From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/include/exec/memattrs.h | 49 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 qemu/include/exec/memattrs.h (limited to 'qemu/include/exec/memattrs.h') diff --git a/qemu/include/exec/memattrs.h b/qemu/include/exec/memattrs.h new file mode 100644 index 000000000..f8537a8d9 --- /dev/null +++ b/qemu/include/exec/memattrs.h @@ -0,0 +1,49 @@ +/* + * Memory transaction attributes + * + * Copyright (c) 2015 Linaro Limited. + * + * Authors: + * Peter Maydell + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef MEMATTRS_H +#define MEMATTRS_H + +/* Every memory transaction has associated with it a set of + * attributes. Some of these are generic (such as the ID of + * the bus master); some are specific to a particular kind of + * bus (such as the ARM Secure/NonSecure bit). We define them + * all as non-overlapping bitfields in a single struct to avoid + * confusion if different parts of QEMU used the same bit for + * different semantics. + */ +typedef struct MemTxAttrs { + /* Bus masters which don't specify any attributes will get this + * (via the MEMTXATTRS_UNSPECIFIED constant), so that we can + * distinguish "all attributes deliberately clear" from + * "didn't specify" if necessary. + */ + unsigned int unspecified:1; + /* ARM/AMBA: TrustZone Secure access + * x86: System Management Mode access + */ + unsigned int secure:1; + /* Memory access is usermode (unprivileged) */ + unsigned int user:1; + /* Stream ID (for MSI for example) */ + unsigned int stream_id:16; +} MemTxAttrs; + +/* Bus masters which don't specify any attributes will get this, + * which has all attribute bits clear except the topmost one + * (so that we can distinguish "all attributes deliberately clear" + * from "didn't specify" if necessary). + */ +#define MEMTXATTRS_UNSPECIFIED ((MemTxAttrs) { .unspecified = 1 }) + +#endif -- cgit 1.2.3-korg