aboutsummaryrefslogtreecommitdiff
path: root/hw/vfio/pci-quirks.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/vfio/pci-quirks.c')
-rw-r--r--hw/vfio/pci-quirks.c155
1 files changed, 0 insertions, 155 deletions
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 961aa566a2..c70c004e24 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -247,161 +247,6 @@ static bool vfio_range_contained(uint64_t first1, uint64_t len1,
return (first1 >= first2 && first1 + len1 <= first2 + len2);
}
-static bool vfio_flags_enabled(uint8_t flags, uint8_t mask)
-{
- return (mask && (flags & mask) == mask);
-}
-
-static uint64_t vfio_generic_window_quirk_read(void *opaque,
- hwaddr addr, unsigned size)
-{
- VFIOLegacyQuirk *quirk = opaque;
- VFIOPCIDevice *vdev = quirk->vdev;
- uint64_t data;
-
- if (vfio_flags_enabled(quirk->data.flags, quirk->data.read_flags) &&
- ranges_overlap(addr, size,
- quirk->data.data_offset, quirk->data.data_size)) {
- hwaddr offset = addr - quirk->data.data_offset;
-
- if (!vfio_range_contained(addr, size, quirk->data.data_offset,
- quirk->data.data_size)) {
- hw_error("%s: window data read not fully contained: %s",
- __func__, memory_region_name(quirk->mem));
- }
-
- data = vfio_pci_read_config(&vdev->pdev,
- quirk->data.address_val + offset, size);
-
- trace_vfio_generic_window_quirk_read(memory_region_name(quirk->mem),
- vdev->vbasedev.name,
- quirk->data.bar,
- addr, size, data);
- } else {
- data = vfio_region_read(&vdev->bars[quirk->data.bar].region,
- addr + quirk->data.base_offset, size);
- }
-
- return data;
-}
-
-static void vfio_generic_window_quirk_write(void *opaque, hwaddr addr,
- uint64_t data, unsigned size)
-{
- VFIOLegacyQuirk *quirk = opaque;
- VFIOPCIDevice *vdev = quirk->vdev;
-
- if (ranges_overlap(addr, size,
- quirk->data.address_offset, quirk->data.address_size)) {
-
- if (addr != quirk->data.address_offset) {
- hw_error("%s: offset write into address window: %s",
- __func__, memory_region_name(quirk->mem));
- }
-
- if ((data & ~quirk->data.address_mask) == quirk->data.address_match) {
- quirk->data.flags |= quirk->data.write_flags |
- quirk->data.read_flags;
- quirk->data.address_val = data & quirk->data.address_mask;
- } else {
- quirk->data.flags &= ~(quirk->data.write_flags |
- quirk->data.read_flags);
- }
- }
-
- if (vfio_flags_enabled(quirk->data.flags, quirk->data.write_flags) &&
- ranges_overlap(addr, size,
- quirk->data.data_offset, quirk->data.data_size)) {
- hwaddr offset = addr - quirk->data.data_offset;
-
- if (!vfio_range_contained(addr, size, quirk->data.data_offset,
- quirk->data.data_size)) {
- hw_error("%s: window data write not fully contained: %s",
- __func__, memory_region_name(quirk->mem));
- }
-
- vfio_pci_write_config(&vdev->pdev,
- quirk->data.address_val + offset, data, size);
- trace_vfio_generic_window_quirk_write(memory_region_name(quirk->mem),
- vdev->vbasedev.name,
- quirk->data.bar,
- addr, data, size);
- return;
- }
-
- vfio_region_write(&vdev->bars[quirk->data.bar].region,
- addr + quirk->data.base_offset, data, size);
-}
-
-static const MemoryRegionOps vfio_generic_window_quirk = {
- .read = vfio_generic_window_quirk_read,
- .write = vfio_generic_window_quirk_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-static uint64_t vfio_generic_quirk_read(void *opaque,
- hwaddr addr, unsigned size)
-{
- VFIOLegacyQuirk *quirk = opaque;
- VFIOPCIDevice *vdev = quirk->vdev;
- hwaddr base = quirk->data.address_match & TARGET_PAGE_MASK;
- hwaddr offset = quirk->data.address_match & ~TARGET_PAGE_MASK;
- uint64_t data;
-
- if (vfio_flags_enabled(quirk->data.flags, quirk->data.read_flags) &&
- ranges_overlap(addr, size, offset, quirk->data.address_mask + 1)) {
- if (!vfio_range_contained(addr, size, offset,
- quirk->data.address_mask + 1)) {
- hw_error("%s: read not fully contained: %s",
- __func__, memory_region_name(quirk->mem));
- }
-
- data = vfio_pci_read_config(&vdev->pdev, addr - offset, size);
-
- trace_vfio_generic_quirk_read(memory_region_name(quirk->mem),
- vdev->vbasedev.name, quirk->data.bar,
- addr + base, size, data);
- } else {
- data = vfio_region_read(&vdev->bars[quirk->data.bar].region,
- addr + base, size);
- }
-
- return data;
-}
-
-static void vfio_generic_quirk_write(void *opaque, hwaddr addr,
- uint64_t data, unsigned size)
-{
- VFIOLegacyQuirk *quirk = opaque;
- VFIOPCIDevice *vdev = quirk->vdev;
- hwaddr base = quirk->data.address_match & TARGET_PAGE_MASK;
- hwaddr offset = quirk->data.address_match & ~TARGET_PAGE_MASK;
-
- if (vfio_flags_enabled(quirk->data.flags, quirk->data.write_flags) &&
- ranges_overlap(addr, size, offset, quirk->data.address_mask + 1)) {
- if (!vfio_range_contained(addr, size, offset,
- quirk->data.address_mask + 1)) {
- hw_error("%s: write not fully contained: %s",
- __func__, memory_region_name(quirk->mem));
- }
-
- vfio_pci_write_config(&vdev->pdev, addr - offset, data, size);
-
- trace_vfio_generic_quirk_write(memory_region_name(quirk->mem),
- vdev->vbasedev.name, quirk->data.bar,
- addr + base, data, size);
- } else {
- vfio_region_write(&vdev->bars[quirk->data.bar].region,
- addr + base, data, size);
- }
-}
-
-static const MemoryRegionOps vfio_generic_quirk = {
- .read = vfio_generic_quirk_read,
- .write = vfio_generic_quirk_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
#define PCI_VENDOR_ID_ATI 0x1002
/*
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-24 05:32:32 +0000