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intel_extreme: Fix instances of user memory creation and access.

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You still cannot boot to desktop under SMAP on intel_extreme, however,
as the agp_gart bus has not been patched properly. Doing so breaks the
intel_extreme accelerant, so more investigation is needed.
This commit is contained in:
Augustin Cavalier
2018-06-24 23:52:09 -04:00
parent 14ec6c8b23
commit abb59d7351
2 changed files with 14 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/add-ons/kernel/drivers/graphics/intel_extreme/device.cpp
+10 -5
View File
@@ -186,18 +186,23 @@ device_ioctl(void* data, uint32 op, void* buffer, size_t bufferLength)
switch (op) {
case B_GET_ACCELERANT_SIGNATURE:
strcpy((char*)buffer, INTEL_ACCELERANT_NAME);
TRACE("accelerant: %s\n", INTEL_ACCELERANT_NAME);
if (user_strlcpy((char*)buffer, INTEL_ACCELERANT_NAME,
B_FILE_NAME_LENGTH) < B_OK)
return B_BAD_ADDRESS;
return B_OK;
// needed to share data between kernel and accelerant
case INTEL_GET_PRIVATE_DATA:
{
intel_get_private_data* data = (intel_get_private_data* )buffer;
intel_get_private_data data;
if (user_memcpy(&data, buffer, sizeof(intel_get_private_data)) < B_OK)
return B_BAD_ADDRESS;
if (data->magic == INTEL_PRIVATE_DATA_MAGIC) {
data->shared_info_area = info->shared_area;
return B_OK;
if (data.magic == INTEL_PRIVATE_DATA_MAGIC) {
data.shared_info_area = info->shared_area;
return user_memcpy(buffer, &data,
sizeof(intel_get_private_data));
}
break;
}
src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
+4 -4
View File
@@ -212,8 +212,8 @@ init_interrupt_handler(intel_info &info)
// Find the right interrupt vector, using MSIs if available.
info.irq = 0xff;
info.use_msi = false;
if (info.pci->u.h0.interrupt_pin != 0x00)
info.use_msi = false;
if (info.pci->u.h0.interrupt_pin != 0x00)
info.irq = info.pci->u.h0.interrupt_line;
if (gPCIx86Module != NULL && gPCIx86Module->get_msi_count(info.pci->bus,
info.pci->device, info.pci->function) >= 1) {
@@ -316,7 +316,7 @@ intel_extreme_init(intel_info &info)
info.shared_area = sharedCreator.Create("intel extreme shared info",
(void**)&info.shared_info, B_ANY_KERNEL_ADDRESS,
ROUND_TO_PAGE_SIZE(sizeof(intel_shared_info)) + 3 * B_PAGE_SIZE,
B_FULL_LOCK, 0);
B_FULL_LOCK, B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA | B_USER_CLONEABLE_AREA);
if (info.shared_area < B_OK) {
ERROR("error: could not create shared area!\n");
gGART->unmap_aperture(info.aperture);
@@ -484,7 +484,7 @@ intel_extreme_init(intel_info &info)
status_t status = intel_allocate_memory(info, B_PAGE_SIZE, 0,
intel_uses_physical_overlay(*info.shared_info)
? B_APERTURE_NEED_PHYSICAL : 0,
(addr_t*)&info.overlay_registers,
(addr_t*)&info.overlay_registers,
&info.shared_info->physical_overlay_registers);
if (status == B_OK) {
info.shared_info->overlay_offset = (addr_t)info.overlay_registers