[PATCH 2/7] arm64: head: correct comment for init_kernel_el()

[Bradley Morgan]

The comment above init_kernel_el() still says the function configures
the CPU to execute at the highest reachable EL, but that stopped being
true a while back. Ever since commit ae4b7e38e9a94798 ("arm64: Allow
sticky E2H when entering EL1"), init_kernel_el() always drops to EL1,
and it is finalise_el2() that brings us back up to EL2 when we want it.

Update the comment to match what the code actually does.

Signed-off-by: Bradley Morgan <brads@xxxxxxxxxxxxxx>
Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: James Morse <james.morse@xxxxxxx>
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
---
 arch/arm64/kernel/head.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 87a822e5c4ca..c6301557eee1 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -254,9 +254,9 @@ SYM_FUNC_END(__primary_switched)
 	.section ".idmap.text","a"
 
 /*
- * Starting from EL2 or EL1, configure the CPU to execute at the highest
- * reachable EL supported by the kernel in a chosen default state. If dropping
- * from EL2 to EL1, configure EL2 before configuring EL1.
+ * Starting from EL2 or EL1, configure the CPU to execute at EL1.
+ * If dropping from EL2 to EL1, configure EL2 before configuring EL1.
+ * To use VHE we'll upgrade back to EL2 later in finalise_el2().
  *
  * Since we cannot always rely on ERET synchronizing writes to sysregs (e.g. if
  * SCTLR_ELx.EOS is clear), we place an ISB prior to ERET.
-- 
2.47.3