On an LPAE system, the physical addresses used by VirtIO-MMIO may be
higher than 32 bits. For example on a Versatile Express system with
4G RAM, the following error surfaces when trying to use a VirtIO-MMIO
block device.
EXT2-fs (vda): error: ext2_check_page: bad entry in directory #2: : unaligned directory entry - offset=0, inode=3755990991, rec_len=57311, name_len=223
To fix this, select ARCH_DMA_ADDR_T_64BIT when LPAE is selected
and mach-vexpress, mach-virt, or both are being built.
Signed-off-by: Christopher Covington <[email protected]>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-vexpress/Kconfig | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 245058b..8407c28 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -901,6 +901,7 @@ endmenu
config ARCH_VIRT
bool "Dummy Virtual Machine" if ARCH_MULTI_V7
+ select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
select ARM_AMBA
select ARM_GIC
select ARM_PSCI
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 99c1f15..5f33e16 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -1,5 +1,6 @@
menuconfig ARCH_VEXPRESS
bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7
+ select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
select ARCH_REQUIRE_GPIOLIB
select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
--
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