On 15 September 2015 at 17:15, Will Deacon <will.deacon@xxxxxxx> wrote:
> Although the ThumbEE registers and traps were present in earlier
> versions of the v8 architecture, it was retrospectively removed and so
> we can do the same.
>
> Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
> Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index b41607d270ac..6c35e49757d8 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -539,13 +539,6 @@ static const struct sys_reg_desc sys_reg_descs[] = {
> { Op0(0b10), Op1(0b000), CRn(0b0111), CRm(0b1110), Op2(0b110),
> trap_dbgauthstatus_el1 },
>
> - /* TEECR32_EL1 */
> - { Op0(0b10), Op1(0b010), CRn(0b0000), CRm(0b0000), Op2(0b000),
> - NULL, reset_val, TEECR32_EL1, 0 },
> - /* TEEHBR32_EL1 */
> - { Op0(0b10), Op1(0b010), CRn(0b0001), CRm(0b0000), Op2(0b000),
> - NULL, reset_val, TEEHBR32_EL1, 0 },
> -
I guess this is a VM migration compatibility break between kernels
without this patch and kernels with it? I think that's OK at this
point, but it would be nice to mention it in the commit message.
thanks
-- PMM
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