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

sifive_pdma.h (1664B)

      1/*
      2 * SiFive Platform DMA emulation
      3 *
      4 * Copyright (c) 2020 Wind River Systems, Inc.
      5 *
      6 * Author:
      7 *   Bin Meng <bin.meng@windriver.com>
      8 *
      9 * This program is free software; you can redistribute it and/or
     10 * modify it under the terms of the GNU General Public License as
     11 * published by the Free Software Foundation; either version 2 or
     12 * (at your option) version 3 of the License.
     13 *
     14 * This program is distributed in the hope that it will be useful,
     15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 * GNU General Public License for more details.
     18 *
     19 * You should have received a copy of the GNU General Public License along
     20 * with this program; if not, see <http://www.gnu.org/licenses/>.
     21 */
     22
     23#ifndef SIFIVE_PDMA_H
     24#define SIFIVE_PDMA_H
     25
     26struct sifive_pdma_chan {
     27    uint32_t control;
     28    uint32_t next_config;
     29    uint64_t next_bytes;
     30    uint64_t next_dst;
     31    uint64_t next_src;
     32    uint32_t exec_config;
     33    uint64_t exec_bytes;
     34    uint64_t exec_dst;
     35    uint64_t exec_src;
     36    int state;
     37};
     38
     39#define SIFIVE_PDMA_CHANS           4
     40#define SIFIVE_PDMA_IRQS            (SIFIVE_PDMA_CHANS * 2)
     41#define SIFIVE_PDMA_REG_SIZE        0x100000
     42#define SIFIVE_PDMA_CHAN_NO(reg)    ((reg & (SIFIVE_PDMA_REG_SIZE - 1)) >> 12)
     43
     44typedef struct SiFivePDMAState {
     45    SysBusDevice parent;
     46    MemoryRegion iomem;
     47    qemu_irq irq[SIFIVE_PDMA_IRQS];
     48
     49    struct sifive_pdma_chan chan[SIFIVE_PDMA_CHANS];
     50} SiFivePDMAState;
     51
     52#define TYPE_SIFIVE_PDMA    "sifive.pdma"
     53
     54#define SIFIVE_PDMA(obj)    \
     55    OBJECT_CHECK(SiFivePDMAState, (obj), TYPE_SIFIVE_PDMA)
     56
     57#endif /* SIFIVE_PDMA_H */