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commit 72d6878a1c013c048823bf66cce9c00f20d10956 Intel-BKC. IOASIDs are used to associate DMA requests with virtual address spaces. They are a system-wide limited resource made available to the userspace applications. Let it be VMs or user-space device drivers. This RFC patch introduces a cgroup controller to address the following problems: 1. Some user applications exhaust all the available IOASIDs thus depriving others of the same host. 2. System admins need to provision VMs based on their needs for IOASIDs, e.g. the number of VMs with assigned devices that perform DMA requests with PASID. This patch is nowhere near its completion, it merely provides the basic functionality for resource distribution and cgroup hierarchy organizational changes. Since this is part of a greater effort to enable Shared Virtual Address (SVA) virtualization. We would like to have a direction check and collect feedback early. For details, please refer to the documentation: Documentation/admin-guide/cgroup-v1/ioasids.rst Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Chen Zhuo <sagazchen@tencent.com> Signed-off-by: Xinghui Li <korantli@tencent.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| calibrate.c | ||
| do_mounts.c | ||
| do_mounts.h | ||
| do_mounts_initrd.c | ||
| do_mounts_md.c | ||
| do_mounts_rd.c | ||
| init_task.c | ||
| initramfs.c | ||
| main.c | ||
| noinitramfs.c | ||
| version.c | ||