Messages in this thread | | | Subject | Re: [PATCH 1/2] x86: sgx_vepc: extract sgx_vepc_remove_page | From | Jarkko Sakkinen <> | Date | Mon, 13 Sep 2021 23:33:57 +0300 |
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On Mon, 2021-09-13 at 09:11 -0400, Paolo Bonzini wrote: > Windows expects all pages to be in uninitialized state on startup. > In order to implement this, we will need 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.
So what makes it racy, and what do mean by racy in this case?
I.e. you have to do open() and mmap(), and munmap() + close() for removal. Depending on situation that is racy or not...
And is "Windows" more precisely a "Windows guest running in Linux QEMU host"? It's ambiguous..
/Jarkko
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