From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Ackerley Tng <ackerleytng@google.com>
Cc: kvm@vger.kernel.org, linux-api@vger.kernel.org,
linux-arch@vger.kernel.org, linux-doc@vger.kernel.org,
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Subject: Re: [RFC PATCH v3 1/2] mm: restrictedmem: Allow userspace to specify mount for memfd_restricted
Date: Tue, 4 Apr 2023 11:25:07 +0300 [thread overview]
Message-ID: <20230404082507.sbyfahwc4gdupmya@box.shutemov.name> (raw)
In-Reply-To: <592ebd9e33a906ba026d56dc68f42d691706f865.1680306489.git.ackerleytng@google.com>
On Fri, Mar 31, 2023 at 11:50:39PM +0000, Ackerley Tng wrote:
> By default, the backing shmem file for a restrictedmem fd is created
> on shmem's kernel space mount.
>
> With this patch, an optional tmpfs mount can be specified via an fd,
> which will be used as the mountpoint for backing the shmem file
> associated with a restrictedmem fd.
>
> This will help restrictedmem fds inherit the properties of the
> provided tmpfs mounts, for example, hugepage allocation hints, NUMA
> binding hints, etc.
>
> Permissions for the fd passed to memfd_restricted() is modeled after
> the openat() syscall, since both of these allow creation of a file
> upon a mount/directory.
>
> Permission to reference the mount the fd represents is checked upon fd
> creation by other syscalls (e.g. fsmount(), open(), or open_tree(),
> etc) and any process that can present memfd_restricted() with a valid
> fd is expected to have obtained permission to use the mount
> represented by the fd. This behavior is intended to parallel that of
> the openat() syscall.
>
> memfd_restricted() will check that the tmpfs superblock is
> writable, and that the mount is also writable, before attempting to
> create a restrictedmem file on the mount.
>
> Signed-off-by: Ackerley Tng <ackerleytng@google.com>
> ---
> include/linux/syscalls.h | 2 +-
> include/uapi/linux/restrictedmem.h | 8 ++++
> mm/restrictedmem.c | 74 +++++++++++++++++++++++++++---
> 3 files changed, 77 insertions(+), 7 deletions(-)
> create mode 100644 include/uapi/linux/restrictedmem.h
>
> diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
> index f9e9e0c820c5..a23c4c385cd3 100644
> --- a/include/linux/syscalls.h
> +++ b/include/linux/syscalls.h
> @@ -1056,7 +1056,7 @@ asmlinkage long sys_memfd_secret(unsigned int flags);
> asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
> unsigned long home_node,
> unsigned long flags);
> -asmlinkage long sys_memfd_restricted(unsigned int flags);
> +asmlinkage long sys_memfd_restricted(unsigned int flags, int mount_fd);
>
> /*
> * Architecture-specific system calls
> diff --git a/include/uapi/linux/restrictedmem.h b/include/uapi/linux/restrictedmem.h
> new file mode 100644
> index 000000000000..22d6f2285f6d
> --- /dev/null
> +++ b/include/uapi/linux/restrictedmem.h
> @@ -0,0 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> +#ifndef _UAPI_LINUX_RESTRICTEDMEM_H
> +#define _UAPI_LINUX_RESTRICTEDMEM_H
> +
> +/* flags for memfd_restricted */
> +#define RMFD_USERMNT 0x0001U
> +
> +#endif /* _UAPI_LINUX_RESTRICTEDMEM_H */
> diff --git a/mm/restrictedmem.c b/mm/restrictedmem.c
> index c5d869d8c2d8..f7b62364a31a 100644
> --- a/mm/restrictedmem.c
> +++ b/mm/restrictedmem.c
> @@ -1,11 +1,12 @@
> // SPDX-License-Identifier: GPL-2.0
> -#include "linux/sbitmap.h"
> +#include <linux/namei.h>
> #include <linux/pagemap.h>
> #include <linux/pseudo_fs.h>
> #include <linux/shmem_fs.h>
> #include <linux/syscalls.h>
> #include <uapi/linux/falloc.h>
> #include <uapi/linux/magic.h>
> +#include <uapi/linux/restrictedmem.h>
> #include <linux/restrictedmem.h>
>
> struct restrictedmem {
> @@ -189,19 +190,20 @@ static struct file *restrictedmem_file_create(struct file *memfd)
> return file;
> }
>
> -SYSCALL_DEFINE1(memfd_restricted, unsigned int, flags)
> +static int restrictedmem_create(struct vfsmount *mount)
> {
> struct file *file, *restricted_file;
> int fd, err;
>
> - if (flags)
> - return -EINVAL;
> -
> fd = get_unused_fd_flags(0);
> if (fd < 0)
> return fd;
>
> - file = shmem_file_setup("memfd:restrictedmem", 0, VM_NORESERVE);
> + if (mount)
> + file = shmem_file_setup_with_mnt(mount, "memfd:restrictedmem", 0, VM_NORESERVE);
> + else
> + file = shmem_file_setup("memfd:restrictedmem", 0, VM_NORESERVE);
> +
> if (IS_ERR(file)) {
> err = PTR_ERR(file);
> goto err_fd;
> @@ -223,6 +225,66 @@ SYSCALL_DEFINE1(memfd_restricted, unsigned int, flags)
> return err;
> }
>
> +static bool is_shmem_mount(struct vfsmount *mnt)
> +{
> + return mnt && mnt->mnt_sb && mnt->mnt_sb->s_magic == TMPFS_MAGIC;
> +}
> +
> +static bool is_mount_root(struct file *file)
> +{
> + return file->f_path.dentry == file->f_path.mnt->mnt_root;
> +}
> +
> +static int restrictedmem_create_on_user_mount(int mount_fd)
> +{
> + int ret;
> + struct fd f;
> + struct vfsmount *mnt;
> +
> + f = fdget_raw(mount_fd);
> + if (!f.file)
> + return -EBADF;
> +
> + ret = -EINVAL;
> + if (!is_mount_root(f.file))
> + goto out;
> +
> + mnt = f.file->f_path.mnt;
> + if (!is_shmem_mount(mnt))
> + goto out;
> +
> + ret = file_permission(f.file, MAY_WRITE | MAY_EXEC);
Why MAY_EXEC?
> + if (ret)
> + goto out;
> +
> + ret = mnt_want_write(mnt);
> + if (unlikely(ret))
> + goto out;
> +
> + ret = restrictedmem_create(mnt);
> +
> + mnt_drop_write(mnt);
> +out:
> + fdput(f);
> +
> + return ret;
> +}
We need review from fs folks. Look mostly sensible, but I have no
experience in fs.
> +
> +SYSCALL_DEFINE2(memfd_restricted, unsigned int, flags, int, mount_fd)
> +{
> + if (flags & ~RMFD_USERMNT)
> + return -EINVAL;
> +
> + if (flags == RMFD_USERMNT) {
> + if (mount_fd < 0)
> + return -EINVAL;
> +
> + return restrictedmem_create_on_user_mount(mount_fd);
> + } else {
> + return restrictedmem_create(NULL);
> + }
Maybe restructure with single restrictedmem_create() call?
struct vfsmount *mnt = NULL;
if (flags == RMFD_USERMNT) {
...
mnt = ...();
}
return restrictedmem_create(mnt);
> +}
> +
> int restrictedmem_bind(struct file *file, pgoff_t start, pgoff_t end,
> struct restrictedmem_notifier *notifier, bool exclusive)
> {
> --
> 2.40.0.348.gf938b09366-goog
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2023-04-04 8:25 UTC|newest]
Thread overview: 398+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
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
-- strict thread matches above, loose matches on Subject: below --
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
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
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
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