHREAD, offsetof(struct pcpu, pc_curthread));