Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Durrant, Paul
> -Original Message- > From: Wei Liu > Sent: 17 February 2020 12:48 > To: Durrant, Paul > Cc: Roger Pau Monné ; Wei Liu ; Xen > Development List ; Michael Kelley > ; Wei Liu ; Jan Beulich > ; Andrew Cooper > Subject: Re: [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush > >

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Wei Liu
On Mon, Feb 17, 2020 at 12:21:09PM +, Durrant, Paul wrote: > > -Original Message- > > From: Roger Pau Monné > > Sent: 17 February 2020 12:08 > > To: Durrant, Paul > > Cc: Wei Liu ; Xen Development List > de...@lists.xenproject.org>; Michael Kelley ; Wei > > Liu ; Jan Beulich ;

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Wei Liu
On Mon, Feb 17, 2020 at 01:13:28PM +0100, Roger Pau Monné wrote: > On Mon, Feb 17, 2020 at 12:08:01PM +, Wei Liu wrote: > > On Mon, Feb 17, 2020 at 01:00:54PM +0100, Roger Pau Monné wrote: > > > On Mon, Feb 17, 2020 at 11:45:38AM +, Wei Liu wrote: > > > > On Mon, Feb 17, 2020 at 12:40:31PM

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Durrant, Paul
> -Original Message- > From: Roger Pau Monné > Sent: 17 February 2020 12:08 > To: Durrant, Paul > Cc: Wei Liu ; Xen Development List de...@lists.xenproject.org>; Michael Kelley ; Wei > Liu ; Jan Beulich ; Andrew Cooper > > Subject: Re: [PATCH v2 2/3] x86/hyperv: skeleton for L0

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Durrant, Paul
> -Original Message- > From: Roger Pau Monné > Sent: 17 February 2020 11:41 > To: Wei Liu > Cc: Durrant, Paul ; Xen Development List de...@lists.xenproject.org>; Michael Kelley ; Wei > Liu ; Jan Beulich ; Andrew Cooper > > Subject: Re: [PATCH v2 2/3] x86/hyperv: skeleton for L0

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Roger Pau Monné
On Mon, Feb 17, 2020 at 12:08:01PM +, Wei Liu wrote: > On Mon, Feb 17, 2020 at 01:00:54PM +0100, Roger Pau Monné wrote: > > On Mon, Feb 17, 2020 at 11:45:38AM +, Wei Liu wrote: > > > On Mon, Feb 17, 2020 at 12:40:31PM +0100, Roger Pau Monné wrote: > > > > On Mon, Feb 17, 2020 at 11:34:41AM

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Roger Pau Monné
On Mon, Feb 17, 2020 at 12:01:23PM +, Durrant, Paul wrote: > > -Original Message- > > From: Roger Pau Monné > > Sent: 17 February 2020 11:41 > > To: Wei Liu > > Cc: Durrant, Paul ; Xen Development List > de...@lists.xenproject.org>; Michael Kelley ; Wei > > Liu ; Jan Beulich ;

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Wei Liu
On Mon, Feb 17, 2020 at 01:00:54PM +0100, Roger Pau Monné wrote: > On Mon, Feb 17, 2020 at 11:45:38AM +, Wei Liu wrote: > > On Mon, Feb 17, 2020 at 12:40:31PM +0100, Roger Pau Monné wrote: > > > On Mon, Feb 17, 2020 at 11:34:41AM +, Wei Liu wrote: > > > > On Fri, Feb 14, 2020 at 04:55:44PM

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Roger Pau Monné
On Mon, Feb 17, 2020 at 11:45:38AM +, Wei Liu wrote: > On Mon, Feb 17, 2020 at 12:40:31PM +0100, Roger Pau Monné wrote: > > On Mon, Feb 17, 2020 at 11:34:41AM +, Wei Liu wrote: > > > On Fri, Feb 14, 2020 at 04:55:44PM +, Durrant, Paul wrote: > > > > > -Original Message- > > > >

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Wei Liu
On Mon, Feb 17, 2020 at 12:40:31PM +0100, Roger Pau Monné wrote: > On Mon, Feb 17, 2020 at 11:34:41AM +, Wei Liu wrote: > > On Fri, Feb 14, 2020 at 04:55:44PM +, Durrant, Paul wrote: > > > > -Original Message- > > > > From: Wei Liu On Behalf Of Wei Liu > > > > Sent: 14 February

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Roger Pau Monné
On Mon, Feb 17, 2020 at 11:34:41AM +, Wei Liu wrote: > On Fri, Feb 14, 2020 at 04:55:44PM +, Durrant, Paul wrote: > > > -Original Message- > > > From: Wei Liu On Behalf Of Wei Liu > > > Sent: 14 February 2020 13:34 > > > To: Xen Development List > > > Cc: Michael Kelley ;

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-17 Thread Wei Liu
On Fri, Feb 14, 2020 at 04:55:44PM +, Durrant, Paul wrote: > > -Original Message- > > From: Wei Liu On Behalf Of Wei Liu > > Sent: 14 February 2020 13:34 > > To: Xen Development List > > Cc: Michael Kelley ; Durrant, Paul > > ; Wei Liu ; Wei Liu > > ; Jan Beulich ; Andrew Cooper > >

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-14 Thread Durrant, Paul
> -Original Message- > From: Wei Liu On Behalf Of Wei Liu > Sent: 14 February 2020 13:34 > To: Xen Development List > Cc: Michael Kelley ; Durrant, Paul > ; Wei Liu ; Wei Liu > ; Jan Beulich ; Andrew Cooper > ; Roger Pau Monné > Subject: [PATCH v2 2/3] x86/hyperv: skeleton for L0

Re: [Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-14 Thread Roger Pau Monné
On Fri, Feb 14, 2020 at 12:34:29PM +, Wei Liu wrote: > Implement a basic hook for L0 assisted TLB flush. The hook needs to > check if prerequisites are met. If they are not met, it returns an error > number to fall back to native flushes. > > Introduce a new variable to indicate if hypercall

[Xen-devel] [PATCH v2 2/3] x86/hyperv: skeleton for L0 assisted TLB flush

2020-02-14 Thread Wei Liu
Implement a basic hook for L0 assisted TLB flush. The hook needs to check if prerequisites are met. If they are not met, it returns an error number to fall back to native flushes. Introduce a new variable to indicate if hypercall page is ready. Signed-off-by: Wei Liu ---