search for: pvh

Hi, I'm instresting with the PVH mode, is there any wiki available to boot up a PVH guest? I used the following source code to compile the xen and dom0. I have tried adding pvh=1 in xl.cfg file as pv mode, but guest still uses qemu device model. This patch series can also be pulled from this git tree: git://xenbits.xen.org/peop...

Hi Debian Grub maintainer, In december, Xen PVH support has been committed in grub master: https://www.mail-archive.com/grub-devel at gnu.org/msg28125.html The last pieces needed in the Linux kernel to boot PVH with grub2 landed in Linux 4.20. I asked our kernel team to carry those patches on top of the Linux 4.19 kernel that is going to ship i...

Hey all, We've been on 4.9 for some time now, and while it's still supported, I think it's time to start thinking about upgrading, and I'd like input from the community about which version to move up to. 4.19 has been out for almost 5 months now. It will include PVH domU support, and PVH dom0 support in what _is believed_ to be the final form; so when the Virt SIG moves to a version of Xen that supports PVH dom0, the kernel will already be in place with no need to upgrade. The other option would be to move to 4.14: Probably more stable (as it's been out f...

Hi R-helpers, I'm trying to use this code > pvh_dnv<-pvh[sapply(pvh=="dnv"),] to make a new dataframe containing the rows from pvh that contain the value of "dnv" in ANY column. But, it's not working. I get this error Error in match.fun(FUN) : element 1 is empty; the part of the args list of 'is.function'...

Hello @ all, i wonder if there is any support for Xen PVH (https://wiki.xen.org/wiki/Xen_Project_Software_Overview) within libvirt. If i parse a xen native domU config file with 'virsh domxml-from-native' in which i set type='pvh' it changes it in the libvirt xml output to normal pv. Also the docs of libvirt do not state something like pvh...

Hello, I''ve had a look at PVH support, and I have a few questions: - events are still dispatched the PV way through the callback, right? - I guess FPU errors don''t trigger an INT13, so I don''t need to handle that? - How about the console and store MFNs from the boot info? Are they still MFNs, or actually PFNs...

...ve been on 4.9 for some time now, and while it's still supported, I >> think it's time to start thinking about upgrading, and I'd like input >> from the community about which version to move up to. >> >> 4.19 has been out for almost 5 months now. It will include PVH domU >> support, and PVH dom0 support in what _is believed_ to be the final >> form; so when the Virt SIG moves to a version of Xen that supports PVH >> dom0, the kernel will already be in place with no need to upgrade. >> >> The other option would be to move to 4.14:...

Hi Colin, Thanks for the quick reply. On 1/5/19 8:04 PM, Colin Watson wrote: > On Thu, Jan 03, 2019 at 01:02:47AM +0100, Hans van Kranenburg wrote: >> In december, Xen PVH support has been committed in grub master: >> https://www.mail-archive.com/grub-devel at gnu.org/msg28125.html >> >> The last pieces needed in the Linux kernel to boot PVH with grub2 landed >> in Linux 4.20. I asked our kernel team to carry those patches on top of >> t...

...1/6/19 11:21 AM, Colin Watson wrote: > On Sat, Jan 05, 2019 at 10:51:13PM +0100, Hans van Kranenburg wrote: >> On 1/5/19 8:04 PM, Colin Watson wrote: >>> I think I'm OK with cherry-picking the relevant patch stack. Presumably >>> this would need to be in new grub-xen-pvh-bin / grub-xen-pvh binary >>> packages, as is usual for separate platform builds? >> >> I was thinking about having an additional... >> >> /usr/lib/grub-xen/grub-i386-xen_pvh.bin >> >> ...in the grub-xen-host package, built with the same config file...

The aim of this patch is to define a stable way in which PVH is going to do AP bringup. Since we are running inside of a HVM container, PVH should only need to set flags, cr3 and user_regs in order to bring up a vCPU, the rest can be set once the vCPU is started using the bare metal methods. Additionally, the guest can also set cr0 and cr4, and those values...

This information will be mirrored on the Xen 4.4 Roadmap wiki page: http://wiki.xen.org/wiki/Xen_Roadmap/4.4 Our timeline had us start the code freeze last Friday. However, we have not released an RC0 because we have been waiting for PVH dom0 support. Adding bug fixes during RCs makes sense, but RC0 should contain all of the functionality we expect to be in the final release. PVH dom0 support is making progress, however it''s not that clear when it will actually be ready to be checked in. The current discussion is about...

...ause I wanted to be able to discuss it. This patch series is broken down into several broad strokes: * Miscellaneous fixes or tweaks * Code motion, so future patches are simpler * Introduction of the "hvm_container" concept, which will form the basis for sharing codepaths between hvm and pvh * Start with PVH as an HVM container * Disable unneeded HVM functionality * Enable PV functionality * Disable not-yet-implemented functionality * Enable toolstack changes required to make PVH guests This patch series can also be pulled from this git tree: git://xenbits.xen.org/people/gdunlap/xen....

From: Mukesh Rathor <mukesh.rathor@oracle.com> Use .ascii and .asciz to define xen feature string. Note, the PVH string must be in a single line (not multiple lines with \) to keep the assembler from putting null char after each string before \. Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> --- arch/x86/xen/xen-head.S | 11...

...van Kranenburg wrote: > > Ok great. Since I'm not using (and probably not going to use) the > > multi-stage multiboot things, this is harder for me to help with. > > With any luck I should be able to work that bit out myself, since I > think stable's Xen has backported PVH support. So it seems it doesn't quite have enough PVH support. I get: xc: error: panic: xc_dom_core.c:702: xc_dom_find_loader: no loader found: Invalid kernel libxl: error: libxl_dom.c:638:libxl__build_dom: xc_dom_parse_image failed: No such file or directory libxl: error: libxl_create...

...ng the enforce two levels of restrictions - Xen''s and the guest kernel''s. I.e. we can''t make use of the hardware''s access control mechanisms, as we can''t put two I/O bit maps in place, and we (obviously) can''t run the guest kernel at IOPL 0. On PVH, otoh, we do have two bitmaps, and hence we could at least allow those port accesses to go without interception that Xen doesn''t need to do any internal state keeping on (and of course also only for those the guest is allowed to access). That would make - for PVH - unnecessary a significan...

...ukesh Rathor <mukesh.rathor@oracle.com> Thanks, Mukesh diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S index 1a6bca1..543877d 100644 --- a/arch/x86/xen/xen-head.S +++ b/arch/x86/xen/xen-head.S @@ -14,12 +14,17 @@ #include <asm/xen/interface.h> #ifdef CONFIG_XEN_X86_PVH -#define FEATURES_PVH "|writable_descriptor_tables" \ - "|auto_translated_physmap" \ - "|supervisor_mode_kernel" \ - "|hvm_callback_vector" +#define XEN_FEATURES_STR .ascii "!writable_page_tables" \ +...

On Sun, Jan 06, 2019 at 01:45:53AM +0100, Hans van Kranenburg wrote: > Hm, so I have a PV (or PVH) domU in a test environment here, and I tried > to use it in the Debian way of booting it. > > If I install grub-xen-bin inside the domU then I get some stuff, but not > update-grub. When I just also install grub2 it drags in more stuff, and > then I end up with update-grub and a /b...

On Mon, Jul 15, 2019 at 9:34 AM Andi Kleen <ak at linux.intel.com> wrote: > > Juergen Gross <jgross at suse.com> writes: > > > The long term plan has been to replace Xen PV guests by PVH. The first > > victim of that plan are now 32-bit PV guests, as those are used only > > rather seldom these days. Xen on x86 requires 64-bit support and with > > Grub2 now supporting PVH officially since version 2.04 there is no > > need to keep 32-bit PV guest support alive...

On 1/7/19 2:13 PM, Hans van Kranenburg wrote: > On 1/7/19 12:48 PM, Colin Watson wrote: >> [...] > >> Would you mind trying out the temporary pvh branch of >> https://salsa.debian.org/grub-team/grub ? I'd like to know whether the >> resulting grub-xen-host binary package does the right thing, when built >> in the ordinary way (I've test-built this branch using sbuild). > > Sure. I'll have a look at it to...

It was decided during xen patch review that xen map the iomem transparently, so remove xen_set_clr_mmio_pvh_pte() and the sub hypercall PHYSDEVOP_map_iomem. --- arch/x86/xen/mmu.c | 14 -------------- arch/x86/xen/setup.c | 16 ++++------------ include/xen/interface/physdev.h | 10 ---------- 3 files changed, 4 insertions(+), 36 deletions(-) diff --git a/arch/x86/xen/mmu....