diff options
Diffstat (limited to 'hw/i386/kvm')
| -rw-r--r-- | hw/i386/kvm/pci-assign.c | 56 |
1 files changed, 10 insertions, 46 deletions
diff --git a/hw/i386/kvm/pci-assign.c b/hw/i386/kvm/pci-assign.c index aae43097aa..968680104b 100644 --- a/hw/i386/kvm/pci-assign.c +++ b/hw/i386/kvm/pci-assign.c @@ -154,55 +154,19 @@ static uint64_t assigned_dev_ioport_rw(AssignedDevRegion *dev_region, uint64_t val = 0; int fd = dev_region->region->resource_fd; - if (fd >= 0) { - if (data) { - DEBUG("pwrite data=%" PRIx64 ", size=%d, e_phys=" TARGET_FMT_plx - ", addr="TARGET_FMT_plx"\n", *data, size, addr, addr); - if (pwrite(fd, data, size, addr) != size) { - error_report("%s - pwrite failed %s", - __func__, strerror(errno)); - } - } else { - if (pread(fd, &val, size, addr) != size) { - error_report("%s - pread failed %s", - __func__, strerror(errno)); - val = (1UL << (size * 8)) - 1; - } - DEBUG("pread val=%" PRIx64 ", size=%d, e_phys=" TARGET_FMT_plx - ", addr=" TARGET_FMT_plx "\n", val, size, addr, addr); + if (data) { + DEBUG("pwrite data=%" PRIx64 ", size=%d, e_phys=" TARGET_FMT_plx + ", addr="TARGET_FMT_plx"\n", *data, size, addr, addr); + if (pwrite(fd, data, size, addr) != size) { + error_report("%s - pwrite failed %s", __func__, strerror(errno)); } } else { - uint32_t port = addr + dev_region->u.r_baseport; - - if (data) { - DEBUG("out data=%" PRIx64 ", size=%d, e_phys=" TARGET_FMT_plx - ", host=%x\n", *data, size, addr, port); - switch (size) { - case 1: - outb(*data, port); - break; - case 2: - outw(*data, port); - break; - case 4: - outl(*data, port); - break; - } - } else { - switch (size) { - case 1: - val = inb(port); - break; - case 2: - val = inw(port); - break; - case 4: - val = inl(port); - break; - } - DEBUG("in data=%" PRIx64 ", size=%d, e_phys=" TARGET_FMT_plx - ", host=%x\n", val, size, addr, port); + if (pread(fd, &val, size, addr) != size) { + error_report("%s - pread failed %s", __func__, strerror(errno)); + val = (1UL << (size * 8)) - 1; } + DEBUG("pread val=%" PRIx64 ", size=%d, e_phys=" TARGET_FMT_plx + ", addr=" TARGET_FMT_plx "\n", val, size, addr, addr); } return val; } |