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[Qemu-devel] [PULL v2 24/44] libqos: Add malloc generic
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL v2 24/44] libqos: Add malloc generic |
Date: |
Mon, 12 Jan 2015 16:40:14 +0000 |
From: Marc Marí <address@hidden>
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 <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
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..a0878c5
--- /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 <glib.h>
+#include "libqos/malloc-generic.h"
+#include "libqos/malloc.h"
+
+/*
+ * 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
--
2.1.0
- [Qemu-devel] [PULL v2 00/44] Block patches, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 32/44] qemu-thread: add per-thread atexit functions, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 33/44] test-coroutine: avoid overflow on 32-bit systems, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 34/44] QSLIST: add lock-free operations, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 35/44] coroutine: rewrite pool to avoid mutex, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 26/44] block/raw-posix.c: Fixes raw_getlength() on Mac OS X so that it reports the correct length of a real CD, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 36/44] coroutine: drop qemu_coroutine_adjust_pool_size, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 25/44] libqos: Add virtio MMIO support, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 21/44] libqos: Change use of pointers to uint64_t in virtio, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 24/44] libqos: Add malloc generic,
Stefan Hajnoczi <=
- [Qemu-devel] [PULL v2 39/44] block: Split BLOCK_OP_TYPE_COMMIT to BLOCK_OP_TYPE_COMMIT_{SOURCE, TARGET}, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 20/44] libqos: Convert malloc-pc allocator to a generic allocator, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 23/44] libqos: Remove PCI assumptions in constants of virtio driver, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 38/44] block: limited request size in write zeroes unsupported path, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 37/44] coroutine: try harder not to delete coroutines, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 41/44] nvme: Fix get/set number of queues feature, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 40/44] ide: Implement VPD response for ATAPI, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 22/44] tests: Prepare virtio-blk-test for multi-arch implementation, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 42/44] MAINTAINERS: Update email addresses for Chrysostomos Nanakos, Stefan Hajnoczi, 2015/01/12
- [Qemu-devel] [PULL v2 44/44] NVMe: Set correct VS Value for 1.1 Compliant Controllers, Stefan Hajnoczi, 2015/01/12