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/* -*- Mode:C; c-basic-offset:4; tab-width:4; indent-tabs-mode:nil -*- */
/*
* vmx_hyparcall.c: handling hypercall from domain
* Copyright (c) 2005, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307 USA.
*
* Xuefei Xu (Anthony Xu) (Anthony.xu@intel.com)
*/
#include <xen/config.h>
#include <xen/errno.h>
#include <asm/vmx_vcpu.h>
#include <public/xen.h>
#include <public/event_channel.h>
#include <asm/vmmu.h>
#include <asm/tlb.h>
#include <asm/regionreg.h>
#include <asm/page.h>
#include <xen/mm.h>
void hyper_not_support(void)
{
VCPU *vcpu=current;
vmx_vcpu_set_gr(vcpu, 8, -1, 0);
vmx_vcpu_increment_iip(vcpu);
}
void hyper_mmu_update(void)
{
VCPU *vcpu=current;
u64 r32,r33,r34,r35,ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
vmx_vcpu_get_gr(vcpu,17,&r33);
vmx_vcpu_get_gr(vcpu,18,&r34);
vmx_vcpu_get_gr(vcpu,19,&r35);
ret=do_mmu_update((mmu_update_t*)r32,r33,r34,r35);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
void hyper_dom_mem_op(void)
{
VCPU *vcpu=current;
u64 r32,r33,r34,r35,r36;
u64 ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
vmx_vcpu_get_gr(vcpu,17,&r33);
vmx_vcpu_get_gr(vcpu,18,&r34);
vmx_vcpu_get_gr(vcpu,19,&r35);
vmx_vcpu_get_gr(vcpu,20,&r36);
ret=do_dom_mem_op(r32,(u64 *)r33,r34,r35,r36);
printf("do_dom_mem return value: %lx\n", ret);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
void hyper_sched_op(void)
{
VCPU *vcpu=current;
u64 r32,ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
ret=do_sched_op(r32);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
void hyper_dom0_op(void)
{
VCPU *vcpu=current;
u64 r32,ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
ret=do_dom0_op((dom0_op_t *)r32);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
void hyper_event_channel_op(void)
{
VCPU *vcpu=current;
u64 r32,ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
ret=do_event_channel_op((evtchn_op_t *)r32);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
void hyper_xen_version(void)
{
VCPU *vcpu=current;
u64 r32,ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
ret=do_xen_version((int )r32);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
static int do_lock_page(VCPU *vcpu, u64 va, u64 lock)
{
int i;
ia64_rr rr;
thash_cb_t *hcb;
hcb = vmx_vcpu_get_vtlb(vcpu);
rr = vmx_vcpu_rr(vcpu, va);
return thash_lock_tc(hcb, va ,1U<<rr.ps, rr.rid, DSIDE_TLB, lock);
}
/*
* Lock guest page in vTLB, so that it's not relinquished by recycle
* session when HV is servicing that hypercall.
*/
void hyper_lock_page(void)
{
//TODO:
VCPU *vcpu=current;
u64 va,lock, ret;
vmx_vcpu_get_gr(vcpu,16,&va);
vmx_vcpu_get_gr(vcpu,17,&lock);
ret=do_lock_page(vcpu, va, lock);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
static int do_set_shared_page(VCPU *vcpu, u64 gpa)
{
u64 shared_info, o_info;
if(vcpu->domain!=dom0)
return -EPERM;
shared_info = __gpa_to_mpa(vcpu->domain, gpa);
o_info = (u64)vcpu->domain->shared_info;
vcpu->domain->shared_info= (shared_info_t *)__va(shared_info);
/* Copy existing shared info into new page */
if (!o_info) {
memcpy((void*)vcpu->domain->shared_info, (void*)o_info, PAGE_SIZE);
/* If original page belongs to xen heap, then relinguish back
* to xen heap. Or else, leave to domain itself to decide.
*/
if (likely(IS_XEN_HEAP_FRAME(virt_to_page(o_info))))
free_xenheap_page(o_info);
}
return 0;
}
void hyper_set_shared_page(void)
{
VCPU *vcpu=current;
u64 gpa,ret;
vmx_vcpu_get_gr(vcpu,16,&gpa);
ret=do_set_shared_page(vcpu, gpa);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
vmx_vcpu_increment_iip(vcpu);
}
/*
void hyper_grant_table_op(void)
{
VCPU *vcpu=current;
u64 r32,r33,r34,ret;
vmx_vcpu_get_gr(vcpu,16,&r32);
vmx_vcpu_get_gr(vcpu,17,&r33);
vmx_vcpu_get_gr(vcpu,18,&r34);
ret=do_grant_table_op((unsigned int)r32, (void *)r33, (unsigned int)r34);
vmx_vcpu_set_gr(vcpu, 8, ret, 0);
}
*/
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