1 files changed, 0 insertions, 199 deletions
diff --git a/samples/test_mmap.c b/samples/test_mmap.c
deleted file mode 100644
index 02c32f1..0000000
--- a/samples/test_mmap.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * Userspace mediated device sample application
- *
- * Copyright (c) 2019, Nutanix Inc. All rights reserved.
- *     Author: Thanos Makatos <thanos@nutanix.com>
- *             Swapnil Ingle <swapnil.ingle@nutanix.com>
- *             Felipe Franciosi <felipe@nutanix.com>
- *
- *  Redistribution and use in source and binary forms, with or without
- *  modification, are permitted provided that the following conditions are met:
- *      * Redistributions of source code must retain the above copyright
- *        notice, this list of conditions and the following disclaimer.
- *      * Redistributions in binary form must reproduce the above copyright
- *        notice, this list of conditions and the following disclaimer in the
- *        documentation and/or other materials provided with the distribution.
- *      * Neither the name of Nutanix nor the names of its contributors may be
- *        used to endorse or promote products derived from this software without
- *        specific prior written permission.
- *
- *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- *  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
- *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- *  DAMAGE.
- *
- */
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <stdbool.h>
-#include <string.h>
-#include <linux/vfio.h>
-#include <limits.h>
-#include <assert.h>
-#include <sys/ioctl.h>
-#include <inttypes.h>
-
-#define VFIO_PATH           "/dev/vfio/"
-#define VFIO_CTR_PATH       VFIO_PATH "vfio"
-#define SYSFS_PCI_DEV_PATH  "/sys/bus/pci/devices/"
-#define SYSFS_IOMMU_GROUP   "/iommu_group"
-
-static int
-pci_group_id(const char *bdf)
-{
-	char *dev_path;
-	char group_path[PATH_MAX];
-	int group_id;
-
-	assert(bdf);
-
-	asprintf(&dev_path, SYSFS_PCI_DEV_PATH "%s" SYSFS_IOMMU_GROUP, bdf);
-	memset(group_path, 0, sizeof(group_path));
-	readlink(dev_path, group_path, sizeof(group_path));
-	free(dev_path);
-	sscanf(basename(group_path), "%d", &group_id);
-	return group_id;
-}
-
-static inline void*
-test_map_dma(const int fd, const unsigned long size, const unsigned long iova)
-{
-	int err;
-	struct vfio_iommu_type1_dma_map dma_map = {
-		.argsz = sizeof(dma_map),
-		.size = size,
-		.iova = iova,
-		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
-	};
-
-	/* Allocate some space and setup a DMA mapping */
-	/* FIXME it *must* be MAP_SHARED */
-	dma_map.vaddr = (unsigned long long)mmap(0, size, PROT_READ | PROT_WRITE,
-			     MAP_SHARED | MAP_ANONYMOUS, 0, 0);
-	if (dma_map.vaddr == (unsigned long)MAP_FAILED) {
-		perror("failed to map DMA");
-		return NULL;
-	}
-	printf("%llx\n", dma_map.vaddr);
-	strcpy((char*)dma_map.vaddr, "foo");
-
-	fprintf(stderr, "attempting to MAP_DMA IOVA=%llx\n", dma_map.iova);
-	
-	err = ioctl(fd, VFIO_IOMMU_MAP_DMA, &dma_map);
-	if (err) {
-		fprintf(stderr, "failed to MAP_DMA: %d (errno=%d)", err, errno);
-		return NULL;
-	}
-	printf("[%s]\n", (char*)dma_map.vaddr);
-
-	return (void*)dma_map.vaddr;
-}
-
-static inline void
-test_unmap_dma(const int fd, const unsigned long size, const unsigned long iova)
-{
-	int err;
-	struct vfio_iommu_type1_dma_unmap dma_unmap = {
-		.argsz = sizeof dma_unmap,
-		.size = size,
-		.iova = iova,
-		.flags = 0
-	};
-
-	err = ioctl(fd, VFIO_IOMMU_UNMAP_DMA, &dma_unmap);
-	if (err) {
-		perror("UNMAP_DMA\n");
-		return;
-	}
-	printf("unmapped IOVA=%llx\n", dma_unmap.iova);
-}
-
-int main(int argc, char * argv[])
-{
-	int err, vfio_ctr_fd, vfio_grp_fd, vfio_dev_fd;
-	char *grp_path;
-#ifdef DEBUG
-	struct vfio_group_status grp_status;
-#endif
-	struct vfio_iommu_type1_info iommu_info;
-	void *dma_map_addr = NULL;
-
-	if (argc != 2) {
-		printf("Usage: %s <device bdf in full>\n", argv[0]);
-		printf("   ex: %s 0000:82:00.0\n", argv[0]);
-		return EXIT_FAILURE;
-	}
-
-	vfio_ctr_fd = open(VFIO_CTR_PATH, O_RDWR);
-	assert(vfio_ctr_fd >= 0);
-
-#ifdef DEBUG
-	err = ioctl(vfio_ctr_fd, VFIO_GET_API_VERSION);
-	assert(err == VFIO_API_VERSION);
-	err = ioctl(vfio_ctr_fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU);
-	assert(err == 1);
-#endif
-
-	// Open the VFIO entry for this device's IOMMU GROUP.
-	err = asprintf(&grp_path, VFIO_PATH "%d", pci_group_id(argv[1]));
-	assert(err > 0);
-	vfio_grp_fd = open(grp_path, O_RDWR);
-	assert(vfio_grp_fd >= 0);
-	free(grp_path);
-
-#ifdef DEBUG
-	// Ensure group is viable.
-	memset(&grp_status, 0, sizeof(grp_status));
-	grp_status.argsz = sizeof(grp_status);
-	err = ioctl(vfio_grp_fd, VFIO_GROUP_GET_STATUS, &grp_status);
-	assert(!err);
-	assert((grp_status.flags & VFIO_GROUP_FLAGS_VIABLE) == 1);
-#endif
-
-	// Add the group to the container.
-	err = ioctl(vfio_grp_fd, VFIO_GROUP_SET_CONTAINER, &vfio_ctr_fd);
-	assert(!err);
-
-	// Enable IOMMU type 1 on container.
-	err = ioctl(vfio_ctr_fd, VFIO_SET_IOMMU, VFIO_TYPE1v2_IOMMU);
-	assert(!err);
-
-	// Fetch IOMMU information from VFIO.
-	memset(&iommu_info, 0, sizeof(iommu_info));
-	iommu_info.argsz = sizeof(iommu_info);
-	err = ioctl(vfio_ctr_fd, VFIO_IOMMU_GET_INFO, &iommu_info);
-	assert(!err);
-
-	// Get a device fd from VFIO.
-	vfio_dev_fd = ioctl(vfio_grp_fd, VFIO_GROUP_GET_DEVICE_FD, argv[1]);
-	assert(vfio_dev_fd >= 0);
-
-	void *p;
-	p = mmap(NULL, sysconf(_SC_PAGESIZE), PROT_READ | PROT_WRITE,
-			MAP_SHARED, vfio_dev_fd, 0);
-	assert(p != MAP_FAILED);
-	printf("%p\n", p);
-	printf("%s\n", (char*)p);
-
-	dma_map_addr = test_map_dma(vfio_ctr_fd, 4096, 0xdeadbeef000);
-	if (!dma_map_addr)
-		exit(EXIT_FAILURE);
-	test_unmap_dma(vfio_ctr_fd, 4096, 0xdeadbeef000);
-
-	return 0;
-}