| From: |
| isaku.yamahata-AT-intel.com |
| To: |
| kvm-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org |
| Subject: |
| [RFC PATCH v3 00/11] KVM: guest memory: Misc enhacnement |
| Date: |
| Wed, 28 Jun 2023 15:42:59 -0700 |
| Message-ID: |
| <cover.1687991811.git.isaku.yamahata@intel.com> |
| Cc: |
| isaku.yamahata-AT-intel.com, isaku.yamahata-AT-gmail.com, Paolo Bonzini <pbonzini-AT-redhat.com>, erdemaktas-AT-google.com, Sean Christopherson <seanjc-AT-google.com>, Sagi Shahar <sagis-AT-google.com>, David Matlack <dmatlack-AT-google.com>, Kai Huang <kai.huang-AT-intel.com>, Zhi Wang <zhi.wang.linux-AT-gmail.com>, chen.bo-AT-intel.com, linux-coco-AT-lists.linux.dev, Chao Peng <chao.p.peng-AT-linux.intel.com>, Ackerley Tng <ackerleytng-AT-google.com>, Vishal Annapurve <vannapurve-AT-google.com>, Michael Roth <michael.roth-AT-amd.com>, Yuan Yao <yuan.yao-AT-linux.intel.com> |
| Archive-link: |
| Article |
From: Isaku Yamahata <isaku.yamahata@intel.com>
Hello. I've updated the patch series based on the feedback. Here are the
discussion points.
- 06/11 KVM: x86: Introduce PFERR_GUEST_ENC_MASK to indicate fault is private
Michael has his own opinion on how to indicate private fault.
- 09/11 KVM: Add new members to struct kvm_gfn_range to operate on
- 10/11 KVM: x86: Add gmem hook for initializing private memory
SNP needs the callback. TDX won't use this one.
- 11/11 KVM: x86: Add gmem hook for invalidating private memory
SNP needs the callback. TDX doesn't use this one at the moment, but would
use it.
- VM type:
I didn't rename KVM_X86_PROTECTED_VM to KVM_X86_SW_PROTECTED_VM in this patch
series. It's easy to rename it if desired.
Thanks,
This is an RFC patch series based on KVM gmem [1] and [2] for the common use of
TDX and SEV-SNP.
[1] KVM gmem patches
https://github.com/sean-jc/linux/tree/x86/kvm_gmem_solo
[2] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support
https://lore.kernel.org/lkml/20230612042559.375660-1-mich...
---
v3:
- Imported common patches from Michael Roth which can be useful for both SNP
and TDX. And reorder patches.
- Update struct kvm_gfn_range to drop flag, and add add only_private, and
only_shared
- Update kvm_arch_set_memory_attributes() and added a x86 vendor callback for
it.
v2:
https://lore.kernel.org/all/cover.1687474039.git.isaku.ya...
v1:
https://lore.kernel.org/all/cover.1686858861.git.isaku.ya...
Brijesh Singh (1):
KVM: x86: Export the kvm_zap_gfn_range() for the SNP use
Isaku Yamahata (8):
KVM: selftests: Fix test_add_overlapping_private_memory_regions()
KVM: selftests: Fix guest_memfd()
KVM: selftests: x86: typo in private_mem_conversions_test.c
KVM: x86: Add is_vm_type_supported callback
KVM: x86/mmu: Pass around full 64-bit error code for the KVM page
fault
KVM: x86: Introduce PFERR_GUEST_ENC_MASK to indicate fault is private
KVM: Fix set_mem_attr ioctl when error case
KVM: Add new members to struct kvm_gfn_range to operate on
Michael Roth (2):
KVM: x86: Add gmem hook for initializing private memory
KVM: x86: Add gmem hook for invalidating private memory
arch/x86/include/asm/kvm-x86-ops.h | 4 ++
arch/x86/include/asm/kvm_host.h | 12 +++++
arch/x86/include/uapi/asm/kvm.h | 1 +
arch/x86/kvm/mmu.h | 2 -
arch/x86/kvm/mmu/mmu.c | 51 ++++++++++++++-----
arch/x86/kvm/mmu/mmu_internal.h | 20 ++++++--
arch/x86/kvm/mmu/mmutrace.h | 2 +-
arch/x86/kvm/mmu/paging_tmpl.h | 2 +-
arch/x86/kvm/svm/svm.c | 7 +++
arch/x86/kvm/vmx/vmx.c | 6 +++
arch/x86/kvm/x86.c | 16 +++++-
arch/x86/kvm/x86.h | 2 +
include/linux/kvm_host.h | 16 ++++--
.../testing/selftests/kvm/guest_memfd_test.c | 4 +-
.../selftests/kvm/set_memory_region_test.c | 16 +++++-
.../kvm/x86_64/private_mem_conversions_test.c | 2 +-
virt/kvm/guest_mem.c | 50 +++++++++++++++++-
virt/kvm/kvm_main.c | 24 +++++----
18 files changed, 192 insertions(+), 45 deletions(-)
base-commit: be8abcec83c87d4e15ae04816b685fe260c4bcfd
--
2.25.1
