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Philip Reames via llvm-dev <llvm-dev at lists.llvm.org> writes: > Weak -1 in general.  I'm not strongly opposed, but I see very little > value in this migration and a lot of headache.  Others have explained > this well, so I'll mostly skip that.  I particular dislike the assumed > fork model; I work in patches, so that's a ton of overhead process wise.  Can you

I''m using W2K2 32bit on a 3.2.1 Lenny-amd64 host. While the pv disk driver works as expected, I encounter problems with the network driver. I tried several installation scenarios, all with the same result. My test looks like this: I install gplpv, but without letting the networking driver install. After reboot I RTL8139 ist still active and working, and gplpv devices manage the disks.

...direct call target back into the patchable code section. What's supposed to happen the first time this code is actually executed is that the running application thread calls into the helper routine, does a dynamic lookup of the callee (using the normal dynamic dispatch logic including all cornercases), patches the actual callee's entry address back into the source of the call, and then tail calls into the actual callee. However, there's a complication with the step involved with doing the dynamic dispatch. If the actual callee was visible to the LLVM compile, we might have proven...

On Thu, Jan 25, 2018 at 05:14:04PM +0800, Wei Wang wrote: > This patch series is separated from the previous "Virtio-balloon > Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_HINT, > implemented by this series enables the virtio-balloon driver to report > hints of guest free pages to the host. It can be used to accelerate live > migration of VMs. Here is

On Wed, Jan 17, 2018 at 01:10:11PM +0800, Wei Wang wrote: > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free pages by sending a new cmd > id to the guest via the free_page_report_cmd_id configuration register. > > When the guest starts

On Wed, Jan 17, 2018 at 01:10:11PM +0800, Wei Wang wrote: > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free pages by sending a new cmd > id to the guest via the free_page_report_cmd_id configuration register. > > When the guest starts

> > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free pages by sending a new cmd > id to the guest via the free_page_report_cmd_id configuration register. > > When the guest starts to report, the first element added to the free page

> > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free pages by sending a new cmd > id to the guest via the free_page_report_cmd_id configuration register. > > When the guest starts to report, the first element added to the free page

Generate dependencies almost like done by fixdep in the kernel. This teaches make to rebuild cpio image when content has changed. Also restructured usr/Kbuild a little so we better utilise parallel makes (dash, gzip, utils and kinit are now build in parallel). Signed-off-by: Sam Ravnborg <sam@ravnborg.org> --- patch is on top of hpa's linux tree, so path differ if applied to the klibc

On Thu, Feb 08, 2018 at 05:50:16PM +0800, Wei Wang wrote: > This patch series is separated from the previous "Virtio-balloon > Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_HINT, > implemented by this series enables the virtio-balloon driver to report > hints of guest free pages to the host. It can be used to accelerate live > migration of VMs. Here is

On 01/18/2018 12:44 AM, Michael S. Tsirkin wrote: > On Wed, Jan 17, 2018 at 01:10:11PM +0800, Wei Wang wrote: > > >> +{ >> + struct scatterlist sg; >> + unsigned int unused; >> + int err; >> + >> + sg_init_one(&sg, addr, sizeof(uint32_t)); > This passes a guest-endian value to host. This is a problem: > should always pass LE values. I think

This patch series is separated from the previous "Virtio-balloon Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_VQ, implemented by this series enables the virtio-balloon driver to report hints of guest free pages to the host. It can be used to accelerate live migration of VMs. Here is an introduction of this usage: Live migration needs to transfer the VM's memory

This patch series is separated from the previous "Virtio-balloon Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_VQ, implemented by this series enables the virtio-balloon driver to report hints of guest free pages to the host. It can be used to accelerate live migration of VMs. Here is an introduction of this usage: Live migration needs to transfer the VM's memory

On 01/17/2018 04:21 PM, Pankaj Gupta wrote: >> Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the >> support of reporting hints of guest free pages to host via virtio-balloon. >> >> Host requests the guest to report free pages by sending a new cmd >> id to the guest via the free_page_report_cmd_id configuration register. >> >> When the

> On 01/17/2018 04:21 PM, Pankaj Gupta wrote: > >> Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the > >> support of reporting hints of guest free pages to host via virtio-balloon. > >> > >> Host requests the guest to report free pages by sending a new cmd > >> id to the guest via the free_page_report_cmd_id configuration

On 25.06.2018 14:05, Wei Wang wrote: > This patch series is separated from the previous "Virtio-balloon > Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_HINT, > implemented by this series enables the virtio-balloon driver to report > hints of guest free pages to the host. It can be used to accelerate live > migration of VMs. Here is an introduction of

Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_VQ feature indicates the support of reporting hints of guest free pages to host via virtio-balloon. Host requests the guest to report free pages by sending a new cmd id to the guest via the free_page_report_cmd_id configuration register. When the guest starts to report, the first element added to the free page vq is the cmd id given by host. When the

On Fri, Jan 19, 2018 at 11:44:21AM +0800, Wei Wang wrote: > On 01/18/2018 12:44 AM, Michael S. Tsirkin wrote: > > On Wed, Jan 17, 2018 at 01:10:11PM +0800, Wei Wang wrote: > > > > > > > > +{ > > > + struct scatterlist sg; > > > + unsigned int unused; > > > + int err; > > > + > > > + sg_init_one(&sg, addr,

Hello. This question has come up in https://reviews.llvm.org/D70043 There, i'm teaching ConstantRange how no-wrap flags affect the range of `mul` instruction, with end goal of exploiting this in LVI/CVP. There are certain combinations of ranges and no-wrap flags that result in always-overflowing `mul`. For example, `mul nuw nsw i4 [2,0), [4,0)` always overflows:

This patch series is separated from the previous "Virtio-balloon Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_HINT, implemented by this series enables the virtio-balloon driver to report hints of guest free pages to the host. It can be used to accelerate live migration of VMs. Here is an introduction of this usage: Live migration needs to transfer the VM's