/*- * Copyright (C) 2010 Andreas Tobler * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #include /* Hypervisor entry call. */ #define hc .long 0x44000022 /* * Simple HV calls take the same arguments, with the same ABI, as this * C function */ ASENTRY(phyp_hcall) mflr %r0 std %r0,16(%r1) #if defined(_CALL_ELF) && _CALL_ELF == 2 ld %r11,96(%r1) /* Last couple args into volatile regs*/ ld %r12,104(%r1) #else ld %r11,112(%r1) /* Last couple args into volatile regs*/ ld %r12,120(%r1) #endif hc /* invoke the hypervisor */ ld %r0,16(%r1) mtlr %r0 blr /* return r3 = status */ ASEND(phyp_hcall) /* * PFT HV calls take a special ABI (see PAPR 14.5.4.1) * * r3-r7 arguments passed unchanged, r8-r10 are addresses of return values * HV takes the same r3-r7, but returns values in r3, r4-r6 */ ASENTRY(phyp_pft_hcall) mflr %r0 std %r0,16(%r1) stdu %r1,-80(%r1) std %r8,48(%r1) /* save arguments */ std %r9,56(%r1) std %r10,64(%r1) hc /* invoke the hypervisor */ ld %r11,48(%r1) /* store results */ std %r4,0(%r11) ld %r11,56(%r1) std %r5,0(%r11) ld %r11,64(%r1) std %r6,0(%r11) ld %r1,0(%r1) /* exit */ ld %r0,16(%r1) mtlr %r0 blr /* return r3 = status */ ASEND(phyp_pft_hcall)