diff mbox series

[v3,4/5] xen/arm32: Allow ARM_PA_BITS_40 only if !MPU

Message ID 20250330180308.2551195-5-ayan.kumar.halder@amd.com (mailing list archive)
State New
Headers show
Series Enable early bootup of Armv8-R AArch32 systems | expand

Commit Message

Ayan Kumar Halder March 30, 2025, 6:03 p.m. UTC 
From: Michal Orzel <michal.orzel@amd.com>

ArmV8-R AArch32 does not support LPAE. The reason being PMSAv8-32
supports 32-bit physical address only.

Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
---
Changes from 

v1 - 1. New patch.

v2 - 1. No changes

 xen/arch/arm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Julien Grall March 30, 2025, 9:07 p.m. UTC | #1 
Hi,

On 30/03/2025 19:03, Ayan Kumar Halder wrote:
> From: Michal Orzel <michal.orzel@amd.com>
> 
> ArmV8-R AArch32 does not support LPAE. The reason being PMSAv8-32
> supports 32-bit physical address only.
> 
> Signed-off-by: Michal Orzel <michal.orzel@amd.com>
> Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>

Acked-by: Julien Grall <jgrall@amazon.com>

Cheers,
diff mbox series

Patch

diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig
index a4af0b85f1..565f288331 100644
--- a/xen/arch/arm/Kconfig
+++ b/xen/arch/arm/Kconfig
@@ -58,7 +58,7 @@  config ARM_PA_BITS_32
 
 config ARM_PA_BITS_40
 	bool "40-bit"
-	depends on ARM_32
+	depends on ARM_32 && !MPU
 endchoice
 
 config PADDR_BITS