diff options
| author | Kai Huang <kai.huang@intel.com> | 2025-09-01 18:09:29 +0200 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2025-09-05 10:40:40 -0700 |
| commit | 5f9b5bd0c82925e4a71c5790a37b3142fec946d4 (patch) | |
| tree | d61da1cf25cf6f48c7a2dff955601e086ce415f8 | |
| parent | 80804847269eba880dc8c1bc64d70082692f72cd (diff) | |
x86/virt/tdx: Update the kexec section in the TDX documentation
TDX host kernel now supports kexec/kdump. Update the documentation to
reflect that.
Opportunistically, remove the parentheses in "Kexec()" and move this
section under the "Erratum" section because the updated "Kexec" section
now refers to that erratum.
Signed-off-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Tested-by: Farrah Chen <farrah.chen@intel.com>
Link: https://lore.kernel.org/all/20250901160930.1785244-7-pbonzini%40redhat.com
| -rw-r--r-- | Documentation/arch/x86/tdx.rst | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/arch/x86/tdx.rst b/Documentation/arch/x86/tdx.rst index 719043cd8b46..61670e7df2f7 100644 --- a/Documentation/arch/x86/tdx.rst +++ b/Documentation/arch/x86/tdx.rst @@ -142,13 +142,6 @@ but depends on the BIOS to behave correctly. Note TDX works with CPU logical online/offline, thus the kernel still allows to offline logical CPU and online it again. -Kexec() -~~~~~~~ - -TDX host support currently lacks the ability to handle kexec. For -simplicity only one of them can be enabled in the Kconfig. This will be -fixed in the future. - Erratum ~~~~~~~ @@ -171,6 +164,13 @@ If the platform has such erratum, the kernel prints additional message in machine check handler to tell user the machine check may be caused by kernel bug on TDX private memory. +Kexec +~~~~~~~ + +Currently kexec doesn't work on the TDX platforms with the aforementioned +erratum. It fails when loading the kexec kernel image. Otherwise it +works normally. + Interaction vs S3 and deeper states ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |