152 lines
3.0 KiB
C
152 lines
3.0 KiB
C
/* $NetBSD: xenfunc.c,v 1.13 2011/11/06 11:40:47 cherry Exp $ */
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/*
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*
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* Copyright (c) 2004 Christian Limpach.
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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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: xenfunc.c,v 1.13 2011/11/06 11:40:47 cherry Exp $");
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#include <sys/param.h>
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#include <uvm/uvm_extern.h>
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#include <machine/intr.h>
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#include <machine/vmparam.h>
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#include <machine/pmap.h>
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#include <xen/xen.h>
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#include <xen/hypervisor.h>
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//#include <xen/evtchn.h>
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#include <xen/xenpmap.h>
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#include <machine/pte.h>
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#ifdef XENDEBUG_LOW
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#define __PRINTK(x) printk x
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#else
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#define __PRINTK(x)
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#endif
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void xen_set_ldt(vaddr_t, uint32_t);
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void
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invlpg(vaddr_t addr)
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{
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int s = splvm();
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xpq_queue_invlpg(addr);
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splx(s);
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}
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void
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lldt(u_short sel)
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{
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#ifndef __x86_64__
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struct cpu_info *ci;
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ci = curcpu();
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if (ci->ci_curldt == sel)
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return;
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/* __PRINTK(("ldt %x\n", IDXSELN(sel))); */
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if (sel == GSEL(GLDT_SEL, SEL_KPL))
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xen_set_ldt((vaddr_t)ldt, NLDT);
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else
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xen_set_ldt(ci->ci_gdt[IDXSELN(sel)].ld.ld_base,
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ci->ci_gdt[IDXSELN(sel)].ld.ld_entries);
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ci->ci_curldt = sel;
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#endif
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}
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void
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ltr(u_short sel)
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{
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panic("XXX ltr not supported\n");
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}
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void
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lcr0(u_long val)
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{
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panic("XXX lcr0 not supported\n");
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}
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u_long
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rcr0(void)
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{
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/* XXX: handle X86_CR0_TS ? */
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return 0;
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}
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#ifndef __x86_64__
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void
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lcr3(vaddr_t val)
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{
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int s = splvm();
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xpq_queue_pt_switch(xpmap_ptom_masked(val));
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splx(s);
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}
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#endif
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void
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tlbflush(void)
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{
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int s = splvm();
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xpq_queue_tlb_flush();
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splx(s);
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}
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void
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tlbflushg(void)
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{
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tlbflush();
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}
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vaddr_t
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rdr6(void)
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{
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u_int val;
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val = HYPERVISOR_get_debugreg(6);
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return val;
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}
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void
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ldr6(vaddr_t val)
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{
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HYPERVISOR_set_debugreg(6, val);
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}
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void
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wbinvd(void)
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{
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xpq_flush_cache();
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}
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vaddr_t
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rcr2(void)
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{
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return curcpu()->ci_vcpu->arch.cr2;
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}
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