From: Dave Hansen <dave.hansen@intel.com>
To: Haitao Huang <haitao.huang@linux.intel.com>,
linux-kernel@vger.kernel.org,
Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jarkko Sakkinen <jarkko@kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
linux-sgx@vger.kernel.org,
Sean Christopherson <seanjc@google.com>,
"Huang, Kai" <kai.huang@intel.com>
Subject: Re: [PATCH] x86/sgx: Allow enclaves to use Asynchrounous Exit Notification
Date: Tue, 19 Jul 2022 10:53:24 -0700 [thread overview]
Message-ID: <93960610-d7ff-8c7f-16ae-61191e6ed377@intel.com> (raw)
In-Reply-To: <op.1pasmtstwjvjmi@hhuan26-mobl1.mshome.net>
On 7/14/22 06:19, Haitao Huang wrote:
>
> I think you need add this change in arch/x86/kernel/cpu/sgx/ioctl.c,
> inside sgx_encl_create function:
>
> - encl->attributes_mask = SGX_ATTR_DEBUG | SGX_ATTR_MODE64BIT |
> SGX_ATTR_KSS;
> + encl->attributes_mask = SGX_ATTR_DEBUG | SGX_ATTR_MODE64BIT |
> SGX_ATTR_KSS | SGX_ATTR_ASYNC_EXIT_NOTIFY;
>
> Otherwise, EINIT ioctl fails with this new attribute set in enclave secs.
Makes sense. I'll add it there.
I also just realized we need to update arch/x86/kvm/cpuid.c as well. It
keeps a complete list of guest-available SGX attributes.
next prev parent reply other threads:[~2022-07-19 17:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-05 18:36 Dave Hansen
2022-07-11 2:34 ` Jarkko Sakkinen
2022-07-11 10:46 ` Jarkko Sakkinen
2022-07-19 16:24 ` Dave Hansen
2022-07-14 13:19 ` Haitao Huang
2022-07-19 17:53 ` Dave Hansen [this message]
2022-07-19 17:54 ` Dave Hansen
2022-07-20 1:38 ` Haitao Huang
2022-07-28 7:52 ` Jarkko Sakkinen
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