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f26061fe2c
Don't copy the kvm_tdx_cmd structure back to userspace when handling KVM_TDX_CAPABILITIES, as tdx_get_capabilities() doesn't modify hw_error or any other fields. Opportunistically hoist the call to tdx_get_capabilities() outside of the kvm->lock critical section, as getting the capabilities doesn't touch the VM in any way, e.g. doesn't even take @kvm. Suggested-by: Kai Huang <kai.huang@intel.com> Reviewed-by: Kai Huang <kai.huang@intel.com> Reviewed-by: Yan Zhao <yan.y.zhao@intel.com> Tested-by: Yan Zhao <yan.y.zhao@intel.com> Tested-by: Kai Huang <kai.huang@intel.com> Link: https://patch.msgid.link/20251030200951.3402865-26-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.