From e49ee2906c94cd6a339b2012c23e39d1a39f79e3 Mon Sep 17 00:00:00 2001 From: Richard Kuo Date: Mon, 31 Oct 2011 18:39:14 -0500 Subject: Hexagon: Add hypervisor interface Signed-off-by: Richard Kuo Acked-by: Arnd Bergmann Signed-off-by: Linus Torvalds --- arch/hexagon/kernel/vm_ops.S | 102 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 arch/hexagon/kernel/vm_ops.S (limited to 'arch/hexagon/kernel/vm_ops.S') diff --git a/arch/hexagon/kernel/vm_ops.S b/arch/hexagon/kernel/vm_ops.S new file mode 100644 index 0000000..24d7fca --- /dev/null +++ b/arch/hexagon/kernel/vm_ops.S @@ -0,0 +1,102 @@ +/* + * Hexagon VM instruction support + * + * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include +#include + +/* + * C wrappers for virtual machine "instructions". These + * could be, and perhaps some day will be, handled as in-line + * macros, but for tracing/debugging it's handy to have + * a single point of invocation for each of them. + * Conveniently, they take paramters and return values + * consistent with the ABI calling convention. + */ + +ENTRY(__vmrte) + trap1(#HVM_TRAP1_VMRTE); + jumpr R31; + +ENTRY(__vmsetvec) + trap1(#HVM_TRAP1_VMSETVEC); + jumpr R31; + +ENTRY(__vmsetie) + trap1(#HVM_TRAP1_VMSETIE); + jumpr R31; + +ENTRY(__vmgetie) + trap1(#HVM_TRAP1_VMGETIE); + jumpr R31; + +ENTRY(__vmintop) + trap1(#HVM_TRAP1_VMINTOP); + jumpr R31; + +ENTRY(__vmclrmap) + trap1(#HVM_TRAP1_VMCLRMAP); + jumpr R31; + +ENTRY(__vmnewmap) + r1 = #VM_NEWMAP_TYPE_PGTABLES; + trap1(#HVM_TRAP1_VMNEWMAP); + jumpr R31; + +ENTRY(__vmcache) + trap1(#HVM_TRAP1_VMCACHE); + jumpr R31; + +ENTRY(__vmgettime) + trap1(#HVM_TRAP1_VMGETTIME); + jumpr R31; + +ENTRY(__vmsettime) + trap1(#HVM_TRAP1_VMSETTIME); + jumpr R31; + +ENTRY(__vmwait) + trap1(#HVM_TRAP1_VMWAIT); + jumpr R31; + +ENTRY(__vmyield) + trap1(#HVM_TRAP1_VMYIELD); + jumpr R31; + +ENTRY(__vmstart) + trap1(#HVM_TRAP1_VMSTART); + jumpr R31; + +ENTRY(__vmstop) + trap1(#HVM_TRAP1_VMSTOP); + jumpr R31; + +ENTRY(__vmvpid) + trap1(#HVM_TRAP1_VMVPID); + jumpr R31; + +/* Probably not actually going to use these; see vm_entry.S */ + +ENTRY(__vmsetregs) + trap1(#HVM_TRAP1_VMSETREGS); + jumpr R31; + +ENTRY(__vmgetregs) + trap1(#HVM_TRAP1_VMGETREGS); + jumpr R31; -- cgit v1.1