diff mbox series

[kvm-unit-tests,17/33] arm64: enable SVE at startup

Message ID 20240412103408.2706058-18-suzuki.poulose@arm.com (mailing list archive)
State New, archived
Headers show
Series Support for Arm Confidential Compute Architecture | expand

Commit Message

Suzuki K Poulose April 12, 2024, 10:33 a.m. UTC 
From: Joey Gouly <joey.gouly@arm.com>

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 arm/cstart64.S | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arm/cstart64.S b/arm/cstart64.S
index 92631349..c081365f 100644
--- a/arm/cstart64.S
+++ b/arm/cstart64.S
@@ -94,8 +94,9 @@  start:
 	adrp    x4, stackptr
 	add     sp, x4, :lo12:stackptr
 
-	/* enable FP/ASIMD */
-	mov	x4, #(3 << 20)
+	/* enable FP/ASIMD and SVE */
+	mov	x4, (3 << 20)
+	orr	x4, x4, (3 << 16)
 	msr	cpacr_el1, x4
 
 	/* set up exception handling */
@@ -278,8 +279,9 @@  get_mmu_off:
 
 .globl secondary_entry
 secondary_entry:
-	/* Enable FP/ASIMD */
+	/* enable FP/ASIMD and SVE */
 	mov	x0, #(3 << 20)
+	orr	x0, x0, #(3 << 16)
 	msr	cpacr_el1, x0
 
 	/* set up exception handling */