On Thu, Jul 12, 2012 at 7:54 AM, Rusty Russell <rusty.russell@xxxxxxxxxx> wrote:
> Here, at least, it's just the CBAR being read.
>
> Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
> ---
> arch/arm/kvm/emulate.c | 10 ++--------
> 1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c
> index 7b0fde1..9637f88 100644
> --- a/arch/arm/kvm/emulate.c
> +++ b/arch/arm/kvm/emulate.c
> @@ -371,14 +371,8 @@ static const struct coproc_emulate coproc_emulate[] = {
> { CRn( 9), CRm(DF), Op1(DF), Op2(DF), is32, WRITE, ignore_write},
> { CRn( 9), CRm(DF), Op1(DF), Op2(DF), is32, READ, read_zero},
>
> - /*
> - * The CP15 c15 register is architecturally implementation
> - * defined, but some guest kernels attempt to read/write a
> - * diagnostics register here. We always return 0 and ignore
> - * writes and hope for the best.
> - */
> - { CRn(15), CRm(DF), Op1(DF), Op2(DF), is32, WRITE, ignore_write, 1},
> - { CRn(15), CRm(DF), Op1(DF), Op2(DF), is32, READ, read_zero, 1},
> + /* The Configuration Base Address Register (R/O). */
> + { CRn(15), CRm( 0), Op1( 4), Op2( 0), is32, READ, read_zero, 1},
> };
>
> #undef is64
thanks, applied.
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