[PATCH 1/7] x86/boot: clarify comment about trampoline_setup usage

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

Clarify that trampoline_setup is only used for EFI when booted using the
multiboot2 entry point.

Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/arch/x86/boot/head.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S
index 1b3bd16fe575..59a2b5005cf6 100644
--- a/xen/arch/x86/boot/head.S
+++ b/xen/arch/x86/boot/head.S
@@ -505,7 +505,8 @@ trampoline_bios_setup:
 
 trampoline_setup:
         /*
-         * Called on legacy BIOS and EFI platforms.
+         * Called on legacy BIOS and EFI platforms when using multiboot (either
+         * 1 or 2).
          */
 
         /* Save Xen image load base address for later use. */
-- 
2.48.1