Re: [Xen-devel] PV drivers and zero copying

On 31/07/17 10:03, Paul Durrant wrote: >> -Original Message- > [snip] >> Comparison for display use-case >> === >> >> 1 Number of grant references used >> 1-1 grant references: nr_pages >> 1-2 GNTTABOP_transfer: nr_pages >> 1-3 XENMEM_exchange: not an option >>

Re: [Xen-devel] [PATCH] VT-d: don't panic/warn on iommu=no-igfx

Tian, Kevin: > > From: Rusty Bird [mailto:rustyb...@openmailbox.org] > > +if ( !iommu_igfx ) > > +return; > > A message might be also helpful here so user can confirm its > boot option takes effect... Done, see v2 patch. Thanks for the feedback! Rusty signature.asc

Re: [Xen-devel] PV drivers and zero copying

Hi, Paul! On 07/31/2017 12:03 PM, Paul Durrant wrote: -Original Message- [snip] Comparison for display use-case === 1 Number of grant references used 1-1 grant references: nr_pages 1-2 GNTTABOP_transfer: nr_pages 1-3 XENMEM_exchange: not an option 2

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

Wei Liu writes ("Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters"): > On Mon, Jul 31, 2017 at 09:22:35AM +0100, Julien Grall wrote: .. > > Should not it be -EOPNOTSUPP to match return error when CONFIG_TRACE_PC is > > not? > > AIUI EOPNOTSUPP means "This is a

[Xen-devel] [PATCH 1/3] docs: consolidate release related documents

Move the existing docs from misc to docs/process. Signed-off-by: Wei Liu --- {misc => docs/process}/branching-checklist.txt | 0 {misc => docs/process}/release-checklist.txt | 0 2 files changed, 0 insertions(+), 0 deletions(-) rename {misc =>

[Xen-devel] [PATCH 2/3] docs: add xen-release-management.pandoc

A document for the release manager. Signed-off-by: Wei Liu --- docs/process/xen-release-management.pandoc | 594 + 1 file changed, 594 insertions(+) create mode 100644 docs/process/xen-release-management.pandoc diff --git

[Xen-devel] [PATCH 3/3] docs: hook up process/ to build system

Signed-off-by: Wei Liu --- docs/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/Makefile b/docs/Makefile index 942247202a..6743fa3744 100644 --- a/docs/Makefile +++ b/docs/Makefile @@ -17,7 +17,7 @@ MARKDOWNSRC-y := $(sort $(shell find misc

[Xen-devel] [PATCH 0/3] Docs: consolidate release related documents

Wei Liu (3): docs: consolidate release related documents docs: add xen-release-management.pandoc docs: hook up process/ to build system docs/Makefile | 2 +- {misc => docs/process}/branching-checklist.txt | 0 {misc =>

[Xen-devel] PV drivers and zero copying

Hi, all! The aim of this mail is to highlight and discuss possible approaches to implementing zero copying for PV drivers. Rationale behind this is that there are use-cases when drivers operate with big shared buffers, e.g. display, when memory copying from front’s buffer into back’s one may

[Xen-devel] [PATCH v2] VT-d: don't panic/warn on iommu=no-igfx

When operating on an Intel graphics device, iommu_enable_translation() panicked (force_iommu==1) or warned (force_iommu==0) about the BIOS if is_igd_vt_enabled_quirk() returned 0. That's good if the actual BIOS problem has been detected. But since commit 1463411, returning 0 could also happen if

Re: [Xen-devel] PV drivers and zero copying

Hi, Julien! On 07/31/2017 12:24 PM, Julien Grall wrote: (+ Joao) On 31/07/17 09:34, Oleksandr Andrushchenko wrote: Hi, all! Hi Oleksandr, The aim of this mail is to highlight and discuss possible approaches to implementing zero copying for PV drivers. Rationale behind this is that there

Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

On Mon, 2017-07-31 at 03:57 -0600, Jan Beulich wrote: > Are there any such relocations? The compiler shouldn't emit data needing > relocation to .rodata, so if at all such might live in assembly code. But yes, > if there are any, things would have been latently broken even before.  $ git diff

Re: [Xen-devel] PV drivers and zero copying

(+ Joao) On 31/07/17 09:34, Oleksandr Andrushchenko wrote: Hi, all! Hi Oleksandr, The aim of this mail is to highlight and discuss possible approaches to implementing zero copying for PV drivers. Rationale behind this is that there are use-cases when drivers operate with big shared buffers,

[Xen-devel] [distros-debian-sid test] 71921: tolerable trouble: blocked/broken/fail/pass

flight 71921 distros-debian-sid real [real] http://osstest.xs.citrite.net/~osstest/testlogs/logs/71921/ Failures :-/ but no regressions. Tests which did not succeed, but are not blocking: test-arm64-arm64-armhf-sid-netboot-pygrub 1 build-check(1)blocked n/a build-arm64-pvops

Re: [Xen-devel] PV drivers and zero copying

On 07/31/2017 12:47 PM, Julien Grall wrote: On 31/07/17 10:46, Oleksandr Andrushchenko wrote: Hi, Julien! On 07/31/2017 12:24 PM, Julien Grall wrote: (+ Joao) On 31/07/17 09:34, Oleksandr Andrushchenko wrote: Hi, all! Hi Oleksandr, The aim of this mail is to highlight and discuss

Re: [Xen-devel] PV drivers and zero copying

On 31/07/17 10:52, Oleksandr Andrushchenko wrote: On 07/31/2017 12:47 PM, Julien Grall wrote: On 31/07/17 10:46, Oleksandr Andrushchenko wrote: Do you have any example of hardware? What are the performance you require with them? Currently our target is Renesas R-Car Gen3 At the moment I

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

On Mon, Jul 31, 2017 at 11:13:33AM +0100, Julien Grall wrote: > > > On 31/07/17 10:56, Wei Liu wrote: > > On Mon, Jul 31, 2017 at 09:22:35AM +0100, Julien Grall wrote: > > > Hi, > > > > > > On 07/28/2017 04:37 PM, Wei Liu wrote: > > > > On Wed, Jul 26, 2017 at 12:43:45PM +0200, Felix Schmoll

Re: [Xen-devel] PV drivers and zero copying

On 07/31/2017 11:37 AM, Oleksandr Andrushchenko wrote: > On 07/31/2017 01:04 PM, Julien Grall wrote: >> On 31/07/17 10:52, Oleksandr Andrushchenko wrote: >>> On 07/31/2017 12:47 PM, Julien Grall wrote: On 31/07/17 10:46, Oleksandr Andrushchenko wrote: Do you have any example of hardware?

Re: [Xen-devel] [RFC PATCH 00/15] RFC: SGX virtualization design and draft patches

Hi Wei, Thanks for your comments. Please see my reply below. On 7/29/2017 1:40 AM, Wei Liu wrote: On Tue, Jul 18, 2017 at 08:22:55PM +1200, Huang, Kai wrote: Hi Wei, Thank you very much for comments. Please see my reply below. On 7/17/2017 9:16 PM, Wei Liu wrote: Hi Kai Thanks for this

Re: [Xen-devel] PV drivers and zero copying

> -Original Message- [snip] > Comparison for display use-case > === > > 1 Number of grant references used > 1-1 grant references: nr_pages > 1-2 GNTTABOP_transfer: nr_pages > 1-3 XENMEM_exchange: not an option > > 2 Effect of DomU crash on Dom0 (its mapped

[Xen-devel] [linux-3.18 test] 112387: trouble: blocked/broken/fail/pass

flight 112387 linux-3.18 real [real] http://logs.test-lab.xenproject.org/osstest/logs/112387/ Failures and problems with tests :-( Tests which did not succeed and are blocking, including tests which could not be run: build-arm64-xsm 2 hosts-allocate broken REGR. vs. 112102

Re: [Xen-devel] PV drivers and zero copying

On 31/07/17 10:46, Oleksandr Andrushchenko wrote: Hi, Julien! On 07/31/2017 12:24 PM, Julien Grall wrote: (+ Joao) On 31/07/17 09:34, Oleksandr Andrushchenko wrote: Hi, all! Hi Oleksandr, The aim of this mail is to highlight and discuss possible approaches to implementing zero copying

Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

>>> David Woodhouse 07/31/17 1:19 AM >>> >On Sun, 2017-07-30 at 13:50 +0100, Andrew Cooper wrote: >> On 30/07/17 07:16, Jan Beulich wrote: >> > > > > David Woodhouse 07/20/17 5:22 PM >>> >> > > This includes stuff lke the hypercall tables which we really

Re: [Xen-devel] [PATCH v3 extra 00/11] x86: refactor mm.c: page APIs and hypercalls

>>> Wei Liu 07/30/17 5:43 PM >>> >Note that in the stubs I choose to return EINVAL but maybe we should just BUG() >there because those paths aren't supposed to be taken when !CONFIG_PV. And I'm >sure common code will BUG_ON() or BUG() sooner or later. Thoughts? BUG() - yes,

Re: [Xen-devel] PV drivers and zero copying

Hey Oleksandr, On 07/31/2017 09:34 AM, Oleksandr Andrushchenko wrote: > Hi, all! > [snip] > > Comparison for display use-case > === > > 1 Number of grant references used > 1-1 grant references: nr_pages > 1-2 GNTTABOP_transfer: nr_pages > 1-3 XENMEM_exchange: not an

Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

>>> Andrew Cooper 07/30/17 2:50 PM >>> >On 30/07/17 07:16, Jan Beulich wrote: > David Woodhouse 07/20/17 5:22 PM >>> >>> This includes stuff lke the hypercall tables which we really want >>> to be read-only. And they were going into

Re: [Xen-devel] PV drivers and zero copying

On 07/31/2017 01:04 PM, Julien Grall wrote: On 31/07/17 10:52, Oleksandr Andrushchenko wrote: On 07/31/2017 12:47 PM, Julien Grall wrote: On 31/07/17 10:46, Oleksandr Andrushchenko wrote: Do you have any example of hardware? What are the performance you require with them? Currently our

Re: [Xen-devel] [XenSummit 2017] Build tools follow up

ping On 07/17/2017 03:47 PM, Oleksandr Andrushchenko wrote: Hi, all! This is a follow-up on Xen distribution build systems we saw at the summit and invitation for sharing thoughts and ways we build our images and distros. I would like to specifically ask OpenXT project to reply with the

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

Hi, On 07/28/2017 04:37 PM, Wei Liu wrote: On Wed, Jul 26, 2017 at 12:43:45PM +0200, Felix Schmoll wrote: +d->tracing_buffer = NULL; + +if ( copy_to_guest(buf, temp, d->tracing_buffer_pos) ) +ret = -EFAULT; + +xfree(temp); + +ret =

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

On Mon, Jul 31, 2017 at 09:22:35AM +0100, Julien Grall wrote: > Hi, > > On 07/28/2017 04:37 PM, Wei Liu wrote: > > On Wed, Jul 26, 2017 at 12:43:45PM +0200, Felix Schmoll wrote: > > > +d->tracing_buffer = NULL; > > > + > > > +if ( copy_to_guest(buf, temp, d->tracing_buffer_pos) )

Re: [Xen-devel] Regression PCI passthrough from 4.5.5 to 4.6.0-rc1

>>> "Andreas Kinzler" 07/17/17 6:32 PM >>> >>> Jan, I still have access to the hardware so perhaps we can finally solve >>> this problem. >> Feel free to go ahead; I'll be on vacation for the next three weeks. > >Perhaps we can shortcut debugging a bit because I looked through the

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

On 31/07/17 10:56, Wei Liu wrote: On Mon, Jul 31, 2017 at 09:22:35AM +0100, Julien Grall wrote: Hi, On 07/28/2017 04:37 PM, Wei Liu wrote: On Wed, Jul 26, 2017 at 12:43:45PM +0200, Felix Schmoll wrote: +d->tracing_buffer = NULL; + +if ( copy_to_guest(buf, temp,

Re: [Xen-devel] PV drivers and zero copying

On 07/31/2017 12:31 PM, Andrew Cooper wrote: On 31/07/17 10:03, Paul Durrant wrote: -Original Message- [snip] Comparison for display use-case === 1 Number of grant references used 1-1 grant references: nr_pages 1-2 GNTTABOP_transfer: nr_pages 1-3

Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

On Sun, 2017-07-30 at 00:16 -0600, Jan Beulich wrote: > > > > > > > > > > > > > David Woodhouse 07/20/17 5:22 PM >>> > > This includes stuff lke the hypercall tables which we really want > > to be read-only. And they were going into .data.read-mostly. > Yes, we'd like them

Re: [Xen-devel] PV drivers and zero copying

Hi, Joao! On 07/31/2017 02:03 PM, Joao Martins wrote: Hey Oleksandr, On 07/31/2017 09:34 AM, Oleksandr Andrushchenko wrote: Hi, all! [snip] Comparison for display use-case === 1 Number of grant references used 1-1 grant references: nr_pages 1-2

Re: [Xen-devel] [PATCH v2 5/5] livepatch: Declare live patching as a supported feature

>>> Konrad Rzeszutek Wilk 07/26/17 9:48 PM >>> >From: Ross Lagerwall > >See docs/features/livepatch.pandoc for the details. > >Signed-off-by: Ross Lagerwall >Signed-off-by: Konrad Rzeszutek Wilk

Re: [Xen-devel] [RFC v2 09/12] tools: implement the new get hw info interface suitable to all psr allocation features.

On Thu, Jul 20, 2017 at 04:49:10PM +0800, Yi Sun wrote: > This patch implements a new get hw info interface suitable for all psr > allocation > features and the whole flow. It also enables MBA support in tools to get MBA > HW info. > > Signed-off-by: Yi Sun > --- >

Re: [Xen-devel] [RFC v2 03/12] x86: rename 'cbm_type' to 'psr_val_type' to make it general.

On Thu, Jul 20, 2017 at 04:49:04PM +0800, Yi Sun wrote: > This patch renames 'cbm_type' to 'psr_val_type' to make it be general. > Then, we can reuse this for all psr allocation features. > > Signed-off-by: Yi Sun The code LGTM.

Re: [Xen-devel] [RFC v2 08/12] tools: create general interfaces to support psr allocation features.

On Thu, Jul 20, 2017 at 04:49:09PM +0800, Yi Sun wrote: [...] > + > +#ifdef LIBXL_HAVE_PSR_MBA > +/* > + * Function to set a domain's value. It operates on a single or multiple > + * target(s) defined in 'target_map'. 'target_map' specifies all the sockets > + * to be operated on. > + */ > +int

Re: [Xen-devel] [RFC v2 04/12] x86: implement data structure and CPU init flow for MBA.

On Thu, Jul 20, 2017 at 04:49:05PM +0800, Yi Sun wrote: > This patch implements main data structures of MBA. > > Like CAT features, MBA HW info has cos_max which means the max cos > registers number, and thrtl_max which means the max throttle value > (delay value). It also has a flag to represent

Re: [Xen-devel] PVH VCPU hotplug support v7?

On 07/31/2017 03:29 PM, Boris Ostrovsky wrote: On 07/31/2017 10:12 AM, Andrew Cooper wrote: On 31/07/17 14:55, Boris Ostrovsky wrote: On 07/31/2017 09:20 AM, Ross Lagerwall wrote: Hi Boris, I've modified your PVH VCPU hotplug support v6 patch series [1] to support HVM guests running _with_ a

Re: [Xen-devel] [PATCH v2 1/2] libxl: use xen-blkback for 'vbd' disk types by default

On Mon, Jul 31, 2017 at 04:56:04PM +0100, Wei Liu wrote: > On Fri, Jul 28, 2017 at 06:42:13PM +0200, Marek Marczykowski-Górecki wrote: > > This will allow later to make HVM domain without qemu in dom0 (in > > addition to the one in stubdomain). > > > > Signed-off-by: Marek Marczykowski-Górecki

Re: [Xen-devel] [PATCH v2 3/5] xen/livepatch/ARM32: Don't load and crash on livepatches loaded with wrong alignment.

On Mon, Jul 31, 2017 at 07:55:34AM -0600, Jan Beulich wrote: > >>> Konrad Rzeszutek Wilk 07/26/17 9:50 PM >>> > >--- a/docs/misc/livepatch.markdown > >+++ b/docs/misc/livepatch.markdown > >@@ -279,6 +279,10 @@ It may also have some architecture-specific sections. > >For

Re: [Xen-devel] [PATCH v5 3/8] mm: Scrub pages in alloc_heap_pages() if needed

On 07/31/2017 11:16 AM, Jan Beulich wrote: Boris Ostrovsky 07/23/17 4:07 AM >>> >> On 06/27/2017 02:00 PM, Jan Beulich wrote: >> Boris Ostrovsky 06/22/17 8:55 PM >>> @@ -862,10 +879,19 @@ static struct page_info

Re: [Xen-devel] [PATCH] xen:arm earlyprintk configuration for Hikey 960 boards

On Thu, Jul 27, 2017 at 10:52:40AM +0100, Julien Grall wrote: > Hi Konrad, > > On 27/07/17 02:18, Konrad Rzeszutek Wilk wrote: > > On Wed, Jul 26, 2017 at 05:59:15PM +0100, Julien Grall wrote: > > > Hi Konrad, > > > > > > On 26/07/17 17:54, Konrad Rzeszutek Wilk wrote: > > > > Introduce an

Re: [Xen-devel] [PATCH v5 4/8] mm: Scrub memory from idle loop

On 07/31/2017 11:20 AM, Jan Beulich wrote: Boris Ostrovsky 07/23/17 4:14 AM >>> @@ -1050,17 +1120,42 @@ static void scrub_free_pages(unsigned int node) -if ( node_need_scrub[node] == 0 ) -return; +

Re: [Xen-devel] [RFC v4]Proposal to allow setting up shared memory areas between VMs from xl config file

On Mon, Jul 31, 2017 at 01:09:04AM +0800, Zhongze Liu wrote: > > @cache_policyCan only appear when @role = master. >The stage-2 cacheability/shareability attributes of the >shared memory area. Currently, only two policies are >

Re: [Xen-devel] [PATCH v5 1/8] mm: Place unscrubbed pages at the end of pagelist

On 07/31/2017 10:45 AM, Jan Beulich wrote: Boris Ostrovsky 07/23/17 4:01 AM >>> >> On 06/27/2017 01:06 PM, Jan Beulich wrote: >> Boris Ostrovsky 06/22/17 8:55 PM >>> +{ +if ( pg < first_dirty_pg )

Re: [Xen-devel] PVH VCPU hotplug support v7?

On 07/31/2017 11:36 AM, Ross Lagerwall wrote: > On 07/31/2017 03:29 PM, Boris Ostrovsky wrote: >> On 07/31/2017 10:12 AM, Andrew Cooper wrote: >>> On 31/07/17 14:55, Boris Ostrovsky wrote: On 07/31/2017 09:20 AM, Ross Lagerwall wrote: > Hi Boris, > > I've modified your PVH VCPU

Re: [Xen-devel] [PATCH v2 2/2] libxl: do not start dom0 qemu for stubdomain when not needed

Wei Liu writes ("Re: [PATCH v2 2/2] libxl: do not start dom0 qemu for stubdomain when not needed"): > Hmm... I don't think there is requirement in CODING_STYLE for > multiple-line comment, so there are quite a few styles in use. But > looking at libxl code the prevailing style seems to be: > >

[Xen-devel] [libvirt test] 112392: trouble: blocked/broken/pass

flight 112392 libvirt real [real] http://logs.test-lab.xenproject.org/osstest/logs/112392/ Failures and problems with tests :-( Tests which did not succeed and are blocking, including tests which could not be run: build-arm64-pvops 2 hosts-allocate broken REGR. vs. 112276

Re: [Xen-devel] [PATCH 0/3] Docs: consolidate release related documents

On Mon, Jul 31, 2017 at 02:51:21PM +0100, Ian Jackson wrote: > Wei Liu writes ("[PATCH 0/3] Docs: consolidate release related documents"): > > Wei Liu (3): > > docs: consolidate release related documents > > docs: add xen-release-management.pandoc > > docs: hook up process/ to build system >

Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

On Mon, 2017-07-31 at 07:15 -0600, Jan Beulich wrote: > > > > David Woodhouse 07/31/17 1:02 PM >>> > > On Sun, 2017-07-30 at 00:16 -0600, Jan Beulich wrote: > > > > > > David Woodhouse 07/20/17 5:22 PM >>> > > > > This includes stuff lke the hypercall

Re: [Xen-devel] [PATCH v2 1/2] libxl: use xen-blkback for 'vbd' disk types by default

On Fri, Jul 28, 2017 at 06:42:13PM +0200, Marek Marczykowski-Górecki wrote: > This will allow later to make HVM domain without qemu in dom0 (in > addition to the one in stubdomain). > > Signed-off-by: Marek Marczykowski-Górecki > > --- > This is extracted from

Re: [Xen-devel] [PATCH v5 3/8] mm: Scrub pages in alloc_heap_pages() if needed

>>> Boris Ostrovsky 07/23/17 4:07 AM >>> >On 06/27/2017 02:00 PM, Jan Beulich wrote: > Boris Ostrovsky 06/22/17 8:55 PM >>> >>> @@ -862,10 +879,19 @@ static struct page_info *alloc_heap_pages( >>> if ( d != NULL ) >>>

Re: [Xen-devel] [PATCH v5 4/8] mm: Scrub memory from idle loop

>>> Boris Ostrovsky 07/23/17 4:14 AM >>> >>> @@ -1050,17 +1120,42 @@ static void scrub_free_pages(unsigned int node) >>> -if ( node_need_scrub[node] == 0 ) >>> -return; >>> +if ( preempt || (node_need_scrub[node] ==

Re: [Xen-devel] [PATCH v2 2/2] libxl: do not start dom0 qemu for stubdomain when not needed

On Fri, Jul 28, 2017 at 06:42:14PM +0200, Marek Marczykowski-Górecki wrote: > Do not setup vfb+vkb when no access method was configured. Then check if > qemu is really needed. > > The only not configurable thing forcing qemu running in dom0 after this > change are consoles used to save/restore.

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

On 31/07/17 12:58, Paul Durrant wrote: >> -Original Message- >> From: Xen-devel [mailto:xen-devel-boun...@lists.xen.org] On Behalf Of Ian >> Jackson >> Sent: 31 July 2017 12:14 >> To: Wei Liu >> Cc: sstabell...@kernel.org; Felix Schmoll ;

Re: [Xen-devel] PV drivers and zero copying

On 07/31/2017 02:58 PM, Joao Martins wrote: On 07/31/2017 12:41 PM, Oleksandr Andrushchenko wrote: Hi, Joao! On 07/31/2017 02:03 PM, Joao Martins wrote: Hey Oleksandr, On 07/31/2017 09:34 AM, Oleksandr Andrushchenko wrote: Hi, all! [snip] Comparison for display use-case

Re: [Xen-devel] [PATCH v2 2/5] livepatch: Include sizes when an mismatch occurs

>>> Konrad Rzeszutek Wilk 07/26/17 9:48 PM >>> >--- a/xen/common/livepatch.c >+++ b/xen/common/livepatch.c >@@ -457,6 +457,24 @@ static int secure_payload(struct payload *payload, struct >livepatch_elf *elf) >return rc; >} > >+static int check_section(const struct

Re: [Xen-devel] [PATCH 0/3] Docs: consolidate release related documents

Wei Liu writes ("[PATCH 0/3] Docs: consolidate release related documents"): > Wei Liu (3): > docs: consolidate release related documents > docs: add xen-release-management.pandoc > docs: hook up process/ to build system FWIW, Acked-by: Ian Jackson However,

Re: [Xen-devel] [PATCH v14 13/23] x86: refactor psr: CDP: implement CPU init flow.

>>> Yi Sun 07/15/17 2:48 AM >>> >@@ -272,7 +312,8 @@ static int cat_init_feature(const struct cpuid_leaf *regs, >if ( !opt_cpu_info ) >return 0; > >-printk(XENLOG_INFO "CAT: enabled on socket %u, cos_max:%u, cbm_len:%u\n", >+printk(XENLOG_INFO "%s: enabled on

Re: [Xen-devel] PVH VCPU hotplug support v7?

On 07/31/2017 10:12 AM, Andrew Cooper wrote: > On 31/07/17 14:55, Boris Ostrovsky wrote: >> On 07/31/2017 09:20 AM, Ross Lagerwall wrote: >>> Hi Boris, >>> >>> I've modified your PVH VCPU hotplug support v6 patch series [1] to >>> support HVM guests running _with_ a device model for XenServer's

Re: [Xen-devel] [PATCH v7 00/14] arm/mem_access: Walk guest page tables in SW if mem_access is active

On 18/07/17 13:24, Sergej Proskurin wrote: > Hi all, Hi, > > The function p2m_mem_access_check_and_get_page is called from the function > get_page_from_gva if mem_access is active and the hardware-aided translation > of > the given guest virtual address (gva) into machine address fails. That

Re: [Xen-devel] [PATCH v2 1/2] libxl: Implement the handler to handle unrecoverable AER errors.

On Fri, Jul 28, 2017 at 04:56:56PM -0700, Venu Busireddy wrote: > On 2017-07-28 17:39:52 +0100, Ian Jackson wrote: > > Venu Busireddy writes ("[PATCH v2 1/2] libxl: Implement the handler to > > handle unrecoverable AER errors."): > > > Implement the callback function to handle unrecoverable AER

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

>>> Andrew Cooper 07/31/17 2:01 PM >>> >On 31/07/17 12:58, Paul Durrant wrote: >> From: Xen-devel [mailto:xen-devel-boun...@lists.xen.org] On Behalf Of Ian >> Jackson >> Sent: 31 July 2017 12:14 >>> Wei Liu writes ("Re: [Xen-devel] [PATCH v2] xen: Implement hypercall

Re: [Xen-devel] [PATCH v2 4/5] alternative/x86/arm32: Align altinstructions (and altinstr_replacement) sections.

>>> Konrad Rzeszutek Wilk 07/26/17 9:50 PM >>> >On x86 the bloat-o-meter detects that with this change the file shrinks: >add/remove: 1/0 grow/shrink: 0/2 up/down: 156/-367 (-211) >function old new delta >get_page_from_gfn

Re: [Xen-devel] [PATCH v14 09/23] x86: refactor psr: L3 CAT: set value: assemble features value array.

>>> Yi Sun 07/15/17 2:47 AM >>> >@@ -619,6 +710,46 @@ static int insert_val_into_array(uint32_t val[], >enum cbm_type type, >uint32_t new_val) >{ >+const struct feat_node *feat; >+const struct feat_props *props; >+unsigned int i; >+int ret; >+ >+

Re: [Xen-devel] [RFC v2 02/12] Rename PSR sysctl/domctl interfaces and xsm policy to make them be general.

Normally there is no need to have period at the end of the subject line. On Thu, Jul 20, 2017 at 04:49:03PM +0800, Yi Sun wrote: > This patch renames PSR sysctl/domctl interfaces and related xsm policy to > make them be general for all resource allocation features but not only > for CAT. Then, we

Re: [Xen-devel] [PATCH v2 1/2] libxl: Implement the handler to handle unrecoverable AER errors.

On Fri, Jul 28, 2017 at 10:15:40AM -0700, Venu Busireddy wrote: > On 2017-07-28 16:58:13 +0100, Wei Liu wrote: > > On Wed, Jul 26, 2017 at 07:16:38PM -0500, Venu Busireddy wrote: > > > Implement the callback function to handle unrecoverable AER errors, and > > > also the public APIs that can be

Re: [Xen-devel] [PATCH v5 1/8] mm: Place unscrubbed pages at the end of pagelist

>>> Boris Ostrovsky 07/23/17 4:01 AM >>> >On 06/27/2017 01:06 PM, Jan Beulich wrote: > Boris Ostrovsky 06/22/17 8:55 PM >>> >>> +{ >>> +if ( pg < first_dirty_pg ) >>> +first_dirty = (first_dirty_pg -

[Xen-devel] [qemu-mainline test] 112389: regressions - trouble: blocked/broken/fail/pass

flight 112389 qemu-mainline real [real] http://logs.test-lab.xenproject.org/osstest/logs/112389/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: build-arm64-pvops 2 hosts-allocate broken REGR. vs. 111765 build-arm64-xsm

Re: [Xen-devel] [RFC v2 10/12] tools: implemet new get value interface suitable for all psr allocation features.

On Thu, Jul 20, 2017 at 04:49:11PM +0800, Yi Sun wrote: > This patch implements a new get value interface in tools suitable for all psr > allocation features and the whole flow. It also enables MBA support in tools > to get MBA value. This suggests this patch can be at least broken into two? >

Re: [Xen-devel] [PATCH v2 00/13] "Non-shared" IOMMU support on ARM

Hi, Kevin On Mon, Jul 31, 2017 at 8:57 AM, Tian, Kevin wrote: >> From: Oleksandr Tyshchenko >> Sent: Wednesday, July 26, 2017 1:27 AM >> >> From: Oleksandr Tyshchenko >> >> Hi, all. >> >> The purpose of this patch series is to create a base

[Xen-devel] PVH VCPU hotplug support v7?

Hi Boris, I've modified your PVH VCPU hotplug support v6 patch series [1] to support HVM guests running _with_ a device model for XenServer's purposes. This is useful because it moves the vCPU hotplug handling out of QEMU and allows it to mostly be shared with PVH. It will also allow

Re: [Xen-devel] [PATCH v2 1/5] livepatch: Tighten alignment checks.

>>> Konrad Rzeszutek Wilk 07/26/17 9:50 PM >>> >--- a/xen/common/livepatch_elf.c >+++ b/xen/common/livepatch_elf.c >@@ -86,6 +86,19 @@ static int elf_resolve_sections(struct livepatch_elf *elf, >const void *data) >delta < sizeof(Elf_Ehdr) ? "at ELF header" : "is past end");

Re: [Xen-devel] [PATCH] xen/events: Fix interrupt lost during irq_disable and irq_enable

On 07/29/2017 12:59 PM, Liu Shuo wrote: > Here is a device has xen-pirq-MSI interrupt. Dom0 might lost interrupt > during driver irq_disable/irq_enable. Here is the scenario, > 1. irq_disable -> disable_dynirq -> mask_evtchn(irq channel) > 2. dev interrupt raised by HW and Xen mark its evtchn as

Re: [Xen-devel] [PATCH v6 05/12] x86/domctl: Handle ACPI access from domctl

On 07/31/2017 10:14 AM, Ross Lagerwall wrote: > On 01/03/2017 02:04 PM, Boris Ostrovsky wrote: >> Signed-off-by: Boris Ostrovsky >> --- >> Changes in v6: >> * Adjustments to to patch 4 changes. >> * Added a spinlock for VCPU map access >> * Return an error on guest

Re: [Xen-devel] [PATCH v2 3/5] xen/livepatch/ARM32: Don't load and crash on livepatches loaded with wrong alignment.

>>> Konrad Rzeszutek Wilk 07/26/17 9:50 PM >>> >--- a/docs/misc/livepatch.markdown >+++ b/docs/misc/livepatch.markdown >@@ -279,6 +279,10 @@ It may also have some architecture-specific sections. For >example: >* Exception tables. >* Relocations for each of these sections. >

Re: [Xen-devel] PVH VCPU hotplug support v7?

On 07/31/2017 09:20 AM, Ross Lagerwall wrote: > Hi Boris, > > I've modified your PVH VCPU hotplug support v6 patch series [1] to > support HVM guests running _with_ a device model for XenServer's > purposes. This is useful because it moves the vCPU hotplug handling > out of QEMU and allows it to

Re: [Xen-devel] PVH VCPU hotplug support v7?

On 31/07/17 14:55, Boris Ostrovsky wrote: > On 07/31/2017 09:20 AM, Ross Lagerwall wrote: >> Hi Boris, >> >> I've modified your PVH VCPU hotplug support v6 patch series [1] to >> support HVM guests running _with_ a device model for XenServer's >> purposes. This is useful because it moves the vCPU

Re: [Xen-devel] [PATCH v14 16/23] x86: L2 CAT: implement CPU init flow.

>>> Yi Sun 07/15/17 2:49 AM >>> >@@ -273,6 +275,12 @@ static int cat_init_feature(const struct cpuid_leaf *regs, >struct psr_socket_info *info, >enum psr_feat_type type) >{ >+const char * const cat_feat_name[FEAT_TYPE_NUM] = { Strictly speaking the blank after the

Re: [Xen-devel] PV drivers and zero copying

On 07/31/2017 12:41 PM, Oleksandr Andrushchenko wrote: > Hi, Joao! > > On 07/31/2017 02:03 PM, Joao Martins wrote: >> Hey Oleksandr, >> >> On 07/31/2017 09:34 AM, Oleksandr Andrushchenko wrote: >>> Hi, all! >>> >> [snip] >>> Comparison for display use-case >>> === >>>

Re: [Xen-devel] [PATCH v2] xen: Implement hypercall for tracing of program counters

> -Original Message- > From: Xen-devel [mailto:xen-devel-boun...@lists.xen.org] On Behalf Of Ian > Jackson > Sent: 31 July 2017 12:14 > To: Wei Liu > Cc: sstabell...@kernel.org; Felix Schmoll ; > Andrew Cooper ;

[Xen-devel] [linux-4.9 test] 112388: trouble: blocked/broken/fail/pass

flight 112388 linux-4.9 real [real] http://logs.test-lab.xenproject.org/osstest/logs/112388/ Failures and problems with tests :-( Tests which did not succeed and are blocking, including tests which could not be run: build-arm64-xsm 2 hosts-allocate broken REGR. vs. 112193

Re: [Xen-devel] xen/link: Move .data.rel.ro sections into .rodata for final link

>>> David Woodhouse 07/31/17 1:02 PM >>> >On Sun, 2017-07-30 at 00:16 -0600, Jan Beulich wrote: >> > > > David Woodhouse 07/20/17 5:22 PM >>> >> > This includes stuff lke the hypercall tables which we really want >> > to be read-only. And they were going

Re: [Xen-devel] [PATCH v6 05/12] x86/domctl: Handle ACPI access from domctl

On 01/03/2017 02:04 PM, Boris Ostrovsky wrote: Signed-off-by: Boris Ostrovsky --- Changes in v6: * Adjustments to to patch 4 changes. * Added a spinlock for VCPU map access * Return an error on guest trying to write VCPU map snip -static int

Re: [Xen-devel] [PATCH v14 12/23] x86: refactor psr: L3 CAT: set value: implement write msr flow.

>>> Yi Sun 07/15/17 2:48 AM >>> >static int write_psr_msrs(unsigned int socket, unsigned int cos, >const uint32_t val[], unsigned int array_len, >enum psr_feat_type feat_type) >{ >-return -ENOENT; >+int ret; >+struct psr_socket_info *info =

Re: [Xen-devel] [PATCH v4 06/13] libxl: change p9 to use generec add function

On Sun, Jul 30, 2017 at 09:42:09PM +0300, Oleksandr Grytsov wrote: > On Fri, Jul 28, 2017 at 7:23 PM, Wei Liu wrote: > > On Fri, Jul 28, 2017 at 03:11:34PM +0100, Wei Liu wrote: > >> On Tue, Jul 18, 2017 at 05:25:23PM +0300, Oleksandr Grytsov wrote: > >> [...] > >> > /*

[Xen-devel] [PATCH v1 1/1] xen/arm: Disable PCIe on the ZynqMP

From: "Edgar E. Iglesias" Disable PCIe on the ZynqMP. Xen does not yet know how to map the controller and dom0 fails to boot with the node enabled. Signed-off-by: Edgar E. Iglesias --- xen/arch/arm/platforms/xilinx-zynqmp.c | 1 + 1 file

[Xen-devel] [PATCH v1 0/1] xen/arm: zynqmp: Disable PCIe

From: "Edgar E. Iglesias" Hi, We're seeing panics in dom0 with PCIe enabled due to what seems to be wrongly created mappings by Xen. With older kernels we didn't see the panics but PCIe wasn't functional in dom0. This disables the PCIe nodes on the ZynqMP until

[Xen-devel] [PATCH] x86/apic/x2apic: Share IRQ vector between cluster members only when no cpumask is specified

We have limited number (slightly under NR_DYNAMIC_VECTORS=192) of IRQ vectors that are available to each processor. Currently, when x2apic cluster mode is used (which is default), each vector is shared among all processors in the cluster. With many IRQs (as is the case on systems with multiple

Re: [Xen-devel] [XenSummit 2017] Shared coprocessor framework followup

On Tue, Jul 18, 2017 at 08:10:15PM +0300, Andrii Anisov wrote: > **Dear All, > > During the developers summit a Shared Coprocessor Framework (SCF) concept > was presented. Noticeable interest from community was discovered during > discussions. So this is a call for all interested parties to

Re: [Xen-devel] [RFC v4]Proposal to allow setting up shared memory areas between VMs from xl config file

On Mon, 31 Jul 2017, Wei Liu wrote: > On Mon, Jul 31, 2017 at 01:09:04AM +0800, Zhongze Liu wrote: > > > > @cache_policyCan only appear when @role = master. > >The stage-2 cacheability/shareability attributes of the > >shared memory area. Currently,

Re: [Xen-devel] [RFC v4]Proposal to allow setting up shared memory areas between VMs from xl config file

On Mon, 31 Jul 2017, Zhongze Liu wrote: > I'm extremely sorry that I mistakenly copied and pasted an immediate > version of the proposal here. As you might have already noticed, some > of the content obviously conflicts with itself. Please see the new one below. > And some typo's and indentation

Re: [Xen-devel] DESIGN v2: CPUID part 3

On Wed, Jul 05, 2017 at 02:22:00PM +0100, Joao Martins wrote: > On 07/05/2017 12:16 PM, Andrew Cooper wrote: > > On 05/07/17 10:46, Joao Martins wrote: > >> Hey Andrew, > >> > >> On 07/04/2017 03:55 PM, Andrew Cooper wrote: > >>> Presented herewith is the a plan for the final part of CPUID work,

[Xen-devel] [xen-unstable test] 112391: regressions - trouble: blocked/broken/fail/pass

flight 112391 xen-unstable real [real] http://logs.test-lab.xenproject.org/osstest/logs/112391/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: build-arm64-xsm 2 hosts-allocate broken REGR. vs. 112286 build-arm64-pvops

Re: [Xen-devel] PV drivers and zero copying

On Mon, 31 Jul 2017, Oleksandr Andrushchenko wrote: > 3 Sharing with page exchange (XENMEM_exchange) > == > > This API was pointed to me by Stefano Stabellini as one of the possible ways > to > achieve zero copying and share physically contiguous

Re: [Xen-devel] [PATCH] xen/arm: Fix comments coding style in assembler files

On Thu, 27 Jul 2017, Andrii Anisov wrote: > From: Andrii Anisov > > Signed-off-by: Andrii Anisov Reviewed-by: Stefano Stabellini > --- > xen/arch/arm/arm32/debug-8250.inc | 12 +++-- >

[Xen-devel] [linux-linus test] 112390: regressions - trouble: blocked/broken/fail/pass

flight 112390 linux-linus real [real] http://logs.test-lab.xenproject.org/osstest/logs/112390/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: build-arm64 2 hosts-allocate broken REGR. vs. 110515 build-arm64-pvops

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