[PATCH v2 0/4] Add TDX Guest Support (Debug support)
From: Kuppuswamy Sathyanarayanan
Date: Tue Jul 20 2021 - 00:35:35 EST
Hi All,
Intel's Trust Domain Extensions (TDX) protect guest VMs from malicious
hosts and some physical attacks.
Following patches adds tracepoint support for TDX Guest TDCALL requests
and #VE exceptions. It also includes helper function to detect TD-DEBUG
mode which will be used by patches in other TDX series to add TD-DEBUG
mode specific features support.
This series is the continuation of the following TDX guest related patches.
[set 1] - https://lore.kernel.org/patchwork/project/lkml/list/?series=508773
[set 2] - https://lore.kernel.org/patchwork/project/lkml/list/?series=508792
[set 3] - https://lore.kernel.org/patchwork/project/lkml/list/?series=508794
[set 4] - https://lore.kernel.org/patchwork/project/lkml/list/?series=508795
Also please note that this series alone is not necessarily fully
functional. You need to apply all the above 4 patch series to get
a fully functional TDX guest.
Changes since v1:
* Rebased on top of v5.14-rc1.
Kuppuswamy Sathyanarayanan (3):
x86/tdx: Add TDCALL tracepoint
x86/tdx: Expose TDX Guest #VE count in /proc/interrupts
x86/tdx: Add tdg_debug_enabled() interface
Sean Christopherson (1):
x86/tdx: Add #VE tracepoint
arch/x86/include/asm/hardirq.h | 3 +
arch/x86/include/asm/tdx.h | 1 +
arch/x86/include/asm/trace/tdx.h | 150 +++++++++++++++++++++++++++++++
arch/x86/kernel/irq.c | 6 ++
arch/x86/kernel/tdx.c | 71 ++++++++++++---
arch/x86/kernel/traps.c | 2 +
6 files changed, 220 insertions(+), 13 deletions(-)
create mode 100644 arch/x86/include/asm/trace/tdx.h
--
2.25.1