From 84783d4f953fc1c4383e78f50bf14171cc67d3d5 Mon Sep 17 00:00:00 2001 From: Zhang Xiantao Date: Wed, 19 Dec 2007 14:14:21 +0800 Subject: [PATCH] kvm/ia64: Add tr operation routines for ia64. This patches creates kvm_tr.S, which used as tr operations(insert/purge). Signed-off-by: Zhang Xiantao --- arch/ia64/kvm/kvm_tr.S | 82 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 82 insertions(+), 0 deletions(-) create mode 100644 arch/ia64/kvm/kvm_tr.S diff --git a/arch/ia64/kvm/kvm_tr.S b/arch/ia64/kvm/kvm_tr.S new file mode 100644 index 0000000..c48cac0 --- /dev/null +++ b/arch/ia64/kvm/kvm_tr.S @@ -0,0 +1,82 @@ +/* + * kvm_tr.S: Utility for TR operation + * + * Copyright (C) 2007 Intel Corperation + * Zhang Xiantao + * + * This program is free software you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + */ +#include + +/* __kvm_insert_idtr(trnum, vaddr, paddr, ps) + * Ensure irq is disabled before called here!!! + * Description: Insert mapping into ITR & DTR with current region ID. + * trnum: tr number + * vaddr: virtual address (format refers to IFA format, in SDV Vol2 4.1.1.5 + * paddr: physical address (format refers to GR format, in SDV Vol2 4.1.1.5 + * ps: log 2 of page size + */ +GLOBAL_ENTRY (__kvm_insert_idtr) + .regstk 4,0,0,0 + rsm psr.ic + ;; + srlz.d + ;; + shl in3=in3, 2 + ;; + mov cr.itir=in3 + mov cr.ifa=in1 + ;; + ptr.i in1,in3 + ;; + srlz.i + ;; + itr.i itr[in0]=in2 + ;; + srlz.i + ;; + ptr.d in1,in3 + ;; + srlz.d + ;; + itr.d dtr[in0]=in2 + ;; + srlz.d + ;; + ssm psr.ic + ;; + srlz.d + ;; + br.ret.sptk b0 +END(__kvm_insert_idtr) + + /* __kvm_purge_dtr_rr(vaddr, ps,) + * vaddr: virtual address (format refers to IFA format, in SDV Vol2 4.1.1.5 + * ps: log 2 of page size + */ + +GLOBAL_ENTRY(__kvm_purge_idtr) + .regstk 2,0,0,0 + shl in1 = in1,2 + ;; + ptr.i in0,in1 + ;; + srlz.i + ptr.d in0,in1 + ;; + srlz.d + ;; + br.ret.sptk b0 +END(__kvm_purge_idtr) + -- 1.5.2