LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Kuppuswamy Sathyanarayanan  <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>,
	Andy Lutomirski <luto@kernel.org>,
	Dave Hansen <dave.hansen@intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Tony Luck <tony.luck@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>,
	Kirill Shutemov <kirill.shutemov@linux.intel.com>,
	Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
	Raj Ashok <ashok.raj@intel.com>,
	Sean Christopherson <seanjc@google.com>,
	linux-kernel@vger.kernel.org,
	Kuppuswamy Sathyanarayanan 
	<sathyanarayanan.kuppuswamy@linux.intel.com>
Subject: [RFC v2 00/32] Add TDX Guest Support
Date: Mon, 26 Apr 2021 11:01:27 -0700
Message-ID: <cover.1619458733.git.sathyanarayanan.kuppuswamy@linux.intel.com> (raw)

Hi All,

NOTE: This series is not ready for wide public review. It is being
specifically posted so that Peter Z and other experts on the entry
code can look for problems with the new exception handler (#VE).
That's also why x86@ is not being spammed.

Intel's Trust Domain Extensions (TDX) protect guest VMs from malicious
hosts and some physical attacks. This series adds the bare-minimum
support to run a TDX guest. The host-side support will be submitted
separately. Also support for advanced TD guest features like attestation
or debug-mode will be submitted separately. Also, at this point it is not
secure with some known holes in drivers, and also hasn’t been fully audited
and fuzzed yet.

TDX has a lot of similarities to SEV. It enhances confidentiality and
of guest memory and state (like registers) and includes a new exception
(#VE) for the same basic reasons as SEV-ES. Like SEV-SNP (not merged
yet), TDX limits the host's ability to effect changes in the guest
physical address space.

In contrast to the SEV code in the kernel, TDX guest memory is integrity
protected and isolated; the host is prevented from accessing guest
memory (even ciphertext).

The TDX architecture also includes a new CPU mode called
Secure-Arbitration Mode (SEAM). The software (TDX module) running in this
mode arbitrates interactions between host and guest and implements many of
the guarantees of the TDX architecture.

Some of the key differences between TD and regular VM is,

1. Multi CPU bring-up is done using the ACPI MADT wake-up table.
2. A new #VE exception handler is added. The TDX module injects #VE exception
   to the guest TD in cases of instructions that need to be emulated, disallowed
   MSR accesses, subset of CPUID leaves, etc.
3. By default memory is marked as private, and TD will selectively share it with
   VMM based on need.
4. Remote attestation is supported to enable a third party (either the owner of
   the workload or a user of the services provided by the workload) to establish
   that the workload is running on an Intel-TDX-enabled platform located within a
   TD prior to providing that workload data.

You can find TDX related documents in the following link.

https://software.intel.com/content/www/br/pt/develop/articles/intel-trust-domain-extensions.html

Changes since v1:
 * Implemented tdcall() and tdvmcall() helper functions in assembly and renamed
   them as __tdcall() and __tdvmcall().
 * Added do_general_protection() helper function to re-use protection
   code between #GP exception and TDX #VE exception handlers.
 * Addressed syscall gap issue in #VE handler support (for details check
   the commit log in "x86/traps: Add #VE support for TDX guest").
 * Modified patch titled "x86/tdx: Handle port I/O" to re-use common
   tdvmcall() helper function.
 * Added error handling support to MADT CPU wakeup code.
 * Introduced enum tdx_map_type to identify SHARED vs PRIVATE memory type.
 * Enabled shared memory in IOAPIC driver.
 * Added BINUTILS version info for TDCALL.
 * Changed the TDVMCALL vendor id from 0 to "TDX.KVM".
 * Replaced WARN() with pr_warn_ratelimited() in __tdvmcall() wrappers.
 * Fixed commit log and code comments related review comments.
 * Renamed patch titled # "x86/topology: Disable CPU hotplug support for TDX
   platforms" to "x86/topology: Disable CPU online/offline control for
   TDX guest"
 * Rebased on top of v5.12 kernel.


Erik Kaneda (1):
  ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Structure

Isaku Yamahata (1):
  x86/tdx: ioapic: Add shared bit for IOAPIC base address

Kirill A. Shutemov (16):
  x86/paravirt: Introduce CONFIG_PARAVIRT_XL
  x86/tdx: Get TD execution environment information via TDINFO
  x86/traps: Add #VE support for TDX guest
  x86/tdx: Add HLT support for TDX guest
  x86/tdx: Wire up KVM hypercalls
  x86/tdx: Add MSR support for TDX guest
  x86/tdx: Handle CPUID via #VE
  x86/io: Allow to override inX() and outX() implementation
  x86/tdx: Handle port I/O
  x86/tdx: Handle in-kernel MMIO
  x86/mm: Move force_dma_unencrypted() to common code
  x86/tdx: Exclude Shared bit from __PHYSICAL_MASK
  x86/tdx: Make pages shared in ioremap()
  x86/tdx: Add helper to do MapGPA TDVMALL
  x86/tdx: Make DMA pages shared
  x86/kvm: Use bounce buffers for TD guest

Kuppuswamy Sathyanarayanan (10):
  x86/tdx: Introduce INTEL_TDX_GUEST config option
  x86/cpufeatures: Add TDX Guest CPU feature
  x86/x86: Add is_tdx_guest() interface
  x86/tdx: Add __tdcall() and __tdvmcall() helper functions
  x86/traps: Add do_general_protection() helper function
  x86/tdx: Handle MWAIT, MONITOR and WBINVD
  ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Mailbox Structure
  ACPI/table: Print MADT Wake table information
  x86/acpi, x86/boot: Add multiprocessor wake-up support
  x86/topology: Disable CPU online/offline control for TDX guest

Sean Christopherson (4):
  x86/boot: Add a trampoline for APs booting in 64-bit mode
  x86/boot: Avoid #VE during compressed boot for TDX platforms
  x86/boot: Avoid unnecessary #VE during boot process
  x86/tdx: Forcefully disable legacy PIC for TDX guests

 arch/x86/Kconfig                         |  28 +-
 arch/x86/boot/compressed/Makefile        |   2 +
 arch/x86/boot/compressed/head_64.S       |  10 +-
 arch/x86/boot/compressed/misc.h          |   1 +
 arch/x86/boot/compressed/pgtable.h       |   2 +-
 arch/x86/boot/compressed/tdcall.S        |   9 +
 arch/x86/boot/compressed/tdx.c           |  32 ++
 arch/x86/include/asm/apic.h              |   3 +
 arch/x86/include/asm/cpufeatures.h       |   1 +
 arch/x86/include/asm/idtentry.h          |   4 +
 arch/x86/include/asm/io.h                |  24 +-
 arch/x86/include/asm/irqflags.h          |  38 +-
 arch/x86/include/asm/kvm_para.h          |  21 +
 arch/x86/include/asm/paravirt.h          |  22 +-
 arch/x86/include/asm/paravirt_types.h    |   3 +-
 arch/x86/include/asm/pgtable.h           |   3 +
 arch/x86/include/asm/realmode.h          |   1 +
 arch/x86/include/asm/tdx.h               | 176 +++++++++
 arch/x86/kernel/Makefile                 |   1 +
 arch/x86/kernel/acpi/boot.c              |  79 ++++
 arch/x86/kernel/apic/apic.c              |   8 +
 arch/x86/kernel/apic/io_apic.c           |  12 +-
 arch/x86/kernel/asm-offsets.c            |  22 ++
 arch/x86/kernel/head64.c                 |   3 +
 arch/x86/kernel/head_64.S                |  13 +-
 arch/x86/kernel/idt.c                    |   6 +
 arch/x86/kernel/paravirt.c               |   4 +-
 arch/x86/kernel/pci-swiotlb.c            |   2 +-
 arch/x86/kernel/smpboot.c                |   5 +
 arch/x86/kernel/tdcall.S                 | 361 +++++++++++++++++
 arch/x86/kernel/tdx-kvm.c                |  45 +++
 arch/x86/kernel/tdx.c                    | 480 +++++++++++++++++++++++
 arch/x86/kernel/topology.c               |   3 +-
 arch/x86/kernel/traps.c                  |  81 ++--
 arch/x86/mm/Makefile                     |   2 +
 arch/x86/mm/ioremap.c                    |   8 +-
 arch/x86/mm/mem_encrypt.c                |  75 ----
 arch/x86/mm/mem_encrypt_common.c         |  85 ++++
 arch/x86/mm/mem_encrypt_identity.c       |   1 +
 arch/x86/mm/pat/set_memory.c             |  48 ++-
 arch/x86/realmode/rm/header.S            |   1 +
 arch/x86/realmode/rm/trampoline_64.S     |  49 ++-
 arch/x86/realmode/rm/trampoline_common.S |   5 +-
 drivers/acpi/tables.c                    |  11 +
 include/acpi/actbl2.h                    |  26 +-
 45 files changed, 1654 insertions(+), 162 deletions(-)
 create mode 100644 arch/x86/boot/compressed/tdcall.S
 create mode 100644 arch/x86/boot/compressed/tdx.c
 create mode 100644 arch/x86/include/asm/tdx.h
 create mode 100644 arch/x86/kernel/tdcall.S
 create mode 100644 arch/x86/kernel/tdx-kvm.c
 create mode 100644 arch/x86/kernel/tdx.c
 create mode 100644 arch/x86/mm/mem_encrypt_common.c

-- 
2.25.1


             reply index

Thread overview: 381+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-26 18:01 Kuppuswamy Sathyanarayanan [this message]
2021-04-26 18:01 ` [RFC v2 01/32] x86/paravirt: Introduce CONFIG_PARAVIRT_XL Kuppuswamy Sathyanarayanan
2021-04-27 17:31   ` Borislav Petkov
2021-05-06 14:59     ` Kirill A. Shutemov
2021-05-10  8:07     ` Juergen Gross
2021-05-10 15:52       ` Andi Kleen
2021-05-10 15:56         ` Juergen Gross
2021-05-12 12:07           ` Kirill A. Shutemov
2021-05-12 13:18           ` Peter Zijlstra
2021-05-12 13:24             ` Andi Kleen
2021-05-12 13:51               ` Juergen Gross
2021-05-17 23:50                 ` [RFC v2-fix 1/1] x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 02/32] x86/tdx: Introduce INTEL_TDX_GUEST config option Kuppuswamy Sathyanarayanan
2021-04-26 21:09   ` Randy Dunlap
2021-04-26 22:32     ` Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 03/32] x86/cpufeatures: Add TDX Guest CPU feature Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 04/32] x86/x86: Add is_tdx_guest() interface Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 05/32] x86/tdx: Add __tdcall() and __tdvmcall() helper functions Kuppuswamy Sathyanarayanan
2021-04-26 20:32   ` Dave Hansen
2021-04-26 22:31     ` Kuppuswamy, Sathyanarayanan
2021-04-26 23:17       ` Dave Hansen
2021-04-27  2:29         ` Kuppuswamy, Sathyanarayanan
2021-04-27 14:29           ` Dave Hansen
2021-04-27 19:18             ` Kuppuswamy, Sathyanarayanan
2021-04-27 19:20               ` Dave Hansen
2021-04-28 17:42                 ` [PATCH v1 1/1] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() " Kuppuswamy Sathyanarayanan
2021-05-19  5:58                 ` [RFC v2-fix-v1 " Kuppuswamy Sathyanarayanan
2021-05-19  6:04                   ` Kuppuswamy, Sathyanarayanan
2021-05-19 15:31                   ` Dave Hansen
2021-05-19 19:09                     ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-19 19:13                     ` [RFC v2-fix-v1 " Kuppuswamy, Sathyanarayanan
2021-05-19 20:09                       ` Sean Christopherson
2021-05-19 20:49                         ` Andi Kleen
2021-05-27  0:30                           ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-27 15:25                             ` Luck, Tony
2021-05-27 15:52                               ` Kuppuswamy, Sathyanarayanan
2021-05-27 16:25                                 ` Luck, Tony
2021-04-26 18:01 ` [RFC v2 06/32] x86/tdx: Get TD execution environment information via TDINFO Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 07/32] x86/traps: Add do_general_protection() helper function Kuppuswamy Sathyanarayanan
2021-05-07 21:20   ` Dave Hansen
2021-04-26 18:01 ` [RFC v2 08/32] x86/traps: Add #VE support for TDX guest Kuppuswamy Sathyanarayanan
2021-05-07 21:36   ` Dave Hansen
2021-05-13 19:47     ` Andi Kleen
2021-05-13 20:07       ` Dave Hansen
2021-05-13 22:43         ` Andi Kleen
2021-05-13 20:14       ` Dave Hansen
2021-05-18  0:09     ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 15:11       ` Dave Hansen
2021-05-18 15:45         ` Andi Kleen
2021-05-18 15:56           ` Dave Hansen
2021-05-18 16:00             ` Andi Kleen
2021-05-21 19:22           ` Dan Williams
2021-05-24 14:02             ` Andi Kleen
2021-05-27  0:29               ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-27 15:11                 ` Luck, Tony
2021-05-27 16:24                   ` Sean Christopherson
2021-05-27 16:36                     ` Dave Hansen
2021-05-21 18:45       ` [RFC v2-fix " Kuppuswamy, Sathyanarayanan
2021-05-21 19:15         ` Dave Hansen
2021-05-21 19:57           ` Kuppuswamy, Sathyanarayanan
2021-06-08 17:02   ` [RFC v2 08/32] " Dave Hansen
2021-06-08 17:48     ` Sean Christopherson
2021-06-08 17:53       ` Dave Hansen
2021-06-08 18:12         ` Andi Kleen
2021-06-08 18:15           ` Dave Hansen
2021-06-08 18:17             ` Andy Lutomirski
2021-06-08 18:18             ` Andi Kleen
2021-04-26 18:01 ` [RFC v2 09/32] x86/tdx: Add HLT " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 10/32] x86/tdx: Wire up KVM hypercalls Kuppuswamy Sathyanarayanan
2021-05-07 21:46   ` Dave Hansen
2021-05-08  0:59     ` Kuppuswamy, Sathyanarayanan
2021-05-12 13:00       ` Kirill A. Shutemov
2021-05-12 14:10         ` Kuppuswamy, Sathyanarayanan
2021-05-12 14:29           ` Dave Hansen
2021-05-13 19:29             ` Kuppuswamy, Sathyanarayanan
2021-05-13 19:33               ` Dave Hansen
2021-05-18  0:15                 ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 15:51                   ` Dave Hansen
2021-05-18 16:23                     ` Sean Christopherson
2021-05-18 20:12                     ` Kuppuswamy, Sathyanarayanan
2021-05-18 20:19                       ` Dave Hansen
2021-05-18 20:57                         ` Kuppuswamy, Sathyanarayanan
2021-05-18 21:19                         ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-18 23:29                           ` Dave Hansen
2021-05-19  1:17                             ` [RFC v2-fix-v3 " Kuppuswamy Sathyanarayanan
2021-05-19  1:20                               ` Sathyanarayanan Kuppuswamy Natarajan
2021-04-26 18:01 ` [RFC v2 11/32] x86/tdx: Add MSR support for TDX guest Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 12/32] x86/tdx: Handle CPUID via #VE Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 13/32] x86/io: Allow to override inX() and outX() implementation Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 14/32] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-05-10 21:57   ` Dan Williams
2021-05-10 23:08     ` Andi Kleen
2021-05-10 23:34       ` Dan Williams
2021-05-11  0:01         ` Andi Kleen
2021-05-11  0:21           ` Dan Williams
2021-05-11  0:30         ` Kuppuswamy, Sathyanarayanan
2021-05-11  1:07           ` Dan Williams
2021-05-11  2:29             ` Kuppuswamy, Sathyanarayanan
2021-05-11 14:39               ` Dave Hansen
2021-05-11 15:08                 ` Kuppuswamy, Sathyanarayanan
2021-05-11  0:56         ` Kuppuswamy, Sathyanarayanan
2021-05-11  2:19           ` Andi Kleen
2021-05-11 15:35     ` Dave Hansen
2021-05-11 15:43       ` Dan Williams
2021-05-12  6:17       ` Dan Williams
2021-05-27  4:23         ` [RFC v2-fix-v1 0/3] " Kuppuswamy Sathyanarayanan
2021-05-27  4:23           ` [RFC v2-fix-v1 1/3] tdx: Introduce generic protected_guest abstraction Kuppuswamy Sathyanarayanan
2021-06-01 21:14             ` [RFC v2-fix-v2 1/1] x86: Introduce generic protected guest abstraction Kuppuswamy Sathyanarayanan
2021-06-02 17:20               ` Sean Christopherson
2021-06-02 18:15                 ` Tom Lendacky
2021-06-02 18:25                   ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:29                   ` Borislav Petkov
2021-06-02 18:32                     ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:39                       ` Borislav Petkov
2021-06-02 18:45                         ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:19               ` Tom Lendacky
2021-06-02 18:29                 ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:30                 ` Borislav Petkov
2021-06-03 18:14               ` Borislav Petkov
2021-06-03 18:15                 ` [RFC v2-fix-v2 1/1] x86: Introduce generic protected guest abstractionn Borislav Petkov
2021-06-04 22:01                   ` Tom Lendacky
2021-06-04 22:13                     ` Kuppuswamy, Sathyanarayanan
2021-06-04 22:15                     ` Borislav Petkov
2021-06-04 23:31                       ` Tom Lendacky
2021-06-05 11:03                         ` Borislav Petkov
2021-06-05 18:12                           ` Kuppuswamy, Sathyanarayanan
2021-06-05 20:08                             ` Borislav Petkov
2021-06-07 19:55                   ` Kirill A. Shutemov
2021-06-07 20:14                     ` Borislav Petkov
2021-06-07 22:26                       ` Kuppuswamy, Sathyanarayanan
2021-06-08 21:30                         ` [RFC v2-fix-v3 1/1] x86: Introduce generic protected guest abstraction Kuppuswamy Sathyanarayanan
2021-06-03 18:33                 ` [RFC v2-fix-v2 " Kuppuswamy, Sathyanarayanan
2021-06-03 18:41                   ` Borislav Petkov
2021-06-03 18:54                     ` Kuppuswamy, Sathyanarayanan
2021-06-07 18:01                 ` Kuppuswamy, Sathyanarayanan
2021-06-07 18:26                   ` Borislav Petkov
2021-06-09 14:01                     ` Kuppuswamy, Sathyanarayanan
2021-06-09 14:32                       ` Borislav Petkov
2021-06-09 14:56                         ` Kuppuswamy, Sathyanarayanan
2021-06-09 15:01                           ` Borislav Petkov
2021-06-09 19:41                             ` [RFC v2-fix-v4 " Kuppuswamy Sathyanarayanan
2021-06-09 22:53                               ` Sathyanarayanan Kuppuswamy Natarajan
2021-05-27  4:23           ` [RFC v2-fix-v1 2/3] x86/tdx: Handle early IO operations Kuppuswamy Sathyanarayanan
2021-06-05  4:26             ` Williams, Dan J
2021-05-27  4:23           ` [RFC v2-fix-v1 3/3] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-06-05 18:52             ` Dan Williams
2021-06-05 20:08               ` Kuppuswamy, Sathyanarayanan
2021-06-05 21:08                 ` Dan Williams
2021-06-07 16:24                   ` Kuppuswamy, Sathyanarayanan
2021-06-07 17:17                     ` Dan Williams
2021-06-07 21:52                       ` Kuppuswamy, Sathyanarayanan
2021-06-07 22:00                         ` Dan Williams
2021-06-08  2:57                           ` Andi Kleen
2021-06-08 15:40                       ` [RFC v2-fix-v2 0/3] " Kuppuswamy Sathyanarayanan
2021-06-08 15:40                         ` [RFC v2-fix-v2 1/3] x86/tdx: Handle port I/O in decompression code Kuppuswamy Sathyanarayanan
2021-06-08 23:12                           ` Dan Williams
2021-06-08 15:40                         ` [RFC v2-fix-v2 2/3] x86/tdx: Handle early IO operations Kuppuswamy Sathyanarayanan
2021-06-08 15:40                         ` [RFC v2-fix-v2 3/3] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-06-08 16:26                           ` Dan Williams
2021-04-26 18:01 ` [RFC v2 15/32] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-05-07 21:52   ` Dave Hansen
2021-05-18  0:48     ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 15:00       ` Dave Hansen
2021-05-18 15:56         ` Andi Kleen
2021-05-18 16:04           ` Dave Hansen
2021-05-18 16:10             ` Andi Kleen
2021-05-18 16:22               ` Dave Hansen
2021-05-18 17:05                 ` Andi Kleen
2021-05-18 17:28               ` Andi Kleen
2021-05-18 17:11           ` Sean Christopherson
2021-05-18 17:21             ` Andi Kleen
2021-05-18 17:46               ` Dave Hansen
2021-05-18 18:36                 ` Sean Christopherson
2021-05-18 20:20                 ` Andi Kleen
2021-05-18 20:40                   ` Dave Hansen
2021-05-18 21:05                     ` Andi Kleen
2021-05-18 18:22               ` Sean Christopherson
2021-05-18 20:28                 ` Andi Kleen
2021-05-18 20:37                   ` Sean Christopherson
2021-05-18 20:56                     ` Andi Kleen
2021-05-18 16:18         ` Sean Christopherson
2021-05-18 17:15           ` Andi Kleen
2021-05-18 18:17             ` Sean Christopherson
2021-05-20 22:47               ` Kirill A. Shutemov
2021-06-02 19:42     ` [RFC v2-fix-v2 0/2] " Kuppuswamy Sathyanarayanan
2021-06-02 19:42       ` [RFC v2-fix-v2 1/2] x86/sev-es: Abstract out MMIO instruction decoding Kuppuswamy Sathyanarayanan
2021-06-05 21:56         ` Dan Williams
2021-06-08 15:59           ` [RFC v2-fix-v3 0/4] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 1/4] x86/insn-eval: Introduce insn_get_modrm_reg_ptr() Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 2/4] x86/insn-eval: Introduce insn_decode_mmio() Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 3/4] x86/sev-es: Use insn_decode_mmio() for MMIO implementation Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 4/4] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-06-02 19:42       ` [RFC v2-fix-v2 2/2] " Kuppuswamy Sathyanarayanan
2021-06-02 21:01         ` Andi Kleen
2021-06-02 22:14           ` Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD Kuppuswamy Sathyanarayanan
2021-05-11  1:23   ` Dan Williams
2021-05-11  2:17     ` Andi Kleen
2021-05-11  2:44       ` Kuppuswamy, Sathyanarayanan
2021-05-11  2:51         ` Andi Kleen
2021-05-11 15:37       ` Dan Williams
2021-05-11 15:42         ` Andi Kleen
2021-05-11 15:44         ` Dave Hansen
2021-05-11 15:50           ` Dan Williams
2021-05-11 15:52             ` Andi Kleen
2021-05-11 16:04               ` Dave Hansen
2021-05-11 17:06                 ` Andi Kleen
2021-05-11 17:42                   ` Dave Hansen
2021-05-11 17:48                     ` Andi Kleen
2021-05-24 23:32                       ` [RFC v2-fix-v2 1/2] x86/tdx: Handle MWAIT and MONITOR Kuppuswamy Sathyanarayanan
2021-05-24 23:32                         ` [RFC v2-fix-v2 2/2] x86/tdx: Ignore WBINVD instruction for TDX guest Kuppuswamy Sathyanarayanan
2021-05-24 23:39                           ` Dan Williams
2021-05-25  0:29                             ` Kuppuswamy, Sathyanarayanan
2021-05-25  0:50                               ` Dan Williams
2021-05-25  0:54                                 ` Sean Christopherson
2021-05-25  1:02                                 ` Andi Kleen
2021-05-25  1:45                                   ` Dan Williams
2021-05-25  2:13                                     ` Andi Kleen
2021-05-25  2:49                                       ` Dan Williams
2021-05-25  3:27                                         ` Andi Kleen
2021-05-25  3:40                                           ` Dan Williams
2021-05-26  1:09                                             ` Andi Kleen
2021-05-27  4:38                                               ` [RFC v2-fix-v3 1/1] " Kuppuswamy Sathyanarayanan
2021-06-05  3:35                                                 ` Dan Williams
2021-06-08 21:35                                                   ` [RFC v2-fix-v3 1/1] x86/tdx: Skip " Kuppuswamy Sathyanarayanan
2021-06-08 21:41                                                     ` Dan Williams
2021-06-08 22:17                                                     ` Dave Hansen
2021-06-08 22:34                                                       ` Andi Kleen
2021-06-08 22:36                                                       ` Kuppuswamy, Sathyanarayanan
2021-06-08 22:53                                                         ` Dave Hansen
2021-06-08 23:04                                                           ` Andi Kleen
2021-06-08 23:04                                                           ` Kuppuswamy, Sathyanarayanan
2021-06-08 23:32                                                     ` Dan Williams
2021-06-08 23:38                                                       ` Dave Hansen
2021-06-09  0:07                                                         ` Dan Williams
2021-06-09  0:14                                                           ` Kuppuswamy, Sathyanarayanan
2021-06-09  1:10                                                           ` [RFC v2-fix-v4 " Kuppuswamy Sathyanarayanan
2021-06-09  3:40                                                             ` Dan Williams
2021-06-09  3:56                                                               ` Kuppuswamy, Sathyanarayanan
2021-06-09  4:19                                                                 ` Dan Williams
2021-06-09  4:27                                                                   ` Andi Kleen
2021-06-09 15:09                                                                     ` Dan Williams
2021-06-09 16:12                                                                       ` Andy Lutomirski
2021-06-09 17:28                                                                         ` Kuppuswamy, Sathyanarayanan
2021-06-09 17:31                                                                           ` Dan Williams
2021-06-09 18:24                                                                             ` Kuppuswamy, Sathyanarayanan
2021-06-09 19:49                                                                               ` [RFC v2-fix-v5 1/1] x86: Skip WBINVD instruction for VM guest Kuppuswamy Sathyanarayanan
2021-06-09 19:56                                                                                 ` Dan Williams
2021-06-09 21:03                                                                                 ` Dave Hansen
2021-06-09 21:38                                                                                   ` Dan Williams
2021-06-09 21:42                                                                                     ` Kuppuswamy, Sathyanarayanan
2021-06-09 23:55                                                                                       ` Dave Hansen
2021-06-09  4:02                                                               ` [RFC v2-fix-v4 1/1] x86/tdx: Skip WBINVD instruction for TDX guest Andy Lutomirski
2021-06-09  4:21                                                                 ` Dan Williams
2021-06-09  4:25                                                                 ` Andi Kleen
2021-06-09  4:32                                                                   ` Andy Lutomirski
2021-06-09  4:40                                                                     ` Andi Kleen
2021-06-09  4:54                                                                       ` Kuppuswamy, Sathyanarayanan
2021-06-09 14:12                                                             ` Dave Hansen
2021-05-25  4:32                                       ` [RFC v2-fix-v2 2/2] x86/tdx: Ignore " Dave Hansen
2021-05-25  0:36                             ` Andi Kleen
2021-05-24 23:42                           ` Dave Hansen
2021-05-25  0:39                             ` Andi Kleen
2021-05-25  0:53                               ` Dan Williams
2021-05-25  2:26                         ` [RFC v2-fix-v2 1/2] x86/tdx: Handle MWAIT and MONITOR Dan Williams
2021-05-11 14:08     ` [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD Dave Hansen
2021-05-11 16:09       ` Sean Christopherson
2021-05-11 16:16         ` Dave Hansen
2021-05-11 15:53   ` Dave Hansen
2021-04-26 18:01 ` [RFC v2 17/32] ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Structure Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 18/32] ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Mailbox Structure Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 19/32] ACPI/table: Print MADT Wake table information Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 20/32] x86/acpi, x86/boot: Add multiprocessor wake-up support Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 21/32] x86/boot: Add a trampoline for APs booting in 64-bit mode Kuppuswamy Sathyanarayanan
2021-05-13  2:56   ` Dan Williams
2021-05-18  0:54     ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18  2:06       ` Dan Williams
2021-05-18  2:53         ` Kuppuswamy, Sathyanarayanan
2021-05-18  4:08           ` Dan Williams
2021-05-20  0:18             ` Kuppuswamy, Sathyanarayanan
2021-05-20  0:40               ` Dan Williams
2021-05-20  0:42                 ` Kuppuswamy, Sathyanarayanan
2021-05-21 14:39                   ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-21 18:29                     ` Dan Williams
2021-04-26 18:01 ` [RFC v2 22/32] x86/boot: Avoid #VE during compressed boot for TDX platforms Kuppuswamy Sathyanarayanan
2021-05-13  3:03   ` Dan Williams
2021-04-26 18:01 ` [RFC v2 23/32] x86/boot: Avoid unnecessary #VE during boot process Kuppuswamy Sathyanarayanan
2021-05-13  3:23   ` Dan Williams
2021-05-18  0:59     ` [WARNING: UNSCANNABLE EXTRACTION FAILED][WARNING: UNSCANNABLE EXTRACTION FAILED][RFC v2-fix 1/1] x86/boot: Avoid #VE during boot for TDX platforms Kuppuswamy Sathyanarayanan
2021-05-19 16:53       ` [RFC " Dave Hansen
2021-05-21 14:35         ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-21 16:11           ` Dave Hansen
2021-05-21 18:18             ` Sean Christopherson
2021-05-21 18:30               ` Dave Hansen
2021-05-21 18:32                 ` Kuppuswamy, Sathyanarayanan
2021-05-24 23:27                   ` [RFC v2-fix-v3 " Kuppuswamy Sathyanarayanan
2021-05-27 21:25                     ` [RFC v2-fix-v4 " Kuppuswamy Sathyanarayanan
2021-06-08 23:14                       ` Dan Williams
2021-05-21 18:31             ` [RFC v2-fix-v2 " Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 24/32] x86/topology: Disable CPU online/offline control for TDX guest Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 25/32] x86/tdx: Forcefully disable legacy PIC for TDX guests Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 26/32] x86/mm: Move force_dma_unencrypted() to common code Kuppuswamy Sathyanarayanan
2021-05-07 21:54   ` Dave Hansen
2021-05-10 22:19     ` Kuppuswamy, Sathyanarayanan
2021-05-10 22:23       ` Dave Hansen
2021-05-12 13:08         ` Kirill A. Shutemov
2021-05-12 15:44           ` Dave Hansen
2021-05-12 15:53             ` Sean Christopherson
2021-05-13 16:40               ` Kuppuswamy, Sathyanarayanan
2021-05-13 17:49                 ` Dave Hansen
2021-05-13 18:17                   ` Kuppuswamy, Sathyanarayanan
2021-05-13 19:38                   ` Andi Kleen
2021-05-13 19:42                     ` Dave Hansen
2021-05-17 18:16                     ` Sean Christopherson
2021-05-17 18:27                       ` Kuppuswamy, Sathyanarayanan
2021-05-17 18:33                         ` Dave Hansen
2021-05-17 18:37                           ` Sean Christopherson
2021-05-17 22:32                             ` Kuppuswamy, Sathyanarayanan
2021-05-17 23:11                               ` Andi Kleen
2021-05-18  1:28             ` Kuppuswamy, Sathyanarayanan
2021-05-27  4:46               ` Kuppuswamy, Sathyanarayanan
2021-05-27  4:47                 ` [RFC v2-fix-v1 1/1] " Kuppuswamy Sathyanarayanan
2021-06-01  2:10                   ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 27/32] x86/tdx: Exclude Shared bit from __PHYSICAL_MASK Kuppuswamy Sathyanarayanan
2021-05-19  5:00   ` Kuppuswamy, Sathyanarayanan
2021-05-19 16:14   ` Dave Hansen
2021-05-20 18:48     ` Kuppuswamy, Sathyanarayanan
2021-05-20 18:56       ` Kuppuswamy, Sathyanarayanan
2021-05-20 19:33       ` Sean Christopherson
2021-05-20 19:42         ` Kuppuswamy, Sathyanarayanan
2021-05-20 20:16           ` Sean Christopherson
2021-05-20 20:31             ` Andi Kleen
2021-05-20 21:18               ` Sean Christopherson
2021-05-20 21:23                 ` Dave Hansen
2021-05-20 21:28                   ` Kuppuswamy, Sathyanarayanan
2021-05-20 23:25                     ` Andi Kleen
2021-05-20 20:56             ` Dave Hansen
2021-05-31 21:46               ` Kirill A. Shutemov
2021-06-01  2:08                 ` [RFC v2-fix-v1 1/1] x86/tdx: Exclude Shared bit from physical_mask Kuppuswamy Sathyanarayanan
2021-05-20 20:30       ` [RFC v2 27/32] x86/tdx: Exclude Shared bit from __PHYSICAL_MASK Dave Hansen
2021-04-26 18:01 ` [RFC v2 28/32] x86/tdx: Make pages shared in ioremap() Kuppuswamy Sathyanarayanan
2021-05-07 21:55   ` Dave Hansen
2021-05-07 22:38     ` Andi Kleen
2021-05-10 22:23       ` Kuppuswamy, Sathyanarayanan
2021-05-10 22:30         ` Dave Hansen
2021-05-10 22:52           ` Sean Christopherson
2021-05-11  9:35             ` Borislav Petkov
2021-05-20 20:12               ` Kuppuswamy, Sathyanarayanan
2021-05-21 15:18                 ` Borislav Petkov
2021-05-21 16:19                   ` Tom Lendacky
2021-05-21 18:49                     ` Borislav Petkov
2021-05-21 21:14                       ` Tom Lendacky
2021-05-25 18:21                         ` Kuppuswamy, Sathyanarayanan
2021-05-31 15:13                           ` Borislav Petkov
2021-05-31 17:32                             ` Kuppuswamy, Sathyanarayanan
2021-05-31 17:55                               ` Borislav Petkov
2021-05-31 18:45                                 ` Kuppuswamy, Sathyanarayanan
2021-05-31 19:14                                   ` Borislav Petkov
2021-06-01  2:07                                     ` [RFC v2-fix-v1 1/1] " Kuppuswamy Sathyanarayanan
2021-06-01 21:16                                     ` [RFC v2 28/32] " Kuppuswamy, Sathyanarayanan
2021-05-26 21:37                     ` Kuppuswamy, Sathyanarayanan
2021-05-26 22:02                       ` Tom Lendacky
2021-05-26 22:14                         ` Tom Lendacky
2021-05-26 22:20                           ` Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 29/32] x86/tdx: Add helper to do MapGPA TDVMALL Kuppuswamy Sathyanarayanan
2021-05-19 15:59   ` Dave Hansen
2021-05-20 23:14     ` Kuppuswamy, Sathyanarayanan
2021-05-27  4:56       ` [RFC v2-fix-v1 1/1] x86/tdx: Add helper to do MapGPA hypercall Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 30/32] x86/tdx: Make DMA pages shared Kuppuswamy Sathyanarayanan
2021-05-18  1:19   ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 19:55     ` Sean Christopherson
2021-05-18 22:12       ` Kuppuswamy, Sathyanarayanan
2021-05-18 22:31         ` Dave Hansen
2021-06-01  2:06           ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 31/32] x86/kvm: Use bounce buffers for TD guest Kuppuswamy Sathyanarayanan
2021-06-01  2:03   ` [RFC v2-fix-v1 1/1] " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 32/32] x86/tdx: ioapic: Add shared bit for IOAPIC base address Kuppuswamy Sathyanarayanan
2021-05-07 23:06   ` Dave Hansen
2021-05-24 23:29     ` [RFC v2-fix-v2 1/1] " Kuppuswamy Sathyanarayanan
2021-06-01  1:28       ` [RFC v2-fix-v3 " Kuppuswamy Sathyanarayanan
2021-05-03 23:21 ` [RFC v2 00/32] Add TDX Guest Support Kuppuswamy, Sathyanarayanan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=cover.1619458733.git.sathyanarayanan.kuppuswamy@linux.intel.com \
    --to=sathyanarayanan.kuppuswamy@linux.intel.com \
    --cc=ak@linux.intel.com \
    --cc=ashok.raj@intel.com \
    --cc=dan.j.williams@intel.com \
    --cc=dave.hansen@intel.com \
    --cc=kirill.shutemov@linux.intel.com \
    --cc=knsathya@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luto@kernel.org \
    --cc=peterz@infradead.org \
    --cc=seanjc@google.com \
    --cc=tony.luck@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git
	git clone --mirror https://lore.kernel.org/lkml/10 lkml/git/10.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git