Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-11-14 Thread Stefano Stabellini
On Tue, 14 Nov 2023, Juergen Gross wrote: > On 13.11.23 21:24, David Woodhouse wrote: > > On Fri, 2023-10-27 at 07:27 +0200, Juergen Gross wrote: > > > On 26.10.23 22:56, Stefano Stabellini wrote: > > > > On Thu, 26 Oct 2023, David Woodhouse wrote: > > > > > On Thu, 2023-10-26 at 13:36 -0700,

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-11-13 Thread Juergen Gross
On 13.11.23 21:24, David Woodhouse wrote: On Fri, 2023-10-27 at 07:27 +0200, Juergen Gross wrote: On 26.10.23 22:56, Stefano Stabellini wrote: On Thu, 26 Oct 2023, David Woodhouse wrote: On Thu, 2023-10-26 at 13:36 -0700, Stefano Stabellini wrote: This seems like a lot of code to replace

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-11-13 Thread David Woodhouse
On Fri, 2023-10-27 at 07:27 +0200, Juergen Gross wrote: > On 26.10.23 22:56, Stefano Stabellini wrote: > > On Thu, 26 Oct 2023, David Woodhouse wrote: > > > On Thu, 2023-10-26 at 13:36 -0700, Stefano Stabellini wrote: > > > > > > > > > This seems like a lot of code to replace that simpler

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread Juergen Gross
On 26.10.23 22:56, Stefano Stabellini wrote: On Thu, 26 Oct 2023, David Woodhouse wrote: On Thu, 2023-10-26 at 13:36 -0700, Stefano Stabellini wrote: This seems like a lot of code to replace that simpler option... is there a massive performance win from doing it this way? Would we want to

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread Stefano Stabellini
On Thu, 26 Oct 2023, David Woodhouse wrote: > On Thu, 2023-10-26 at 13:36 -0700, Stefano Stabellini wrote: > > > > > This seems like a lot of code to replace that simpler option... is > > > there a massive performance win from doing it this way? Would we want > > > to use this trick for the Xen

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread David Woodhouse
On Thu, 2023-10-26 at 13:36 -0700, Stefano Stabellini wrote: > > > This seems like a lot of code to replace that simpler option... is > > there a massive performance win from doing it this way? Would we want > > to use this trick for the Xen PV backends (qdisk, qnic) *too*? Might it > > make

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread Stefano Stabellini
On Thu, 26 Oct 2023, David Woodhouse wrote: > On Thu, 2023-10-26 at 11:07 -0700, Stefano Stabellini wrote: > > On Thu, 26 Oct 2023, David Woodhouse wrote: > > > On Wed, 2023-10-25 at 14:24 -0700, Vikram Garhwal wrote: > > > > Hi, > > > > This patch series add support for grant mappings as a pseudo

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread David Woodhouse
On Thu, 2023-10-26 at 11:07 -0700, Stefano Stabellini wrote: > On Thu, 26 Oct 2023, David Woodhouse wrote: > > On Wed, 2023-10-25 at 14:24 -0700, Vikram Garhwal wrote: > > > Hi, > > > This patch series add support for grant mappings as a pseudo RAM region > > > for Xen. > > > > > > Enabling

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread Stefano Stabellini
On Thu, 26 Oct 2023, David Woodhouse wrote: > On Wed, 2023-10-25 at 14:24 -0700, Vikram Garhwal wrote: > > Hi, > > This patch series add support for grant mappings as a pseudo RAM region for > > Xen. > > > > Enabling grant mappings patches(first 6) are written by Juergen in 2021. > > > > QEMU

Re: [QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-26 Thread David Woodhouse
On Wed, 2023-10-25 at 14:24 -0700, Vikram Garhwal wrote: > Hi, > This patch series add support for grant mappings as a pseudo RAM region for > Xen. > > Enabling grant mappings patches(first 6) are written by Juergen in 2021. > > QEMU Virtio device provides an emulated backends for Virtio

[QEMU][PATCHv2 0/8] Xen: support grant mappings.

2023-10-25 Thread Vikram Garhwal
Hi, This patch series add support for grant mappings as a pseudo RAM region for Xen. Enabling grant mappings patches(first 6) are written by Juergen in 2021. QEMU Virtio device provides an emulated backends for Virtio frontned devices in Xen. Please set "iommu_platform=on" option when invoking