On 02/19/19 20:51, Andrew Fish wrote:
>
>
>> On Feb 18, 2019, at 5:23 AM, Laszlo Ersek wrote:
>>
>> generic comment (applies to all NASM usage I guess):
>>
>> On 02/18/19 11:10, Jordan Justen wrote:
>>
>>> +mov eax, cr0
>>> +and eax, ~(1 << 30)
>>> +mov cr0, eax
>>
>>> +
On 02/19/19 20:59, Jordan Justen wrote:
> On 2019-02-18 05:23:28, Laszlo Ersek wrote:
>> generic comment (applies to all NASM usage I guess):
>>
>> On 02/18/19 11:10, Jordan Justen wrote:
>>
>>> +mov eax, cr0
>>> +and eax, ~(1 << 30)
>>> +mov cr0, eax
>>
>>> +mov rax
On 02/20/19 03:43, Fang, Peter wrote:
> When CR0.CD is set, KVM *might* emulate it by setting MTRR_TYPE_UNCACHABLE in
> its EPTE if non-coherent DMA is detected, because VT-d does not provide
> snooping in this case.
I think this was precisely the use case that I had to tweak with Linux
commit 8
On 2019-02-18 05:23:28, Laszlo Ersek wrote:
> generic comment (applies to all NASM usage I guess):
>
> On 02/18/19 11:10, Jordan Justen wrote:
>
> > +mov eax, cr0
> > +and eax, ~(1 << 30)
> > +mov cr0, eax
>
> > +mov rax, cr0
> > +and eax, ~(1 << 30)
> > +
> On Feb 18, 2019, at 5:23 AM, Laszlo Ersek wrote:
>
> generic comment (applies to all NASM usage I guess):
>
> On 02/18/19 11:10, Jordan Justen wrote:
>
>> +mov eax, cr0
>> +and eax, ~(1 << 30)
>> +mov cr0, eax
>
>> +mov rax, cr0
>> +and eax, ~(1 <<
On 2019-02-18 04:17:26, Laszlo Ersek wrote:
> On 02/18/19 11:10, Jordan Justen wrote:
> > Clear the CD (Cache Disable) flag in the CR0 register. When the VM
> > implements the CD flag, this can substantially decrease the time it
> > takes to decompress the firmware volumes.
> >
> > Contributed-und
generic comment (applies to all NASM usage I guess):
On 02/18/19 11:10, Jordan Justen wrote:
> +mov eax, cr0
> +and eax, ~(1 << 30)
> +mov cr0, eax
> +mov rax, cr0
> +and eax, ~(1 << 30)
> +mov cr0, rax
I've read up on the << and ~ operators in th
On 02/18/19 11:10, Jordan Justen wrote:
> Clear the CD (Cache Disable) flag in the CR0 register. When the VM
> implements the CD flag, this can substantially decrease the time it
> takes to decompress the firmware volumes.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by
Clear the CD (Cache Disable) flag in the CR0 register. When the VM
implements the CD flag, this can substantially decrease the time it
takes to decompress the firmware volumes.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jordan Justen
Tested-by: Peter Fang
Cc: Peter Fa
9 matches
Mail list logo