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SubjectRe: [PATCH v29 00/20] Intel SGX foundations
On Wed, Apr 22, 2020 at 09:48:58AM -0700, Connor Kuehl wrote:
> On 4/21/20 2:52 PM, Jarkko Sakkinen wrote:
> > v29:
> > * The selftest has been moved to selftests/sgx. Because SGX is an execution
> > environment of its own, it really isn't a great fit with more "standard"
> > x86 tests.
> >
> > The RSA key is now generated on fly and the whole signing process has
> > been made as part of the enclave loader instead of signing the enclave
> > during the compilation time.
> >
> > Finally, the enclave loader loads now the test enclave directly from its
> > ELF file, which means that ELF file does not need to be coverted as raw
> > binary during the build process.
> > * Version the mm_list instead of using on synchronize_mm() when adding new
> > entries. We hold the write lock for the mm_struct, and dup_mm() can thus
> > deadlock with the page reclaimer, which could hold the lock for the old
> > mm_struct.
> > * Disallow mmap(PROT_NONE) from /dev/sgx. Any mapping (e.g. anonymous) can
> > be used to reserve the address range. Now /dev/sgx supports only opaque
> > mappings to the (initialized) enclave data.
> > * Make the vDSO callable directly from C by preserving RBX and taking leaf
> > from RCX.
>
> Hi all,
>
> I've been producing Fedora 32 kernel builds with the SGX patches applied for
> a few of weeks and I've just produced a build with this latest revision[1].
> We've been using these kernels to enable SGX for some of our
> development/test machines.

Thanks a lot!

/Jarkko

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