On Thu, 23 May 2019, Michael Mueller wrote:
> From: Halil Pasic
>
> Protected virtualization guests have to use shared pages for airq
> notifier bit vectors, because hypervisor needs to write these bits.
>
> Let us make sure we allocate DMA memory for the notifier bit vectors by
> replacing
On Thu, 23 May 2019, Michael Mueller wrote:
> static struct ccw_device * io_subchannel_allocate_dev(struct subchannel *sch)
> {
> struct ccw_device *cdev;
> + struct gen_pool *dma_pool;
>
> cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
> - if (cdev) {
> -
On Thu, 23 May 2019, Michael Mueller wrote:
> +static void __init cio_dma_pool_init(void)
> +{
> + /* No need to free up the resources: compiled in */
> + cio_dma_pool = cio_gp_dma_create(cio_get_dma_css_dev(), 1);
This can return NULL.
> +/**
> + * Allocate dma memory from the css
On 25/05/2019 10:22, Nadav Amit wrote:
> To improve TLB shootdown performance, flush the remote and local TLBs
> concurrently. Introduce flush_tlb_multi() that does so. The current
> flush_tlb_others() interface is kept, since paravirtual interfaces need
> to be adapted first before it can be
> On May 25, 2019, at 1:22 AM, Nadav Amit wrote:
>
> To improve TLB shootdown performance, flush the remote and local TLBs
> concurrently. Introduce flush_tlb_multi() that does so. The current
> flush_tlb_others() interface is kept, since paravirtual interfaces need
> to be adapted first before
To improve TLB shootdown performance, flush the remote and local TLBs
concurrently. Introduce flush_tlb_multi() that does so. The current
flush_tlb_others() interface is kept, since paravirtual interfaces need
to be adapted first before it can be removed. This is left for future
work. In such PV
