hypervisor/src/greatlakes/common/src/mmu_common.s

/*
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* Hypervisor Software File: mmu_common.s
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/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

        .ident  "@(#)mmu_common.s       1.2     07/05/03 SMI"

/*
 * Niagara-family MMU common routines
 */

#include <sys/asm_linkage.h>
#include <hprivregs.h>
#include <asi.h>
#include <traps.h>
#include <mmu.h>
#include <sun4v/traps.h>
#include <sun4v/mmu.h>

#include <guest.h>
#include <offsets.h>
#include <debug.h>
#include <util.h>

/*
 * revec_dax - revector the current trap to the guest's DAX handler
 *
 * %g1 - fault type
 * %g2 - fault addr
 * %g3 - fault ctx
 */
        ENTRY_NP(revec_dax)
        VCPU_STRUCT(%g4)
        ldx     [%g4 + CPU_MMU_AREA], %g4
        brz,pn  %g4, watchdog_guest
        nop
        stx     %g1, [%g4 + MMU_FAULT_AREA_DFT]
        stx     %g2, [%g4 + MMU_FAULT_AREA_DADDR]
        stx     %g3, [%g4 + MMU_FAULT_AREA_DCTX]
        REVECTOR(TT_DAX)
        SET_SIZE(revec_dax)

/*
 * revec_iax - revector the current trap to the guest's IAX handler
 *
 * %g1 - fault type
 * %g2 - fault addr
 * %g3 - fault ctx
 */
        ENTRY_NP(revec_iax)
        VCPU_STRUCT(%g4)
        ldx     [%g4 + CPU_MMU_AREA], %g4
        brz,pn  %g4, watchdog_guest
        nop
        stx     %g1, [%g4 + MMU_FAULT_AREA_IFT]
        stx     %g2, [%g4 + MMU_FAULT_AREA_IADDR]
        stx     %g3, [%g4 + MMU_FAULT_AREA_ICTX]
        REVECTOR(TT_IAX)
        SET_SIZE(revec_iax)