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memory: make sure that client is always inside range

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Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
This commit is contained in:
Juan Quintela 2013-10-08 13:29:11 +02:00
parent 5adca7ace9
commit 7a5b558c9d
1 changed files with 4 additions and 0 deletions
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4
include/exec/memory-internal.h
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@ -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;
}