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Fix sgx_tprotect_rsrv_mem failure on EDMM-enabled platform

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Hui, Chunyang 2023-06-21 07:26:41 +00:00 committed by volcano
parent d4b99fa9c7
commit e574ab65d3
1 changed files with 7 additions and 1 deletions
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8
src/libos/src/vm/vm_perms.rs
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@ -14,7 +14,13 @@ bitflags! {
impl VMPerms { impl VMPerms {
pub fn from_u32(bits: u32) -> Result<VMPerms> { pub fn from_u32(bits: u32) -> Result<VMPerms> {
Self::from_bits(bits).ok_or_else(|| errno!(EINVAL, "invalid bits")) let mut perms = Self::from_bits(bits).ok_or_else(|| errno!(EINVAL, "invalid bits"))?;
// SGX SDK doesn't accept permissions like write or exec without read.
if perms != VMPerms::NONE {
perms |= VMPerms::READ
}
Ok(perms)
} }
pub fn can_read(&self) -> bool { pub fn can_read(&self) -> bool {