[PATCH] KVM: arm64: Remove PAGE_SIZE alignment for hyp event ELF sections

Vincent Donnefort vdonnefort at google.com
Thu Sep 24 02:51:54 PDT 2026


.hyp.event_ids is mapped as part of .hyp.rodata. As a consequence this
section does not need any page-alignment. Remove it to save a page worth
of memory.

Fixes: 0a90fbc8a170 ("KVM: arm64: Add event support to the nVHE/pKVM hyp and trace remote")
Signed-off-by: Vincent Donnefort <vdonnefort at google.com>
---
 arch/arm64/kernel/vmlinux.lds.S   | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp.lds.S | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index af1d72020976..c0b090db8be4 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -15,7 +15,7 @@
 
 #ifdef CONFIG_NVHE_EL2_TRACING
 #define HYPERVISOR_EVENT_IDS 					\
-	. = ALIGN(PAGE_SIZE);					\
+	. = ALIGN(SZ_8);					\
 	__hyp_event_ids_start = .;				\
 	*(HYP_SECTION_NAME(.event_ids))				\
 	__hyp_event_ids_end = .;
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
index 7a02837203d1..89222425359a 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
@@ -17,7 +17,6 @@ SECTIONS {
 	HYP_SECTION(.data..ro_after_init)
 	HYP_SECTION(.rodata)
 #ifdef CONFIG_NVHE_EL2_TRACING
-	. = ALIGN(PAGE_SIZE);
 	BEGIN_HYP_SECTION(.event_ids)
 		*(SORT(.hyp.event_ids.*))
 	END_HYP_SECTION

base-commit: 93f51579e7df248780214094418f205253383cc5
-- 
2.56.0.rc1.310.g51773c2048-goog




More information about the linux-arm-kernel mailing list