From: Paolo Bonzini
> Sent: 15 April 2019 09:12
> On 11/04/19 11:06, David Laight wrote:
> > It may be possible to generate shorter code that executes just as
> > fast by generating a single constant and deriving the others from it.
> > - generate 4s - needed first
> > - shift right 2 to get 1s (in
On 11/04/19 11:06, David Laight wrote:
> It may be possible to generate shorter code that executes just as
> fast by generating a single constant and deriving the others from it.
> - generate 4s - needed first
> - shift right 2 to get 1s (in parallel with the xor)
> - use lea to get 6s (in parallel
From: Paolo Bonzini
> Sent: 10 April 2019 18:09
> On 10/04/19 16:57, Sean Christopherson wrote:
> > On Wed, Apr 10, 2019 at 12:55:53PM +, David Laight wrote:
> >> From: Paolo Bonzini
> >>> Sent: 10 April 2019 10:55
> >>>
> >>> This check will soon be done on every nested vmentry and vmexit,
> >
On 04/10/2019 02:55 AM, Paolo Bonzini wrote:
This check will soon be done on every nested vmentry and vmexit,
"parallelize" it using bitwise operations.
Signed-off-by: Paolo Bonzini
---
arch/x86/kvm/mtrr.c| 10 +-
arch/x86/kvm/vmx/vmx.c | 2 +-
arch/x86/kvm/x86.h | 8 ++
On 10/04/19 16:57, Sean Christopherson wrote:
> On Wed, Apr 10, 2019 at 12:55:53PM +, David Laight wrote:
>> From: Paolo Bonzini
>>> Sent: 10 April 2019 10:55
>>>
>>> This check will soon be done on every nested vmentry and vmexit,
>>> "parallelize" it using bitwise operations.
>>>
>>> Signed-o
On Wed, Apr 10, 2019 at 11:55:26AM +0200, Paolo Bonzini wrote:
> This check will soon be done on every nested vmentry and vmexit,
> "parallelize" it using bitwise operations.
>
> Signed-off-by: Paolo Bonzini
> ---
Reviewed-by: Sean Christopherson
On Wed, Apr 10, 2019 at 12:55:53PM +, David Laight wrote:
> From: Paolo Bonzini
> > Sent: 10 April 2019 10:55
> >
> > This check will soon be done on every nested vmentry and vmexit,
> > "parallelize" it using bitwise operations.
> >
> > Signed-off-by: Paolo Bonzini
> > ---
> ...
> > diff --
From: Paolo Bonzini
> Sent: 10 April 2019 10:55
>
> This check will soon be done on every nested vmentry and vmexit,
> "parallelize" it using bitwise operations.
>
> Signed-off-by: Paolo Bonzini
> ---
...
> diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
> index 28406aa1136d..7bc7ac9d2a44 1
This check will soon be done on every nested vmentry and vmexit,
"parallelize" it using bitwise operations.
Signed-off-by: Paolo Bonzini
---
arch/x86/kvm/mtrr.c| 10 +-
arch/x86/kvm/vmx/vmx.c | 2 +-
arch/x86/kvm/x86.h | 8
3 files changed, 10 insertions(+), 10 deletio
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