Re: Unmapping KVM Guest Memory from Host Kernel

On Fri, Mar 08, 2024 at 03:22:50PM -0800, Sean Christopherson wrote: > On Fri, Mar 08, 2024, James Gowans wrote: > > However, memfd_secret doesn’t work out the box for KVM guest memory; the > > main reason seems to be that the GUP path is intentionally disabled for > > memfd_secret, so if we use a

Re: [PATCH v10 0/9] KVM: mm: fd-based approach for supporting KVM

Hi, On Fri, Dec 02, 2022 at 02:13:38PM +0800, Chao Peng wrote: > This patch series implements KVM guest private memory for confidential > computing scenarios like Intel TDX[1]. If a TDX host accesses > TDX-protected guest memory, machine check can happen which can further > crash the running host

Re: [PATCH v4 00/12] KVM: mm: fd-based approach for supporting KVM guest private memory

(addded linux-api) On Tue, Jan 18, 2022 at 09:21:09PM +0800, Chao Peng wrote: > This is the v4 of this series which try to implement the fd-based KVM > guest private memory. The patches are based on latest kvm/queue branch > commit: > > fea31d169094 KVM: x86/pmu: Fix available_event_types check

Re: [PATCH v4 04/12] mm/shmem: Support memfile_notifier

Hi, On Tue, Jan 18, 2022 at 09:21:13PM +0800, Chao Peng wrote: > It maintains a memfile_notifier list in shmem_inode_info structure and > implements memfile_pfn_ops callbacks defined by memfile_notifier. It > then exposes them to memfile_notifier via > shmem_get_memfile_notifier_info. > > We use

Re: [PATCH v4 02/12] mm/memfd: Introduce MFD_INACCESSIBLE flag

On Tue, Feb 08, 2022 at 09:49:35AM +0100, David Hildenbrand wrote: > On 07.02.22 19:51, Vlastimil Babka wrote: > > On 1/18/22 14:21, Chao Peng wrote: > >> Introduce a new memfd_create() flag indicating the content of the > >> created memfd is inaccessible from userspace. It does this by force > >>

Re: [PATCH v3] drivers/virt: vmgenid: add vm generation id driver

Hi Adrian, Usually each version of a patch is a separate e-mail thread On Fri, Nov 27, 2020 at 08:26:02PM +0200, Catangiu, Adrian Costin wrote: > - Background > > The VM Generation ID is a feature defined by Microsoft (paper: > http://go.microsoft.com/fwlink/?LinkId=260709) and supported by > mu

Re: [PATCH v2] drivers/virt: vmgenid: add vm generation id driver

On Thu, Nov 19, 2020 at 01:51:18PM +0100, Alexander Graf wrote: > > > On 19.11.20 13:02, Christian Borntraeger wrote: > > > > On 16.11.20 16:34, Catangiu, Adrian Costin wrote: > > > - Background > > > > > > The VM Generation ID is a feature defined by Microsoft (paper: > > > http://go.microsoft

Re: [Qemu-devel] [PATCH v0 0/7] Background snapshots

On Mon, Aug 13, 2018 at 08:00:19PM +0100, Dr. David Alan Gilbert wrote: > cc'ing in Mike*2 > * Denis Plotnikov (dplotni...@virtuozzo.com) wrote: > > > > > > On 26.07.2018 12:23, Peter Xu wrote: > > > On Thu, Jul 26, 2018 at 10:51:33AM +0200, Paolo Bonzini wrote: > > > > On 25/07/2018 22:04, Andre