From af77f2cd7af1fa65a414c86767366bae95892e69 Mon Sep 17 00:00:00 2001 From: John Snow Date: Mon, 19 Jan 2015 15:15:49 -0500 Subject: libqos: Split apart pc_alloc_init Move the list-specific initialization over into malloc.c, to keep all of the list implementation details within the same file. The allocation and freeing of these structures are now both back within the same layer. Signed-off-by: John Snow Reviewed-by: Paolo Bonzini Message-id: 1421698563-6977-2-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi --- tests/libqos/malloc.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'tests/libqos/malloc.c') diff --git a/tests/libqos/malloc.c b/tests/libqos/malloc.c index 5debf18497..0d34ecd4b6 100644 --- a/tests/libqos/malloc.c +++ b/tests/libqos/malloc.c @@ -268,3 +268,20 @@ void guest_free(QGuestAllocator *allocator, uint64_t addr) mlist_check(allocator); } } + +QGuestAllocator *alloc_init(uint64_t start, uint64_t end) +{ + QGuestAllocator *s = g_malloc0(sizeof(*s)); + MemBlock *node; + + s->start = start; + s->end = end; + + 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; +} -- cgit v1.2.3 From fa02e6084f727191e15fc6b2d1328c4fae874741 Mon Sep 17 00:00:00 2001 From: John Snow Date: Mon, 19 Jan 2015 15:15:53 -0500 Subject: libqos: add alloc_init_flags Allow a generic interface to alloc_init_flags, not just through pc_alloc_init_flags. Signed-off-by: John Snow Reviewed-by: Paolo Bonzini Message-id: 1421698563-6977-6-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi --- tests/libqos/malloc.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'tests/libqos/malloc.c') diff --git a/tests/libqos/malloc.c b/tests/libqos/malloc.c index 0d34ecd4b6..4ff260f085 100644 --- a/tests/libqos/malloc.c +++ b/tests/libqos/malloc.c @@ -285,3 +285,11 @@ QGuestAllocator *alloc_init(uint64_t start, uint64_t end) return s; } + +QGuestAllocator *alloc_init_flags(QAllocOpts opts, + uint64_t start, uint64_t end) +{ + QGuestAllocator *s = alloc_init(start, end); + s->opts = opts; + return s; +} -- cgit v1.2.3 From f6f363c1f4f962aee9f69c67ab2f3ff58c30f8c1 Mon Sep 17 00:00:00 2001 From: John Snow Date: Mon, 19 Jan 2015 15:15:54 -0500 Subject: libqos: Update QGuestAllocator to be opaque MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To avoid the architecture-specific implementations of the generic qtest allocator having to know about fields within the allocator, add a page_size setter method for users or arch specializations to use. The allocator will assume a default page_size for general use, but it can always be overridden. Since this was the last instance of code directly using properties of the QGuestAllocator object directly, modify the type to be opaque and move the structure inside of malloc.c. mlist_new, which was previously exported, is made static local to malloc.c, as it has no external users. [Peter Maydell reported the following clang warning: tests/libqos/malloc.c:35:3: warning: redefinition of typedef 'QGuestAllocator' is a C11 feature [-Wtypedef-redefinition] } QGuestAllocator; I converted typedef struct ... QGuestAllocator; to struct ...; --Stefan] Signed-off-by: John Snow Reviewed-by: Marc Marí Message-id: 1421698563-6977-7-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi --- tests/libqos/malloc.c | 61 ++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 46 insertions(+), 15 deletions(-) (limited to 'tests/libqos/malloc.c') diff --git a/tests/libqos/malloc.c b/tests/libqos/malloc.c index 4ff260f085..42e34345ad 100644 --- a/tests/libqos/malloc.c +++ b/tests/libqos/malloc.c @@ -16,6 +16,26 @@ #include #include +typedef QTAILQ_HEAD(MemList, MemBlock) MemList; + +typedef struct MemBlock { + QTAILQ_ENTRY(MemBlock) MLIST_ENTNAME; + uint64_t size; + uint64_t addr; +} MemBlock; + +struct QGuestAllocator { + QAllocOpts opts; + uint64_t start; + uint64_t end; + uint32_t page_size; + + MemList used; + MemList free; +}; + +#define DEFAULT_PAGE_SIZE 4096 + static void mlist_delete(MemList *list, MemBlock *node) { g_assert(list && node); @@ -103,6 +123,21 @@ static void mlist_coalesce(MemList *head, MemBlock *node) } while (merge); } +static MemBlock *mlist_new(uint64_t addr, uint64_t size) +{ + MemBlock *block; + + if (!size) { + return NULL; + } + block = g_malloc0(sizeof(MemBlock)); + + block->addr = addr; + block->size = size; + + return block; +} + static uint64_t mlist_fulfill(QGuestAllocator *s, MemBlock *freenode, uint64_t size) { @@ -187,21 +222,6 @@ static void mlist_free(QGuestAllocator *s, uint64_t addr) mlist_coalesce(&s->free, node); } -MemBlock *mlist_new(uint64_t addr, uint64_t size) -{ - MemBlock *block; - - if (!size) { - return NULL; - } - block = g_malloc0(sizeof(MemBlock)); - - block->addr = addr; - block->size = size; - - return block; -} - /* * Mostly for valgrind happiness, but it does offer * a chokepoint for debugging guest memory leaks, too. @@ -283,6 +303,8 @@ QGuestAllocator *alloc_init(uint64_t start, uint64_t end) node = mlist_new(s->start, s->end - s->start); QTAILQ_INSERT_HEAD(&s->free, node, MLIST_ENTNAME); + s->page_size = DEFAULT_PAGE_SIZE; + return s; } @@ -293,3 +315,12 @@ QGuestAllocator *alloc_init_flags(QAllocOpts opts, s->opts = opts; return s; } + +void alloc_set_page_size(QGuestAllocator *allocator, size_t page_size) +{ + /* Can't alter the page_size for an allocator in-use */ + g_assert(QTAILQ_EMPTY(&allocator->used)); + + g_assert(is_power_of_2(page_size)); + allocator->page_size = page_size; +} -- cgit v1.2.3 From 259342d34dbdfb304374f569feec26317edd97c9 Mon Sep 17 00:00:00 2001 From: John Snow Date: Thu, 5 Feb 2015 12:41:28 -0500 Subject: libqos/ahci: Add ahci_clean_mem Clean up guest memory being used in ahci_clean_mem, to be called during ahci_shutdown. With all guest memory leaks removed, add an option to the allocator to throw an assertion if a leak occurs. This test adds some sanity to both the AHCI library and the allocator. Signed-off-by: John Snow Reviewed-by: Paolo Bonzini Message-id: 1423158090-25580-18-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi --- tests/libqos/malloc.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tests/libqos/malloc.c') diff --git a/tests/libqos/malloc.c b/tests/libqos/malloc.c index 42e34345ad..67f31902fd 100644 --- a/tests/libqos/malloc.c +++ b/tests/libqos/malloc.c @@ -324,3 +324,8 @@ void alloc_set_page_size(QGuestAllocator *allocator, size_t page_size) g_assert(is_power_of_2(page_size)); allocator->page_size = page_size; } + +void alloc_set_flags(QGuestAllocator *allocator, QAllocOpts opts) +{ + allocator->opts |= opts; +} -- cgit v1.2.3