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Re: [PATCH v8 00/16] acquire_resource size and external IPT monitoring

On 01.02.21 15:07, Andrew Cooper wrote:

Hi Andrew

On 01/02/2021 12:34, Oleksandr wrote:
On 30.01.21 04:58, Andrew Cooper wrote:

Hi Andrew

Combined series (as they are dependent).  First, the resource size
fixes, and
then the external IPT monitoring built on top.

Posting in full for reference, but several patches are ready to go
in.  Those
in need of review are patch 6, 8 and 12.

See individual patches for changes.  The major work was rebasing over
ARM/IOREQ series which moved a load of code which this series was
Looks like that some of these patches have been already merged. So I
preliminary tested current staging
(9dc687f155a57216b83b17f9cde55dd43e06b0cd x86/debug: fix page-overflow
bug in dbg_rw_guest_mem) on Arm *with* IOREQ enabled.

I didn't notice any regressions with IOREQ on Arm))

Tamas and I did do extended testing on the subset which got committed,
before it went in, and it is all fixing of corner cases, rather than
fundamentally changing how things worked.

One query I did leave on IRC, and hasn't had an answer.

What is the maximum number of vcpus in an ARM guest?

public/arch-arm.h says that current supported guest VCPUs max number is 128.

You moved an
x86-ism "max 128 vcpus" into common code.

Ooh, I am not sure I understand where exactly. Could you please clarify in which patch?



Oleksandr Tyshchenko



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