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

vga-access.h (1944B)

      1/*
      2 * QEMU VGA Emulator templates
      3 *
      4 * Copyright (c) 2003 Fabrice Bellard
      5 *
      6 * Permission is hereby granted, free of charge, to any person obtaining a copy
      7 * of this software and associated documentation files (the "Software"), to deal
      8 * in the Software without restriction, including without limitation the rights
      9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     10 * copies of the Software, and to permit persons to whom the Software is
     11 * furnished to do so, subject to the following conditions:
     12 *
     13 * The above copyright notice and this permission notice shall be included in
     14 * all copies or substantial portions of the Software.
     15 *
     16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     22 * THE SOFTWARE.
     23 */
     24
     25static inline uint8_t vga_read_byte(VGACommonState *vga, uint32_t addr)
     26{
     27    return vga->vram_ptr[addr & vga->vbe_size_mask];
     28}
     29
     30static inline uint16_t vga_read_word_le(VGACommonState *vga, uint32_t addr)
     31{
     32    uint32_t offset = addr & vga->vbe_size_mask & ~1;
     33    uint16_t *ptr = (uint16_t *)(vga->vram_ptr + offset);
     34    return lduw_le_p(ptr);
     35}
     36
     37static inline uint16_t vga_read_word_be(VGACommonState *vga, uint32_t addr)
     38{
     39    uint32_t offset = addr & vga->vbe_size_mask & ~1;
     40    uint16_t *ptr = (uint16_t *)(vga->vram_ptr + offset);
     41    return lduw_be_p(ptr);
     42}
     43
     44static inline uint32_t vga_read_dword_le(VGACommonState *vga, uint32_t addr)
     45{
     46    uint32_t offset = addr & vga->vbe_size_mask & ~3;
     47    uint32_t *ptr = (uint32_t *)(vga->vram_ptr + offset);
     48    return ldl_le_p(ptr);
     49}