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Librem13v2: Enable IOMMU and Pass-through mode

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By enabling Pass-through iommu, it fixes the GPU glitching issues
we've had with IOMMU, and it also allows us to boot a target kernel
without having to give it intel_iommu=igfx_off as argument.
This commit is contained in:
Youness Alaoui 2018-04-03 18:04:03 -04:00
parent f60f0543d6
commit 1fc114ba42
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GPG Key ID: AAFC4B34BBEBB31C
2 changed files with 3 additions and 3 deletions
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4
boards/librem13v2/librem13v2.config
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@ -26,8 +26,8 @@ export CONFIG_TPM=y
export CONFIG_BOOTSCRIPT=/bin/gui-init
export CONFIG_BOOT_REQ_HASH=n
export CONFIG_BOOT_REQ_ROLLBACK=n
export CONFIG_BOOT_KERNEL_ADD="intel_iommu=on intel_iommu=igfx_off"
export CONFIG_BOOT_KERNEL_REMOVE="quiet"
export CONFIG_BOOT_KERNEL_ADD="iommu=pt"
export CONFIG_BOOT_KERNEL_REMOVE=""
export CONFIG_BOOT_DEV="/dev/sda1"
export CONFIG_BOOT_GUI_MENU_NAME="Purism Librem 13v2 Heads Boot Menu"
export CONFIG_USB_BOOT_DEV="/dev/sdb1"

2
config/coreboot-librem13v2.config
View File

@ -690,7 +690,7 @@ CONFIG_PAYLOAD_LINUX=y
CONFIG_PAYLOAD_FILE="../../build/librem13v2/bzImage"
CONFIG_PAYLOAD_OPTIONS=""
# CONFIG_PXE is not set
CONFIG_LINUX_COMMAND_LINE="intel_iommu=igfx_off"
CONFIG_LINUX_COMMAND_LINE="intel_iommu=on iommu=pt"
CONFIG_LINUX_INITRD="../../build/librem13v2/initrd.cpio.xz"
# CONFIG_PAYLOAD_IS_FLAT_BINARY is not set