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From: | Joan Lledó |
Subject: | Re: gnumach RPC: get info about the calling task |
Date: | Sat, 16 Oct 2021 20:27:55 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 |
OK, I'll try with your design El 16/10/21 a les 18:06, Sergey Bugaev ha escrit:
On Sat, Oct 16, 2021 at 6:54 PM Samuel Thibault <samuel.thibault@gnu.org> wrote:Indeed, since it's the region that remembers which protection was allowed, we need a proxy there to enforce them.Right, that's also a good point. max_proection can be less than 7 even if there never was a proxy. That is, one can do vm_map (some_other_task, memobj, VM_PROT_READ, VM_PROT_READ); and expect some_other_task to never get write access to the object. Sergey
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