From: "Gupta, Pankaj" <pankaj.gupta@amd.com>
To: Chao Peng <chao.p.peng@linux.intel.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
linux-api@vger.kernel.org, linux-doc@vger.kernel.org,
qemu-devel@nongnu.org, linux-kselftest@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
Hugh Dickins <hughd@google.com>, Jeff Layton <jlayton@kernel.org>,
"J . Bruce Fields" <bfields@fieldses.org>,
Andrew Morton <akpm@linux-foundation.org>,
Shuah Khan <shuah@kernel.org>, Mike Rapoport <rppt@kernel.org>,
Steven Price <steven.price@arm.com>,
"Maciej S . Szmigiero" <mail@maciej.szmigiero.name>,
Vlastimil Babka <vbabka@suse.cz>,
Vishal Annapurve <vannapurve@google.com>,
Yu Zhang <yu.c.zhang@linux.intel.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
luto@kernel.org, jun.nakajima@intel.com, dave.hansen@intel.com,
ak@linux.intel.com, david@redhat.com, aarcange@redhat.com,
ddutile@redhat.com, dhildenb@redhat.com,
Quentin Perret <qperret@google.com>,
Michael Roth <michael.roth@amd.com>,
mhocko@suse.com, Muchun Song <songmuchun@bytedance.com>
Subject: Re: [PATCH v7 13/14] KVM: Enable and expose KVM_MEM_PRIVATE
Date: Tue, 19 Jul 2022 11:55:24 +0200 [thread overview]
Message-ID: <de1e15b8-b7e7-d077-eff8-0992bd06e38a@amd.com> (raw)
In-Reply-To: <20220706082016.2603916-14-chao.p.peng@linux.intel.com>
> Register private memslot to fd-based memory backing store and handle the
> memfile notifiers to zap the existing mappings.
>
> Currently the register is happened at memslot creating time and the
> initial support does not include page migration/swap.
>
> KVM_MEM_PRIVATE is not exposed by default, architecture code can turn
> on it by implementing kvm_arch_private_mem_supported().
>
> A 'kvm' reference is added in memslot structure since in
> memfile_notifier callbacks we can only obtain a memslot reference while
> kvm is need to do the zapping.
>
> Co-developed-by: Yu Zhang <yu.c.zhang@linux.intel.com>
> Signed-off-by: Yu Zhang <yu.c.zhang@linux.intel.com>
> Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
> ---
> include/linux/kvm_host.h | 1 +
> virt/kvm/kvm_main.c | 117 ++++++++++++++++++++++++++++++++++++---
> 2 files changed, 109 insertions(+), 9 deletions(-)
>
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index 8f56426aa1e3..4e5a0db68799 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -584,6 +584,7 @@ struct kvm_memory_slot {
> struct file *private_file;
> loff_t private_offset;
> struct memfile_notifier notifier;
> + struct kvm *kvm;
> };
>
> static inline bool kvm_slot_can_be_private(const struct kvm_memory_slot *slot)
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index bb714c2a4b06..d6f7e074cab2 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -941,6 +941,63 @@ static int kvm_vm_ioctl_set_encrypted_region(struct kvm *kvm, unsigned int ioctl
>
> return r;
> }
> +
> +static void kvm_memfile_notifier_invalidate(struct memfile_notifier *notifier,
> + pgoff_t start, pgoff_t end)
> +{
> + struct kvm_memory_slot *slot = container_of(notifier,
> + struct kvm_memory_slot,
> + notifier);
> + unsigned long base_pgoff = slot->private_offset >> PAGE_SHIFT;
> + gfn_t start_gfn = slot->base_gfn;
> + gfn_t end_gfn = slot->base_gfn + slot->npages;
> +
> +
> + if (start > base_pgoff)
> + start_gfn = slot->base_gfn + start - base_pgoff;
> +
> + if (end < base_pgoff + slot->npages)
> + end_gfn = slot->base_gfn + end - base_pgoff;
> +
> + if (start_gfn >= end_gfn)
> + return;
> +
> + kvm_zap_gfn_range(slot->kvm, start_gfn, end_gfn);
> +}
> +
> +static struct memfile_notifier_ops kvm_memfile_notifier_ops = {
> + .invalidate = kvm_memfile_notifier_invalidate,
> +};
> +
> +#define KVM_MEMFILE_FLAGS (MEMFILE_F_USER_INACCESSIBLE | \
> + MEMFILE_F_UNMOVABLE | \
> + MEMFILE_F_UNRECLAIMABLE)
> +
> +static inline int kvm_private_mem_register(struct kvm_memory_slot *slot)
> +{
> + slot->notifier.ops = &kvm_memfile_notifier_ops;
> + return memfile_register_notifier(slot->private_file, KVM_MEMFILE_FLAGS,
> + &slot->notifier);
> +}
> +
> +static inline void kvm_private_mem_unregister(struct kvm_memory_slot *slot)
> +{
> + memfile_unregister_notifier(&slot->notifier);
> +}
> +
> +#else /* !CONFIG_HAVE_KVM_PRIVATE_MEM */
> +
> +static inline int kvm_private_mem_register(struct kvm_memory_slot *slot)
> +{
> + WARN_ON_ONCE(1);
> + return -EOPNOTSUPP;
> +}
> +
> +static inline void kvm_private_mem_unregister(struct kvm_memory_slot *slot)
> +{
> + WARN_ON_ONCE(1);
> +}
> +
> #endif /* CONFIG_HAVE_KVM_PRIVATE_MEM */
>
> #ifdef CONFIG_HAVE_KVM_PM_NOTIFIER
> @@ -987,6 +1044,11 @@ static void kvm_destroy_dirty_bitmap(struct kvm_memory_slot *memslot)
> /* This does not remove the slot from struct kvm_memslots data structures */
> static void kvm_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot)
> {
> + if (slot->flags & KVM_MEM_PRIVATE) {
> + kvm_private_mem_unregister(slot);
> + fput(slot->private_file);
> + }
> +
> kvm_destroy_dirty_bitmap(slot);
>
> kvm_arch_free_memslot(kvm, slot);
> @@ -1548,10 +1610,16 @@ bool __weak kvm_arch_private_mem_supported(struct kvm *kvm)
> return false;
> }
>
> -static int check_memory_region_flags(const struct kvm_user_mem_region *mem)
> +static int check_memory_region_flags(struct kvm *kvm,
> + const struct kvm_user_mem_region *mem)
> {
> u32 valid_flags = KVM_MEM_LOG_DIRTY_PAGES;
>
> +#ifdef CONFIG_HAVE_KVM_PRIVATE_MEM
> + if (kvm_arch_private_mem_supported(kvm))
> + valid_flags |= KVM_MEM_PRIVATE;
> +#endif
> +
> #ifdef __KVM_HAVE_READONLY_MEM
> valid_flags |= KVM_MEM_READONLY;
> #endif
> @@ -1627,6 +1695,12 @@ static int kvm_prepare_memory_region(struct kvm *kvm,
> {
> int r;
>
> + if (change == KVM_MR_CREATE && new->flags & KVM_MEM_PRIVATE) {
> + r = kvm_private_mem_register(new);
> + if (r)
> + return r;
> + }
> +
> /*
> * If dirty logging is disabled, nullify the bitmap; the old bitmap
> * will be freed on "commit". If logging is enabled in both old and
> @@ -1655,6 +1729,9 @@ static int kvm_prepare_memory_region(struct kvm *kvm,
> if (r && new && new->dirty_bitmap && (!old || !old->dirty_bitmap))
> kvm_destroy_dirty_bitmap(new);
>
> + if (r && change == KVM_MR_CREATE && new->flags & KVM_MEM_PRIVATE)
> + kvm_private_mem_unregister(new);
> +
> return r;
> }
>
> @@ -1952,7 +2029,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
> int as_id, id;
> int r;
>
> - r = check_memory_region_flags(mem);
> + r = check_memory_region_flags(kvm, mem);
> if (r)
> return r;
>
> @@ -1971,6 +2048,10 @@ int __kvm_set_memory_region(struct kvm *kvm,
> !access_ok((void __user *)(unsigned long)mem->userspace_addr,
> mem->memory_size))
> return -EINVAL;
> + if (mem->flags & KVM_MEM_PRIVATE &&
> + (mem->private_offset & (PAGE_SIZE - 1) ||
> + mem->private_offset > U64_MAX - mem->memory_size))
> + return -EINVAL;
> if (as_id >= KVM_ADDRESS_SPACE_NUM || id >= KVM_MEM_SLOTS_NUM)
> return -EINVAL;
> if (mem->guest_phys_addr + mem->memory_size < mem->guest_phys_addr)
> @@ -2009,6 +2090,9 @@ int __kvm_set_memory_region(struct kvm *kvm,
> if ((kvm->nr_memslot_pages + npages) < kvm->nr_memslot_pages)
> return -EINVAL;
> } else { /* Modify an existing slot. */
> + /* Private memslots are immutable, they can only be deleted. */
> + if (mem->flags & KVM_MEM_PRIVATE)
> + return -EINVAL;
> if ((mem->userspace_addr != old->userspace_addr) ||
> (npages != old->npages) ||
> ((mem->flags ^ old->flags) & KVM_MEM_READONLY))
> @@ -2037,10 +2121,27 @@ int __kvm_set_memory_region(struct kvm *kvm,
> new->npages = npages;
> new->flags = mem->flags;
> new->userspace_addr = mem->userspace_addr;
> + if (mem->flags & KVM_MEM_PRIVATE) {
> + new->private_file = fget(mem->private_fd);
> + if (!new->private_file) {
> + r = -EINVAL;
> + goto out;
> + }
> + new->private_offset = mem->private_offset;
> + }
> +
> + new->kvm = kvm;
>
> r = kvm_set_memslot(kvm, old, new, change);
> if (r)
> - kfree(new);
> + goto out;
> +
> + return 0;
> +
> +out:
> + if (new->private_file)
> + fput(new->private_file);
> + kfree(new);
> return r;
> }
> EXPORT_SYMBOL_GPL(__kvm_set_memory_region);
> @@ -4712,12 +4813,10 @@ static long kvm_vm_ioctl(struct file *filp,
> (u32 __user *)(argp + offsetof(typeof(mem), flags))))
> goto out;
>
> - if (flags & KVM_MEM_PRIVATE) {
> - r = -EINVAL;
> - goto out;
> - }
> -
> - size = sizeof(struct kvm_userspace_memory_region);
> + if (flags & KVM_MEM_PRIVATE)
> + size = sizeof(struct kvm_userspace_memory_region_ext);
Not sure if we use kvm_userspace_memory_region_ext or
kvm_user_mem_region, just for readability.
> + else
> + size = sizeof(struct kvm_userspace_memory_region);
>
> if (copy_from_user(&mem, argp, size))
> goto out;
next prev parent reply other threads:[~2022-07-19 9:55 UTC|newest]
Thread overview: 398+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-06 8:20 [PATCH v7 00/14] KVM: mm: fd-based approach for supporting KVM guest private memory Chao Peng
2022-07-06 8:20 ` [PATCH v7 01/14] mm: Add F_SEAL_AUTO_ALLOCATE seal to memfd Chao Peng
2022-07-21 9:44 ` David Hildenbrand
2022-07-21 9:50 ` David Hildenbrand
2022-07-21 15:05 ` Sean Christopherson
2022-07-25 13:46 ` Chao Peng
2022-07-21 10:27 ` Gupta, Pankaj
2022-07-25 13:54 ` Chao Peng
2022-07-25 14:49 ` Gupta, Pankaj
2022-07-25 13:42 ` Chao Peng
2022-08-05 17:55 ` Paolo Bonzini
2022-08-05 18:06 ` David Hildenbrand
2022-08-10 9:40 ` Chao Peng
2022-08-10 9:38 ` Chao Peng
2022-08-17 23:41 ` Kirill A. Shutemov
2022-08-18 9:09 ` Paolo Bonzini
2022-08-23 7:36 ` David Hildenbrand
2022-08-24 10:20 ` Chao Peng
2022-08-26 15:19 ` Fuad Tabba
2022-08-29 15:18 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 02/14] selftests/memfd: Add tests for F_SEAL_AUTO_ALLOCATE Chao Peng
2022-08-05 13:11 ` David Hildenbrand
2022-07-06 8:20 ` [PATCH v7 03/14] mm: Introduce memfile_notifier Chao Peng
2022-08-05 13:22 ` David Hildenbrand
2022-08-10 9:22 ` Chao Peng
2022-08-10 10:05 ` David Hildenbrand
2022-08-10 14:38 ` Sean Christopherson
2022-08-11 12:27 ` Quentin Perret
2022-08-11 13:39 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 04/14] mm/shmem: Support memfile_notifier Chao Peng
2022-07-12 18:02 ` Gupta, Pankaj
2022-07-13 7:44 ` Chao Peng
2022-07-13 10:01 ` Gupta, Pankaj
2022-07-13 23:49 ` Chao Peng
2022-07-14 4:15 ` Gupta, Pankaj
2022-08-05 13:26 ` David Hildenbrand
2022-08-10 9:25 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 05/14] mm/memfd: Introduce MFD_INACCESSIBLE flag Chao Peng
2022-08-05 13:28 ` David Hildenbrand
2022-08-10 9:37 ` Chao Peng
2022-08-10 9:55 ` David Hildenbrand
2022-08-11 13:17 ` Chao Peng
2022-09-07 16:18 ` Kirill A. Shutemov
2022-07-06 8:20 ` [PATCH v7 06/14] KVM: Rename KVM_PRIVATE_MEM_SLOTS to KVM_INTERNAL_MEM_SLOTS Chao Peng
2022-07-06 8:20 ` [PATCH v7 07/14] KVM: Use gfn instead of hva for mmu_notifier_retry Chao Peng
2022-07-15 11:36 ` Gupta, Pankaj
2022-07-18 13:29 ` Chao Peng
2022-07-18 15:26 ` Sean Christopherson
2022-07-19 14:02 ` Chao Peng
2022-08-04 7:10 ` Isaku Yamahata
2022-08-10 8:19 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 08/14] KVM: Rename mmu_notifier_* Chao Peng
2022-07-29 19:02 ` Sean Christopherson
2022-08-03 10:13 ` Chao Peng
2022-08-05 19:54 ` Paolo Bonzini
2022-08-10 8:09 ` Chao Peng
2023-05-23 7:19 ` Kautuk Consul
2023-05-23 14:19 ` Sean Christopherson
2023-05-24 6:12 ` Kautuk Consul
2023-05-24 20:16 ` Sean Christopherson
2023-05-24 20:33 ` Peter Zijlstra
2023-05-24 21:39 ` Sean Christopherson
2023-05-25 8:54 ` Peter Zijlstra
2023-05-25 3:52 ` Kautuk Consul
2023-05-24 20:28 ` Peter Zijlstra
2022-07-06 8:20 ` [PATCH v7 09/14] KVM: Extend the memslot to support fd-based private memory Chao Peng
2022-07-29 19:51 ` Sean Christopherson
2022-08-03 10:08 ` Chao Peng
2022-08-03 14:42 ` Sean Christopherson
2022-07-06 8:20 ` [PATCH v7 10/14] KVM: Add KVM_EXIT_MEMORY_FAULT exit Chao Peng
2022-07-06 8:20 ` [PATCH v7 11/14] KVM: Register/unregister the guest private memory regions Chao Peng
2022-07-19 8:00 ` Gupta, Pankaj
2022-07-19 14:08 ` Chao Peng
2022-07-19 14:23 ` Gupta, Pankaj
2022-07-20 15:07 ` Chao Peng
2022-07-20 15:31 ` Gupta, Pankaj
2022-07-20 16:21 ` Sean Christopherson
2022-07-20 17:41 ` Gupta, Pankaj
2022-07-21 7:34 ` Wei Wang
2022-07-21 9:29 ` Chao Peng
2022-07-21 17:58 ` Sean Christopherson
2022-07-25 13:04 ` Chao Peng
2022-07-29 19:54 ` Sean Christopherson
2022-08-02 0:49 ` Sean Christopherson
2022-08-02 16:38 ` Sean Christopherson
2022-08-03 9:48 ` Chao Peng
2022-08-03 15:51 ` Sean Christopherson
2022-08-04 7:58 ` Chao Peng
2022-07-20 16:44 ` Sean Christopherson
2022-07-21 9:37 ` Chao Peng
2022-08-19 19:37 ` Vishal Annapurve
2022-08-24 10:37 ` Chao Peng
2022-08-26 15:19 ` Fuad Tabba
2022-08-29 15:21 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 12/14] KVM: Handle page fault for private memory Chao Peng
2022-07-29 20:58 ` Sean Christopherson
2022-08-03 9:52 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 13/14] KVM: Enable and expose KVM_MEM_PRIVATE Chao Peng
2022-07-19 9:55 ` Gupta, Pankaj [this message]
2022-07-19 14:12 ` Chao Peng
2022-07-06 8:20 ` [PATCH v7 14/14] memfd_create.2: Describe MFD_INACCESSIBLE flag Chao Peng
2022-08-01 14:40 ` Dave Hansen
2022-08-03 9:53 ` Chao Peng
2022-07-13 3:58 ` [PATCH v7 00/14] KVM: mm: fd-based approach for supporting KVM guest private memory Gupta, Pankaj
2022-07-13 7:57 ` Chao Peng
2022-07-13 10:35 ` Gupta, Pankaj
2022-07-13 23:59 ` Chao Peng
2022-07-14 4:39 ` Gupta, Pankaj
2022-07-14 5:06 ` Gupta, Pankaj
2022-07-14 4:29 ` Andy Lutomirski
2022-07-14 5:13 ` Gupta, Pankaj
2022-08-11 10:02 ` Nikunj A. Dadhania
2022-08-11 11:30 ` Gupta, Pankaj
2022-08-11 13:32 ` Chao Peng
2022-08-11 17:28 ` Nikunj A. Dadhania
2022-08-12 3:22 ` Nikunj A. Dadhania
2022-08-11 17:18 ` Nikunj A. Dadhania
2022-08-11 23:02 ` Gupta, Pankaj
2022-08-12 6:02 ` Gupta, Pankaj
2022-08-12 7:18 ` Gupta, Pankaj
2022-08-12 8:48 ` Nikunj A. Dadhania
2022-08-12 9:33 ` Gupta, Pankaj
2022-08-15 13:04 ` Chao Peng
2022-08-16 4:28 ` Nikunj A. Dadhania
2022-08-16 11:33 ` Gupta, Pankaj
2022-08-16 12:24 ` Kirill A . Shutemov
2022-08-16 13:03 ` Gupta, Pankaj
2022-08-16 15:38 ` Sean Christopherson
2022-08-17 15:27 ` Michael Roth
2022-08-23 1:25 ` Isaku Yamahata
2022-08-23 17:41 ` Gupta, Pankaj
2022-08-18 5:40 ` Hugh Dickins
2022-08-18 13:24 ` Kirill A . Shutemov
2022-08-19 0:20 ` Sean Christopherson
2022-08-19 3:38 ` Hugh Dickins
2022-08-19 22:53 ` Sean Christopherson
2022-08-23 7:55 ` David Hildenbrand
2022-08-23 16:05 ` Sean Christopherson
2022-08-24 9:41 ` Chao Peng
2022-09-09 4:55 ` Andy Lutomirski
2022-08-19 3:00 ` Hugh Dickins
2022-08-20 0:27 ` Kirill A. Shutemov
2022-08-21 5:15 ` Hugh Dickins
2022-08-31 14:24 ` Kirill A . Shutemov
2022-09-02 10:27 ` Chao Peng
2022-09-02 12:30 ` Kirill A . Shutemov
2022-09-08 1:10 ` Kirill A. Shutemov
2022-09-13 9:44 ` Sean Christopherson
2022-09-13 13:28 ` Kirill A. Shutemov
2022-09-13 14:53 ` Sean Christopherson
2022-09-13 16:00 ` Kirill A. Shutemov
2022-09-13 16:12 ` Sean Christopherson
2022-09-09 4:48 ` Andy Lutomirski
2022-09-09 14:32 ` Kirill A . Shutemov
2022-09-09 19:11 ` Andy Lutomirski
2022-09-09 23:02 ` Kirill A . Shutemov
2022-08-21 10:27 ` Matthew Wilcox
2022-08-24 10:27 ` Chao Peng
2022-09-09 4:44 ` Andy Lutomirski
2022-08-26 15:19 ` Fuad Tabba
2022-08-29 15:17 ` Chao Peng
2022-08-31 9:12 ` Fuad Tabba
2022-09-02 10:19 ` Chao Peng
2022-09-09 15:35 ` Michael Roth
2022-12-02 6:13 [PATCH v10 0/9] KVM: mm: fd-based approach for supporting KVM Chao Peng
2022-12-02 6:13 ` [PATCH v10 1/9] mm: Introduce memfd_restricted system call to create restricted user memory Chao Peng
2022-12-06 14:57 ` Fuad Tabba
2022-12-07 13:50 ` Chao Peng
2022-12-13 23:49 ` Huang, Kai
2022-12-19 7:53 ` Chao Peng
2022-12-19 8:48 ` Huang, Kai
2022-12-20 7:22 ` Chao Peng
2022-12-20 8:33 ` Huang, Kai
2022-12-21 13:39 ` Chao Peng
2022-12-22 0:37 ` Huang, Kai
2022-12-23 8:20 ` Chao Peng
2023-01-23 14:03 ` Vlastimil Babka
2023-01-23 15:18 ` Kirill A. Shutemov
2023-02-13 14:23 ` Vlastimil Babka
2023-01-23 23:01 ` Huang, Kai
2023-01-23 23:38 ` Sean Christopherson
2023-01-24 7:51 ` Vlastimil Babka
2022-12-22 18:15 ` Sean Christopherson
2022-12-23 0:50 ` Huang, Kai
2022-12-23 8:24 ` Chao Peng
2023-01-23 15:43 ` Kirill A. Shutemov
2023-02-13 11:43 ` Vlastimil Babka
2023-02-13 13:10 ` Michael Roth
2023-01-13 21:54 ` Sean Christopherson
2023-01-17 12:41 ` Chao Peng
2023-01-17 16:34 ` Sean Christopherson
2023-01-18 8:16 ` Chao Peng
2023-01-18 10:17 ` Isaku Yamahata
2023-02-22 2:07 ` Alexey Kardashevskiy
2023-02-24 5:42 ` Chao Peng
2023-01-30 5:26 ` Ackerley Tng
2023-01-30 6:04 ` Wang, Wei W
2023-02-16 9:51 ` Nikunj A. Dadhania
2023-03-20 19:08 ` Michael Roth
2023-04-13 15:25 ` [PATCH v7 00/14] KVM: mm: fd-based approach for supporting KVM guest private memory Christian Brauner
2023-04-13 22:28 ` Sean Christopherson
2023-04-14 22:38 ` Ackerley Tng
2023-04-14 23:26 ` Sean Christopherson
2023-04-15 0:06 ` Sean Christopherson
2023-04-19 8:29 ` Christian Brauner
2023-04-20 0:49 ` Sean Christopherson
2023-04-20 8:35 ` Christian Brauner
2023-04-13 17:22 ` [PATCH v10 1/9] mm: Introduce memfd_restricted system call to create restricted user memory Ackerley Tng
2022-12-02 6:13 ` [PATCH v10 2/9] KVM: Introduce per-page memory attributes Chao Peng
2022-12-06 13:34 ` Fabiano Rosas
2022-12-07 14:31 ` Chao Peng
2022-12-06 15:07 ` Fuad Tabba
2022-12-07 14:51 ` Chao Peng
2022-12-16 15:09 ` Borislav Petkov
2022-12-19 8:15 ` Chao Peng
2022-12-19 10:17 ` Borislav Petkov
2022-12-20 7:24 ` Chao Peng
2022-12-28 8:28 ` Chenyi Qiang
2023-01-03 1:39 ` Chao Peng
2023-01-03 3:32 ` Wang, Wei W
2023-01-03 23:06 ` Sean Christopherson
2023-01-05 4:39 ` Chao Peng
2023-01-13 22:02 ` Sean Christopherson
2023-01-17 3:21 ` Binbin Wu
2023-01-17 13:30 ` Chao Peng
2023-01-17 17:25 ` Sean Christopherson
2023-02-09 7:25 ` Isaku Yamahata
2023-02-10 0:35 ` Sean Christopherson
2023-02-13 23:53 ` Isaku Yamahata
2023-02-14 18:07 ` Sean Christopherson
2023-05-19 17:32 ` Nicolas Saenz Julienne
2023-05-19 18:23 ` Sean Christopherson
2023-05-19 19:49 ` Nicolas Saenz Julienne
2023-05-19 19:57 ` Sean Christopherson
2023-05-23 18:59 ` Nicolas Saenz Julienne
2022-12-02 6:13 ` [PATCH v10 3/9] KVM: Extend the memslot to support fd-based private memory Chao Peng
2022-12-05 9:03 ` Fuad Tabba
2022-12-06 11:53 ` Chao Peng
2022-12-06 12:39 ` Fuad Tabba
2022-12-07 15:10 ` Chao Peng
2022-12-08 8:37 ` Xiaoyao Li
2022-12-08 11:30 ` Chao Peng
2022-12-13 12:04 ` Xiaoyao Li
2022-12-19 7:50 ` Chao Peng
2022-12-19 14:36 ` Borislav Petkov
2022-12-20 7:43 ` Chao Peng
2022-12-20 9:55 ` Borislav Petkov
2022-12-21 13:42 ` Chao Peng
2023-01-05 11:23 ` Jarkko Sakkinen
2023-01-06 9:40 ` Chao Peng
2023-01-09 19:32 ` Sean Christopherson
2023-01-10 9:14 ` Chao Peng
2023-01-10 22:51 ` Vishal Annapurve
2023-01-13 22:37 ` Sean Christopherson
2023-01-17 12:42 ` Chao Peng
2023-01-20 23:42 ` Jarkko Sakkinen
2023-01-20 23:28 ` Jarkko Sakkinen
2022-12-02 6:13 ` [PATCH v10 4/9] KVM: Add KVM_EXIT_MEMORY_FAULT exit Chao Peng
2022-12-06 15:47 ` Fuad Tabba
2022-12-07 15:11 ` Chao Peng
2023-01-13 23:13 ` Sean Christopherson
2022-12-02 6:13 ` [PATCH v10 5/9] KVM: Use gfn instead of hva for mmu_notifier_retry Chao Peng
2022-12-05 9:23 ` Fuad Tabba
2022-12-06 11:56 ` Chao Peng
2022-12-06 15:48 ` Fuad Tabba
2022-12-09 6:24 ` Chao Peng
2022-12-07 6:34 ` Isaku Yamahata
2022-12-07 15:14 ` Chao Peng
2022-12-02 6:13 ` [PATCH v10 6/9] KVM: Unmap existing mappings when change the memory attributes Chao Peng
2022-12-07 8:13 ` Yuan Yao
2022-12-08 11:20 ` Chao Peng
2022-12-09 5:43 ` Yuan Yao
2022-12-07 17:16 ` Fuad Tabba
2022-12-08 11:13 ` Chao Peng
2022-12-09 8:57 ` Fuad Tabba
2022-12-12 7:22 ` Chao Peng
2022-12-13 23:51 ` Huang, Kai
2022-12-19 7:54 ` Chao Peng
2023-01-13 22:50 ` Sean Christopherson
2022-12-02 6:13 ` [PATCH v10 7/9] KVM: Update lpage info when private/shared memory are mixed Chao Peng
2022-12-05 22:49 ` Isaku Yamahata
2022-12-06 12:02 ` Chao Peng
2022-12-07 6:42 ` Isaku Yamahata
2022-12-08 11:17 ` Chao Peng
2023-01-13 23:12 ` Sean Christopherson
2023-01-13 23:16 ` Sean Christopherson
2023-01-28 13:54 ` Chao Peng
2022-12-02 6:13 ` [PATCH v10 8/9] KVM: Handle page fault for private memory Chao Peng
2022-12-08 2:29 ` Yuan Yao
2022-12-08 11:23 ` Chao Peng
2022-12-09 5:45 ` Yuan Yao
2022-12-09 9:01 ` Fuad Tabba
2022-12-12 7:23 ` Chao Peng
2023-01-13 23:29 ` Sean Christopherson
2022-12-02 6:13 ` [PATCH v10 9/9] KVM: Enable and expose KVM_MEM_PRIVATE Chao Peng
2022-12-09 9:11 ` Fuad Tabba
2023-01-05 20:38 ` Vishal Annapurve
2023-01-06 4:13 ` Chao Peng
2023-01-14 0:01 ` Sean Christopherson
2023-01-17 13:12 ` Chao Peng
2023-01-17 19:35 ` Sean Christopherson
2023-01-18 8:23 ` Chao Peng
2023-01-28 14:00 ` Chao Peng
2023-03-08 0:13 ` Ackerley Tng
2023-03-08 7:40 ` Chao Peng
2023-03-23 0:41 ` Isaku Yamahata
2023-03-24 2:10 ` Chao Peng
2023-03-24 2:29 ` Xiaoyao Li
2023-03-28 10:41 ` Chao Peng
2023-04-14 21:08 ` Sean Christopherson
2023-04-18 23:38 ` Ackerley Tng
2023-04-25 23:01 ` Sean Christopherson
2023-03-07 19:14 ` Ackerley Tng
2023-03-07 20:27 ` Sean Christopherson
2023-01-14 0:37 ` [PATCH v10 0/9] KVM: mm: fd-based approach for supporting KVM Sean Christopherson
2023-01-16 13:48 ` Kirill A. Shutemov
2023-01-17 13:19 ` Chao Peng
2023-01-17 14:32 ` Fuad Tabba
2023-01-19 11:13 ` Isaku Yamahata
2023-01-19 15:25 ` Sean Christopherson
2023-01-19 22:37 ` Isaku Yamahata
2023-01-24 1:27 ` Sean Christopherson
2023-02-08 12:24 ` Isaku Yamahata
2023-02-13 13:01 ` Michael Roth
2023-02-21 12:11 ` Chao Peng
2023-03-23 1:27 ` Michael Roth
2023-03-24 2:13 ` Chao Peng
2023-04-12 22:01 ` Sean Christopherson
2023-04-17 14:37 ` Chao Peng
2023-04-17 15:01 ` Sean Christopherson
2023-01-24 16:08 ` Liam Merwick
2023-01-25 0:20 ` Sean Christopherson
2023-01-25 12:53 ` Kirill A. Shutemov
2023-01-25 16:01 ` Liam Merwick
2023-04-13 1:07 ` Sean Christopherson
2023-04-13 16:04 ` Kirill A. Shutemov
2023-02-16 5:13 ` Mike Rapoport
2023-02-16 9:41 ` David Hildenbrand
2023-02-22 21:53 ` Sean Christopherson
2023-04-17 15:40 ` Rename restrictedmem => guardedmem? (was: Re: [PATCH v10 0/9] KVM: mm: fd-based approach for supporting KVM) Sean Christopherson
2023-04-17 15:48 ` David Hildenbrand
2023-04-17 16:40 ` Sean Christopherson
2023-04-17 17:09 ` David Hildenbrand
2023-04-17 19:16 ` Sean Christopherson
2023-04-18 8:53 ` Fuad Tabba
2023-04-18 9:10 ` David Hildenbrand
2023-04-19 0:47 ` Sean Christopherson
2023-04-19 7:21 ` David Hildenbrand
2023-04-19 15:17 ` Sean Christopherson
2023-04-19 15:27 ` David Hildenbrand
2023-04-22 1:33 ` Sean Christopherson
2023-05-05 19:39 ` Ackerley Tng
2023-05-06 0:55 ` Sean Christopherson
2023-05-06 1:17 ` Vishal Annapurve
2023-05-15 23:46 ` Sean Christopherson
2023-07-13 22:46 ` Ackerley Tng
2023-07-14 19:29 ` Sean Christopherson
2023-07-14 23:09 ` Vishal Annapurve
2023-07-15 0:30 ` Sean Christopherson
2023-05-09 12:44 ` Chao Peng
2023-05-10 17:26 ` Vishal Annapurve
2023-05-10 20:23 ` Vishal Annapurve
2023-05-10 21:39 ` Sean Christopherson
2023-05-10 23:03 ` Vishal Annapurve
2023-05-11 20:22 ` Sean Christopherson
2023-05-19 1:07 ` Vishal Annapurve
2023-05-12 0:21 ` Michael Roth
2023-05-12 18:01 ` Sean Christopherson
2023-05-22 13:50 ` Michael Roth
2023-05-22 17:09 ` Sean Christopherson
2023-05-22 23:58 ` Michael Roth
2023-05-23 0:21 ` Sean Christopherson
2023-06-06 19:14 ` Ackerley Tng
2023-06-06 23:25 ` Sean Christopherson
2023-06-08 17:13 ` Ackerley Tng
2023-04-17 17:11 ` Ackerley Tng
2023-04-17 18:17 ` Sean Christopherson
2023-04-18 17:01 ` Ackerley Tng
2023-04-23 13:28 ` Jarkko Sakkinen
2023-05-05 20:00 ` David Hildenbrand
2023-05-06 7:44 ` Vlastimil Babka
2023-05-06 9:16 ` David Hildenbrand
2023-04-23 13:14 ` Jarkko Sakkinen
2023-03-31 23:50 [RFC PATCH v3 0/2] Providing mount in memfd_restricted() syscall Ackerley Tng
2023-03-31 23:50 ` [RFC PATCH v3 1/2] mm: restrictedmem: Allow userspace to specify mount for memfd_restricted Ackerley Tng
2023-04-03 8:21 ` David Hildenbrand
2023-04-05 22:29 ` Ackerley Tng
2023-04-04 8:25 ` Kirill A. Shutemov
2023-04-05 22:32 ` Ackerley Tng
2023-04-04 13:53 ` Christian Brauner
2023-04-04 14:58 ` Christian Brauner
2023-04-05 21:58 ` Ackerley Tng
2023-04-12 9:59 ` Christian Brauner
2023-04-13 22:53 ` Ackerley Tng
2023-04-13 23:07 ` Sean Christopherson
2023-03-31 23:50 ` [RFC PATCH v3 2/2] selftests: restrictedmem: Check hugepage-ness of shmem file backing restrictedmem fd Ackerley Tng
2023-04-03 8:24 ` David Hildenbrand
2023-04-11 1:35 ` Ackerley Tng
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