1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27/ 28/ Inline functions for the x64 kernel running on the hypervisor 29/ 30 31 .inline __hypercall0, 0 32 movq %rdi, %rax 33 syscall 34 .end 35 36 .inline __hypercall1, 0 37 movq %rdi, %rax 38 movq %rsi, %rdi / arg 1 39 syscall 40 .end 41 42 .inline __hypercall2, 0 43 movq %rdi, %rax 44 movq %rsi, %rdi / arg 1 45 movq %rdx, %rsi / arg 2 46 syscall 47 .end 48 49 .inline __hypercall3, 0 50 movq %rdi, %rax 51 movq %rsi, %rdi / arg 1 52 movq %rdx, %rsi / arg 2 53 movq %rcx, %rdx / arg 3 54 syscall 55 .end 56 57/* XXPV studio bug r10 is changed to eax by compiler */ 58 .inline __hypercall4_broken, 0 59 movq %rdi, %rax 60 movq %rsi, %rdi / arg 1 61 movq %rdx, %rsi / arg 2 62 movq %rcx, %rdx / arg 3 63 movq %r8, %r10 / r10 = 4th arg 64 syscall 65 .end 66 67 .inline __hypercall5_broken, 0 68 movq %rdi, %rax 69 movq %rsi, %rdi / arg 1 70 movq %rdx, %rsi / arg 2 71 movq %rcx, %rdx / arg 3 72 movq %r8, %r10 / r10 = 4th arg 73 movq %r9, %r8 / arg 5 74 syscall 75 .end 76 77/* 78 * Read the -real- TSC. 79 * This is difficult to virtualize on the hypervisor given there is 80 * no way to prevent preemption; thus this inline function 81 * should only be used in the middle of the paravirtualized 82 * implementation of tsc_read. 83 */ 84 .inline __rdtsc_insn, 0 85 rdtsc 86 shlq $32, %rdx 87 orq %rdx, %rax 88 .end 89 90/ 91/ prefetch 64 bytes 92/ 93 .inline prefetch64,8 94 prefetcht0 (%rdi) 95 prefetcht0 32(%rdi) 96 .end 97 98