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xenfunc.c revision 1.9.2.1 
      1  1.9.2.1  uebayasi /*	$NetBSD: xenfunc.c,v 1.9.2.1 2010/04/30 14:40:00 uebayasi 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  1.9.2.1  uebayasi __KERNEL_RCSID(0, "$NetBSD: xenfunc.c,v 1.9.2.1 2010/04/30 14:40:00 uebayasi 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 #ifndef __x86_64__
     62      1.2    bouyer void
     63      1.2    bouyer lldt(u_short sel)
     64      1.2    bouyer {
     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      1.2    bouyer }
     79      1.2    bouyer #endif
     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