diff options
author | Marc Marí <marc.mari.barcelo@gmail.com> | 2015-02-24 22:21:55 +0100 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2015-03-10 14:02:20 +0100 |
commit | 0a6ed700061fdd86b3c4b71366be42503ac2ce23 (patch) | |
tree | c82db8b2308e48b5a32f4155512c0344e2cbe3f3 | |
parent | 870a306dec0cfdf32c8179acfd2c4d0bfd000d6b (diff) | |
download | qemu-0a6ed700061fdd86b3c4b71366be42503ac2ce23.zip qemu-0a6ed700061fdd86b3c4b71366be42503ac2ce23.tar.gz qemu-0a6ed700061fdd86b3c4b71366be42503ac2ce23.tar.bz2 |
libqos: Add virtio MMIO support
Add virtio MMIO support.
Add virtio-blk-test MMIO test case.
Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1424812915-25728-6-git-send-email-marc.mari.barcelo@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r-- | tests/Makefile | 4 | ||||
-rw-r--r-- | tests/libqos/virtio-mmio.c | 198 | ||||
-rw-r--r-- | tests/libqos/virtio-mmio.h | 46 | ||||
-rw-r--r-- | tests/virtio-blk-test.c | 83 |
4 files changed, 323 insertions, 8 deletions
diff --git a/tests/Makefile b/tests/Makefile index 307035c..fed8096 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -191,6 +191,8 @@ gcov-files-sparc-y += hw/timer/m48t59.c gcov-files-sparc64-y += hw/timer/m48t59.c check-qtest-arm-y = tests/tmp105-test$(EXESUF) gcov-files-arm-y += hw/misc/tmp105.c +check-qtest-arm-y += tests/virtio-blk-test$(EXESUF) +gcov-files-arm-y += arm-softmmu/hw/block/virtio-blk.c check-qtest-ppc-y += tests/boot-order-test$(EXESUF) check-qtest-ppc64-y += tests/boot-order-test$(EXESUF) check-qtest-ppc64-y += tests/spapr-phb-test$(EXESUF) @@ -315,8 +317,8 @@ libqos-pc-obj-y = $(libqos-obj-y) tests/libqos/pci-pc.o libqos-pc-obj-y += tests/libqos/malloc-pc.o tests/libqos/libqos-pc.o libqos-pc-obj-y += tests/libqos/ahci.o libqos-omap-obj-y = $(libqos-obj-y) tests/libqos/i2c-omap.o -libqos-virtio-obj-y = $(libqos-obj-y) $(libqos-pc-obj-y) tests/libqos/virtio.o tests/libqos/virtio-pci.o libqos-usb-obj-y = $(libqos-pc-obj-y) tests/libqos/usb.o +libqos-virtio-obj-y = $(libqos-pc-obj-y) tests/libqos/virtio.o tests/libqos/virtio-pci.o tests/libqos/virtio-mmio.o tests/libqos/malloc-generic.o tests/rtc-test$(EXESUF): tests/rtc-test.o tests/m48t59-test$(EXESUF): tests/m48t59-test.o diff --git a/tests/libqos/virtio-mmio.c b/tests/libqos/virtio-mmio.c new file mode 100644 index 0000000..b3e62e7 --- /dev/null +++ b/tests/libqos/virtio-mmio.c @@ -0,0 +1,198 @@ +/* + * libqos virtio MMIO driver + * + * Copyright (c) 2014 Marc Marí + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include <glib.h> +#include <stdio.h> +#include "libqtest.h" +#include "libqos/virtio.h" +#include "libqos/virtio-mmio.h" +#include "libqos/malloc.h" +#include "libqos/malloc-generic.h" + +static uint8_t qvirtio_mmio_config_readb(QVirtioDevice *d, uint64_t addr) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return readb(dev->addr + addr); +} + +static uint16_t qvirtio_mmio_config_readw(QVirtioDevice *d, uint64_t addr) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return readw(dev->addr + addr); +} + +static uint32_t qvirtio_mmio_config_readl(QVirtioDevice *d, uint64_t addr) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return readl(dev->addr + addr); +} + +static uint64_t qvirtio_mmio_config_readq(QVirtioDevice *d, uint64_t addr) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return readq(dev->addr + addr); +} + +static uint32_t qvirtio_mmio_get_features(QVirtioDevice *d) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + writel(dev->addr + QVIRTIO_MMIO_HOST_FEATURES_SEL, 0); + return readl(dev->addr + QVIRTIO_MMIO_HOST_FEATURES); +} + +static void qvirtio_mmio_set_features(QVirtioDevice *d, uint32_t features) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + dev->features = features; + writel(dev->addr + QVIRTIO_MMIO_GUEST_FEATURES_SEL, 0); + writel(dev->addr + QVIRTIO_MMIO_GUEST_FEATURES, features); +} + +static uint32_t qvirtio_mmio_get_guest_features(QVirtioDevice *d) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return dev->features; +} + +static uint8_t qvirtio_mmio_get_status(QVirtioDevice *d) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return (uint8_t)readl(dev->addr + QVIRTIO_MMIO_DEVICE_STATUS); +} + +static void qvirtio_mmio_set_status(QVirtioDevice *d, uint8_t status) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + writel(dev->addr + QVIRTIO_MMIO_DEVICE_STATUS, (uint32_t)status); +} + +static bool qvirtio_mmio_get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + uint32_t isr; + + isr = readl(dev->addr + QVIRTIO_MMIO_INTERRUPT_STATUS) & 1; + if (isr != 0) { + writel(dev->addr + QVIRTIO_MMIO_INTERRUPT_ACK, 1); + return true; + } + + return false; +} + +static bool qvirtio_mmio_get_config_isr_status(QVirtioDevice *d) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + uint32_t isr; + + isr = readl(dev->addr + QVIRTIO_MMIO_INTERRUPT_STATUS) & 2; + if (isr != 0) { + writel(dev->addr + QVIRTIO_MMIO_INTERRUPT_ACK, 2); + return true; + } + + return false; +} + +static void qvirtio_mmio_queue_select(QVirtioDevice *d, uint16_t index) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + writel(dev->addr + QVIRTIO_MMIO_QUEUE_SEL, (uint32_t)index); + + g_assert_cmphex(readl(dev->addr + QVIRTIO_MMIO_QUEUE_PFN), ==, 0); +} + +static uint16_t qvirtio_mmio_get_queue_size(QVirtioDevice *d) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + return (uint16_t)readl(dev->addr + QVIRTIO_MMIO_QUEUE_NUM_MAX); +} + +static void qvirtio_mmio_set_queue_address(QVirtioDevice *d, uint32_t pfn) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + writel(dev->addr + QVIRTIO_MMIO_QUEUE_PFN, pfn); +} + +static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d, + QGuestAllocator *alloc, uint16_t index) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + QVirtQueue *vq; + uint64_t addr; + + vq = g_malloc0(sizeof(*vq)); + qvirtio_mmio_queue_select(d, index); + writel(dev->addr + QVIRTIO_MMIO_QUEUE_ALIGN, dev->page_size); + + vq->index = index; + vq->size = qvirtio_mmio_get_queue_size(d); + vq->free_head = 0; + vq->num_free = vq->size; + vq->align = dev->page_size; + vq->indirect = (dev->features & QVIRTIO_F_RING_INDIRECT_DESC) != 0; + vq->event = (dev->features & QVIRTIO_F_RING_EVENT_IDX) != 0; + + writel(dev->addr + QVIRTIO_MMIO_QUEUE_NUM, vq->size); + + /* Check different than 0 */ + g_assert_cmpint(vq->size, !=, 0); + + /* Check power of 2 */ + g_assert_cmpint(vq->size & (vq->size - 1), ==, 0); + + addr = guest_alloc(alloc, qvring_size(vq->size, dev->page_size)); + qvring_init(alloc, vq, addr); + qvirtio_mmio_set_queue_address(d, vq->desc / dev->page_size); + + return vq; +} + +static void qvirtio_mmio_virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq) +{ + QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d; + writel(dev->addr + QVIRTIO_MMIO_QUEUE_NOTIFY, vq->index); +} + +const QVirtioBus qvirtio_mmio = { + .config_readb = qvirtio_mmio_config_readb, + .config_readw = qvirtio_mmio_config_readw, + .config_readl = qvirtio_mmio_config_readl, + .config_readq = qvirtio_mmio_config_readq, + .get_features = qvirtio_mmio_get_features, + .set_features = qvirtio_mmio_set_features, + .get_guest_features = qvirtio_mmio_get_guest_features, + .get_status = qvirtio_mmio_get_status, + .set_status = qvirtio_mmio_set_status, + .get_queue_isr_status = qvirtio_mmio_get_queue_isr_status, + .get_config_isr_status = qvirtio_mmio_get_config_isr_status, + .queue_select = qvirtio_mmio_queue_select, + .get_queue_size = qvirtio_mmio_get_queue_size, + .set_queue_address = qvirtio_mmio_set_queue_address, + .virtqueue_setup = qvirtio_mmio_virtqueue_setup, + .virtqueue_kick = qvirtio_mmio_virtqueue_kick, +}; + +QVirtioMMIODevice *qvirtio_mmio_init_device(uint64_t addr, uint32_t page_size) +{ + QVirtioMMIODevice *dev; + uint32_t magic; + dev = g_malloc0(sizeof(*dev)); + + magic = readl(addr + QVIRTIO_MMIO_MAGIC_VALUE); + g_assert(magic == ('v' | 'i' << 8 | 'r' << 16 | 't' << 24)); + + dev->addr = addr; + dev->page_size = page_size; + dev->vdev.device_type = readl(addr + QVIRTIO_MMIO_DEVICE_ID); + + writel(addr + QVIRTIO_MMIO_GUEST_PAGE_SIZE, page_size); + + return dev; +} diff --git a/tests/libqos/virtio-mmio.h b/tests/libqos/virtio-mmio.h new file mode 100644 index 0000000..e3e52b9 --- /dev/null +++ b/tests/libqos/virtio-mmio.h @@ -0,0 +1,46 @@ +/* + * libqos virtio MMIO definitions + * + * Copyright (c) 2014 Marc Marí + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef LIBQOS_VIRTIO_MMIO_H +#define LIBQOS_VIRTIO_MMIO_H + +#include "libqos/virtio.h" + +#define QVIRTIO_MMIO_MAGIC_VALUE 0x000 +#define QVIRTIO_MMIO_VERSION 0x004 +#define QVIRTIO_MMIO_DEVICE_ID 0x008 +#define QVIRTIO_MMIO_VENDOR_ID 0x00C +#define QVIRTIO_MMIO_HOST_FEATURES 0x010 +#define QVIRTIO_MMIO_HOST_FEATURES_SEL 0x014 +#define QVIRTIO_MMIO_GUEST_FEATURES 0x020 +#define QVIRTIO_MMIO_GUEST_FEATURES_SEL 0x024 +#define QVIRTIO_MMIO_GUEST_PAGE_SIZE 0x028 +#define QVIRTIO_MMIO_QUEUE_SEL 0x030 +#define QVIRTIO_MMIO_QUEUE_NUM_MAX 0x034 +#define QVIRTIO_MMIO_QUEUE_NUM 0x038 +#define QVIRTIO_MMIO_QUEUE_ALIGN 0x03C +#define QVIRTIO_MMIO_QUEUE_PFN 0x040 +#define QVIRTIO_MMIO_QUEUE_NOTIFY 0x050 +#define QVIRTIO_MMIO_INTERRUPT_STATUS 0x060 +#define QVIRTIO_MMIO_INTERRUPT_ACK 0x064 +#define QVIRTIO_MMIO_DEVICE_STATUS 0x070 +#define QVIRTIO_MMIO_DEVICE_SPECIFIC 0x100 + +typedef struct QVirtioMMIODevice { + QVirtioDevice vdev; + uint64_t addr; + uint32_t page_size; + uint32_t features; /* As it cannot be read later, save it */ +} QVirtioMMIODevice; + +extern const QVirtioBus qvirtio_mmio; + +QVirtioMMIODevice *qvirtio_mmio_init_device(uint64_t addr, uint32_t page_size); + +#endif diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c index e903032..3b943fc 100644 --- a/tests/virtio-blk-test.c +++ b/tests/virtio-blk-test.c @@ -16,9 +16,11 @@ #include "libqtest.h" #include "libqos/virtio.h" #include "libqos/virtio-pci.h" +#include "libqos/virtio-mmio.h" #include "libqos/pci-pc.h" #include "libqos/malloc.h" #include "libqos/malloc-pc.h" +#include "libqos/malloc-generic.h" #include "qemu/bswap.h" #define QVIRTIO_BLK_F_BARRIER 0x00000001 @@ -42,10 +44,14 @@ #define TEST_IMAGE_SIZE (64 * 1024 * 1024) #define QVIRTIO_BLK_TIMEOUT_US (30 * 1000 * 1000) +#define PCI_SLOT_HP 0x06 #define PCI_SLOT 0x04 #define PCI_FN 0x00 -#define PCI_SLOT_HP 0x06 +#define MMIO_PAGE_SIZE 4096 +#define MMIO_DEV_BASE_ADDR 0x0A003E00 +#define MMIO_RAM_ADDR 0x40000000 +#define MMIO_RAM_SIZE 0x20000000 typedef struct QVirtioBlkReq { uint32_t type; @@ -90,6 +96,23 @@ static QPCIBus *pci_test_start(void) return qpci_init_pc(); } +static void arm_test_start(void) +{ + char *cmdline; + char *tmp_path; + + tmp_path = drive_create(); + + cmdline = g_strdup_printf("-machine virt " + "-drive if=none,id=drive0,file=%s,format=raw " + "-device virtio-blk-device,drive=drive0", + tmp_path); + qtest_start(cmdline); + unlink(tmp_path); + g_free(tmp_path); + g_free(cmdline); +} + static void test_end(void) { qtest_end(); @@ -695,18 +718,64 @@ static void pci_hotplug(void) test_end(); } +static void mmio_basic(void) +{ + QVirtioMMIODevice *dev; + QVirtQueue *vq; + QGuestAllocator *alloc; + int n_size = TEST_IMAGE_SIZE / 2; + uint64_t capacity; + + arm_test_start(); + + dev = qvirtio_mmio_init_device(MMIO_DEV_BASE_ADDR, MMIO_PAGE_SIZE); + g_assert(dev != NULL); + g_assert_cmphex(dev->vdev.device_type, ==, QVIRTIO_BLK_DEVICE_ID); + + qvirtio_reset(&qvirtio_mmio, &dev->vdev); + qvirtio_set_acknowledge(&qvirtio_mmio, &dev->vdev); + qvirtio_set_driver(&qvirtio_mmio, &dev->vdev); + + alloc = generic_alloc_init(MMIO_RAM_ADDR, MMIO_RAM_SIZE, MMIO_PAGE_SIZE); + vq = qvirtqueue_setup(&qvirtio_mmio, &dev->vdev, alloc, 0); + + test_basic(&qvirtio_mmio, &dev->vdev, alloc, vq, + QVIRTIO_MMIO_DEVICE_SPECIFIC); + + qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', " + " 'size': %d } }", n_size); + + qvirtio_wait_queue_isr(&qvirtio_mmio, &dev->vdev, vq, + QVIRTIO_BLK_TIMEOUT_US); + + capacity = qvirtio_config_readq(&qvirtio_mmio, &dev->vdev, + QVIRTIO_MMIO_DEVICE_SPECIFIC); + g_assert_cmpint(capacity, ==, n_size / 512); + + /* End test */ + guest_free(alloc, vq->desc); + generic_alloc_uninit(alloc); + g_free(dev); + test_end(); +} + int main(int argc, char **argv) { int ret; + const char *arch = qtest_get_arch(); g_test_init(&argc, &argv, NULL); - g_test_add_func("/virtio/blk/pci/basic", pci_basic); - g_test_add_func("/virtio/blk/pci/indirect", pci_indirect); - g_test_add_func("/virtio/blk/pci/config", pci_config); - g_test_add_func("/virtio/blk/pci/msix", pci_msix); - g_test_add_func("/virtio/blk/pci/idx", pci_idx); - g_test_add_func("/virtio/blk/pci/hotplug", pci_hotplug); + if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { + qtest_add_func("/virtio/blk/pci/basic", pci_basic); + qtest_add_func("/virtio/blk/pci/indirect", pci_indirect); + qtest_add_func("/virtio/blk/pci/config", pci_config); + qtest_add_func("/virtio/blk/pci/msix", pci_msix); + qtest_add_func("/virtio/blk/pci/idx", pci_idx); + qtest_add_func("/virtio/blk/pci/hotplug", pci_hotplug); + } else if (strcmp(arch, "arm") == 0) { + qtest_add_func("/virtio/blk/mmio/basic", mmio_basic); + } ret = g_test_run(); |