[PAL/Linux-SGX] Rename sgx_entry to sgx_do_host_ocall
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pal/src/host/linux-sgx/host_entry.S line 4 at r1 (raw file):
# # - Host-to-enclave normal-context flow (ECALL) -- sgx_ecall() function. There are three ECALLs # currently: ECALL_ENCLAVE_START, ECALL_THREAD_START and ECALL_THREAD_RESET.
I don't see a point of duplicating the ECALL list here, it's easy to get outdated.
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
.cfi_startproc # put entry address in RDX
-> exit target?
Code quote:
entry address
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pal/src/host/linux-sgx/host_entry.S line 4 at r1 (raw file):
Previously, mkow (Michał Kowalczyk) wrote…
I don't see a point of duplicating the ECALL list here, it's easy to get outdated.
Done.
pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
Previously, kailun-qin (Kailun Qin) wrote…
-> exit target?
Done.
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
Previously, dimakuv (Dmitrii Kuvaiskii) wrote…
Done.
Isn't this ECALL exit target? Or OCALL entry?
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
Previously, mkow (Michał Kowalczyk) wrote…
Isn't this ECALL exit target? Or OCALL entry?
Done.
That's not an ECALL exit target -- our ECALLs do not return (except for a special ECALL_THREAD_RESET, but it's a different story).
So here I'm talking about the OCALL-entry rip, i.e. where the enclave code will jump out of the enclave to perform an OCALL.
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
Previously, dimakuv (Dmitrii Kuvaiskii) wrote…
Done.
That's not an ECALL exit target -- our ECALLs do not return (except for a special
ECALL_THREAD_RESET, but it's a different story).So here I'm talking about the OCALL-entry rip, i.e. where the enclave code will jump out of the enclave to perform an OCALL.
Yeah, but isn't the term "exit target" for EEXIT? We mentioned similar things in multiple other places IIRC. Alternatively, what about keeping the original _entry suffix in the label, then the original comment would look fine?
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
Previously, kailun-qin (Kailun Qin) wrote…
Yeah, but isn't the term "exit target" for EEXIT? We mentioned similar things in multiple other places IIRC. Alternatively, what about keeping the original
_entrysuffix in the label, then the original comment would look fine?
Done. Well, I removed the word "entry" :) Is this a compromise for everyone?
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
Previously, dimakuv (Dmitrii Kuvaiskii) wrote…
Done. Well, I removed the word "entry" :) Is this a compromise for everyone?
Thanks :) LGTM
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pal/src/host/linux-sgx/host_entry.S line 27 at r1 (raw file):
That's not an ECALL exit target -- our ECALLs do not return (except for a special
ECALL_THREAD_RESET, but it's a different story).
It kinda is? Doing an OCALL is just a return from the ECALL.
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Jenkins, retest Jenkins-SGX-20.04-apps please (network connectivity issue) |
The file `host_entry.S` contains low-level code that executes ECALL/OCALL/AEX flows in the untrusted runtime of Gramine. Previously, this file contained the label `sgx_entry` that has a misleading name -- it doesn't "enter the SGX enclave" but instead it "performs an OCALL on the host", i.e. executes the syscall on the host. This commit renames this label to avoid confusion. Also, some explanations are added. Signed-off-by: Dmitrii Kuvaiskii <[email protected]>
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Description of the changes
The file
host_entry.Scontains low-level code that executes ECALL/OCALL/AEX flows in the untrusted runtime of Gramine. Previously, this file contained the labelsgx_entrythat has a misleading name -- it doesn't "enter the SGX enclave" but instead it "performs an OCALL on the host", i.e. executes the syscall on the host. This commit renames this label to avoid confusion. Also, some explanations are added.Requested by @mkow while reviewing #1857.
How to test this PR?
No functional changes.
This change is