C++ (Cpp) xp_restrict_memprotectの例

コード例 #1

ファイル: xpc_uv.c プロジェクト: 020gzh/linux

static void
xpc_destroy_gru_mq_uv(struct xpc_gru_mq_uv *mq)
{
	unsigned int mq_size;
	int pg_order;
	int ret;

	/* disallow other partitions to access GRU mq */
	mq_size = 1UL << mq->order;
	ret = xp_restrict_memprotect(xp_pa(mq->address), mq_size);
	BUG_ON(ret != xpSuccess);

	/* unregister irq handler and release mq irq/vector mapping */
	free_irq(mq->irq, NULL);
	xpc_release_gru_mq_irq_uv(mq);

	/* disable generation of irq when GRU mq op occurs to this mq */
	xpc_gru_mq_watchlist_free_uv(mq);

	pg_order = mq->order - PAGE_SHIFT;
	free_pages((unsigned long)mq->address, pg_order);

	kfree(mq);
}

コード例 #2

static void
xpc_destroy_gru_mq_uv(struct xpc_gru_mq_uv *mq)
{
	unsigned int mq_size;
	int pg_order;
	int ret;

	
	mq_size = 1UL << mq->order;
	ret = xp_restrict_memprotect(xp_pa(mq->address), mq_size);
	BUG_ON(ret != xpSuccess);

	
	free_irq(mq->irq, NULL);
	xpc_release_gru_mq_irq_uv(mq);

	
	xpc_gru_mq_watchlist_free_uv(mq);

	pg_order = mq->order - PAGE_SHIFT;
	free_pages((unsigned long)mq->address, pg_order);

	kfree(mq);
}