mirror of https://gitee.com/openkylin/linux.git
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
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/*
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* Copyright (C) 2010 SUSE Linux Products GmbH. All rights reserved.
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*
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* Authors:
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* Alexander Graf <agraf@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <linux/kvm_host.h>
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#include <linux/init.h>
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#include <linux/kvm_para.h>
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#include <linux/slab.h>
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#include <linux/of.h>
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#include <asm/reg.h>
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#include <asm/kvm_ppc.h>
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#include <asm/sections.h>
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#include <asm/cacheflush.h>
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#include <asm/disassemble.h>
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unsigned long kvm_hypercall(unsigned long *in,
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unsigned long *out,
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unsigned long nr)
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{
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unsigned long register r0 asm("r0");
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unsigned long register r3 asm("r3") = in[0];
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unsigned long register r4 asm("r4") = in[1];
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unsigned long register r5 asm("r5") = in[2];
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unsigned long register r6 asm("r6") = in[3];
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unsigned long register r7 asm("r7") = in[4];
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unsigned long register r8 asm("r8") = in[5];
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unsigned long register r9 asm("r9") = in[6];
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unsigned long register r10 asm("r10") = in[7];
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unsigned long register r11 asm("r11") = nr;
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unsigned long register r12 asm("r12");
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asm volatile("bl kvm_hypercall_start"
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: "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6),
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"=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11),
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"=r"(r12)
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: "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "r"(r8),
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"r"(r9), "r"(r10), "r"(r11)
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: "memory", "cc", "xer", "ctr", "lr");
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out[0] = r4;
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out[1] = r5;
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out[2] = r6;
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out[3] = r7;
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out[4] = r8;
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out[5] = r9;
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out[6] = r10;
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out[7] = r11;
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return r3;
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}
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EXPORT_SYMBOL_GPL(kvm_hypercall);
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