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vfio: make compatible with 32bit compilation

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This commit is contained in:
Steffen Vogel 2021-09-13 15:12:37 +02:00
parent 85573b82a3
commit a281e5583f
1 changed files with 4 additions and 4 deletions
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8
common/lib/kernel/vfio.cpp
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@ -514,21 +514,21 @@ Device::pciEnable()
{
int ret;
uint32_t reg;
const off_t offset = PCI_COMMAND +
(static_cast<off_t>(VFIO_PCI_CONFIG_REGION_INDEX) << 40);
const off64_t offset = PCI_COMMAND +
(static_cast<off64_t>(VFIO_PCI_CONFIG_REGION_INDEX) << 40);
/* Check if this is really a vfio-pci device */
if (!(this->info.flags & VFIO_DEVICE_FLAGS_PCI))
return false;
ret = pread(this->fd, &reg, sizeof(reg), offset);
ret = pread64(this->fd, &reg, sizeof(reg), offset);
if (ret != sizeof(reg))
return false;
/* Enable memory access and PCI bus mastering which is required for DMA */
reg |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
ret = pwrite(this->fd, &reg, sizeof(reg), offset);
ret = pwrite64(this->fd, &reg, sizeof(reg), offset);
if (ret != sizeof(reg))
return false;