Re: [Xen-devel] [PATCH RFC V2 42/45] xen/sched: add fall back to idle vcpu when scheduling item

2019-05-16 Thread Jan Beulich
>>> On 17.05.19 at 07:13, wrote: > On 16/05/2019 16:41, Jan Beulich wrote: > On 16.05.19 at 15:51, wrote: >>> On 16/05/2019 15:05, Jan Beulich wrote: >>> On 06.05.19 at 08:56, wrote: > --- a/xen/arch/x86/domain.c > +++ b/xen/arch/x86/domain.c > @@ -154,6 +154,24 @@ static voi

[Xen-devel] [xen-4.7-testing test] 136266: regressions - FAIL

2019-05-16 Thread osstest service owner
flight 136266 xen-4.7-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136266/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: build-i3866 xen-buildfail REGR. vs. 133596 build-i386-prev

Re: [Xen-devel] [PATCH v2] coverage: filter out libfdt.o and libelf.o

2019-05-16 Thread Viktor Mitin
On Thu, May 16, 2019 at 06:40:14PM +0100, Julien Grall wrote: > > No need to resend the patch, I can do the modification when I will commit the > patch. > Hi Julien, Thank you for detailed description provided. Will take into consideration all the notes. Thanks

Re: [Xen-devel] Anyone using blktap2?

2019-05-16 Thread Rich Persaud
> On May 13, 2019, at 11:34, Wei Liu wrote: > > Hello > > Seeing that you were the last people who changed blktap2 in a meaningful > way: do you use it at all? As discussed F2F in a Xen Summit 2017 design session: OpenXT and Citrix XenServer use blktap. VHD encryption support was recently upst

Re: [Xen-devel] [PATCH 2/3] xen/drivers/char: Don't require vpl011 for all non-x86 archs

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 21:30, wrote: > On Thu, May 16, 2019 at 3:32 AM Jan Beulich wrote: >> >> >>> On 16.05.19 at 02:02, wrote: >> > Make the asm/vpl011.h dependent on the ARM architecture. >> >> But we only have x86 and Arm right now. A word more about >> your motivation would help. > > As the co

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 18:21, wrote: > Sorry, but I think it may be best to wait. I'm open to being > persuaded... Okay - as also indicated on irc, with the weekend in between and with the most recent flight having failed anyway it shouldn't be too much of an extra delay. Yet to be honest - most or

Re: [Xen-devel] [PATCH RFC V2 42/45] xen/sched: add fall back to idle vcpu when scheduling item

2019-05-16 Thread Juergen Gross
On 16/05/2019 16:41, Jan Beulich wrote: On 16.05.19 at 15:51, wrote: >> On 16/05/2019 15:05, Jan Beulich wrote: >> On 06.05.19 at 08:56, wrote: --- a/xen/arch/x86/domain.c +++ b/xen/arch/x86/domain.c @@ -154,6 +154,24 @@ static void idle_loop(void) } }

Re: [Xen-devel] [PATCH 1/3] config.sub: Update config.sub to latest version

2019-05-16 Thread Alistair Francis
On Thu, May 16, 2019 at 3:31 AM Jan Beulich wrote: > > >>> On 16.05.19 at 02:02, wrote: > > Signed-off-by: Alistair Francis > > At least to me it is far from obvious why we would want/need to > do this update, or where the canonical "latest version" lives and > hence where this is coming from. A

Re: [Xen-devel] [PATCH 2/3] xen/drivers/char: Don't require vpl011 for all non-x86 archs

2019-05-16 Thread Alistair Francis
On Thu, May 16, 2019 at 3:32 AM Jan Beulich wrote: > > >>> On 16.05.19 at 02:02, wrote: > > Make the asm/vpl011.h dependent on the ARM architecture. > > But we only have x86 and Arm right now. A word more about > your motivation would help. As the code currently is no one can add another archite

Re: [Xen-devel] [PATCH 1/3] config.sub: Update config.sub to latest version

2019-05-16 Thread Alistair Francis
On Thu, May 16, 2019 at 6:30 AM Wei Liu wrote: > > On Thu, May 16, 2019 at 03:18:19PM +0200, Olaf Hering wrote: > > Am Thu, 16 May 2019 12:39:02 +0100 > > schrieb Wei Liu : > > > > > autotools shipped in all the distros we care about > > > > I see autoconf 2.69 is available practically everywhere,

[Xen-devel] [linux-linus bisection] complete test-amd64-amd64-xl-credit1

2019-05-16 Thread osstest service owner
branch xen-unstable xenbranch xen-unstable job test-amd64-amd64-xl-credit1 testid guest-saverestore Tree: linux git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git Tree: ovmf git://xenbits.xen.org/osstest/ovmf.gi

[Xen-devel] [xen-4.8-testing test] 136248: regressions - FAIL

2019-05-16 Thread osstest service owner
flight 136248 xen-4.8-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136248/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-xtf-amd64-amd64-4 50 xtf/test-hvm64-lbr-tsx-vmentry fail REGR. vs. 130965 build-amd64-pre

[Xen-devel] [xen-4.12-testing test] 136233: tolerable FAIL - PUSHED

2019-05-16 Thread osstest service owner
flight 136233 xen-4.12-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136233/ Failures :-/ but no regressions. Tests which did not succeed, but are not blocking: test-amd64-amd64-xl-qcow217 guest-localmigrate/x10 fail like 135805 test-amd64-amd64-libvirt 13

Re: [Xen-devel] struct vcpu_guest_core_reg stable ABI?

2019-05-16 Thread Julien Grall
Hi Andrew & Jan, On 5/16/19 8:58 AM, Jan Beulich wrote: On 15.05.19 at 22:12, wrote: On 15/05/2019 20:58, Julien Grall wrote: Hi all, It looks like the structures vcpu_guest_core_regs and vcpu_guest_context does not correctly reflect the AArch64 state. For instance, all Arm64 system register

[Xen-devel] [PATCH v5 4/4] x86/mem_sharing: compile mem_sharing subsystem only when kconfig is enabled

2019-05-16 Thread Tamas K Lengyel
Disable it by default as it is only an experimental subsystem. Signed-off-by: Tamas K Lengyel Cc: Jan Beulich Cc: Andrew Cooper Cc: Wei Liu Cc: Roger Pau Monne Cc: George Dunlap Cc: Ian Jackson Cc: Julien Grall Cc: Konrad Rzeszutek Wilk Cc: Stefano Stabellini Cc: Tim Deegan Cc: George D

Re: [Xen-devel] [qemu-upstream-4.11-testing test] 136184: regressions - FAIL

2019-05-16 Thread Julien Grall
Hi Anthony, Thank you for CCing me. On 5/16/19 11:37 AM, Anthony PERARD wrote: On Wed, May 15, 2019 at 07:48:17PM +, osstest service owner wrote: flight 136184 qemu-upstream-4.11-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136184/ Regressions :-( Tests which did

[Xen-devel] [PATCH v5 3/4] x86/mem_sharing: enable mem_share audit mode only in debug builds

2019-05-16 Thread Tamas K Lengyel
Improves performance for release builds. Signed-off-by: Tamas K Lengyel Cc: Jan Beulich Cc: Andrew Cooper Cc: Wei Liu Cc: Roger Pau Monne --- xen/include/asm-x86/mem_sharing.h | 4 1 file changed, 4 insertions(+) diff --git a/xen/include/asm-x86/mem_sharing.h b/xen/include/asm-x86/mem

[Xen-devel] [PATCH v5 2/4] x86/mem_sharing: copy a page_lock version to be internal to memshr

2019-05-16 Thread Tamas K Lengyel
Patch cf4b30dca0a "Add debug code to detect illegal page_lock and put_page_type ordering" added extra sanity checking to page_lock/page_unlock for debug builds with the assumption that no hypervisor path ever locks two pages at once. This assumption doesn't hold during memory sharing so we copy a

[Xen-devel] [PATCH v5 1/4] x86/mem_sharing: reorder when pages are unlocked and released

2019-05-16 Thread Tamas K Lengyel
Calling _put_page_type while also holding the page_lock for that page can cause a deadlock. The comment being dropped is incorrect since it's now out-of-date. Signed-off-by: Tamas K Lengyel Cc: Jan Beulich Cc: Andrew Cooper Cc: George Dunlap Cc: Wei Liu Cc: Roger Pau Monne --- This series i

[Xen-devel] [xen-4.6-testing test] 136246: regressions - FAIL

2019-05-16 Thread osstest service owner
flight 136246 xen-4.6-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136246/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: build-amd64-xsm 6 xen-buildfail REGR. vs. 127792 build-amd64

[Xen-devel] [xen-unstable-smoke test] 136387: tolerable all pass - PUSHED

2019-05-16 Thread osstest service owner
flight 136387 xen-unstable-smoke real [real] http://logs.test-lab.xenproject.org/osstest/logs/136387/ Failures :-/ but no regressions. Tests which did not succeed, but are not blocking: test-amd64-amd64-libvirt 13 migrate-support-checkfail never pass test-arm64-arm64-xl-xsm 1

[Xen-devel] [xen-4.10-testing test] 136232: regressions - FAIL

2019-05-16 Thread osstest service owner
flight 136232 xen-4.10-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136232/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-i386-xl-qemuu-debianhvm-amd64 15 guest-saverestore.2 fail REGR. vs. 135813 Tests

[Xen-devel] [linux-3.18 test] 136220: regressions - FAIL

2019-05-16 Thread osstest service owner
flight 136220 linux-3.18 real [real] http://logs.test-lab.xenproject.org/osstest/logs/136220/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-amd64-amd64-pvgrub 7 xen-bootfail REGR. vs. 128858 test-amd64-i386-exam

[Xen-devel] [xen-4.11-testing test] 136231: regressions - FAIL

2019-05-16 Thread osstest service owner
flight 136231 xen-4.11-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/136231/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-amd64-libvirt-pair 26 leak-check/check/src_host fail REGR. vs. 135683 test-armhf-

Re: [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID

2019-05-16 Thread Alexander Graf
On 16.05.19 10:41, Sironi, Filippo wrote: >> On 16. May 2019, at 18:40, Boris Ostrovsky >> wrote: >> >> On 5/16/19 11:33 AM, Alexander Graf wrote: >>> On 16.05.19 08:25, Sironi, Filippo wrote: > On 16. May 2019, at 15:56, Graf, Alexander wrote: > > On 14.05.19 08:16, Filippo Sironi

Re: [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID

2019-05-16 Thread Sironi, Filippo
> On 16. May 2019, at 18:40, Boris Ostrovsky wrote: > > On 5/16/19 11:33 AM, Alexander Graf wrote: >> On 16.05.19 08:25, Sironi, Filippo wrote: On 16. May 2019, at 15:56, Graf, Alexander wrote: On 14.05.19 08:16, Filippo Sironi wrote: > On x86, we report the UUID in DMI Syst

Re: [Xen-devel] [PATCH v2] coverage: filter out libfdt.o and libelf.o

2019-05-16 Thread Julien Grall
Hi Viktor, Thank you for the quick respin. I have some comments below regarding the commit message and process. On 16/05/2019 14:20, Viktor Mitin wrote: The patch resolves 'xencov' crashes in case of Aarch64. All the .init.* sections are stripped after boot, it means that anything in .init.d

Re: [Xen-devel] [PATCH V5 0/4] Renesas Stout board support (R-Car Gen2)

2019-05-16 Thread Oleksandr
On 16.05.19 18:44, Julien Grall wrote: Hi, Hi, Julien That's correct. If I don't hear anything by Monday, I will merge the two patches. I haven't heard anything from Stefano. I have now merged the two remaining patches. Great, thank you! Now, I hope we can say that Renesas Stout boar

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Andrew Cooper
On 16/05/2019 17:17, Ian Jackson wrote: > Andrew Cooper writes ("Re: [Xen-devel] preparations for 4.11.2"): >> In addition, > Thanks. > > wanting discussion: > >> 365aabb6e502 "tools/libxendevicemodel: add >> xendevicemodel_modified_memory_bulk to map" is possibly a candidate, but >> is a

Re: [Xen-devel] [PATCH v2 0/10] iomem memory policy

2019-05-16 Thread Oleksandr
On 01.05.19 00:02, Stefano Stabellini wrote: Hi all, Hi, Stefano This series introduces a memory policy parameter for the iomem option, so that we can map an iomem region into a guest as cacheable memory. Then, this series fixes the way Xen handles reserved memory regions on ARM: they sho

Re: [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID

2019-05-16 Thread Boris Ostrovsky
On 5/16/19 11:33 AM, Alexander Graf wrote: > On 16.05.19 08:25, Sironi, Filippo wrote: >>> On 16. May 2019, at 15:56, Graf, Alexander wrote: >>> >>> On 14.05.19 08:16, Filippo Sironi wrote: On x86, we report the UUID in DMI System Information (i.e., DMI Type 1) as VM UUID. Sign

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Ian Jackson
Jan Beulich writes ("Re: [Xen-devel] preparations for 4.11.2"): > Unless these are really urgent to put in, I'd like them to be deferred > to 4.11.3. With XSA-297 out we've already started the (leaf tree) > tagging process, so I was really hoping to get this much delayed > release out rather sooner

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Ian Jackson
Andrew Cooper writes ("Re: [Xen-devel] preparations for 4.11.2"): > In addition, Thanks. wanting discussion: > 365aabb6e502 "tools/libxendevicemodel: add > xendevicemodel_modified_memory_bulk to map" is possibly a candidate, but > is also complicated by the stable SONAME.  It is perhap

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Ian Jackson
Andrew Cooper writes ("Re: [Xen-devel] preparations for 4.11.2"): > Oh, and 677e64dbe315343620c3b266e9eb16623b118038 "tools/ocaml: Dup2 > /dev/null to stdin in daemonize()" again for 4.12 and earlier. This is already in 4.12. It's quite alarming so I decided to backport it all the way to 4.7 (las

Re: [Xen-devel] [PATCH v4] xen: fix handling framebuffer located above 4GB

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 17:46, wrote: > On some machines (for example Thinkpad P52), UEFI GOP reports > framebuffer located above 4GB (0x40 on that machine). This > address does not fit in {xen,dom0}_vga_console_info.u.vesa_lfb.lfb_base > field, which is 32bit. The overflow here cause all kind

[Xen-devel] [xen-unstable-smoke test] 136374: tolerable all pass - PUSHED

2019-05-16 Thread osstest service owner
flight 136374 xen-unstable-smoke real [real] http://logs.test-lab.xenproject.org/osstest/logs/136374/ Failures :-/ but no regressions. Tests which did not succeed, but are not blocking: test-amd64-amd64-libvirt 13 migrate-support-checkfail never pass test-arm64-arm64-xl-xsm 1

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Ian Jackson
Andrew Cooper writes ("Re: [Xen-devel] preparations for 4.11.2"): > ffb60a58df48419c1f2607cd3cc919fa2bfc9c2d "tools/misc/xenpm: fix getting > info when some CPUs are offline" for 4.11 and earlier. Thanks, queued for 4.11 and 4.10. Ian. ___ Xen-devel ma

Re: [Xen-devel] [PATCH] Add TRACKING.IMPORTS to xen.git to more easily manage imported files that need to be kept in sync with an upstream

2019-05-16 Thread Lars Kurth
On 16/05/2019, 04:47, "Jan Beulich" wrote: >>> On 16.05.19 at 00:18, wrote: > +# Mappings to track files are of the following format > +# --- > +# manual|auto xen-file name-of-original-repo original-file commit-id > +# >

Re: [Xen-devel] [PATCH] xen:arm: we never get into schedule_tail() with prev==current

2019-05-16 Thread Julien Grall
Hi, On 08/05/2019 12:25, Dario Faggioli wrote: On Wed, 2019-05-08 at 12:59 +0300, Andrii Anisov wrote: From: Andrii Anisov ARM's schedule_tail() is called from two places: context_switch() and continue_new_vcpu(). Both functions are always called with prev!=current. So replace the corresponde

[Xen-devel] [PATCH v4] xen: fix handling framebuffer located above 4GB

2019-05-16 Thread Marek Marczykowski-Górecki
On some machines (for example Thinkpad P52), UEFI GOP reports framebuffer located above 4GB (0x40 on that machine). This address does not fit in {xen,dom0}_vga_console_info.u.vesa_lfb.lfb_base field, which is 32bit. The overflow here cause all kind of memory corruption when anything tries t

Re: [Xen-devel] [PATCH v3 1/1] xen: fix handling framebuffer located above 4GB

2019-05-16 Thread Marek Marczykowski
On Thu, May 16, 2019 at 08:59:36AM -0600, Jan Beulich wrote: > >>> On 16.05.19 at 16:07, wrote: > > --- a/xen/drivers/video/vesa.c > > +++ b/xen/drivers/video/vesa.c > > @@ -40,6 +40,11 @@ static int __init parse_font_height(const char *s) > > } > > custom_param("font", parse_font_height); > >

Re: [Xen-devel] [PATCH V5 0/4] Renesas Stout board support (R-Car Gen2)

2019-05-16 Thread Julien Grall
Hi, On 08/05/2019 17:34, Julien Grall wrote: On 08/05/2019 17:30, Oleksandr wrote: On 08.05.19 19:19, Julien Grall wrote: Hi Oleksandr, Hi Julien On 02/05/2019 18:00, Oleksandr Tyshchenko wrote: Oleksandr Tyshchenko (4):    xen/arm: drivers: scif: Extend driver to handle other interf

Re: [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID

2019-05-16 Thread Alexander Graf
On 16.05.19 08:25, Sironi, Filippo wrote: >> On 16. May 2019, at 15:56, Graf, Alexander wrote: >> >> On 14.05.19 08:16, Filippo Sironi wrote: >>> On x86, we report the UUID in DMI System Information (i.e., DMI Type 1) >>> as VM UUID. >>> >>> Signed-off-by: Filippo Sironi >>> --- >>> arch/x86/ker

Re: [Xen-devel] [qemu-upstream-4.12-testing test] 136177: regressions - FAIL

2019-05-16 Thread Ian Jackson
Anthony PERARD writes ("Re: [Xen-devel] [qemu-upstream-4.12-testing test] 136177: regressions - FAIL"): > On Wed, May 15, 2019 at 04:28:35PM +, osstest service owner wrote: > > flight 136177 qemu-upstream-4.12-testing real [real] > > http://logs.test-lab.xenproject.org/osstest/logs/136177/ > >

Re: [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID

2019-05-16 Thread Sironi, Filippo
> On 16. May 2019, at 15:56, Graf, Alexander wrote: > > On 14.05.19 08:16, Filippo Sironi wrote: >> On x86, we report the UUID in DMI System Information (i.e., DMI Type 1) >> as VM UUID. >> >> Signed-off-by: Filippo Sironi >> --- >> arch/x86/kernel/kvm.c | 7 +++ >> 1 file changed, 7 insert

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 17:23, wrote: > On 16/05/2019 16:20, Jan Beulich wrote: > On 16.05.19 at 17:11, wrote: >>> On 26/04/2019 13:02, Andrew Cooper wrote: On 26/04/2019 12:59, Andrew Cooper wrote: > On 18/03/2019 16:13, Jan Beulich wrote: >> All, >> >> the release is due by

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Andrew Cooper
On 16/05/2019 16:20, Jan Beulich wrote: On 16.05.19 at 17:11, wrote: >> On 26/04/2019 13:02, Andrew Cooper wrote: >>> On 26/04/2019 12:59, Andrew Cooper wrote: On 18/03/2019 16:13, Jan Beulich wrote: > All, > > the release is due by the end of the month, but will likely don't

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 17:11, wrote: > On 26/04/2019 13:02, Andrew Cooper wrote: >> On 26/04/2019 12:59, Andrew Cooper wrote: >>> On 18/03/2019 16:13, Jan Beulich wrote: All, the release is due by the end of the month, but will likely don't make it before early April. Please point

Re: [Xen-devel] [PATCH v2 1/2] KVM: Start populating /sys/hypervisor with KVM entries

2019-05-16 Thread Sironi, Filippo
> On 16. May 2019, at 17:02, Boris Ostrovsky wrote: > > On 5/16/19 10:08 AM, Alexander Graf wrote: >> >> My point is mostly that we should be as common >> as possible when it comes to /sys/hypervisor, so that tools don't have >> to care about the HV they're working against. > > It might make s

Re: [Xen-devel] [PATCH v2 1/2] makefile: add support for *_defconfig targets

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 15:37, wrote: > Ease up XEN configuration for non-standard builds, like > armv8 tiny config. > > Signed-off-by: Volodymyr Babchuk Acked-by: Jan Beulich ___ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenp

Re: [Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Olaf Hering
Am Thu, 16 May 2019 16:03:55 +0100 schrieb Wei Liu : > Does this make sense? Sure, I was looking at the wrong function. Doing it within libxl_domain_need_memory will certainly work. Thanks! Olaf pgpJFwebL9FWO.pgp Description: Digitale Signatur von OpenPGP __

Re: [Xen-devel] [PATCH v2 1/2] KVM: Start populating /sys/hypervisor with KVM entries

2019-05-16 Thread Boris Ostrovsky
On 5/16/19 10:08 AM, Alexander Graf wrote: > > My point is mostly that we should be as common > as possible when it comes to /sys/hypervisor, so that tools don't have > to care about the HV they're working against. It might make sense to have a common sys-hypervisor.c file (drivers/hypervisor/sys-

Re: [Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 03:54:55PM +0200, Olaf Hering wrote: > Am Thu, 16 May 2019 14:46:53 +0100 > schrieb Wei Liu : > > > Can you clarify? > > create_domain has a libxl_domain_config on its stack. This is passed to > freemem, and libxl_domain_need_memory modifies it as needed. > The modificatio

Re: [Xen-devel] preparations for 4.11.2

2019-05-16 Thread Andrew Cooper
On 26/04/2019 13:02, Andrew Cooper wrote: > On 26/04/2019 12:59, Andrew Cooper wrote: >> On 18/03/2019 16:13, Jan Beulich wrote: >>> All, >>> >>> the release is due by the end of the month, but will likely don't make >>> it before early April. Please point out backports you find missing from >>> th

Re: [Xen-devel] [PATCH v3 1/1] xen: fix handling framebuffer located above 4GB

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 16:07, wrote: > --- a/xen/drivers/video/vesa.c > +++ b/xen/drivers/video/vesa.c > @@ -40,6 +40,11 @@ static int __init parse_font_height(const char *s) > } > custom_param("font", parse_font_height); > > +static inline paddr_t lfb_base(void) > +{ > +return (paddr_t)((vlfb

Re: [Xen-devel] [PATCH 4/4] x86/IRQ: ACKTYPE_NONE cannot make it into irq_guest_eoi_timer_fn()

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 15:52, wrote: > On Wed, May 08, 2019 at 06:48:16AM -0600, Jan Beulich wrote: >> action->ack_type is set once before the timer even gets initialized, and >> is never changed later. The timer gets activated only for EOI and UNMASK >> types. Hence there's no need to have a respecti

Re: [Xen-devel] [PATCH RFC V2 42/45] xen/sched: add fall back to idle vcpu when scheduling item

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 15:51, wrote: > On 16/05/2019 15:05, Jan Beulich wrote: > On 06.05.19 at 08:56, wrote: >>> --- a/xen/arch/x86/domain.c >>> +++ b/xen/arch/x86/domain.c >>> @@ -154,6 +154,24 @@ static void idle_loop(void) >>> } >>> } >>> >>> +/* >>> + * Idle loop for siblings of acti

Re: [Xen-devel] [PATCH v2 2/2] xen: implement VCPUOP_register_runstate_phys_memory_area

2019-05-16 Thread Andrii Anisov
On 16.05.19 17:28, Julien Grall wrote: Well, if you fail the check then it means someone was modifying it behind your back. That someone could update the runstate with the new information once it is modified. So I can't see issue with not updating the runstate in the context switch. That's

Re: [Xen-devel] [PATCH v2 2/2] xen: implement VCPUOP_register_runstate_phys_memory_area

2019-05-16 Thread Julien Grall
Hi Andrii, On 16/05/2019 15:25, Andrii Anisov wrote: Hello Julien, On 16.05.19 16:48, Julien Grall wrote: The lock can be completely removed anyway. See my previous comments. You suggested kinda simplified try_lock with runstate update skipping in case of fail. The question here is if we a

Re: [Xen-devel] [PATCH v2 2/2] xen: implement VCPUOP_register_runstate_phys_memory_area

2019-05-16 Thread Andrii Anisov
Hello Julien, On 16.05.19 16:48, Julien Grall wrote: The lock can be completely removed anyway. See my previous comments. You suggested kinda simplified try_lock with runstate update skipping in case of fail. The question here is if we are OK with not updating runstate under circumstances? T

Re: [Xen-devel] [PATCH v2 1/2] KVM: Start populating /sys/hypervisor with KVM entries

2019-05-16 Thread Alexander Graf
On 16.05.19 07:02, Andrew Cooper wrote: > On 16/05/2019 14:50, Alexander Graf wrote: >> On 14.05.19 08:16, Filippo Sironi wrote: >>> Start populating /sys/hypervisor with KVM entries when we're running on >>> KVM. This is to replicate functionality that's available when we're >>> running on Xen. >

[Xen-devel] [PATCH v3 1/1] xen: fix handling framebuffer located above 4GB

2019-05-16 Thread Marek Marczykowski-Górecki
On some machines (for example Thinkpad P52), UEFI GOP reports framebuffer located above 4GB (0x40 on that machine). This address does not fit in {xen,dom0}_vga_console_info.u.vesa_lfb.lfb_base field, which is 32bit. The overflow here cause all kind of memory corruption when anything tries t

[Xen-devel] [PATCH v3 0/1] Fixes for large framebuffer, placed above 4GB

2019-05-16 Thread Marek Marczykowski-Górecki
A bunch of fixes for booting Xen on Thinkpad P52, through grub2-efi + multiboot2. Most of them can be applied independently. Changes in v3: - updated "xen: fix handling framebuffer located above 4GB" - dropped already applied patches --- cc: Andrew Cooper cc: George Dunlap cc: Ian Jackson cc

Re: [Xen-devel] [PATCH v2 1/2] KVM: Start populating /sys/hypervisor with KVM entries

2019-05-16 Thread Andrew Cooper
On 16/05/2019 14:50, Alexander Graf wrote: > On 14.05.19 08:16, Filippo Sironi wrote: >> Start populating /sys/hypervisor with KVM entries when we're running on >> KVM. This is to replicate functionality that's available when we're >> running on Xen. >> >> Start with /sys/hypervisor/uuid, which use

Re: [Xen-devel] [PATCH] xen/arm: Black list everything with a PPI

2019-05-16 Thread Julien Grall
On 16/05/2019 14:17, Andre Przywara wrote: On Thu, 16 May 2019 17:15:36 +0530 Amit Tomer wrote: On Thu, May 16, 2019 at 12:25 AM Oleksandr wrote: On 03.05.19 20:02, Amit Singh Tomar wrote: Suggested-by: Julien Grall Signed-off-by: Amit Singh Tomar --- * This replaces following pat

Re: [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID

2019-05-16 Thread Alexander Graf
On 14.05.19 08:16, Filippo Sironi wrote: > On x86, we report the UUID in DMI System Information (i.e., DMI Type 1) > as VM UUID. > > Signed-off-by: Filippo Sironi > --- > arch/x86/kernel/kvm.c | 7 +++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kerne

Re: [Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Olaf Hering
Am Thu, 16 May 2019 14:46:53 +0100 schrieb Wei Liu : > Can you clarify? create_domain has a libxl_domain_config on its stack. This is passed to freemem, and libxl_domain_need_memory modifies it as needed. The modification will go through libxl_domain_create_new, do_domain_create, initiate_domain_

Re: [Xen-devel] [PATCH 4/4] x86/IRQ: ACKTYPE_NONE cannot make it into irq_guest_eoi_timer_fn()

2019-05-16 Thread Roger Pau Monné
On Wed, May 08, 2019 at 06:48:16AM -0600, Jan Beulich wrote: > action->ack_type is set once before the timer even gets initialized, and > is never changed later. The timer gets activated only for EOI and UNMASK > types. Hence there's no need to have a respective if() in there. Replace > it by an AS

Re: [Xen-devel] [PATCH v2 1/2] KVM: Start populating /sys/hypervisor with KVM entries

2019-05-16 Thread Alexander Graf
On 14.05.19 08:16, Filippo Sironi wrote: > Start populating /sys/hypervisor with KVM entries when we're running on > KVM. This is to replicate functionality that's available when we're > running on Xen. > > Start with /sys/hypervisor/uuid, which users prefer over > /sys/devices/virtual/dmi/id/prod

Re: [Xen-devel] [PATCH RFC V2 42/45] xen/sched: add fall back to idle vcpu when scheduling item

2019-05-16 Thread Juergen Gross
On 16/05/2019 15:05, Jan Beulich wrote: On 06.05.19 at 08:56, wrote: >> --- a/xen/arch/x86/domain.c >> +++ b/xen/arch/x86/domain.c >> @@ -154,6 +154,24 @@ static void idle_loop(void) >> } >> } >> >> +/* >> + * Idle loop for siblings of active schedule items. >> + * We don't do any sta

Re: [Xen-devel] [PATCH 3/4] x86/IRQ: relax locking in irq_guest_eoi_timer_fn()

2019-05-16 Thread Roger Pau Monné
On Wed, May 08, 2019 at 06:47:34AM -0600, Jan Beulich wrote: > This is a timer handler, so it gets entered with IRQs enabled. Therefore > there's no need to save/restore the IRQ masking flag. > > Additionally the final switch()'es ACKTYPE_EOI case re-acquires the lock > just for it to be dropped a

Re: [Xen-devel] [PATCH v2 2/2] xen: implement VCPUOP_register_runstate_phys_memory_area

2019-05-16 Thread Julien Grall
On 16/05/2019 14:30, Andrii Anisov wrote: Hello Jan, On 16.05.19 15:09, Jan Beulich wrote: On 23.04.19 at 10:10, wrote: --- a/xen/include/xen/sched.h +++ b/xen/include/xen/sched.h @@ -163,15 +163,23 @@ struct vcpu   void    *sched_priv;    /* scheduler-specific data */   str

Re: [Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 03:36:01PM +0200, Olaf Hering wrote: > Am Thu, 16 May 2019 14:30:13 +0100 > schrieb Wei Liu : > > > Would the following work? > > This is not exactly the same because that copy will end up in > libxl__domain_set_device_model, and we are back to square #1. I'm not sure I f

Re: [Xen-devel] [PATCH 2/4] x86/IRQ: bail early from irq_guest_eoi_timer_fn() when nothing is in flight

2019-05-16 Thread Roger Pau Monné
On Thu, May 16, 2019 at 06:02:15AM -0600, Jan Beulich wrote: > >>> On 16.05.19 at 13:37, wrote: > > On Wed, May 08, 2019 at 06:46:51AM -0600, Jan Beulich wrote: > >> There's no point entering the loop in the function in this case. Instead > >> there still being something in flight _after_ the loop

Re: [Xen-devel] [PATCH] libxc: elf_kernel loader: Remove check for shstrtab

2019-05-16 Thread Andrew Cooper
On 16/05/2019 14:23, Wei Liu wrote: > On Wed, May 15, 2019 at 01:55:30PM +0100, Anthony PERARD wrote: >> On Wed, May 15, 2019 at 01:07:03PM +0100, Andrew Cooper wrote: >>> On 15/05/2019 12:40, Anthony PERARD wrote: This was probably useful to load ELF Note, but now ELF notes "should live

[Xen-devel] [PATCH v2 2/2] arm: rename tiny64.conf to tiny64_defconfig

2019-05-16 Thread Volodymyr Babchuk
As build system now supports *_defconfig rules it is good to be able to configure minimal XEN image with make tiny64_defconfig command. Signed-off-by: Volodymyr Babchuk --- xen/arch/arm/configs/{tiny64.conf => tiny64_defconfig} | 0 1 file changed, 0 insertions(+), 0 deletions(-) rename xen/

[Xen-devel] [PATCH v2 1/2] makefile: add support for *_defconfig targets

2019-05-16 Thread Volodymyr Babchuk
Ease up XEN configuration for non-standard builds, like armv8 tiny config. Signed-off-by: Volodymyr Babchuk --- Changes from v2: - remove %_defconfig rule in favor of list of real *_defconfig files Makefile | 4 xen/Makefile | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) di

Re: [Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Olaf Hering
Am Thu, 16 May 2019 14:30:13 +0100 schrieb Wei Liu : > Would the following work? This is not exactly the same because that copy will end up in libxl__domain_set_device_model, and we are back to square #1. Olaf pgpcjNNwubdpG.pgp Description: Digitale Signatur von OpenPGP ___

Re: [Xen-devel] [PATCH v2 2/2] xen: implement VCPUOP_register_runstate_phys_memory_area

2019-05-16 Thread Andrii Anisov
Hello Jan, On 16.05.19 15:09, Jan Beulich wrote: On 23.04.19 at 10:10, wrote: --- a/xen/include/xen/sched.h +++ b/xen/include/xen/sched.h @@ -163,15 +163,23 @@ struct vcpu void*sched_priv;/* scheduler-specific data */ struct vcpu_runstate_info runstate; + +s

Re: [Xen-devel] [PATCH 1/3] config.sub: Update config.sub to latest version

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 03:18:19PM +0200, Olaf Hering wrote: > Am Thu, 16 May 2019 12:39:02 +0100 > schrieb Wei Liu : > > > autotools shipped in all the distros we care about > > I see autoconf 2.69 is available practically everywhere, starting > with openSUSE 12.2, which was released in Q3 2012

Re: [Xen-devel] [PATCH v2 2/2] xen: implement VCPUOP_register_runstate_phys_memory_area

2019-05-16 Thread Andrii Anisov
Hello Jan, On 16.05.19 15:09, Jan Beulich wrote: On 23.04.19 at 10:10, wrote: --- a/xen/include/xen/sched.h +++ b/xen/include/xen/sched.h @@ -163,15 +163,23 @@ struct vcpu void*sched_priv;/* scheduler-specific data */ struct vcpu_runstate_info runstate; + +s

Re: [Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 02:50:00PM +0200, Olaf Hering wrote: > In commit 3802ecbaa9 ("libxl: add helper function to set > device_model_version") an assert was added to > libxl__domain_build_info_setdefault to make sure callers provide > complete info to this function. This unveiled a flaw in the wa

Re: [Xen-devel] [PATCH] libxc: elf_kernel loader: Remove check for shstrtab

2019-05-16 Thread Wei Liu
On Wed, May 15, 2019 at 01:55:30PM +0100, Anthony PERARD wrote: > On Wed, May 15, 2019 at 01:07:03PM +0100, Andrew Cooper wrote: > > On 15/05/2019 12:40, Anthony PERARD wrote: > > > This was probably useful to load ELF Note, but now ELF notes > > > "should live in a PT_NOTE segment" (elfnote.h). >

[Xen-devel] [PATCH v2] coverage: filter out libfdt.o and libelf.o

2019-05-16 Thread Viktor Mitin
The patch resolves 'xencov' crashes in case of Aarch64. All the .init.* sections are stripped after boot, it means that anything in .init.data cannot be accessed anymore. The build system explicitly compiles any .init binary without gcov option. The problem is coming from libfdt and libelf. The en

Re: [Xen-devel] [PATCH 1/3] config.sub: Update config.sub to latest version

2019-05-16 Thread Olaf Hering
Am Thu, 16 May 2019 12:39:02 +0100 schrieb Wei Liu : > autotools shipped in all the distros we care about I see autoconf 2.69 is available practically everywhere, starting with openSUSE 12.2, which was released in Q3 2012. SLE11, which can not be properly supported anymore, had autoconf 2.63. O

Re: [Xen-devel] [PATCH] xen/arm: Black list everything with a PPI

2019-05-16 Thread Andre Przywara
On Thu, 16 May 2019 17:15:36 +0530 Amit Tomer wrote: Hi, > Thanks for having a look at it. > > On Thu, May 16, 2019 at 12:25 AM Oleksandr wrote: > > > > > > On 03.05.19 20:02, Amit Singh Tomar wrote: > > > > Hi, Amit > > > > > XEN should not forward PPIs to Dom0 as it only support SPIs. > >

Re: [Xen-devel] [PATCH RFC V2 37/45] x86: optimize loading of GDT at context switch

2019-05-16 Thread Juergen Gross
On 16/05/2019 14:42, Jan Beulich wrote: On 06.05.19 at 08:56, wrote: >> Instead of dynamically decide whether the previous vcpu was using full >> or default GDT just add a percpu variable for that purpose. This at >> once removes the need for testing vcpu_ids to differ twice. >> >> Cache the

Re: [Xen-devel] [PATCH RFC V2 24/45] xen: let vcpu_create() select processor

2019-05-16 Thread Jan Beulich
>>> On 16.05.19 at 14:46, wrote: > On 16/05/2019 14:20, Jan Beulich wrote: > On 06.05.19 at 08:56, wrote: >>> --- a/xen/common/schedule.c >>> +++ b/xen/common/schedule.c >>> @@ -314,14 +314,42 @@ static struct sched_item *sched_alloc_item(struct >>> vcpu *v) >>> return NULL; >>> } >>>

Re: [Xen-devel] [PATCH RFC V2 42/45] xen/sched: add fall back to idle vcpu when scheduling item

2019-05-16 Thread Jan Beulich
>>> On 06.05.19 at 08:56, wrote: > --- a/xen/arch/x86/domain.c > +++ b/xen/arch/x86/domain.c > @@ -154,6 +154,24 @@ static void idle_loop(void) > } > } > > +/* > + * Idle loop for siblings of active schedule items. > + * We don't do any standard idle work like tasklets, page scrubbing or >

Re: [Xen-devel] [PATCH RFC V2 36/45] x86: make loading of GDT at context switch more modular

2019-05-16 Thread Juergen Gross
On 16/05/2019 14:30, Jan Beulich wrote: On 06.05.19 at 08:56, wrote: >> --- a/xen/arch/x86/domain.c >> +++ b/xen/arch/x86/domain.c >> @@ -1619,6 +1619,37 @@ static inline bool need_full_gdt(const struct domain >> *d) >> return is_pv_domain(d) && !is_idle_domain(d); >> } >> >> +static

[Xen-devel] [PATCH v1] libxl: fix device_model_version related assert

2019-05-16 Thread Olaf Hering
In commit 3802ecbaa9 ("libxl: add helper function to set device_model_version") an assert was added to libxl__domain_build_info_setdefault to make sure callers provide complete info to this function. This unveiled a flaw in the way how libxl_domain_build_info is passed to libxl. The public API libx

Re: [Xen-devel] Regression in xen-unstable due to commit 3802ecbaa9eb36

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 02:18:05PM +0200, Olaf Hering wrote: > Am Thu, 16 May 2019 14:04:51 +0200 > schrieb Olaf Hering : > > > There are quite a few checks for device_model_version, they would be all > > wrong if the assert is removed, or changed back to QEMU_XEN. Perhaps we > > can continue to l

Re: [Xen-devel] [PATCH 1/3] config.sub: Update config.sub to latest version

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 01:44:32PM +0200, Olaf Hering wrote: > Am Thu, 16 May 2019 12:39:02 +0100 > schrieb Wei Liu : > > > I guess all I can say at this point is that I haven't done a survey on > > the differences of the autotools shipped in all the distros we care > > about (especially the older

Re: [Xen-devel] [PATCH RFC V2 24/45] xen: let vcpu_create() select processor

2019-05-16 Thread Juergen Gross
On 16/05/2019 14:20, Jan Beulich wrote: On 06.05.19 at 08:56, wrote: >> --- a/xen/common/schedule.c >> +++ b/xen/common/schedule.c >> @@ -314,14 +314,42 @@ static struct sched_item *sched_alloc_item(struct vcpu >> *v) >> return NULL; >> } >> >> -int sched_init_vcpu(struct vcpu *v, un

Re: [Xen-devel] Regression in xen-unstable due to commit 3802ecbaa9eb36

2019-05-16 Thread Wei Liu
On Thu, May 16, 2019 at 01:42:55PM +0200, Roger Pau Monné wrote: > On Thu, May 16, 2019 at 12:24:50PM +0100, Wei Liu wrote: > > On Thu, May 16, 2019 at 12:57:35PM +0200, Olaf Hering wrote: > > > Am Thu, 16 May 2019 12:45:40 +0200 > > > schrieb Roger Pau Monné : > > > > > > > Having a field in buil

Re: [Xen-devel] [PATCH RFC V2 37/45] x86: optimize loading of GDT at context switch

2019-05-16 Thread Jan Beulich
>>> On 06.05.19 at 08:56, wrote: > Instead of dynamically decide whether the previous vcpu was using full > or default GDT just add a percpu variable for that purpose. This at > once removes the need for testing vcpu_ids to differ twice. > > Cache the need_full_gdt(nd) value in a local variable.

Re: [Xen-devel] [PATCH RFC V2 36/45] x86: make loading of GDT at context switch more modular

2019-05-16 Thread Jan Beulich
>>> On 06.05.19 at 08:56, wrote: > --- a/xen/arch/x86/domain.c > +++ b/xen/arch/x86/domain.c > @@ -1619,6 +1619,37 @@ static inline bool need_full_gdt(const struct domain > *d) > return is_pv_domain(d) && !is_idle_domain(d); > } > > +static inline void write_full_gdt_ptes(seg_desc_t *gdt,

Re: [Xen-devel] Question about MDS mitigation

2019-05-16 Thread Andrew Cooper
On 16/05/2019 12:48, wencongyang (A) wrote: > > On 2019/5/16 15:58, Andrew Cooper wrote: >> On 16/05/2019 08:56, wencongyang (A) wrote: >>> On 2019/5/16 15:38, Andrew Cooper wrote: On 16/05/2019 03:46, wencongyang (A) wrote: > Hi all > > Fill buffers, load ports are shared between

Re: [Xen-devel] [PATCH] coverage: GCC coverage libfdt Makefile fix

2019-05-16 Thread Viktor Mitin
Hi All, Thank you for replies. Will do all the mentioned updates and will send patch v2 after retesting it on target board (with libelf Makefile update). Thanks On Thu, May 16, 2019 at 2:40 PM Wei Liu wrote: > > On Thu, May 16, 2019 at 11:37:33AM +, Julien Grall wrote: > > > > > > On 16/05/

Re: [Xen-devel] [PATCH RFC V2 24/45] xen: let vcpu_create() select processor

2019-05-16 Thread Jan Beulich
>>> On 06.05.19 at 08:56, wrote: > --- a/xen/common/schedule.c > +++ b/xen/common/schedule.c > @@ -314,14 +314,42 @@ static struct sched_item *sched_alloc_item(struct vcpu > *v) > return NULL; > } > > -int sched_init_vcpu(struct vcpu *v, unsigned int processor) > +static unsigned int sche

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