From 7a5b558c9d061814f34d9b95d70d17ef75037937 Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Tue, 8 Oct 2013 13:29:11 +0200 Subject: [PATCH] memory: make sure that client is always inside range Signed-off-by: Juan Quintela Reviewed-by: Eric Blake Reviewed-by: Orit Wasserman --- include/exec/memory-internal.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h index b58010f1d0..d09d6d8355 100644 --- a/include/exec/memory-internal.h +++ b/include/exec/memory-internal.h @@ -43,6 +43,7 @@ void qemu_ram_free_from_ptr(ram_addr_t addr); static inline bool cpu_physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client) { + assert(client < DIRTY_MEMORY_NUM); return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] & (1 << client); } @@ -74,6 +75,7 @@ static inline int cpu_physical_memory_get_dirty(ram_addr_t start, static inline void cpu_physical_memory_set_dirty_flag(ram_addr_t addr, unsigned client) { + assert(client < DIRTY_MEMORY_NUM); ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= (1 << client); } @@ -89,6 +91,8 @@ static inline int cpu_physical_memory_clear_dirty_flag(ram_addr_t addr, { int mask = ~(1 << client); + assert(client < DIRTY_MEMORY_NUM); + return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] &= mask; }