linux-kernel - Re: [PATCH -fixes] riscv: Flush the tlb when a page directory is freed

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Date: Wed, 7 Feb 2024 13:27:27 -0600
From: Samuel Holland <samuel.holland@...ive.com>
To: Alexandre Ghiti <alexghiti@...osinc.com>
Cc: Will Deacon <will@...nel.org>,
 "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
 Andrew Morton <akpm@...ux-foundation.org>, Nick Piggin <npiggin@...il.com>,
 Peter Zijlstra <peterz@...radead.org>,
 Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
 <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
 Andrew Jones <ajones@...tanamicro.com>, linux-arch@...r.kernel.org,
 linux-mm@...ck.org, linux-riscv@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH -fixes] riscv: Flush the tlb when a page directory is
 freed

On 2024-01-28 6:04 AM, Alexandre Ghiti wrote:
> The riscv privileged specification mandates to flush the TLB whenever a
> page directory is modified, so add that to tlb_flush().
> 
> Fixes: c5e9b2c2ae82 ("riscv: Improve tlb_flush()")
> Signed-off-by: Alexandre Ghiti <alexghiti@...osinc.com>
> ---
>  arch/riscv/include/asm/tlb.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Samuel Holland <samuel.holland@...ive.com>
Tested-by: Samuel Holland <samuel.holland@...ive.com>