• Dave Martin's avatar
    arm64: Fix EL1/EL2 early init inconsistencies with VHE · 882416c1
    Dave Martin authored
    When using the Virtualisation Host Extensions, EL1 is not used in
    the host and requires no separate configuration.
    
    In addition, with VHE enabled, non-hyp-specific EL2 configuration
    that does not need to be done early will be done anyway in
    __cpu_setup via the _EL1 system register aliases.  In particular,
    the layout and definition of CPTR_EL2 are changed by enabling VHE
    so that they resemble CPACR_EL1, so existing code to initialise
    CPTR_EL2 becomes architecturally wrong in this case.
    
    This patch simply skips the affected initialisation code in the
    non-VHE case.
    Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
    Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
    Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
    882416c1
head.S 22.2 KB