1007 lines
31 KiB
C
1007 lines
31 KiB
C
/*
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* QTest testcase for Vhost-user Block Device
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*
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* Based on tests/qtest//virtio-blk-test.c
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* Copyright (c) 2014 SUSE LINUX Products GmbH
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* Copyright (c) 2014 Marc Marí
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* Copyright (c) 2020 Coiby Xu
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "libqtest-single.h"
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#include "qemu/bswap.h"
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#include "qemu/module.h"
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#include "standard-headers/linux/virtio_blk.h"
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#include "standard-headers/linux/virtio_pci.h"
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#include "libqos/qgraph.h"
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#include "libqos/vhost-user-blk.h"
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#include "libqos/libqos-pc.h"
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#define TEST_IMAGE_SIZE (64 * 1024 * 1024)
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#define QVIRTIO_BLK_TIMEOUT_US (30 * 1000 * 1000)
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#define PCI_SLOT_HP 0x06
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typedef struct {
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pid_t pid;
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} QemuStorageDaemonState;
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typedef struct QVirtioBlkReq {
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uint32_t type;
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uint32_t ioprio;
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uint64_t sector;
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char *data;
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uint8_t status;
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} QVirtioBlkReq;
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#if HOST_BIG_ENDIAN
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static const bool host_is_big_endian = true;
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#else
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static const bool host_is_big_endian; /* false */
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#endif
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static inline void virtio_blk_fix_request(QVirtioDevice *d, QVirtioBlkReq *req)
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{
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if (qvirtio_is_big_endian(d) != host_is_big_endian) {
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req->type = bswap32(req->type);
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req->ioprio = bswap32(req->ioprio);
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req->sector = bswap64(req->sector);
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}
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}
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static inline void virtio_blk_fix_dwz_hdr(QVirtioDevice *d,
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struct virtio_blk_discard_write_zeroes *dwz_hdr)
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{
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if (qvirtio_is_big_endian(d) != host_is_big_endian) {
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dwz_hdr->sector = bswap64(dwz_hdr->sector);
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dwz_hdr->num_sectors = bswap32(dwz_hdr->num_sectors);
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dwz_hdr->flags = bswap32(dwz_hdr->flags);
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}
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}
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static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d,
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QVirtioBlkReq *req, uint64_t data_size)
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{
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uint64_t addr;
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uint8_t status = 0xFF;
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QTestState *qts = global_qtest;
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switch (req->type) {
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case VIRTIO_BLK_T_IN:
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case VIRTIO_BLK_T_OUT:
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g_assert_cmpuint(data_size % 512, ==, 0);
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break;
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case VIRTIO_BLK_T_DISCARD:
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case VIRTIO_BLK_T_WRITE_ZEROES:
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g_assert_cmpuint(data_size %
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sizeof(struct virtio_blk_discard_write_zeroes), ==, 0);
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break;
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default:
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g_assert_cmpuint(data_size, ==, 0);
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}
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addr = guest_alloc(alloc, sizeof(*req) + data_size);
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virtio_blk_fix_request(d, req);
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qtest_memwrite(qts, addr, req, 16);
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qtest_memwrite(qts, addr + 16, req->data, data_size);
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qtest_memwrite(qts, addr + 16 + data_size, &status, sizeof(status));
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return addr;
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}
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static void test_invalid_discard_write_zeroes(QVirtioDevice *dev,
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QGuestAllocator *alloc,
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QTestState *qts,
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QVirtQueue *vq,
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uint32_t type)
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{
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QVirtioBlkReq req;
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struct virtio_blk_discard_write_zeroes dwz_hdr;
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struct virtio_blk_discard_write_zeroes dwz_hdr2[2];
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uint64_t req_addr;
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uint32_t free_head;
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uint8_t status;
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/* More than one dwz is not supported */
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req.type = type;
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req.data = (char *) dwz_hdr2;
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dwz_hdr2[0].sector = 0;
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dwz_hdr2[0].num_sectors = 1;
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dwz_hdr2[0].flags = 0;
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dwz_hdr2[1].sector = 1;
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dwz_hdr2[1].num_sectors = 1;
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dwz_hdr2[1].flags = 0;
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr2[0]);
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr2[1]);
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req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr2));
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr2), false, true);
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qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr2), 1, true,
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false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 16 + sizeof(dwz_hdr2));
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g_assert_cmpint(status, ==, VIRTIO_BLK_S_UNSUPP);
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guest_free(alloc, req_addr);
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/* num_sectors must be less than config->max_write_zeroes_sectors */
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req.type = type;
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req.data = (char *) &dwz_hdr;
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dwz_hdr.sector = 0;
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dwz_hdr.num_sectors = 0xffffffff;
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dwz_hdr.flags = 0;
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
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req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
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qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true,
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false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 16 + sizeof(dwz_hdr));
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g_assert_cmpint(status, ==, VIRTIO_BLK_S_IOERR);
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guest_free(alloc, req_addr);
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/* sector must be less than the device capacity */
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req.type = type;
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req.data = (char *) &dwz_hdr;
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dwz_hdr.sector = TEST_IMAGE_SIZE / 512 + 1;
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dwz_hdr.num_sectors = 1;
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dwz_hdr.flags = 0;
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
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req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
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qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true,
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false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 16 + sizeof(dwz_hdr));
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g_assert_cmpint(status, ==, VIRTIO_BLK_S_IOERR);
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guest_free(alloc, req_addr);
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/* reserved flag bits must be zero */
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req.type = type;
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req.data = (char *) &dwz_hdr;
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dwz_hdr.sector = 0;
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dwz_hdr.num_sectors = 1;
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dwz_hdr.flags = ~VIRTIO_BLK_WRITE_ZEROES_FLAG_UNMAP;
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
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req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
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qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true,
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false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 16 + sizeof(dwz_hdr));
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g_assert_cmpint(status, ==, VIRTIO_BLK_S_UNSUPP);
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guest_free(alloc, req_addr);
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}
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/* Returns the request virtqueue so the caller can perform further tests */
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static QVirtQueue *test_basic(QVirtioDevice *dev, QGuestAllocator *alloc)
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{
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QVirtioBlkReq req;
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uint64_t req_addr;
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uint64_t capacity;
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uint64_t features;
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uint32_t free_head;
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uint8_t status;
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char *data;
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QTestState *qts = global_qtest;
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QVirtQueue *vq;
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features = qvirtio_get_features(dev);
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features = features & ~(QVIRTIO_F_BAD_FEATURE |
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(1u << VIRTIO_RING_F_INDIRECT_DESC) |
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(1u << VIRTIO_RING_F_EVENT_IDX) |
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(1u << VIRTIO_BLK_F_SCSI));
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qvirtio_set_features(dev, features);
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capacity = qvirtio_config_readq(dev, 0);
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g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
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vq = qvirtqueue_setup(dev, alloc, 0);
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qvirtio_set_driver_ok(dev);
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/* Write and read with 3 descriptor layout */
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/* Write request */
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req.type = VIRTIO_BLK_T_OUT;
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req.ioprio = 1;
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req.sector = 0;
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req.data = g_malloc0(512);
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strcpy(req.data, "TEST");
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req_addr = virtio_blk_request(alloc, dev, &req, 512);
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g_free(req.data);
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
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qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 528);
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g_assert_cmpint(status, ==, 0);
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guest_free(alloc, req_addr);
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/* Read request */
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req.type = VIRTIO_BLK_T_IN;
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req.ioprio = 1;
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req.sector = 0;
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req.data = g_malloc0(512);
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req_addr = virtio_blk_request(alloc, dev, &req, 512);
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g_free(req.data);
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
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qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 528);
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g_assert_cmpint(status, ==, 0);
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data = g_malloc0(512);
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qtest_memread(qts, req_addr + 16, data, 512);
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g_assert_cmpstr(data, ==, "TEST");
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g_free(data);
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guest_free(alloc, req_addr);
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if (features & (1u << VIRTIO_BLK_F_WRITE_ZEROES)) {
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struct virtio_blk_discard_write_zeroes dwz_hdr;
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void *expected;
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/*
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* WRITE_ZEROES request on the same sector of previous test where
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* we wrote "TEST".
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*/
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req.type = VIRTIO_BLK_T_WRITE_ZEROES;
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req.data = (char *) &dwz_hdr;
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dwz_hdr.sector = 0;
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dwz_hdr.num_sectors = 1;
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dwz_hdr.flags = 0;
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
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req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
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qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true,
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false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 16 + sizeof(dwz_hdr));
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g_assert_cmpint(status, ==, 0);
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guest_free(alloc, req_addr);
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/* Read request to check if the sector contains all zeroes */
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req.type = VIRTIO_BLK_T_IN;
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req.ioprio = 1;
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req.sector = 0;
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req.data = g_malloc0(512);
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req_addr = virtio_blk_request(alloc, dev, &req, 512);
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g_free(req.data);
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
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qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 528);
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g_assert_cmpint(status, ==, 0);
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data = g_malloc(512);
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expected = g_malloc0(512);
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qtest_memread(qts, req_addr + 16, data, 512);
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g_assert_cmpmem(data, 512, expected, 512);
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g_free(expected);
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g_free(data);
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guest_free(alloc, req_addr);
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test_invalid_discard_write_zeroes(dev, alloc, qts, vq,
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VIRTIO_BLK_T_WRITE_ZEROES);
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}
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if (features & (1u << VIRTIO_BLK_F_DISCARD)) {
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struct virtio_blk_discard_write_zeroes dwz_hdr;
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req.type = VIRTIO_BLK_T_DISCARD;
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req.data = (char *) &dwz_hdr;
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dwz_hdr.sector = 0;
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dwz_hdr.num_sectors = 1;
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dwz_hdr.flags = 0;
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virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
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req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
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qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr),
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1, true, false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 16 + sizeof(dwz_hdr));
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g_assert_cmpint(status, ==, 0);
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guest_free(alloc, req_addr);
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test_invalid_discard_write_zeroes(dev, alloc, qts, vq,
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VIRTIO_BLK_T_DISCARD);
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}
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if (features & (1u << VIRTIO_F_ANY_LAYOUT)) {
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/* Write and read with 2 descriptor layout */
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/* Write request */
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req.type = VIRTIO_BLK_T_OUT;
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req.ioprio = 1;
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req.sector = 1;
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req.data = g_malloc0(512);
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strcpy(req.data, "TEST");
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req_addr = virtio_blk_request(alloc, dev, &req, 512);
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g_free(req.data);
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free_head = qvirtqueue_add(qts, vq, req_addr, 528, false, true);
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qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 528);
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g_assert_cmpint(status, ==, 0);
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guest_free(alloc, req_addr);
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/* Read request */
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req.type = VIRTIO_BLK_T_IN;
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req.ioprio = 1;
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req.sector = 1;
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req.data = g_malloc0(512);
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req_addr = virtio_blk_request(alloc, dev, &req, 512);
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g_free(req.data);
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free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
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qvirtqueue_add(qts, vq, req_addr + 16, 513, true, false);
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qvirtqueue_kick(qts, dev, vq, free_head);
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qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
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QVIRTIO_BLK_TIMEOUT_US);
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status = readb(req_addr + 528);
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g_assert_cmpint(status, ==, 0);
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data = g_malloc0(512);
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qtest_memread(qts, req_addr + 16, data, 512);
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g_assert_cmpstr(data, ==, "TEST");
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g_free(data);
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guest_free(alloc, req_addr);
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}
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return vq;
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}
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static void basic(void *obj, void *data, QGuestAllocator *t_alloc)
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{
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QVhostUserBlk *blk_if = obj;
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QVirtQueue *vq;
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vq = test_basic(blk_if->vdev, t_alloc);
|
|
qvirtqueue_cleanup(blk_if->vdev->bus, vq, t_alloc);
|
|
|
|
}
|
|
|
|
static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc)
|
|
{
|
|
QVirtQueue *vq;
|
|
QVhostUserBlk *blk_if = obj;
|
|
QVirtioDevice *dev = blk_if->vdev;
|
|
QVirtioBlkReq req;
|
|
QVRingIndirectDesc *indirect;
|
|
uint64_t req_addr;
|
|
uint64_t capacity;
|
|
uint64_t features;
|
|
uint32_t free_head;
|
|
uint8_t status;
|
|
char *data;
|
|
QTestState *qts = global_qtest;
|
|
|
|
features = qvirtio_get_features(dev);
|
|
g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0);
|
|
features = features & ~(QVIRTIO_F_BAD_FEATURE |
|
|
(1u << VIRTIO_RING_F_EVENT_IDX) |
|
|
(1u << VIRTIO_BLK_F_SCSI));
|
|
qvirtio_set_features(dev, features);
|
|
|
|
capacity = qvirtio_config_readq(dev, 0);
|
|
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
|
|
|
|
vq = qvirtqueue_setup(dev, t_alloc, 0);
|
|
qvirtio_set_driver_ok(dev);
|
|
|
|
/* Write request */
|
|
req.type = VIRTIO_BLK_T_OUT;
|
|
req.ioprio = 1;
|
|
req.sector = 0;
|
|
req.data = g_malloc0(512);
|
|
strcpy(req.data, "TEST");
|
|
|
|
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
|
|
|
|
g_free(req.data);
|
|
|
|
indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2);
|
|
qvring_indirect_desc_add(dev, qts, indirect, req_addr, 528, false);
|
|
qvring_indirect_desc_add(dev, qts, indirect, req_addr + 528, 1, true);
|
|
free_head = qvirtqueue_add_indirect(qts, vq, indirect);
|
|
qvirtqueue_kick(qts, dev, vq, free_head);
|
|
|
|
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
|
|
QVIRTIO_BLK_TIMEOUT_US);
|
|
status = readb(req_addr + 528);
|
|
g_assert_cmpint(status, ==, 0);
|
|
|
|
g_free(indirect);
|
|
guest_free(t_alloc, req_addr);
|
|
|
|
/* Read request */
|
|
req.type = VIRTIO_BLK_T_IN;
|
|
req.ioprio = 1;
|
|
req.sector = 0;
|
|
req.data = g_malloc0(512);
|
|
strcpy(req.data, "TEST");
|
|
|
|
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
|
|
|
|
g_free(req.data);
|
|
|
|
indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2);
|
|
qvring_indirect_desc_add(dev, qts, indirect, req_addr, 16, false);
|
|
qvring_indirect_desc_add(dev, qts, indirect, req_addr + 16, 513, true);
|
|
free_head = qvirtqueue_add_indirect(qts, vq, indirect);
|
|
qvirtqueue_kick(qts, dev, vq, free_head);
|
|
|
|
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
|
|
QVIRTIO_BLK_TIMEOUT_US);
|
|
status = readb(req_addr + 528);
|
|
g_assert_cmpint(status, ==, 0);
|
|
|
|
data = g_malloc0(512);
|
|
qtest_memread(qts, req_addr + 16, data, 512);
|
|
g_assert_cmpstr(data, ==, "TEST");
|
|
g_free(data);
|
|
|
|
g_free(indirect);
|
|
guest_free(t_alloc, req_addr);
|
|
qvirtqueue_cleanup(dev->bus, vq, t_alloc);
|
|
}
|
|
|
|
static void idx(void *obj, void *u_data, QGuestAllocator *t_alloc)
|
|
{
|
|
QVirtQueue *vq;
|
|
QVhostUserBlkPCI *blk = obj;
|
|
QVirtioPCIDevice *pdev = &blk->pci_vdev;
|
|
QVirtioDevice *dev = &pdev->vdev;
|
|
QVirtioBlkReq req;
|
|
uint64_t req_addr;
|
|
uint64_t capacity;
|
|
uint64_t features;
|
|
uint32_t free_head;
|
|
uint32_t write_head;
|
|
uint32_t desc_idx;
|
|
uint8_t status;
|
|
char *data;
|
|
QOSGraphObject *blk_object = obj;
|
|
QPCIDevice *pci_dev = blk_object->get_driver(blk_object, "pci-device");
|
|
QTestState *qts = global_qtest;
|
|
|
|
if (qpci_check_buggy_msi(pci_dev)) {
|
|
return;
|
|
}
|
|
|
|
qpci_msix_enable(pdev->pdev);
|
|
qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0);
|
|
|
|
features = qvirtio_get_features(dev);
|
|
features = features & ~(QVIRTIO_F_BAD_FEATURE |
|
|
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
|
|
(1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
|
|
(1u << VIRTIO_BLK_F_SCSI));
|
|
qvirtio_set_features(dev, features);
|
|
|
|
capacity = qvirtio_config_readq(dev, 0);
|
|
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
|
|
|
|
vq = qvirtqueue_setup(dev, t_alloc, 0);
|
|
qvirtqueue_pci_msix_setup(pdev, (QVirtQueuePCI *)vq, t_alloc, 1);
|
|
|
|
qvirtio_set_driver_ok(dev);
|
|
|
|
/*
|
|
* libvhost-user signals the call fd in VHOST_USER_SET_VRING_CALL, make
|
|
* sure to wait for the isr here so we don't race and confuse it later on.
|
|
*/
|
|
qvirtio_wait_queue_isr(qts, dev, vq, QVIRTIO_BLK_TIMEOUT_US);
|
|
|
|
/* Write request */
|
|
req.type = VIRTIO_BLK_T_OUT;
|
|
req.ioprio = 1;
|
|
req.sector = 0;
|
|
req.data = g_malloc0(512);
|
|
strcpy(req.data, "TEST");
|
|
|
|
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
|
|
|
|
g_free(req.data);
|
|
|
|
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
|
|
qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
|
|
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
|
|
qvirtqueue_kick(qts, dev, vq, free_head);
|
|
|
|
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
|
|
QVIRTIO_BLK_TIMEOUT_US);
|
|
|
|
/* Write request */
|
|
req.type = VIRTIO_BLK_T_OUT;
|
|
req.ioprio = 1;
|
|
req.sector = 1;
|
|
req.data = g_malloc0(512);
|
|
strcpy(req.data, "TEST");
|
|
|
|
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
|
|
|
|
g_free(req.data);
|
|
|
|
/* Notify after processing the third request */
|
|
qvirtqueue_set_used_event(qts, vq, 2);
|
|
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
|
|
qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
|
|
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
|
|
qvirtqueue_kick(qts, dev, vq, free_head);
|
|
write_head = free_head;
|
|
|
|
/* No notification expected */
|
|
status = qvirtio_wait_status_byte_no_isr(qts, dev,
|
|
vq, req_addr + 528,
|
|
QVIRTIO_BLK_TIMEOUT_US);
|
|
g_assert_cmpint(status, ==, 0);
|
|
|
|
guest_free(t_alloc, req_addr);
|
|
|
|
/* Read request */
|
|
req.type = VIRTIO_BLK_T_IN;
|
|
req.ioprio = 1;
|
|
req.sector = 1;
|
|
req.data = g_malloc0(512);
|
|
|
|
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
|
|
|
|
g_free(req.data);
|
|
|
|
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
|
|
qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
|
|
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
|
|
|
|
qvirtqueue_kick(qts, dev, vq, free_head);
|
|
|
|
/* We get just one notification for both requests */
|
|
qvirtio_wait_used_elem(qts, dev, vq, write_head, NULL,
|
|
QVIRTIO_BLK_TIMEOUT_US);
|
|
g_assert(qvirtqueue_get_buf(qts, vq, &desc_idx, NULL));
|
|
g_assert_cmpint(desc_idx, ==, free_head);
|
|
|
|
status = readb(req_addr + 528);
|
|
g_assert_cmpint(status, ==, 0);
|
|
|
|
data = g_malloc0(512);
|
|
qtest_memread(qts, req_addr + 16, data, 512);
|
|
g_assert_cmpstr(data, ==, "TEST");
|
|
g_free(data);
|
|
|
|
guest_free(t_alloc, req_addr);
|
|
|
|
/* End test */
|
|
qpci_msix_disable(pdev->pdev);
|
|
|
|
qvirtqueue_cleanup(dev->bus, vq, t_alloc);
|
|
}
|
|
|
|
static void pci_hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
|
|
{
|
|
QVirtioPCIDevice *dev1 = obj;
|
|
QVirtioPCIDevice *dev;
|
|
QTestState *qts = dev1->pdev->bus->qts;
|
|
|
|
if (dev1->pdev->bus->not_hotpluggable) {
|
|
g_test_skip("pci bus does not support hotplug");
|
|
return;
|
|
}
|
|
|
|
/* plug secondary disk */
|
|
qtest_qmp_device_add(qts, "vhost-user-blk-pci", "drv1",
|
|
"{'addr': %s, 'chardev': 'char2'}",
|
|
stringify(PCI_SLOT_HP) ".0");
|
|
|
|
dev = virtio_pci_new(dev1->pdev->bus,
|
|
&(QPCIAddress) { .devfn = QPCI_DEVFN(PCI_SLOT_HP, 0)
|
|
});
|
|
g_assert_nonnull(dev);
|
|
g_assert_cmpint(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
|
|
qvirtio_pci_device_disable(dev);
|
|
qos_object_destroy((QOSGraphObject *)dev);
|
|
|
|
/* unplug secondary disk */
|
|
qpci_unplug_acpi_device_test(qts, "drv1", PCI_SLOT_HP);
|
|
}
|
|
|
|
static void multiqueue(void *obj, void *data, QGuestAllocator *t_alloc)
|
|
{
|
|
QVirtioPCIDevice *pdev1 = obj;
|
|
QVirtioDevice *dev1 = &pdev1->vdev;
|
|
QVirtioPCIDevice *pdev8;
|
|
QVirtioDevice *dev8;
|
|
QTestState *qts = pdev1->pdev->bus->qts;
|
|
uint64_t features;
|
|
uint16_t num_queues;
|
|
|
|
if (pdev1->pdev->bus->not_hotpluggable) {
|
|
g_test_skip("bus pci.0 does not support hotplug");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* The primary device has 1 queue and VIRTIO_BLK_F_MQ is not enabled. The
|
|
* VIRTIO specification allows VIRTIO_BLK_F_MQ to be enabled when there is
|
|
* only 1 virtqueue, but --device vhost-user-blk-pci doesn't do this (which
|
|
* is also spec-compliant).
|
|
*/
|
|
features = qvirtio_get_features(dev1);
|
|
g_assert_cmpint(features & (1u << VIRTIO_BLK_F_MQ), ==, 0);
|
|
features = features & ~(QVIRTIO_F_BAD_FEATURE |
|
|
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
|
|
(1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
|
|
(1u << VIRTIO_BLK_F_SCSI));
|
|
qvirtio_set_features(dev1, features);
|
|
|
|
/* Hotplug a secondary device with 8 queues */
|
|
qtest_qmp_device_add(qts, "vhost-user-blk-pci", "drv1",
|
|
"{'addr': %s, 'chardev': 'char2', 'num-queues': 8}",
|
|
stringify(PCI_SLOT_HP) ".0");
|
|
|
|
pdev8 = virtio_pci_new(pdev1->pdev->bus,
|
|
&(QPCIAddress) {
|
|
.devfn = QPCI_DEVFN(PCI_SLOT_HP, 0)
|
|
});
|
|
g_assert_nonnull(pdev8);
|
|
g_assert_cmpint(pdev8->vdev.device_type, ==, VIRTIO_ID_BLOCK);
|
|
|
|
qos_object_start_hw(&pdev8->obj);
|
|
|
|
dev8 = &pdev8->vdev;
|
|
features = qvirtio_get_features(dev8);
|
|
g_assert_cmpint(features & (1u << VIRTIO_BLK_F_MQ),
|
|
==,
|
|
(1u << VIRTIO_BLK_F_MQ));
|
|
features = features & ~(QVIRTIO_F_BAD_FEATURE |
|
|
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
|
|
(1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
|
|
(1u << VIRTIO_BLK_F_SCSI) |
|
|
(1u << VIRTIO_BLK_F_MQ));
|
|
qvirtio_set_features(dev8, features);
|
|
|
|
num_queues = qvirtio_config_readw(dev8,
|
|
offsetof(struct virtio_blk_config, num_queues));
|
|
g_assert_cmpint(num_queues, ==, 8);
|
|
|
|
qvirtio_pci_device_disable(pdev8);
|
|
qos_object_destroy(&pdev8->obj);
|
|
|
|
/* unplug secondary disk */
|
|
qpci_unplug_acpi_device_test(qts, "drv1", PCI_SLOT_HP);
|
|
}
|
|
|
|
/*
|
|
* Check that setting the vring addr on a non-existent virtqueue does
|
|
* not crash.
|
|
*/
|
|
static void test_nonexistent_virtqueue(void *obj, void *data,
|
|
QGuestAllocator *t_alloc)
|
|
{
|
|
QVhostUserBlkPCI *blk = obj;
|
|
QVirtioPCIDevice *pdev = &blk->pci_vdev;
|
|
QPCIBar bar0;
|
|
QPCIDevice *dev;
|
|
|
|
dev = qpci_device_find(pdev->pdev->bus, QPCI_DEVFN(4, 0));
|
|
g_assert(dev != NULL);
|
|
qpci_device_enable(dev);
|
|
|
|
bar0 = qpci_iomap(dev, 0, NULL);
|
|
|
|
qpci_io_writeb(dev, bar0, VIRTIO_PCI_QUEUE_SEL, 2);
|
|
qpci_io_writel(dev, bar0, VIRTIO_PCI_QUEUE_PFN, 1);
|
|
|
|
g_free(dev);
|
|
}
|
|
|
|
static const char *qtest_qemu_storage_daemon_binary(void)
|
|
{
|
|
const char *qemu_storage_daemon_bin;
|
|
|
|
qemu_storage_daemon_bin = getenv("QTEST_QEMU_STORAGE_DAEMON_BINARY");
|
|
if (!qemu_storage_daemon_bin) {
|
|
fprintf(stderr, "Environment variable "
|
|
"QTEST_QEMU_STORAGE_DAEMON_BINARY required\n");
|
|
exit(0);
|
|
}
|
|
|
|
/* If we've got a path to the binary, check whether we can access it */
|
|
if (strchr(qemu_storage_daemon_bin, '/') &&
|
|
access(qemu_storage_daemon_bin, X_OK) != 0) {
|
|
fprintf(stderr, "ERROR: '%s' is not accessible\n",
|
|
qemu_storage_daemon_bin);
|
|
exit(1);
|
|
}
|
|
|
|
return qemu_storage_daemon_bin;
|
|
}
|
|
|
|
/* g_test_queue_destroy() cleanup function for files */
|
|
static void destroy_file(void *path)
|
|
{
|
|
unlink(path);
|
|
g_free(path);
|
|
qos_invalidate_command_line();
|
|
}
|
|
|
|
static char *drive_create(void)
|
|
{
|
|
int fd, ret;
|
|
/** vhost-user-blk won't recognize drive located in /tmp */
|
|
char *t_path = g_strdup("qtest.XXXXXX");
|
|
|
|
/** Create a temporary raw image */
|
|
fd = mkstemp(t_path);
|
|
g_assert_cmpint(fd, >=, 0);
|
|
ret = ftruncate(fd, TEST_IMAGE_SIZE);
|
|
g_assert_cmpint(ret, ==, 0);
|
|
close(fd);
|
|
|
|
g_test_queue_destroy(destroy_file, t_path);
|
|
return t_path;
|
|
}
|
|
|
|
static char *create_listen_socket(int *fd)
|
|
{
|
|
int tmp_fd;
|
|
char *path;
|
|
|
|
/* No race because our pid makes the path unique */
|
|
path = g_strdup_printf("/tmp/qtest-%d-sock.XXXXXX", getpid());
|
|
tmp_fd = mkstemp(path);
|
|
g_assert_cmpint(tmp_fd, >=, 0);
|
|
close(tmp_fd);
|
|
unlink(path);
|
|
|
|
*fd = qtest_socket_server(path);
|
|
g_test_queue_destroy(destroy_file, path);
|
|
return path;
|
|
}
|
|
|
|
/*
|
|
* g_test_queue_destroy() and qtest_add_abrt_handler() cleanup function for
|
|
* qemu-storage-daemon.
|
|
*/
|
|
static void quit_storage_daemon(void *data)
|
|
{
|
|
QemuStorageDaemonState *qsd = data;
|
|
int wstatus;
|
|
pid_t pid;
|
|
|
|
/*
|
|
* If we were invoked as a g_test_queue_destroy() cleanup function we need
|
|
* to remove the abrt handler to avoid being called again if the code below
|
|
* aborts. Also, we must not leave the abrt handler installed after
|
|
* cleanup.
|
|
*/
|
|
qtest_remove_abrt_handler(data);
|
|
|
|
/* Before quitting storage-daemon, quit qemu to avoid dubious messages */
|
|
qtest_kill_qemu(global_qtest);
|
|
|
|
kill(qsd->pid, SIGTERM);
|
|
pid = waitpid(qsd->pid, &wstatus, 0);
|
|
g_assert_cmpint(pid, ==, qsd->pid);
|
|
if (!WIFEXITED(wstatus)) {
|
|
fprintf(stderr, "%s: expected qemu-storage-daemon to exit\n",
|
|
__func__);
|
|
abort();
|
|
}
|
|
if (WEXITSTATUS(wstatus) != 0) {
|
|
fprintf(stderr, "%s: expected qemu-storage-daemon to exit "
|
|
"successfully, got %d\n",
|
|
__func__, WEXITSTATUS(wstatus));
|
|
abort();
|
|
}
|
|
|
|
g_free(data);
|
|
}
|
|
|
|
static void start_vhost_user_blk(GString *cmd_line, int vus_instances,
|
|
int num_queues)
|
|
{
|
|
const char *vhost_user_blk_bin = qtest_qemu_storage_daemon_binary();
|
|
int i;
|
|
gchar *img_path;
|
|
GString *storage_daemon_command = g_string_new(NULL);
|
|
QemuStorageDaemonState *qsd;
|
|
|
|
g_string_append_printf(storage_daemon_command,
|
|
"exec %s ",
|
|
vhost_user_blk_bin);
|
|
|
|
g_string_append_printf(cmd_line,
|
|
" -object memory-backend-memfd,id=mem,size=256M,share=on "
|
|
" -M memory-backend=mem -m 256M ");
|
|
|
|
for (i = 0; i < vus_instances; i++) {
|
|
int fd;
|
|
char *sock_path = create_listen_socket(&fd);
|
|
|
|
/* create image file */
|
|
img_path = drive_create();
|
|
g_string_append_printf(storage_daemon_command,
|
|
"--blockdev driver=file,node-name=disk%d,filename=%s "
|
|
"--export type=vhost-user-blk,id=disk%d,addr.type=fd,addr.str=%d,"
|
|
"node-name=disk%i,writable=on,num-queues=%d ",
|
|
i, img_path, i, fd, i, num_queues);
|
|
|
|
g_string_append_printf(cmd_line, "-chardev socket,id=char%d,path=%s ",
|
|
i + 1, sock_path);
|
|
}
|
|
|
|
g_test_message("starting vhost-user backend: %s",
|
|
storage_daemon_command->str);
|
|
pid_t pid = fork();
|
|
if (pid == 0) {
|
|
/*
|
|
* Close standard file descriptors so tap-driver.pl pipe detects when
|
|
* our parent terminates.
|
|
*/
|
|
close(0);
|
|
close(1);
|
|
open("/dev/null", O_RDONLY);
|
|
open("/dev/null", O_WRONLY);
|
|
|
|
execlp("/bin/sh", "sh", "-c", storage_daemon_command->str, NULL);
|
|
exit(1);
|
|
}
|
|
g_string_free(storage_daemon_command, true);
|
|
|
|
qsd = g_new(QemuStorageDaemonState, 1);
|
|
qsd->pid = pid;
|
|
|
|
/* Make sure qemu-storage-daemon is stopped */
|
|
qtest_add_abrt_handler(quit_storage_daemon, qsd);
|
|
g_test_queue_destroy(quit_storage_daemon, qsd);
|
|
}
|
|
|
|
static void *vhost_user_blk_test_setup(GString *cmd_line, void *arg)
|
|
{
|
|
start_vhost_user_blk(cmd_line, 1, 1);
|
|
return arg;
|
|
}
|
|
|
|
/*
|
|
* Setup for hotplug.
|
|
*
|
|
* Since vhost-user server only serves one vhost-user client one time,
|
|
* another exprot
|
|
*
|
|
*/
|
|
static void *vhost_user_blk_hotplug_test_setup(GString *cmd_line, void *arg)
|
|
{
|
|
/* "-chardev socket,id=char2" is used for pci_hotplug*/
|
|
start_vhost_user_blk(cmd_line, 2, 1);
|
|
return arg;
|
|
}
|
|
|
|
static void *vhost_user_blk_multiqueue_test_setup(GString *cmd_line, void *arg)
|
|
{
|
|
start_vhost_user_blk(cmd_line, 2, 8);
|
|
return arg;
|
|
}
|
|
|
|
static void register_vhost_user_blk_test(void)
|
|
{
|
|
QOSGraphTestOptions opts = {
|
|
.before = vhost_user_blk_test_setup,
|
|
};
|
|
|
|
/*
|
|
* tests for vhost-user-blk and vhost-user-blk-pci
|
|
* The tests are borrowed from tests/virtio-blk-test.c. But some tests
|
|
* regarding block_resize don't work for vhost-user-blk.
|
|
* vhost-user-blk device doesn't have -drive, so tests containing
|
|
* block_resize are also abandoned,
|
|
* - config
|
|
* - resize
|
|
*/
|
|
qos_add_test("basic", "vhost-user-blk", basic, &opts);
|
|
qos_add_test("indirect", "vhost-user-blk", indirect, &opts);
|
|
qos_add_test("idx", "vhost-user-blk-pci", idx, &opts);
|
|
qos_add_test("nxvirtq", "vhost-user-blk-pci",
|
|
test_nonexistent_virtqueue, &opts);
|
|
|
|
opts.before = vhost_user_blk_hotplug_test_setup;
|
|
qos_add_test("hotplug", "vhost-user-blk-pci", pci_hotplug, &opts);
|
|
|
|
opts.before = vhost_user_blk_multiqueue_test_setup;
|
|
qos_add_test("multiqueue", "vhost-user-blk-pci", multiqueue, &opts);
|
|
}
|
|
|
|
libqos_init(register_vhost_user_blk_test);
|