From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40866) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xkc5m-0006kO-Q0 for qemu-devel@nongnu.org; Sat, 01 Nov 2014 13:04:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xkc5b-0000vT-RX for qemu-devel@nongnu.org; Sat, 01 Nov 2014 13:03:58 -0400 Received: from mail-wi0-x22b.google.com ([2a00:1450:400c:c05::22b]:61919) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xkc5b-0000vI-Kx for qemu-devel@nongnu.org; Sat, 01 Nov 2014 13:03:47 -0400 Received: by mail-wi0-f171.google.com with SMTP id q5so3509228wiv.4 for ; Sat, 01 Nov 2014 10:03:46 -0700 (PDT) From: =?UTF-8?q?Marc=20Mar=C3=AD?= Date: Sat, 1 Nov 2014 18:02:29 +0100 Message-Id: <1414861350-13099-5-git-send-email-marc.mari.barcelo@gmail.com> In-Reply-To: <1414861350-13099-1-git-send-email-marc.mari.barcelo@gmail.com> References: <1414861350-13099-1-git-send-email-marc.mari.barcelo@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v2 4/5] libqos: Add malloc generic List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Marc=20Mar=C3=AD?= , =?UTF-8?q?Andreas=20F=C3=A4rber?= , Stefan Hajnoczi This malloc is a basic interface implementation that works for any platform. It should be replaced in the future for a real malloc implementation for each of the platforms. Signed-off-by: Marc Marí --- tests/libqos/malloc-generic.c | 50 +++++++++++++++++++++++++++++++++++++++++ tests/libqos/malloc-generic.h | 21 +++++++++++++++++ 2 files changed, 71 insertions(+) create mode 100644 tests/libqos/malloc-generic.c create mode 100644 tests/libqos/malloc-generic.h diff --git a/tests/libqos/malloc-generic.c b/tests/libqos/malloc-generic.c new file mode 100644 index 0000000..0049424 --- /dev/null +++ b/tests/libqos/malloc-generic.c @@ -0,0 +1,50 @@ +/* + * Basic libqos generic malloc support + * + * Copyright (c) 2014 Marc Marí + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "libqos/malloc-generic.h" +#include "libqos/malloc.h" +#include + +/* + * Mostly for valgrind happiness, but it does offer + * a chokepoint for debugging guest memory leaks, too. + */ +void generic_alloc_uninit(QGuestAllocator *allocator) +{ + alloc_uninit(allocator); +} + +QGuestAllocator *generic_alloc_init_flags(uint64_t base_addr, uint64_t size, + uint32_t page_size, QAllocOpts flags) +{ + QGuestAllocator *s = g_malloc0(sizeof(*s)); + MemBlock *node; + + s->opts = flags; + s->page_size = page_size; + + /* Start at 1MB */ + s->start = base_addr + (1 << 20); + + s->end = s->start + size; + + QTAILQ_INIT(&s->used); + QTAILQ_INIT(&s->free); + + node = mlist_new(s->start, s->end - s->start); + QTAILQ_INSERT_HEAD(&s->free, node, MLIST_ENTNAME); + + return s; +} + +inline QGuestAllocator *generic_alloc_init(uint64_t base_addr, uint64_t size, + uint32_t page_size) +{ + return generic_alloc_init_flags(base_addr, size, page_size, ALLOC_NO_FLAGS); +} diff --git a/tests/libqos/malloc-generic.h b/tests/libqos/malloc-generic.h new file mode 100644 index 0000000..90104ec --- /dev/null +++ b/tests/libqos/malloc-generic.h @@ -0,0 +1,21 @@ +/* + * Basic libqos generic malloc support + * + * Copyright (c) 2014 Marc Marí + * + * 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 LIBQOS_MALLOC_GENERIC_H +#define LIBQOS_MALLOC_GENERIC_H + +#include "libqos/malloc.h" + +QGuestAllocator *generic_alloc_init(uint64_t base_addr, uint64_t size, + uint32_t page_size); +QGuestAllocator *generic_alloc_init_flags(uint64_t base_addr, uint64_t size, + uint32_t page_size, QAllocOpts flags); +void generic_alloc_uninit(QGuestAllocator *allocator); + +#endif -- 1.7.10.4