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Re: [Qemu-devel] [PATCH v2 6/8] cputlb: Remove double-alignment in store


From: Philippe Mathieu-Daudé
Subject: Re: [Qemu-devel] [PATCH v2 6/8] cputlb: Remove double-alignment in store_helper
Date: Thu, 29 Aug 2019 19:00:33 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0

On 8/29/19 1:16 AM, Richard Henderson wrote:
> We have already aligned page2 to the start of the next page.
> There is no reason to do that a second time.
> 
> Signed-off-by: Richard Henderson <address@hidden>

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

> ---
>  accel/tcg/cputlb.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
> index 7fb67d2f05..d0f8db33a2 100644
> --- a/accel/tcg/cputlb.c
> +++ b/accel/tcg/cputlb.c
> @@ -1518,8 +1518,7 @@ store_helper(CPUArchState *env, target_ulong addr, 
> uint64_t val,
>          entry2 = tlb_entry(env, mmu_idx, page2);
>          tlb_addr2 = tlb_addr_write(entry2);
>          if (!tlb_hit_page(tlb_addr2, page2)
> -            && !victim_tlb_hit(env, mmu_idx, index2, tlb_off,
> -                               page2 & TARGET_PAGE_MASK)) {
> +            && !victim_tlb_hit(env, mmu_idx, index2, tlb_off, page2)) {
>              tlb_fill(env_cpu(env), page2, size2, MMU_DATA_STORE,
>                       mmu_idx, retaddr);
>          }
> 



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