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Re: [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table

To: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>, Laszlo Ersek <lersek@xxxxxxxxxx>
From: Jan Beulich <jbeulich@xxxxxxxx>
Date: Mon, 11 Jan 2021 16:31:21 +0100
Cc: andrew.cooper3@xxxxxxxxxx, roger.pau@xxxxxxxxxx, wl@xxxxxxx, iwj@xxxxxxxxxxxxxx, anthony.perard@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
Delivery-date: Mon, 11 Jan 2021 15:31:27 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 11.01.2021 16:26, Igor Druzhinin wrote:
> Another problem that I faced while experimenting is that creating page
> tables for 46-bits (that CPUID returned in my case) of address space takes
> about a minute on a modern CPU.

Which probably isn't fundamentally different from bare metal?

Jan

References:
- [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table
  - From: Igor Druzhinin
- Re: [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table
  - From: Jan Beulich
- Re: [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table
  - From: Igor Druzhinin
- Re: [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table
  - From: Laszlo Ersek
- Re: [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table
  - From: Jan Beulich
- Re: [PATCH] hvmloader: pass PCI MMIO layout to OVMF as an info table
  - From: Igor Druzhinin

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