After acpi device in RMRR is detected,it is necessary
to establish a mapping for these devices.
In acpi_device_create_direct_mappings(),create a mapping
for the acpi device in RMRR.
Add a helper to achieve the acpi namespace device can
access the RMRR region.
Signed-off-by: FelixCuioc
---
Hi Felix,
On 9/2/20 11:24 AM, FelixCui-oc wrote:
hi baolu,
So you have a hidden device (invisible to host kernel). But you need to
setup some identity mappings for this device, so that the firmware
could keep working, right?
The platform designs this by putting that range in the RMRR
:* Re: [PATCH v3 2/2] iommu/vt-d:Add support for probing ACPI
device in RMRR
Hi Felix,
On 8/27/20 6:02 PM, FelixCuioc wrote:
After acpi device in RMRR is detected,it is necessary
to establish a mapping for these devices.
In acpi_device_create_direct_mappings(),create a mapping
for the acpi device
Hi Felix,
On 8/27/20 6:02 PM, FelixCuioc wrote:
After acpi device in RMRR is detected,it is necessary
to establish a mapping for these devices.
In acpi_device_create_direct_mappings(),create a mapping
for the acpi device in RMRR.
Add a helper to achieve the acpi namespace device can
access the
After acpi device in RMRR is detected,it is necessary
to establish a mapping for these devices.
In acpi_device_create_direct_mappings(),create a mapping
for the acpi device in RMRR.
Add a helper to achieve the acpi namespace device can
access the RMRR region.
Signed-off-by: FelixCuioc
---
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