[PATCH 4/8] arm64: Add EL2 switch to soft_restart
Catalin Marinas
catalin.marinas at arm.com
Tue Jan 27 09:57:40 PST 2015
On Sat, Jan 17, 2015 at 12:23:34AM +0000, Geoff Levand wrote:
> ENTRY(cpu_reset)
> - mrs x1, sctlr_el1
> - bic x1, x1, #1
> - msr sctlr_el1, x1 // disable the MMU
> + mrs x2, sctlr_el1
> + bic x2, x2, #1
> + msr sctlr_el1, x2 // disable the MMU
> isb
> - ret x0
> +
> + cbz x0, 1f // el2_switch?
> + mov x0, x1
> + mov x1, xzr
> + mov x2, xzr
> + mov x3, xzr
> + hvc #HVC_CALL_FUNC // no return
If that's the only user of HVC_CALL_FUNC, why do we bother with
arguments, calling convention?
--
Catalin
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