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From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: x86@kernel.org, linux-sgx@vger.kernel.org, jarkko@kernel.org,
	dave.hansen@linux.intel.com, yang.zhong@intel.com
Subject: [RFC/RFT PATCH 0/2] x86: sgx_vepc: implement ioctl to EREMOVE all pages
Date: Mon, 13 Sep 2021 09:11:51 -0400	[thread overview]
Message-ID: <20210913131153.1202354-1-pbonzini@redhat.com> (raw)

Based on discussions from the previous week(end), this series implements
a ioctl that performs EREMOVE on all pages mapped by a /dev/sgx_vepc
file descriptor.  Other possibilities, such as closing and reopening
the device, are racy.

The patches are untested, but I am posting them because they are simple
and so that Yang Zhong can try using them in QEMU.

Paolo

Paolo Bonzini (2):
  x86: sgx_vepc: extract sgx_vepc_remove_page
  x86: sgx_vepc: implement SGX_IOC_VEPC_REMOVE ioctl

 arch/x86/include/uapi/asm/sgx.h |  2 ++
 arch/x86/kernel/cpu/sgx/virt.c  | 48 ++++++++++++++++++++++++++++++---
 2 files changed, 47 insertions(+), 3 deletions(-)

-- 
2.27.0


             reply	other threads:[~2021-09-13 13:12 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-13 13:11 Paolo Bonzini [this message]
2021-09-13 13:11 ` [PATCH 1/2] x86: sgx_vepc: extract sgx_vepc_remove_page Paolo Bonzini
2021-09-13 14:05   ` Dave Hansen
2021-09-13 14:24     ` Paolo Bonzini
2021-09-13 14:55       ` Dave Hansen
2021-09-13 15:14         ` Paolo Bonzini
2021-09-13 15:29           ` Dave Hansen
2021-09-13 18:35             ` Paolo Bonzini
2021-09-13 19:25               ` Dave Hansen
2021-09-13 21:16                 ` Jarkko Sakkinen
2021-09-13 21:15               ` Jarkko Sakkinen
2021-09-13 21:13           ` Jarkko Sakkinen
2021-09-14  5:36             ` Paolo Bonzini
2021-09-14 16:05               ` Jarkko Sakkinen
2021-09-13 21:12         ` Jarkko Sakkinen
2021-09-13 21:00       ` Jarkko Sakkinen
2021-09-13 20:33   ` Jarkko Sakkinen
2021-09-13 13:11 ` [PATCH 2/2] x86: sgx_vepc: implement SGX_IOC_VEPC_REMOVE ioctl Paolo Bonzini
2021-09-13 19:33   ` Dave Hansen
2021-09-13 21:11     ` Sean Christopherson
2021-09-13 22:43       ` Dave Hansen
2021-09-14 10:55   ` Kai Huang
2021-09-14  7:10 ` [RFC/RFT PATCH 0/2] x86: sgx_vepc: implement ioctl to EREMOVE all pages Yang Zhong
2021-09-14 10:19   ` Paolo Bonzini
2021-09-14 16:42     ` Jarkko Sakkinen
2021-09-14 17:07       ` Paolo Bonzini
2021-09-14 17:40         ` Jarkko Sakkinen
2021-09-14 17:44           ` Jarkko Sakkinen
2021-09-15  8:28     ` Yang Zhong

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