From: Sean Christopherson <seanjc@google.com>
To: Kai Huang <kai.huang@intel.com>
Cc: "linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
Reinette Chatre <reinette.chatre@intel.com>,
"jarkko@kernel.org" <jarkko@kernel.org>,
Vijay Dhanraj <vijay.dhanraj@intel.com>,
"haitao.huang@linux.intel.com" <haitao.huang@linux.intel.com>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>
Subject: Re: [RFC PATCH v4 2/4] x86/sgx: Implement support for MADV_WILLNEED
Date: Thu, 29 Jun 2023 17:14:39 -0700 [thread overview]
Message-ID: <ZJ4eb8wGbLa06+wX@google.com> (raw)
In-Reply-To: <50913a11353b17861c13ebb53305dd370c8b8b43.camel@intel.com>
On Thu, Jun 29, 2023, Kai Huang wrote:
> But SGX usrespace needs a *exact* address. MAP_FIXED is the only ABI can
> guarantee this.
Yes, but you're assuming that userspace is sane and robust. It's *very* possible
that there exists userspace that doesn't specify MAP_FIXED, but works anyways
because their setup doesn't cause conflicts and so the hint is sufficient.
next prev parent reply other threads:[~2023-06-30 0:14 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-28 4:55 [RFC PATCH v4 0/4] x86/sgx: implement support for MADV_WILLNEED Haitao Huang
2023-01-28 4:55 ` [RFC PATCH v4 1/4] x86/sgx: Export sgx_encl_eaug_page Haitao Huang
2023-01-28 4:55 ` [RFC PATCH v4 2/4] x86/sgx: Implement support for MADV_WILLNEED Haitao Huang
2023-01-28 4:55 ` [RFC PATCH v4 3/4] selftests/sgx: add len field for EACCEPT op Haitao Huang
2023-01-28 4:55 ` [RFC PATCH v4 4/4] selftests/sgx: Add test for madvise(..., WILLNEED) Haitao Huang
2023-02-07 23:30 ` Jarkko Sakkinen
2023-02-15 2:38 ` Huang, Kai
2023-02-15 4:42 ` Haitao Huang
2023-02-15 8:46 ` Huang, Kai
2023-02-17 22:29 ` jarkko
2023-02-07 23:29 ` [RFC PATCH v4 3/4] selftests/sgx: add len field for EACCEPT op Jarkko Sakkinen
2023-02-07 23:28 ` [RFC PATCH v4 2/4] x86/sgx: Implement support for MADV_WILLNEED Jarkko Sakkinen
2023-02-14 9:47 ` Huang, Kai
2023-02-14 19:18 ` Haitao Huang
2023-02-14 20:54 ` Huang, Kai
2023-02-14 21:42 ` Haitao Huang
2023-02-14 22:36 ` Huang, Kai
2023-02-15 3:59 ` Haitao Huang
2023-02-15 8:51 ` Huang, Kai
2023-02-15 15:42 ` Haitao Huang
2023-02-16 7:53 ` Huang, Kai
2023-02-16 17:12 ` Haitao Huang
2023-02-17 22:32 ` jarkko
2023-02-17 23:03 ` Haitao Huang
2023-02-21 22:10 ` jarkko
2023-02-22 1:37 ` Haitao Huang
2023-03-07 23:32 ` Huang, Kai
2023-03-09 0:50 ` Haitao Huang
2023-03-09 11:31 ` Huang, Kai
2023-03-14 14:54 ` Haitao Huang
2023-03-19 13:26 ` jarkko
2023-03-20 9:36 ` Huang, Kai
2023-03-20 14:04 ` jarkko
2023-05-27 0:32 ` Haitao Huang
2023-06-06 4:11 ` Huang, Kai
2023-06-07 16:59 ` Haitao Huang
2023-06-16 3:49 ` Huang, Kai
2023-06-16 22:05 ` Sean Christopherson
2023-06-19 11:17 ` Huang, Kai
2023-06-22 22:01 ` Sean Christopherson
2023-06-22 23:21 ` Huang, Kai
2023-06-26 22:28 ` Sean Christopherson
2023-06-27 11:43 ` Huang, Kai
2023-06-27 14:50 ` Sean Christopherson
2023-06-28 9:37 ` Huang, Kai
2023-06-28 14:57 ` Sean Christopherson
2023-06-29 3:10 ` Huang, Kai
2023-06-29 14:23 ` Sean Christopherson
2023-06-29 23:29 ` Huang, Kai
2023-06-30 0:14 ` Sean Christopherson [this message]
2023-06-30 0:56 ` Huang, Kai
2023-06-30 1:54 ` Jarkko Sakkinen
2023-06-30 1:57 ` Jarkko Sakkinen
2023-06-30 4:26 ` Huang, Kai
2023-06-30 9:35 ` Jarkko Sakkinen
2023-03-12 1:25 ` jarkko
2023-03-12 22:25 ` Huang, Kai
2023-02-17 22:07 ` jarkko
2023-02-17 21:50 ` jarkko
2023-02-07 23:26 ` [RFC PATCH v4 1/4] x86/sgx: Export sgx_encl_eaug_page Jarkko Sakkinen
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