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Re: [Qemu-devel] [PATCH 03/10] target/arm: Implement HCR.FB


From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 03/10] target/arm: Implement HCR.FB
Date: Sun, 14 Oct 2018 09:21:40 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0

On 10/12/18 7:42 AM, Peter Maydell wrote:
> The HCR.FB virtualization configuration register bit requests that
> TLB maintenance, branch predictor invalidate-all and icache
> invalidate-all operations performed in NS EL1 should be upgraded
> from "local CPU only to "broadcast within Inner Shareable domain".
> For QEMU we NOP the branch predictor and icache operations, so
> we only need to upgrade the TLB invalidates:
>  AArch32 TLBIALL, TLBIMVA, TLBIASID, DTLBIALL, DTLBIMVA, DTLBIASID,
>          ITLBIALL, ITLBIMVA, ITLBIASID, TLBIMVAA, TLBIMVAL, TLBIMVAAL
>  AArch64 TLBI VMALLE1, TLBI VAE1, TLBI ASIDE1, TLBI VAAE1,
>          TLBI VALE1, TLBI VAALE1
> 
> Signed-off-by: Peter Maydell <address@hidden>
> ---
>  target/arm/helper.c | 191 +++++++++++++++++++++++++++-----------------
>  1 file changed, 116 insertions(+), 75 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>

r~




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