From: Dexuan Cui <decui@microsoft.com>
To: ak@linux.intel.com, arnd@arndb.de, bp@alien8.de,
brijesh.singh@amd.com, dan.j.williams@intel.com,
dave.hansen@intel.com, dave.hansen@linux.intel.com,
haiyangz@microsoft.com, hpa@zytor.com, jane.chu@oracle.com,
kirill.shutemov@linux.intel.com, kys@microsoft.com,
linux-hyperv@vger.kernel.org, luto@kernel.org, mingo@redhat.com,
peterz@infradead.org, rostedt@goodmis.org,
sathyanarayanan.kuppuswamy@linux.intel.com, seanjc@google.com,
tglx@linutronix.de, tony.luck@intel.com, wei.liu@kernel.org,
Jason@zx2c4.com, nik.borisov@suse.com, mikelley@microsoft.com
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org, Tianyu.Lan@microsoft.com,
rick.p.edgecombe@intel.com, andavis@redhat.com,
mheslin@redhat.com, vkuznets@redhat.com, xiaoyao.li@intel.com,
Dexuan Cui <decui@microsoft.com>
Subject: [PATCH v3 00/10] Support TDX guests on Hyper-V (the Hyper-V specific part)
Date: Thu, 24 Aug 2023 01:07:02 -0700 [thread overview]
Message-ID: <20230824080712.30327-1-decui@microsoft.com> (raw)
Hyper-V provides two modes for running Intel TDX VMs:
1) TD Partitioning mode with a paravisor (see [1]).
2) In "fully enlightened" mode with normal TDX shared bit control
over page encryption, and no paravisor
The first mode is similar to AMD SEV-SNP's vTOM mode.
The second is similar to AMD SEV-SNP's C-bit mode.
For #2, the v6 patchset was [2], which is later split into 2 parts:
the generic TDX part (see [3][4]), and the Hyper-V specific part, i.e.
the first 5 patches of this patchset. For the second part, I rebased
the patches to Tianyu's fully enlighted SNP patchset (which has been
in the Hyper-V tree's hyperv-next branch). Since this is mostly a
straightforward rebasing, I keep the existing Acked-by and
Reviewed-by in the v6 patchset [2].
The next 3 patches of this patchset add the support for #1.
The last 2 patches (the 9th and the 10th) just make some cleanup.
Please review all the 10 patches, which are also on my github
branch [5]. The patches can apply cleanly on hyperv-next.
I tested the patches for a regular VM, a VBS VM, a SNP VM
with the paravisor, and a TDX VM with the paravisor and a TDX
VM without the paravisor, and an ARM64 VM. All the VMs worked
as expected.
Thanks,
Dexuan
References:
[1] Intel TDX Module v1.5 TD Partitioning Architecture Specification
[2] https://lwn.net/ml/linux-kernel/20230504225351.10765-1-decui@microsoft.com/
[3] https://lwn.net/ml/linux-kernel/20230811214826.9609-1-decui%40microsoft.com/
[4] https://github.com/dcui/tdx/commits/decui/mainline/x86/tdx/v10
[5] https://github.com/dcui/tdx/commits/decui/mainline/x86/hyperv/tdx-v3
Dexuan Cui (10):
x86/hyperv: Add hv_isolation_type_tdx() to detect TDX guests
x86/hyperv: Support hypercalls for fully enlightened TDX guests
Drivers: hv: vmbus: Support fully enlightened TDX guests
x86/hyperv: Fix serial console interrupts for fully enlightened TDX
guests
Drivers: hv: vmbus: Support >64 VPs for a fully enlightened TDX/SNP VM
x86/hyperv: Introduce a global variable hyperv_paravisor_present
Drivers: hv: vmbus: Bring the post_msg_page back for TDX VMs with the
paravisor
x86/hyperv: Use TDX GHCI to access some MSRs in a TDX VM with the
paravisor
x86/hyperv: Remove hv_isolation_type_en_snp
x86/hyperv: Move the code in ivm.c around to avoid unnecessary ifdef's
arch/x86/hyperv/hv_apic.c | 15 +-
arch/x86/hyperv/hv_init.c | 59 ++++-
arch/x86/hyperv/ivm.c | 374 ++++++++++++++++++-----------
arch/x86/include/asm/hyperv-tlfs.h | 3 +-
arch/x86/include/asm/mshyperv.h | 43 +++-
arch/x86/kernel/cpu/mshyperv.c | 65 ++++-
drivers/hv/connection.c | 15 +-
drivers/hv/hv.c | 78 +++++-
drivers/hv/hv_common.c | 43 +++-
drivers/hv/hyperv_vmbus.h | 11 +
include/asm-generic/mshyperv.h | 5 +-
11 files changed, 505 insertions(+), 206 deletions(-)
--
2.25.1
next reply other threads:[~2023-08-24 8:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-24 8:07 Dexuan Cui [this message]
2023-08-24 8:07 ` [PATCH v3 01/10] x86/hyperv: Add hv_isolation_type_tdx() to detect TDX guests Dexuan Cui
2023-08-24 8:07 ` [PATCH v3 02/10] x86/hyperv: Support hypercalls for fully enlightened " Dexuan Cui
2023-08-24 8:07 ` [PATCH v3 03/10] Drivers: hv: vmbus: Support " Dexuan Cui
2023-08-24 8:07 ` [PATCH v3 04/10] x86/hyperv: Fix serial console interrupts for " Dexuan Cui
2023-08-24 8:07 ` [PATCH v3 05/10] Drivers: hv: vmbus: Support >64 VPs for a fully enlightened TDX/SNP VM Dexuan Cui
2023-08-24 8:07 ` [PATCH v3 06/10] x86/hyperv: Introduce a global variable hyperv_paravisor_present Dexuan Cui
2023-08-24 14:06 ` Michael Kelley (LINUX)
2023-08-24 14:41 ` Tianyu Lan
2023-08-24 8:07 ` [PATCH v3 07/10] Drivers: hv: vmbus: Bring the post_msg_page back for TDX VMs with the paravisor Dexuan Cui
2023-08-24 14:07 ` Michael Kelley (LINUX)
2023-08-24 14:40 ` Tianyu Lan
2023-08-24 8:07 ` [PATCH v3 08/10] x86/hyperv: Use TDX GHCI to access some MSRs in a TDX VM " Dexuan Cui
2023-08-24 14:08 ` Michael Kelley (LINUX)
2023-08-24 14:44 ` Tianyu Lan
2023-12-04 15:10 ` Dave Hansen
2024-01-17 2:22 ` Wei Liu
2023-08-24 8:07 ` [PATCH v3 09/10] x86/hyperv: Remove hv_isolation_type_en_snp Dexuan Cui
2023-08-24 14:09 ` Michael Kelley (LINUX)
2023-08-24 14:45 ` Tianyu Lan
2023-08-24 8:07 ` [PATCH v3 10/10] x86/hyperv: Move the code in ivm.c around to avoid unnecessary ifdef's Dexuan Cui
2023-08-24 14:10 ` Michael Kelley (LINUX)
2023-08-24 14:46 ` Tianyu Lan
2023-08-25 0:05 ` [PATCH v3 00/10] Support TDX guests on Hyper-V (the Hyper-V specific part) Wei Liu
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