linux-kernel - Re: [PATCH v2 10/11] x86/paravirt: move the Xen-only pv_mmu_ops under the PARAVIRT

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Message-ID: <20180824141218.GP24124@hirez.programming.kicks-ass.net>
Date:   Fri, 24 Aug 2018 16:12:18 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Juergen Gross <jgross@...e.com>
Cc:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        x86@...nel.org, virtualization@...ts.linux-foundation.org,
        akataria@...are.com, rusty@...tcorp.com.au,
        boris.ostrovsky@...cle.com, hpa@...or.com, tglx@...utronix.de,
        mingo@...hat.com
Subject: Re: [PATCH v2 10/11] x86/paravirt: move the Xen-only pv_mmu_ops
 under the PARAVIRT_XXL umbrella

On Mon, Aug 13, 2018 at 09:37:38AM +0200, Juergen Gross wrote:
>  struct pv_mmu_ops {
> +	/* TLB operations */
> +	void (*flush_tlb_user)(void);
> +	void (*flush_tlb_kernel)(void);
> +	void (*flush_tlb_one_user)(unsigned long addr);
> +	void (*flush_tlb_others)(const struct cpumask *cpus,
> +				 const struct flush_tlb_info *info);
> +
> +	/* Hook for intercepting the destruction of an mm_struct. */
> +	void (*exit_mmap)(struct mm_struct *mm);

Right, so I just wrecked that for you by adding a new:
tlb_remove_table virt function. But I don't suppose that's a difficult
thing to fix up.