On 24/04/2020 06:28, Jürgen Groß wrote:
> On 23.04.20 19:35, Andrew Cooper wrote:
>> On 21/04/2020 07:02, Jan Beulich wrote:
>>> On 20.04.2020 20:05, Andrew Cooper wrote:
On 20/04/2020 15:05, Jan Beulich wrote:
> I'm in particular
> concerned that we may gain a large number of such pri
On 23.04.2020 19:35, Andrew Cooper wrote:
> On 21/04/2020 07:02, Jan Beulich wrote:
>> On 20.04.2020 20:05, Andrew Cooper wrote:
>>> On 20/04/2020 15:05, Jan Beulich wrote:
I'm in particular
concerned that we may gain a large number of such printk()s over
time, if we added them in su
On 23.04.20 19:35, Andrew Cooper wrote:
On 21/04/2020 07:02, Jan Beulich wrote:
On 20.04.2020 20:05, Andrew Cooper wrote:
On 20/04/2020 15:05, Jan Beulich wrote:
I'm in particular
concerned that we may gain a large number of such printk()s over
time, if we added them in such cases.
The printk
On 21/04/2020 07:02, Jan Beulich wrote:
> On 20.04.2020 20:05, Andrew Cooper wrote:
>> On 20/04/2020 15:05, Jan Beulich wrote:
>>> I'm in particular
>>> concerned that we may gain a large number of such printk()s over
>>> time, if we added them in such cases.
>> The printk() was a bit of an afterth
On 20.04.2020 20:05, Andrew Cooper wrote:
> On 20/04/2020 15:05, Jan Beulich wrote:
>> On 17.04.2020 17:50, Andrew Cooper wrote:
>>> This is the start of some performance and security-hardening improvements,
>>> based on the fact that 32bit PV guests are few and far between these days.
>>>
>>> Ring
On 20/04/2020 15:05, Jan Beulich wrote:
> On 17.04.2020 17:50, Andrew Cooper wrote:
>> This is the start of some performance and security-hardening improvements,
>> based on the fact that 32bit PV guests are few and far between these days.
>>
>> Ring1 is full or architectural corner cases, such as
On 20/04/2020 14:47, Roger Pau Monné wrote:
> On Fri, Apr 17, 2020 at 04:50:02PM +0100, Andrew Cooper wrote:
>> This is the start of some performance and security-hardening improvements,
>> based on the fact that 32bit PV guests are few and far between these days.
>>
>> Ring1 is full or architectur
On 17.04.2020 17:50, Andrew Cooper wrote:
> --- a/xen/arch/x86/Kconfig
> +++ b/xen/arch/x86/Kconfig
> @@ -49,6 +49,22 @@ config PV
>
> If unsure, say Y.
>
> +config PV32
> + bool "Support for 32bit PV guests"
> + depends on PV
> + default y
I guess I can see why you don't w
On 17.04.2020 17:50, Andrew Cooper wrote:
> This is the start of some performance and security-hardening improvements,
> based on the fact that 32bit PV guests are few and far between these days.
>
> Ring1 is full or architectural corner cases, such as counting as supervisor
... full of ...
> --
On Fri, Apr 17, 2020 at 04:50:02PM +0100, Andrew Cooper wrote:
> This is the start of some performance and security-hardening improvements,
> based on the fact that 32bit PV guests are few and far between these days.
>
> Ring1 is full or architectural corner cases, such as counting as supervisor
This is the start of some performance and security-hardening improvements,
based on the fact that 32bit PV guests are few and far between these days.
Ring1 is full or architectural corner cases, such as counting as supervisor
from a paging point of view. This accounts for a substantial performanc
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