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Merge branch 'master' into v-smandalika-bl-dply-winserv

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Siddarth Mandalika
2020-10-28 17:32:04 +05:30
parent a0995aa90f f68a602286
commit 0d13ceb4f8
93 changed files with 627 additions and 423 deletions
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windows/security/information-protection/kernel-dma-protection-for-thunderbolt.md
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@ -95,7 +95,7 @@ Beginning with Windows 10 version 1809, you can use Security Center to check if
- Reboot system into Windows 10.
>[!NOTE]
> **Hyper-V - Virtualization Enabled in Firmware** is NOT shown when **A hypervisor has been detected. Features required for Hyper-V will not be displayed.** is shown because this means that **Hyper-V - Virtualization Enabled in Firmware** is YES and the **Hyper-V** Windows feature is enabled. Enabling both is needed to enable **Kernel DMA Protection** even when the firmware has the flag of "ACPI Kernel DMA Protection Indicators" described in [Kernel DMA Protection (Memory Access Protection) for OEMs](https://docs.microsoft.com/windows-hardware/design/device-experiences/oem-kernel-dma-protection).
> **Hyper-V - Virtualization Enabled in Firmware** is not available when **A hypervisor has been detected. Features required for Hyper-V will not be displayed.** is displayed. This means that **Hyper-V - Virtualization Enabled in Firmware** is set to Yes and the **Hyper-V** Windows feature is enabled. Enabling Hyper-V virtualization in Firmware (IOMMU) is required to enable **Kernel DMA Protection**, even when the firmware has the flag of "ACPI Kernel DMA Protection Indicators" described in [Kernel DMA Protection (Memory Access Protection) for OEMs](https://docs.microsoft.com/windows-hardware/design/device-experiences/oem-kernel-dma-protection).
4. If the state of **Kernel DMA Protection** remains Off, then the system does not support this feature.