> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 20 November 2015 15:03
> To: Paul Durrant
> Cc: Andrew Cooper; Ian Campbell; Ian Jackson; Stefano Stabellini; Wei Liu;
> xen-de...@lists.xenproject.org; Keir (Xen.org)
> Subject: RE: [PATCH v3] x86/hvm/viridian: flu
>>> On 20.11.15 at 14:41, wrote:
>> From: Jan Beulich [mailto:jbeul...@suse.com]
>> Sent: 20 November 2015 12:27
>> While you can't "and" that mask into input_params.vcpu_mask,
>> wouldn't using it allow you to avoid the scratch pCPU mask
>> variable?
>
> I'm not sure. After flushing the ASIDs I
> -Original Message-
> From: Paul Durrant
> Sent: 20 November 2015 13:41
> To: 'Jan Beulich'
> Cc: Andrew Cooper; Ian Campbell; Ian Jackson; Stefano Stabellini; Wei Liu;
> xen-de...@lists.xenproject.org; Keir (Xen.org)
> Subject: RE: [PATCH v3] x86/hvm/viridian: flush remote tlbs by hyperca
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 20 November 2015 12:27
> To: Paul Durrant
> Cc: Andrew Cooper; Ian Campbell; Ian Jackson; Stefano Stabellini; Wei Liu;
> xen-de...@lists.xenproject.org; Keir (Xen.org)
> Subject: RE: [PATCH v3] x86/hvm/viridian: flu
On 20/11/15 09:15, Paul Durrant wrote:
>> -Original Message-
>> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
>> Sent: 19 November 2015 17:09
>> To: Paul Durrant; xen-de...@lists.xenproject.org
>> Cc: Ian Jackson; Stefano Stabellini; Ian Campbell; Wei Liu; Keir (Xen.org);
>> Jan
>
>>> On 20.11.15 at 10:15, wrote:
>> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
>> Sent: 19 November 2015 17:09
>> On 19/11/15 16:57, Paul Durrant wrote:
>> >> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
>> >> Sent: 19 November 2015 16:07
>> >> On 19/11/15 13:19, Paul Durrant
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 20 November 2015 09:45
> To: Andrew Cooper; Paul Durrant
> Cc: Ian Campbell; Ian Jackson; Stefano Stabellini; Wei Liu; xen-
> de...@lists.xenproject.org; Keir (Xen.org)
> Subject: RE: [PATCH v3] x86/hvm/viridian: fl
>>> On 20.11.15 at 10:15, wrote:
>> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
>> Sent: 19 November 2015 17:09
>> On 19/11/15 16:57, Paul Durrant wrote:
>> >>> +/*
>> >>> + * For each specified virtual CPU flush all ASIDs to invalidate
>> >>> + * TLB entries the
> -Original Message-
> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
> Sent: 19 November 2015 17:09
> To: Paul Durrant; xen-de...@lists.xenproject.org
> Cc: Ian Jackson; Stefano Stabellini; Ian Campbell; Wei Liu; Keir (Xen.org);
> Jan
> Beulich
> Subject: Re: [PATCH v3] x86/hvm/vi
On 19/11/15 16:57, Paul Durrant wrote:
>> -Original Message-
>> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
>> Sent: 19 November 2015 16:07
>> To: Paul Durrant; xen-de...@lists.xenproject.org
>> Cc: Ian Jackson; Stefano Stabellini; Ian Campbell; Wei Liu; Keir (Xen.org);
>> Jan
>
> -Original Message-
> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
> Sent: 19 November 2015 16:07
> To: Paul Durrant; xen-de...@lists.xenproject.org
> Cc: Ian Jackson; Stefano Stabellini; Ian Campbell; Wei Liu; Keir (Xen.org);
> Jan
> Beulich
> Subject: Re: [PATCH v3] x86/hvm/vi
On 19/11/15 13:19, Paul Durrant wrote:
> @@ -561,10 +584,81 @@ int viridian_hypercall(struct cpu_user_regs *regs)
> switch ( input.call_code )
> {
> case HvNotifyLongSpinWait:
> +/*
> + * See Microsoft Hypervisor Top Level Spec. section 18.5.1.
> + */
>
>>> On 19.11.15 at 14:19, wrote:
> The Microsoft Hypervisor Top Level Functional Spec. (section 3.4) defines
> two bits in CPUID leaf 0x4004:EAX for the hypervisor to recommend
> whether or not to issue a hypercall for local or remote TLB flush.
>
> Whilst it's doubtful whether using a hyperc
The Microsoft Hypervisor Top Level Functional Spec. (section 3.4) defines
two bits in CPUID leaf 0x4004:EAX for the hypervisor to recommend
whether or not to issue a hypercall for local or remote TLB flush.
Whilst it's doubtful whether using a hypercall for local TLB flush would
be any more ef
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