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Re: [PATCH v4 4/6] xen/arm: mpu: Create boot-time MPU protection regions
- To: Julien Grall <julien@xxxxxxx>, Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Ayan Kumar Halder <ayankuma@xxxxxxx>
- Date: Fri, 1 Nov 2024 17:11:20 +0000
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Fri, 01 Nov 2024 17:11:36 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 01/11/2024 17:08, Ayan Kumar Halder wrote:
On 01/11/2024 14:11, Julien Grall wrote:
Hi Ayan,
Hi Julien,
Yes, you are correct. We need the following change.
--- a/xen/arch/arm/arch.mk
+++ b/xen/arch/arm/arch.mk
@@ -9,7 +9,11 @@ CFLAGS-$(CONFIG_ARM_32) += -msoft-float
CFLAGS-$(CONFIG_ARM_32) += -mcpu=cortex-a15
CFLAGS-$(CONFIG_ARM_32) += -mno-unaligned-access
+ifeq ($(CONFIG_MPU),y)
+CFLAGS-$(CONFIG_ARM_64) += -march=armv8-r
+else
CFLAGS-$(CONFIG_ARM_64) += -mcpu=generic
+endif
CFLAGS-$(CONFIG_ARM_64) += -mgeneral-regs-only # No fp registers etc
$(call cc-option-add,CFLAGS-$(CONFIG_ARM_64),CC,-mno-outline-atomics)
(Sorry for the misformatted snippet in the previous mail)
- Ayan
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