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This patch series is based on Eugenio's fix for handling CVQs in a different ASID [0]. The first patch is the actual fix. The next 2 patches are fixing a possible issue that I found while implementing patch 1. The patches are ordered like this for clarity. [0] https://lore.kernel.org/lkml/20230112142218.725622-1-eperezma at redhat.com/ Dragos Tatulea (1): vdpa/mlx5: Fix mr...

This patch series is based on Eugenio's fix for handling CVQs in a different ASID [0]. The first patch is the actual fix. The next 2 patches are fixing a possible issue that I found while implementing patch 1. The patches are ordered like this for clarity. [0] https://lore.kernel.org/lkml/20230112142218.725622-1-eperezma at redhat.com/ Dragos Tatulea (1): vdpa/mlx5: Fix mr...

Future AMD SVM supports a new feature called flush by ASID. The idea is to allow CPU to flush TLBs associated with the ASID assigned to guest VM. So hypervisor doesn''t have to reassign a new ASID in order to flush guest''s VCPU. Please review it. Thanks, Wei Signed-off-by: Wei Huang <wei.huang2@amd.com> Signed-off-by: Wei Wang &...

...virtio device reset. Leverage the .reset_map callback to reset memory mapping, then the device .reset routine can run free from having to clean up memory mappings. Signed-off-by: Si-Wei Liu <si-wei.liu at oracle.com> --- RFC v1 -> v2: - fix error path when both CVQ and DVQ fall in same asid --- drivers/vdpa/mlx5/core/mlx5_vdpa.h | 1 + drivers/vdpa/mlx5/core/mr.c | 70 +++++++++++++++++++++++--------------- drivers/vdpa/mlx5/net/mlx5_vnet.c | 18 +++++++--- 3 files changed, 56 insertions(+), 33 deletions(-) diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5...

In order to reduce needlessly high setup and teardown cost of iotlb mapping during live migration, it's crucial to decouple the vhost-vdpa iotlb abstraction from the virtio device life cycle, i.e. iotlb mappings should be left intact across virtio device reset [1]. For it to work, the on-chip IOMMU parent device should implement a separate .reset_map() operation callback to restore 1:1 DMA

In order to reduce needlessly high setup and teardown cost of iotlb mapping during live migration, it's crucial to decouple the vhost-vdpa iotlb abstraction from the virtio device life cycle, i.e. iotlb mappings should be left intact across virtio device reset [1]. For it to work, the on-chip IOMMU parent device should implement a separate .reset_map() operation callback to restore 1:1 DMA

...art and stop device correctly (e.g for Live Migration). This requies to isolate the memory mapping for control virtqueue presented by vhost-vDPA to prevent guest from accesing it directly. To achieve this, vDPA introduce two new abstractions: - address space: identified through address space id (ASID) and a set of memory mapping in maintained - virtqueue group: the minimal set of virtqueues that must share an address space Device needs to advertise the following attributes to vDPA: - the number of address spaces supported in the device - the number of virtque...

...art and stop device correctly (e.g for Live Migration). This requies to isolate the memory mapping for control virtqueue presented by vhost-vDPA to prevent guest from accesing it directly. To achieve this, vDPA introduce two new abstractions: - address space: identified through address space id (ASID) and a set of memory mapping in maintained - virtqueue group: the minimal set of virtqueues that must share an address space Device needs to advertise the following attributes to vDPA: - the number of address spaces supported in the device - the number of virtque...

This patch implements flush by asid feature for AMD CPUs. Thanks, Wei Signed-off-by: Wei Huang <wei.huang2@amd.com> Signed-off-by: Wei Wang <wei.wang2@amd.com> -- Advanced Micro Devices GmbH Sitz: Dornach, Gemeinde Aschheim, Landkreis München Registergericht München, HRB Nr. 43632 WEEE-Reg-Nr: DE 12919551 Geschäftsführ...

Attached patch for svm will enable a tlb flush for each vmrun. Applies cleanly to 8781:dcc2beb8a1d2 Signed-off-by: Tom Woller <thomas.woller@amd.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...e changed, 17 insertions(+) diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index eabac06..71fbd559 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -131,6 +131,15 @@ static struct vhost_vdpa_as *vhost_vdpa_find_alloc_as(struct vhost_vdpa *v, return vhost_vdpa_alloc_as(v, asid); } +static void vhost_vdpa_reset_map(struct vhost_vdpa *v, u32 asid) +{ + struct vdpa_device *vdpa = v->vdpa; + const struct vdpa_config_ops *ops = vdpa->config; + + if (ops->reset_map) + ops->reset_map(vdpa, asid); +} + static int vhost_vdpa_remove_as(struct vhost_vdpa *v, u32 as...

...PIC mode: Flat. Using 2 I/O APICs (XEN) mapped APIC to ffff828bfffff000 (fee00000) (XEN) mapped IOAPIC to ffff828bffffe000 (fec00000) (XEN) mapped IOAPIC to ffff828bffffd000 (d7eff000) (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Detected 2000.132 MHz processor. (XEN) AMD SVM: ASIDs enabled. (XEN) HVM: SVM enabled (XEN) HVM: Hardware Assisted Paging detected and enabled. (XEN) CPU0: AMD Quad-Core AMD Opteron(tm) Processor 8350 stepping 03 (XEN) Getting VERSION: 80050010 (XEN) Getting VERSION: 80050010 (XEN) Getting ID: 0 (XEN) Getting LVT0: 700 (XEN) Getting LVT1: 400...

...1321-reminder-centos-linux-is-eol-on-december-31st.md deleted file mode 100644 index 4336241..0000000 --- a/_posts/2021-12-02-1321-reminder-centos-linux-is-eol-on-december-31st.md +++ /dev/null @@ -1,10 +0,0 @@ ---- -title: "Reminder: CentOS Linux 8 is EOL on December 31st" -layout: "aside" -category: "news-and-events" ---- - -CentOS Linux 8 will reach End Of Life (EOL) on December 31st, 2021. We -recommend migrating to CentOS Stream 8 before that time. See [this comparision -of CentOS Linux and CentOS Stream](https://centos.org/cl-vs-cs/) for more -information. diff...

...drivers. I'm ok with a new feature flag, but we need to first seek a way to reuse the existing API. Thanks > > Regards, > -Siwei > > > > > Thanks > > > >> + * @vdev: vdpa device > >> + * @asid: address space identifier > >> + * Returns integer: success (0) or error (< 0) > >> * @get_vq_dma_dev: Get the dma device for a specific > >> * virtqueue (optional) > >> *...

The old virt-v2v code ignored boot kernels with names like "/boot/vmlinuz-*.rpmsave". The transscribed code did not because the Str module requires ‘|’ to be escaped as ‘\|’. This changes the code to use PCRE and fixes it. --- v2v/linux_bootloaders.ml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/v2v/linux_bootloaders.ml b/v2v/linux_bootloaders.ml index

Regards trying to install vmware-server and the libs problem just read on the vmware tech site that i need to install the 32 bit libs the app to function i have then tried to do yum install xorg-x11- devel.i386 but this fails on a transaction error any way to get this working ? -Stephen

Hi I've Vista64 accessible from Suse11 and would like to start my installed windows programs also from Suse. -How should I update? Wait for the 64bit Wine? -How could I use the programs, dlls etc all from Vista64? Any program for a such wine config? Thanks and regards Michael

...uru's... Here is my question. 1. Asterisk PBX - 5 Trunks / Incoming lines 2. 1 Building - 3 Companies (sharing phone system) Ok that's the basic layout. Here's the low down - Each company will have one dedicated channel for there company. The other 2 channels they want to be set aside as rollover's (rotary). That is not an issue. Where my concern is, how can I specify if they call Company A and primary line is busy and it rolls over to one of the spare lines, how do I designate which Auto Attendant is played. If it was certain channels set aside for certain companies that...

...quest size distribution on a global scale (also on a per process/pid basis). See for example http://prefetch.net/articles/observeiodtk.html Can anyone?recommend?an alternative to get similar information under CentOS? I looked into dtrace for linux but it seems still work in progress, even putting aside CDDL issues ... http://www.crisp.demon.co.uk/tools.html Thanks! Antonello

...t; > > > > > > --- a/drivers/vhost/vdpa.c > > > > > > > +++ b/drivers/vhost/vdpa.c > > > > > > > @@ -823,6 +823,18 @@ static void vhost_vdpa_unmap(struct vhost_vdpa *v, > > > > > > > vhost_vdpa_remove_as(v, asid); > > > > > > > } > > > > > > > +static void vhost_vdpa_clean_map(struct vhost_vdpa *v) > > > > > > > +{ > > > > > > > + struct vhost_vdpa_as *as; > > > > > > > + u32 asid; > > &...