Messages in this thread | | | Subject | Re: [PATCH v3 4/5] x86/sgx: Allows ioctl PROVISION to execute before CREATE | From | Tianjia Zhang <> | Date | Mon, 1 Feb 2021 20:55:51 +0800 |
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On 1/30/21 9:26 PM, Jarkko Sakkinen wrote: > On Sun, Jan 24, 2021 at 02:29:06PM +0800, Tianjia Zhang wrote: >> In the function sgx_create_enclave(), the direct assignment >> operation of attributes_mask determines that the ioctl PROVISION >> operation must be executed after the ioctl CREATE operation, >> which will limit the flexibility of sgx developers. >> >> This patch takes the assignment of `attributes_mask` from the >> function sgx_create_enclave() has been moved to the function >> sgx_open() to avoid this restriction. >> >> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> > > The commit message should explicit that the API behaviour changes > as the result. Please don't use hyphens in quoting. > > /Jarkko >
Will be improved in the next version.
Best regards, Tianjia
>> --- >> arch/x86/kernel/cpu/sgx/driver.c | 1 + >> arch/x86/kernel/cpu/sgx/ioctl.c | 1 - >> 2 files changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/x86/kernel/cpu/sgx/driver.c b/arch/x86/kernel/cpu/sgx/driver.c >> index f2eac41bb4ff..fba0d0bfe976 100644 >> --- a/arch/x86/kernel/cpu/sgx/driver.c >> +++ b/arch/x86/kernel/cpu/sgx/driver.c >> @@ -36,6 +36,7 @@ static int sgx_open(struct inode *inode, struct file *file) >> return ret; >> } >> >> + encl->attributes_mask = SGX_ATTR_DEBUG | SGX_ATTR_MODE64BIT | SGX_ATTR_KSS; >> file->private_data = encl; >> >> return 0; >> diff --git a/arch/x86/kernel/cpu/sgx/ioctl.c b/arch/x86/kernel/cpu/sgx/ioctl.c >> index 90a5caf76939..1c6ecf9fbeff 100644 >> --- a/arch/x86/kernel/cpu/sgx/ioctl.c >> +++ b/arch/x86/kernel/cpu/sgx/ioctl.c >> @@ -109,7 +109,6 @@ static int sgx_encl_create(struct sgx_encl *encl, struct sgx_secs *secs) >> encl->base = secs->base; >> encl->size = secs->size; >> encl->attributes = secs->attributes; >> - encl->attributes_mask = SGX_ATTR_DEBUG | SGX_ATTR_MODE64BIT | SGX_ATTR_KSS; >> >> /* Set only after completion, as encl->lock has not been taken. */ >> set_bit(SGX_ENCL_CREATED, &encl->flags); >> -- >> 2.19.1.3.ge56e4f7 >> >>
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