cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

virtio-gpu-bswap.h (1875B)

      1/*
      2 * Virtio GPU Device
      3 *
      4 * Copyright Red Hat, Inc. 2013-2014
      5 *
      6 * Authors:
      7 *     Dave Airlie <airlied@redhat.com>
      8 *     Gerd Hoffmann <kraxel@redhat.com>
      9 *
     10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
     11 * See the COPYING file in the top-level directory.
     12 */
     13
     14#ifndef HW_VIRTIO_GPU_BSWAP_H
     15#define HW_VIRTIO_GPU_BSWAP_H
     16
     17#include "qemu/bswap.h"
     18#include "standard-headers/linux/virtio_gpu.h"
     19
     20static inline void
     21virtio_gpu_ctrl_hdr_bswap(struct virtio_gpu_ctrl_hdr *hdr)
     22{
     23    le32_to_cpus(&hdr->type);
     24    le32_to_cpus(&hdr->flags);
     25    le64_to_cpus(&hdr->fence_id);
     26    le32_to_cpus(&hdr->ctx_id);
     27    le32_to_cpus(&hdr->padding);
     28}
     29
     30static inline void
     31virtio_gpu_bswap_32(void *ptr, size_t size)
     32{
     33#ifdef HOST_WORDS_BIGENDIAN
     34
     35    size_t i;
     36    struct virtio_gpu_ctrl_hdr *hdr = (struct virtio_gpu_ctrl_hdr *) ptr;
     37
     38    virtio_gpu_ctrl_hdr_bswap(hdr);
     39
     40    i = sizeof(struct virtio_gpu_ctrl_hdr);
     41    while (i < size) {
     42        le32_to_cpus((uint32_t *)(ptr + i));
     43        i = i + sizeof(uint32_t);
     44    }
     45
     46#endif
     47}
     48
     49static inline void
     50virtio_gpu_t2d_bswap(struct virtio_gpu_transfer_to_host_2d *t2d)
     51{
     52    virtio_gpu_ctrl_hdr_bswap(&t2d->hdr);
     53    le32_to_cpus(&t2d->r.x);
     54    le32_to_cpus(&t2d->r.y);
     55    le32_to_cpus(&t2d->r.width);
     56    le32_to_cpus(&t2d->r.height);
     57    le64_to_cpus(&t2d->offset);
     58    le32_to_cpus(&t2d->resource_id);
     59    le32_to_cpus(&t2d->padding);
     60}
     61
     62static inline void
     63virtio_gpu_create_blob_bswap(struct virtio_gpu_resource_create_blob *cblob)
     64{
     65    virtio_gpu_ctrl_hdr_bswap(&cblob->hdr);
     66    le32_to_cpus(&cblob->resource_id);
     67    le32_to_cpus(&cblob->blob_flags);
     68    le64_to_cpus(&cblob->size);
     69}
     70
     71static inline void
     72virtio_gpu_scanout_blob_bswap(struct virtio_gpu_set_scanout_blob *ssb)
     73{
     74    virtio_gpu_bswap_32(ssb, sizeof(*ssb) - sizeof(ssb->offsets[3]));
     75    le32_to_cpus(&ssb->offsets[3]);
     76}
     77
     78#endif