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Re: [Xen-devel] [PATCH v2 10/11] x86/paravirt: move the Xen-only pv_mmu_ops under the PARAVIRT_XXL umbrella


  • To: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
  • From: Juergen Gross <jgross@xxxxxxxx>
  • Date: Fri, 24 Aug 2018 16:15:08 +0200
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  • Cc: rusty@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, mingo@xxxxxxxxxx, tglx@xxxxxxxxxxxxx, hpa@xxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, akataria@xxxxxxxxxx, boris.ostrovsky@xxxxxxxxxx
  • Delivery-date: Fri, 24 Aug 2018 14:15:13 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Openpgp: preference=signencrypt

On 24/08/18 16:12, Peter Zijlstra wrote:
> 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.

Right. This will stay outside of XXL, I think. :-)


Juergen

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