From 14d40183725361e6350166099556c7661063921b Mon Sep 17 00:00:00 2001 From: Dongxiao Xu Date: Wed, 22 Aug 2012 10:17:43 +0000 Subject: xen-all.c: fix multiply issue for int and uint types If the two multiply operands are int and uint types separately, the int type will be transformed to uint firstly, which is not the intent in our code piece. The fix is to add (int64_t) transform for the uint type before the multiply. Signed-off-by: Dongxiao Xu Signed-off-by: Stefano Stabellini --- xen-all.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) (limited to 'xen-all.c') diff --git a/xen-all.c b/xen-all.c index 61def2ec8f..f76b051eee 100644 --- a/xen-all.c +++ b/xen-all.c @@ -712,7 +712,8 @@ static void cpu_ioreq_pio(ioreq_t *req) for (i = 0; i < req->count; i++) { tmp = do_inp(req->addr, req->size); - cpu_physical_memory_write(req->data + (sign * i * req->size), + cpu_physical_memory_write( + req->data + (sign * i * (int64_t)req->size), (uint8_t *) &tmp, req->size); } } @@ -723,7 +724,8 @@ static void cpu_ioreq_pio(ioreq_t *req) for (i = 0; i < req->count; i++) { uint32_t tmp = 0; - cpu_physical_memory_read(req->data + (sign * i * req->size), + cpu_physical_memory_read( + req->data + (sign * i * (int64_t)req->size), (uint8_t*) &tmp, req->size); do_outp(req->addr, req->size, tmp); } @@ -740,12 +742,14 @@ static void cpu_ioreq_move(ioreq_t *req) if (!req->data_is_ptr) { if (req->dir == IOREQ_READ) { for (i = 0; i < req->count; i++) { - cpu_physical_memory_read(req->addr + (sign * i * req->size), + cpu_physical_memory_read( + req->addr + (sign * i * (int64_t)req->size), (uint8_t *) &req->data, req->size); } } else if (req->dir == IOREQ_WRITE) { for (i = 0; i < req->count; i++) { - cpu_physical_memory_write(req->addr + (sign * i * req->size), + cpu_physical_memory_write( + req->addr + (sign * i * (int64_t)req->size), (uint8_t *) &req->data, req->size); } } @@ -754,16 +758,20 @@ static void cpu_ioreq_move(ioreq_t *req) if (req->dir == IOREQ_READ) { for (i = 0; i < req->count; i++) { - cpu_physical_memory_read(req->addr + (sign * i * req->size), + cpu_physical_memory_read( + req->addr + (sign * i * (int64_t)req->size), (uint8_t*) &tmp, req->size); - cpu_physical_memory_write(req->data + (sign * i * req->size), + cpu_physical_memory_write( + req->data + (sign * i * (int64_t)req->size), (uint8_t*) &tmp, req->size); } } else if (req->dir == IOREQ_WRITE) { for (i = 0; i < req->count; i++) { - cpu_physical_memory_read(req->data + (sign * i * req->size), + cpu_physical_memory_read( + req->data + (sign * i * (int64_t)req->size), (uint8_t*) &tmp, req->size); - cpu_physical_memory_write(req->addr + (sign * i * req->size), + cpu_physical_memory_write( + req->addr + (sign * i * (int64_t)req->size), (uint8_t*) &tmp, req->size); } } -- cgit v1.2.3