diff options
Diffstat (limited to 'qemu/tests/libqos/virtio-mmio.c')
-rw-r--r-- | qemu/tests/libqos/virtio-mmio.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/qemu/tests/libqos/virtio-mmio.c b/qemu/tests/libqos/virtio-mmio.c deleted file mode 100644 index a4382f366..000000000 --- a/qemu/tests/libqos/virtio-mmio.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * libqos virtio MMIO driver - * - * Copyright (c) 2014 Marc MarĂ - * - * 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 "qemu/osdep.h" -#include <glib.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; -} |