On Fri, Apr 09, 2021 at 09:42:41AM +0200, Vitaly Kuznetsov wrote:
> Siddharth Chandrasekaran writes:
> > On Thu, Apr 08, 2021 at 04:30:18PM +, Wei Liu wrote:
> >> On Thu, Apr 08, 2021 at 05:54:43PM +0200, Siddharth Chandrasekaran wrote:
> >> > On Thu, Apr 08, 2021 at 05:48:19PM +0200, Paolo
Siddharth Chandrasekaran writes:
> On Thu, Apr 08, 2021 at 04:30:18PM +, Wei Liu wrote:
>> On Thu, Apr 08, 2021 at 05:54:43PM +0200, Siddharth Chandrasekaran wrote:
>> > On Thu, Apr 08, 2021 at 05:48:19PM +0200, Paolo Bonzini wrote:
>> > > On 08/04/21 17:40, Siddharth Chandrasekaran wrote:
On Thu, Apr 08, 2021 at 04:30:18PM +, Wei Liu wrote:
> On Thu, Apr 08, 2021 at 05:54:43PM +0200, Siddharth Chandrasekaran wrote:
> > On Thu, Apr 08, 2021 at 05:48:19PM +0200, Paolo Bonzini wrote:
> > > On 08/04/21 17:40, Siddharth Chandrasekaran wrote:
> > > > > > > Although the Hyper-v TLFS
On Thu, Apr 08, 2021 at 05:54:43PM +0200, Siddharth Chandrasekaran wrote:
> On Thu, Apr 08, 2021 at 05:48:19PM +0200, Paolo Bonzini wrote:
> > On 08/04/21 17:40, Siddharth Chandrasekaran wrote:
> > > > > > Although the Hyper-v TLFS mentions that a guest cannot use this
> > > > > > feature
> > > >
On Thu, Apr 08, 2021 at 03:38:13PM +, Wei Liu wrote:
> On Thu, Apr 08, 2021 at 05:30:26PM +0200, Paolo Bonzini wrote:
> > On 08/04/21 17:28, Wei Liu wrote:
> > > > Although the Hyper-v TLFS mentions that a guest cannot use this feature
> > > > unless the hypervisor advertises support for it,
On Thu, Apr 08, 2021 at 05:48:19PM +0200, Paolo Bonzini wrote:
> On 08/04/21 17:40, Siddharth Chandrasekaran wrote:
> > > > > Although the Hyper-v TLFS mentions that a guest cannot use this
> > > > > feature
> > > > > unless the hypervisor advertises support for it, some hypercalls which
> > > >
On 08/04/21 17:40, Siddharth Chandrasekaran wrote:
Although the Hyper-v TLFS mentions that a guest cannot use this feature
unless the hypervisor advertises support for it, some hypercalls which
we plan on upstreaming in future uses them anyway.
No, please don't do this. Check the feature bit(s)
On Thu, Apr 08, 2021 at 05:30:26PM +0200, Paolo Bonzini wrote:
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>
>
> On 08/04/21 17:28, Wei Liu wrote:
> > > Although
On Thu, Apr 08, 2021 at 05:30:26PM +0200, Paolo Bonzini wrote:
> On 08/04/21 17:28, Wei Liu wrote:
> > > Although the Hyper-v TLFS mentions that a guest cannot use this feature
> > > unless the hypervisor advertises support for it, some hypercalls which
> > > we plan on upstreaming in future uses
On 08/04/21 17:28, Wei Liu wrote:
Although the Hyper-v TLFS mentions that a guest cannot use this feature
unless the hypervisor advertises support for it, some hypercalls which
we plan on upstreaming in future uses them anyway.
No, please don't do this. Check the feature bit(s) before you
On Wed, Apr 07, 2021 at 11:29:26PM +0200, Siddharth Chandrasekaran wrote:
> Hyper-V supports the use of XMM registers to perform fast hypercalls.
> This allows guests to take advantage of the improved performance of the
> fast hypercall interface even though a hypercall may require more than
>
Hyper-V supports the use of XMM registers to perform fast hypercalls.
This allows guests to take advantage of the improved performance of the
fast hypercall interface even though a hypercall may require more than
(the current maximum of) two general purpose registers.
The XMM fast hypercall
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