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Re: [Qemu-devel] [PATCH 14/17] ppc: Add dummy write to VTB
From: |
David Gibson |
Subject: |
Re: [Qemu-devel] [PATCH 14/17] ppc: Add dummy write to VTB |
Date: |
Wed, 16 Mar 2016 12:12:38 +1100 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Mon, Mar 14, 2016 at 05:56:37PM +0100, Cédric Le Goater wrote:
> From: Benjamin Herrenschmidt <address@hidden>
>
> The Hypervisor can write it. We don't handle that properly yet but
> at least let's not blow up when it is written.
>
> Signed-off-by: Benjamin Herrenschmidt <address@hidden>
AFAICT this should be for 2.7, not 2.6?
> ---
> target-ppc/translate_init.c | 15 +++++++++++----
> 1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
> index 2fac6ea58698..28a9c2e73156 100644
> --- a/target-ppc/translate_init.c
> +++ b/target-ppc/translate_init.c
> @@ -300,6 +300,12 @@ static void spr_write_purr(DisasContext *ctx, int gprn,
> int sprn)
> /* Temporary placeholder */
> }
>
> +__attribute__ ((unused))
> +static void spr_write_vtb(DisasContext *ctx, int gprn, int sprn)
> +{
> + /* Temporary placeholder */
> +}
> +
> #endif
> #endif
>
> @@ -8089,10 +8095,11 @@ static void gen_spr_power8_ebb(CPUPPCState *env)
> /* Virtual Time Base */
> static void gen_spr_vtb(CPUPPCState *env)
> {
> - spr_register(env, SPR_VTB, "VTB",
> - SPR_NOACCESS, SPR_NOACCESS,
> - &spr_read_tbl, SPR_NOACCESS,
> - 0x00000000);
> + spr_register_hv(env, SPR_VTB, "VTB",
> + SPR_NOACCESS, SPR_NOACCESS,
> + &spr_read_tbl, SPR_NOACCESS,
> + &spr_read_tbl, spr_write_vtb,
> + 0x00000000);
> }
>
> static void gen_spr_power8_fscr(CPUPPCState *env)
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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