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xenfunc.c revision 1.11 
      1  1.11     jym /*	$NetBSD: xenfunc.c,v 1.11 2010/07/24 00:45:56 jym Exp $	*/
      2   1.2  bouyer 
      3   1.2  bouyer /*
      4   1.2  bouyer  *
      5   1.2  bouyer  * Copyright (c) 2004 Christian Limpach.
      6   1.2  bouyer  * All rights reserved.
      7   1.2  bouyer  *
      8   1.2  bouyer  * Redistribution and use in source and binary forms, with or without
      9   1.2  bouyer  * modification, are permitted provided that the following conditions
     10   1.2  bouyer  * are met:
     11   1.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     12   1.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     13   1.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     14   1.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     15   1.2  bouyer  *    documentation and/or other materials provided with the distribution.
     16   1.2  bouyer  *
     17   1.2  bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18   1.2  bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19   1.2  bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20   1.2  bouyer  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21   1.2  bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22   1.2  bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23   1.2  bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24   1.2  bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25   1.2  bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26   1.2  bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27   1.2  bouyer  */
     28   1.2  bouyer 
     29   1.4  bouyer #include <sys/cdefs.h>
     30  1.11     jym __KERNEL_RCSID(0, "$NetBSD: xenfunc.c,v 1.11 2010/07/24 00:45:56 jym Exp $");
     31   1.4  bouyer 
     32   1.2  bouyer #include <sys/param.h>
     33   1.2  bouyer 
     34   1.2  bouyer #include <uvm/uvm_extern.h>
     35   1.2  bouyer 
     36   1.2  bouyer #include <machine/intr.h>
     37   1.2  bouyer #include <machine/vmparam.h>
     38   1.2  bouyer #include <machine/pmap.h>
     39   1.2  bouyer #include <xen/xen.h>
     40   1.2  bouyer #include <xen/hypervisor.h>
     41   1.2  bouyer //#include <xen/evtchn.h>
     42   1.2  bouyer #include <xen/xenpmap.h>
     43   1.2  bouyer #include <machine/pte.h>
     44   1.2  bouyer 
     45   1.2  bouyer #ifdef XENDEBUG_LOW
     46   1.2  bouyer #define	__PRINTK(x) printk x
     47   1.2  bouyer #else
     48   1.2  bouyer #define	__PRINTK(x)
     49   1.2  bouyer #endif
     50   1.2  bouyer 
     51   1.2  bouyer void xen_set_ldt(vaddr_t, uint32_t);
     52   1.2  bouyer 
     53   1.2  bouyer void
     54   1.2  bouyer invlpg(vaddr_t addr)
     55   1.2  bouyer {
     56   1.2  bouyer 	int s = splvm();
     57   1.2  bouyer 	xpq_queue_invlpg(addr);
     58   1.2  bouyer 	splx(s);
     59   1.2  bouyer }
     60   1.2  bouyer 
     61   1.2  bouyer void
     62   1.2  bouyer lldt(u_short sel)
     63   1.2  bouyer {
     64  1.11     jym #ifndef __x86_64__
     65   1.7      ad 	struct cpu_info *ci;
     66   1.2  bouyer 
     67   1.7      ad 	ci = curcpu();
     68   1.7      ad 
     69   1.7      ad 	if (ci->ci_curldt == sel)
     70   1.7      ad 		return;
     71   1.2  bouyer 	/* __PRINTK(("ldt %x\n", IDXSELN(sel))); */
     72   1.2  bouyer 	if (sel == GSEL(GLDT_SEL, SEL_KPL))
     73   1.2  bouyer 		xen_set_ldt((vaddr_t)ldt, NLDT);
     74   1.2  bouyer 	else
     75   1.7      ad 		xen_set_ldt(ci->ci_gdt[IDXSELN(sel)].ld.ld_base,
     76   1.7      ad 		    ci->ci_gdt[IDXSELN(sel)].ld.ld_entries);
     77   1.7      ad 	ci->ci_curldt = sel;
     78  1.11     jym #endif
     79   1.2  bouyer }
     80   1.2  bouyer 
     81   1.2  bouyer void
     82   1.2  bouyer ltr(u_short sel)
     83   1.2  bouyer {
     84   1.2  bouyer 	__PRINTK(("XXX ltr not supported\n"));
     85   1.2  bouyer }
     86   1.2  bouyer 
     87   1.2  bouyer void
     88   1.6  cegger lcr0(u_long val)
     89   1.2  bouyer {
     90   1.2  bouyer 	__PRINTK(("XXX lcr0 not supported\n"));
     91   1.2  bouyer }
     92   1.2  bouyer 
     93   1.6  cegger u_long
     94   1.2  bouyer rcr0(void)
     95   1.2  bouyer {
     96   1.2  bouyer 	__PRINTK(("XXX rcr0 not supported\n"));
     97   1.2  bouyer 	return 0;
     98   1.2  bouyer }
     99   1.2  bouyer 
    100   1.2  bouyer #ifndef __x86_64__
    101   1.2  bouyer void
    102   1.2  bouyer lcr3(vaddr_t val)
    103   1.2  bouyer {
    104   1.2  bouyer 	int s = splvm();
    105   1.2  bouyer 	xpq_queue_pt_switch(xpmap_ptom_masked(val));
    106   1.2  bouyer 	splx(s);
    107   1.2  bouyer }
    108   1.2  bouyer #endif
    109   1.2  bouyer 
    110   1.2  bouyer void
    111   1.2  bouyer tlbflush(void)
    112   1.2  bouyer {
    113   1.2  bouyer 	int s = splvm();
    114   1.2  bouyer 	xpq_queue_tlb_flush();
    115   1.2  bouyer 	splx(s);
    116   1.2  bouyer }
    117   1.2  bouyer 
    118   1.2  bouyer void
    119   1.2  bouyer tlbflushg(void)
    120   1.2  bouyer {
    121   1.2  bouyer 	tlbflush();
    122   1.2  bouyer }
    123   1.2  bouyer 
    124   1.2  bouyer vaddr_t
    125   1.2  bouyer rdr6(void)
    126   1.2  bouyer {
    127   1.2  bouyer 	u_int val;
    128   1.2  bouyer 
    129   1.2  bouyer 	val = HYPERVISOR_get_debugreg(6);
    130   1.2  bouyer 	return val;
    131   1.2  bouyer }
    132   1.2  bouyer 
    133   1.2  bouyer void
    134   1.2  bouyer ldr6(vaddr_t val)
    135   1.2  bouyer {
    136   1.2  bouyer 
    137   1.2  bouyer 	HYPERVISOR_set_debugreg(6, val);
    138   1.2  bouyer }
    139   1.2  bouyer 
    140   1.2  bouyer void
    141   1.2  bouyer wbinvd(void)
    142   1.2  bouyer {
    143   1.2  bouyer 
    144   1.2  bouyer 	xpq_flush_cache();
    145   1.2  bouyer }
    146   1.2  bouyer 
    147   1.2  bouyer vaddr_t
    148   1.2  bouyer rcr2(void)
    149   1.2  bouyer {
    150   1.5  cegger 	return curcpu()->ci_vcpu->arch.cr2;
    151   1.2  bouyer }
    152