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* [PATCH 0/7] x86/sgx: Clean up and enhance add pages ioctl
@ 2019-06-05 19:48 Sean Christopherson
  2019-06-05 19:48 ` [PATCH 1/7] x86/sgx: Remove dead code to handle non-existent IOR ioctl Sean Christopherson
                   ` (7 more replies)
  0 siblings, 8 replies; 33+ messages in thread
From: Sean Christopherson @ 2019-06-05 19:48 UTC (permalink / raw)
  To: Jarkko Sakkinen
  Cc: linux-sgx, Dave Hansen, Cedric Xing, Andy Lutomirski,
	Jethro Beekman, Dr . Greg Wettstein

This series is intended to be included in v21 of Jarkko's SGX series and
applies on Jarkko's current master:

  dfc89a83b5bc ("docs: x86/sgx: Document the enclave API")

The primary goal of the series is to tweak the ioctl for adding pages to
an enclave so that it is somewhat extensible, e.g. add a flags field that
can be reused for access control integration and SGX2/EAUG, and add a size
field so that multiple pages can be added in a single call (batching EADD
has been mentioned at various times in the past).

The secondary goal is to improve the performance of building enclaves.
Handling multiple pages in a single call helps somewhat, but the real win
(for some enclaves) is using the kernel's zero page as the source for EADD
when possible.

Sean Christopherson (7):
  x86/sgx: Remove dead code to handle non-existent IOR ioctl
  x86/sgx: Remove unnecessary @cmd parameter from ioctl helpers
  x86/sgx: Let ioctl helpers do copy to/from user
  x86/sgx: Allow userspace to add multiple pages in single ioctl()
  x86/sgx: Add flag to zero added region instead of copying from source
  x86/sgx: Use the actual zero page as the source when adding zero pages
  x86/sgx: Add a reserved field to sgx_enclave_add_region to drop
    'packed'

 Documentation/x86/sgx/3.API.rst        |   2 +-
 arch/x86/include/uapi/asm/sgx.h        |  30 +--
 arch/x86/kernel/cpu/sgx/driver/ioctl.c | 252 +++++++++++++++----------
 3 files changed, 171 insertions(+), 113 deletions(-)

-- 
2.21.0


^ permalink raw reply	[flat|nested] 33+ messages in thread

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Thread overview: 33+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-06-05 19:48 [PATCH 0/7] x86/sgx: Clean up and enhance add pages ioctl Sean Christopherson
2019-06-05 19:48 ` [PATCH 1/7] x86/sgx: Remove dead code to handle non-existent IOR ioctl Sean Christopherson
2019-06-05 19:48 ` [PATCH 2/7] x86/sgx: Remove unnecessary @cmd parameter from ioctl helpers Sean Christopherson
2019-06-05 19:48 ` [PATCH 3/7] x86/sgx: Let ioctl helpers do copy to/from user Sean Christopherson
2019-06-05 19:48 ` [PATCH 4/7] x86/sgx: Allow userspace to add multiple pages in single ioctl() Sean Christopherson
2019-06-06 15:47   ` Jarkko Sakkinen
2019-06-13  0:43   ` Jethro Beekman
2019-06-13 16:51     ` Sean Christopherson
2019-06-13 19:05       ` Andy Lutomirski
2019-06-13 19:15         ` Sean Christopherson
2019-06-13 19:45       ` Xing, Cedric
2019-06-05 19:48 ` [PATCH 5/7] x86/sgx: Add flag to zero added region instead of copying from source Sean Christopherson
2019-06-06 17:20   ` Andy Lutomirski
2019-06-06 17:32     ` Sean Christopherson
2019-06-07 19:32       ` Andy Lutomirski
2019-06-10 17:06         ` Jarkko Sakkinen
2019-06-10 18:09         ` Xing, Cedric
2019-06-10 18:41           ` Sean Christopherson
2019-06-10 18:53         ` Sean Christopherson
2019-06-13  0:38           ` Jethro Beekman
2019-06-13 13:46             ` Sean Christopherson
2019-06-13 16:16               ` Andy Lutomirski
2019-06-13 16:54                 ` Sean Christopherson
2019-06-05 19:48 ` [PATCH 6/7] x86/sgx: Use the actual zero page as the source when adding zero pages Sean Christopherson
2019-06-05 19:48 ` [PATCH 7/7] x86/sgx: Add a reserved field to sgx_enclave_add_region to drop 'packed' Sean Christopherson
2019-06-05 19:59   ` Dave Hansen
2019-06-05 20:00     ` Andy Lutomirski
2019-06-12 15:14   ` Jarkko Sakkinen
2019-06-12 15:23     ` Sean Christopherson
2019-06-13  0:44       ` Jethro Beekman
2019-06-13 15:38       ` Jarkko Sakkinen
2019-06-12 15:16 ` [PATCH 0/7] x86/sgx: Clean up and enhance add pages ioctl Jarkko Sakkinen
2019-06-12 18:14   ` Jarkko Sakkinen

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