/* * Copyright (C) 2013 - Virtual Open Systems * Author: Antonios Motakis * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include "vfio_platform_private.h" #define DRIVER_VERSION "0.10" #define DRIVER_AUTHOR "Antonios Motakis " #define DRIVER_DESC "VFIO for platform devices - User Level meta-driver" static bool reset_required = true; module_param(reset_required, bool, 0444); MODULE_PARM_DESC(reset_required, "override reset requirement (default: 1)"); /* probing devices from the linux platform bus */ static struct resource *get_platform_resource(struct vfio_platform_device *vdev, int num) { struct platform_device *dev = (struct platform_device *) vdev->opaque; int i; for (i = 0; i < dev->num_resources; i++) { struct resource *r = &dev->resource[i]; if (resource_type(r) & (IORESOURCE_MEM|IORESOURCE_IO)) { if (!num) return r; num--; } } return NULL; } static int get_platform_irq(struct vfio_platform_device *vdev, int i) { struct platform_device *pdev = (struct platform_device *) vdev->opaque; return platform_get_irq(pdev, i); } static int vfio_platform_probe(struct platform_device *pdev) { struct vfio_platform_device *vdev; int ret; vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); if (!vdev) return -ENOMEM; vdev->opaque = (void *) pdev; vdev->name = pdev->name; vdev->flags = VFIO_DEVICE_FLAGS_PLATFORM; vdev->get_resource = get_platform_resource; vdev->get_irq = get_platform_irq; vdev->parent_module = THIS_MODULE; vdev->reset_required = reset_required; ret = vfio_platform_probe_common(vdev, &pdev->dev); if (ret) kfree(vdev); return ret; } static int vfio_platform_remove(struct platform_device *pdev) { struct vfio_platform_device *vdev; vdev = vfio_platform_remove_common(&pdev->dev); if (vdev) { kfree(vdev); return 0; } return -EINVAL; } static struct platform_driver vfio_platform_driver = { .probe = vfio_platform_probe, .remove = vfio_platform_remove, .driver = { .name = "vfio-platform", }, }; module_platform_driver(vfio_platform_driver); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); ch' size='10' name='q' value=''/>
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authorPeter Zijlstra <peterz@infradead.org>2017-01-26 23:15:08 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-30 11:41:26 +0100
commit0b3589be9b98994ce3d5aeca52445d1f5627c4ba (patch)
tree85d0d9b3ac902af2c938b19a566884caf8d00323 /net/packet/Kconfig
parenta76a82a3e38c8d3fb6499e3dfaeb0949241ab588 (diff)
perf/core: Fix PERF_RECORD_MMAP2 prot/flags for anonymous memory
Andres reported that MMAP2 records for anonymous memory always have their protection field 0. Turns out, someone daft put the prot/flags generation code in the file branch, leaving them unset for anonymous memory. Reported-by: Andres Freund <andres@anarazel.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Don Zickus <dzickus@redhat.com Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@kernel.org Cc: anton@ozlabs.org Cc: namhyung@kernel.org Cc: stable@vger.kernel.org # v3.16+ Fixes: f972eb63b100 ("perf: Pass protection and flags bits through mmap2 interface") Link: http://lkml.kernel.org/r/20170126221508.GF6536@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/packet/Kconfig')