Re: [PATCH] host/rootfs: Sandbox Cloud Hypervisor

[Demi Marie Obenour <demiobenour@gmail.com>]

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On 12/6/25 12:29, Alyssa Ross wrote:
> Demi Marie Obenour <demiobenour@gmail.com> writes:
> 
>> It only needs access to a small number of resources.  Unfortunately, it
>> needs access to /dev/vfio right now.  This should be fixed by using file
>> descriptor passing instead.  Also, Cloud Hypervisor should not run as
>> root.
>>
>> Cloud Hypervisor needs to be able to lock memory.  Running in a user
>> namespace prevents it from using CAP_IPC_LOCK.  Therefore, it is
>> necessary to increase RLIMIT_MLOCK before running Cloud Hypervisor.
>>
>> Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
>> ---
>>  host/rootfs/image/usr/bin/run-vmm | 33 ++++++++++++++++++++++++++++++++-
>>  1 file changed, 32 insertions(+), 1 deletion(-)
>>
>> diff --git a/host/rootfs/image/usr/bin/run-vmm b/host/rootfs/image/usr/bin/run-vmm
>> index ba8b59c2677408acdd01c2eda3cf2dd60992d881..24c3d607bfcf6fea6196b61d2941141486d33fd6 100755
>> --- a/host/rootfs/image/usr/bin/run-vmm
>> +++ b/host/rootfs/image/usr/bin/run-vmm
>> @@ -52,5 +52,36 @@ unexport !
>>  fdmove -c 3 0
>>  redirfd -r 0 /dev/null
>>  
>> +s6-softlimit -H -l 18446744073709551615
> 
> My question about the limit from last time is still waiting for an
> answer…

Whoops, I saw that all the other patches had been applied and missed
that this one hadn't been.
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)

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