[PATCH v4 3/3] x86: Align output sections for UEFI CA memory mitigation requirements

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

All loadable sections should be page aligned.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
---
 xen/arch/x86/xen.lds.S | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S
index b0b952dd9c..ef446e0a71 100644
--- a/xen/arch/x86/xen.lds.S
+++ b/xen/arch/x86/xen.lds.S
@@ -208,6 +208,10 @@ SECTIONS
 
   } PHDR(text)
 
+#ifdef EFI
+  /* align to satisfy UEFI CA memory mitigation */
+  . = ALIGN(PAGE_SIZE);
+#endif
   DECL_SECTION(.init.data) {
        *(.init.bss.stack_aligned)
 
@@ -262,6 +266,10 @@ SECTIONS
        __ctors_end = .;
   } PHDR(text)
 
+#ifdef EFI
+  /* align to satisfy UEFI CA memory mitigation */
+  . = ALIGN(PAGE_SIZE);
+#endif
   DECL_SECTION(.init.trampoline) {
        *(.init.trampoline)
   } PHDR(text)
-- 
2.34.1