From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: linux-sgx@vger.kernel.org
Subject: Re: [PATCH for_v23 2/9] x86/sgx: Do not EWB SECS if the enclave is dead
Date: Mon, 14 Oct 2019 23:58:30 +0300 [thread overview]
Message-ID: <20191014205830.GS15552@linux.intel.com> (raw)
In-Reply-To: <20191010214301.25669-3-sean.j.christopherson@intel.com>
On Thu, Oct 10, 2019 at 02:42:54PM -0700, Sean Christopherson wrote:
> Don't EWB if the enclave is dead when opportunistically zapping the SECS
> during reclaim as VA pages are freed by sgx_encl_destroy(), i.e.
> sgx_encl_ewb() will consume a bad encl->va_pages if the enclave has been
> destroyed.
>
> Add a comment in sgx_encl_destroy() to explicit call out that it's ok to
> free VA pages.
>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Thank you.
Merged.
/Jarkko
next prev parent reply other threads:[~2019-10-14 20:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-10 21:42 [PATCH for_v23 0/9] x86/sgx: misc page related fixes Sean Christopherson
2019-10-10 21:42 ` [PATCH for_v23 1/9] x86/sgx: WARN once if an enclave is released with unfreed EPC pages Sean Christopherson
2019-10-14 20:31 ` Jarkko Sakkinen
2019-10-14 20:33 ` Jarkko Sakkinen
2019-10-14 23:56 ` Sean Christopherson
2019-10-10 21:42 ` [PATCH for_v23 2/9] x86/sgx: Do not EWB SECS if the enclave is dead Sean Christopherson
2019-10-14 20:58 ` Jarkko Sakkinen [this message]
2019-10-10 21:42 ` [PATCH for_v23 3/9] x86/sgx: Fix a memory leak in sgx_encl_destroy() Sean Christopherson
2019-10-10 22:49 ` Sean Christopherson
2019-10-14 21:00 ` Jarkko Sakkinen
2019-10-14 23:57 ` Sean Christopherson
2019-10-10 21:42 ` [PATCH for_v23 4/9] x86/sgx: WARN on any non-zero return from __eremove() Sean Christopherson
2019-10-10 21:42 ` [PATCH for_v23 5/9] x86/sgx: WARN only once if EREMOVE fails Sean Christopherson
2019-10-10 21:42 ` [PATCH for_v23 6/9] x86/sgx: Split second half of sgx_free_page() to a separate helper Sean Christopherson
2019-10-10 21:42 ` [PATCH for_v23 7/9] x86/sgx: Use the post-reclaim variant of __sgx_free_page() Sean Christopherson
2019-10-10 21:43 ` [PATCH for_v23 8/9] x86/sgx: Don't update free page count if EPC section allocation fails Sean Christopherson
2019-10-10 21:43 ` [PATCH for_v23 9/9] x86/sgx: Reinstate per EPC section free page counts Sean Christopherson
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