Commit Graph

864 Commits

Author SHA1 Message Date
Rafal Wojtczuk
c411519220 qmemman: do not trim the mem-set value too much
We used to mem-set the domain to 0.995*calculated_value; 5 promils of 4GB
is ca 19MB, and it is too visible. Use 0.999 instead of 0.995
2010-09-16 16:40:09 +02:00
Rafal Wojtczuk
eea01fba3b qmemman: in is_balance_req_significant(), account for Xen free memory 2010-09-16 16:00:07 +02:00
Rafal Wojtczuk
e476531b0e Leave XEN_FREE_MEM_LEFT of Xen free memory.
Needed for driver domain, to be able to get contiguous memory for
its drivers.
2010-09-16 15:57:11 +02:00
Joanna Rutkowska
0f1700ef3d Merge branch 'comment1' of git://qubes-os.org/rafal/core
Conflicts:
	dom0/restore/qubes_restore.c
2010-09-16 15:55:35 +02:00
Joanna Rutkowska
70f8a7401c Make 'make clean' clean all the object files 2010-09-15 15:36:04 +02:00
Joanna Rutkowska
ec988f9385 core-appvm.spec: create 'user' user in %pre instead of in %post
... otherwsie rpm -i throws an error when trying to set permissions for
/home_volatile/user, as the user 'user' doesn't exist when the %files section
is being processed during rpm install (if this is a first install of the rpm).
2010-09-15 15:33:09 +02:00
Joanna Rutkowska
6116d30c25 version 1.3.0 2010-09-13 17:21:26 +02:00
Joanna Rutkowska
9b8c018bc2 Merge branch 'qmemman' of git://qubes-os.org/rafal/core 2010-09-13 15:05:13 +02:00
Rafal Wojtczuk
d91c03358c qmemman: save a syscall in meminfo-writer via use of "pread" 2010-09-10 14:53:41 +02:00
Rafal Wojtczuk
6736081581 Compile meminfo-writer with -O3 2010-09-10 11:38:06 +02:00
Rafal Wojtczuk
0c1f21a28e qmemman: when a AppVM is low on memory, allow small adjustments
A small AppVM (say, with 100MB total) can go below prefmem, and
still not be assigned memory, because of the MIN_TOTAL_MEMORY_TRANSFER
threshold.
So, if AppVM is below prefmem, allow for smaller mem-sets.
2010-09-10 11:35:30 +02:00
Rafal Wojtczuk
f6e3607d2d qmemman: offload some processing to meminfo-writer
Make meminfo-writer compute used memory, and report to qmemman only if
it has changed significantly enough. As it is written in C, its code is
much faster that qmemman-server; also in the idle case, it saves on xenstore
communication overhead. Allows to send updates up to 10 times per second,
with CPU load on the VM below 0.1%.
2010-09-09 17:51:53 +02:00
Rafal Wojtczuk
51e14fc8bb qmemman: trigger do_balance() on receiving /proc/meminfo data 2010-09-09 12:36:18 +02:00
Rafal Wojtczuk
f4e46b63a4 qmemman: in client code, set FD_CLOEXEC on qmmemman.socket 2010-09-09 12:33:48 +02:00
Rafal Wojtczuk
7545789a26 qmemman: now parse_meminfo takes a single argument 2010-09-09 11:30:02 +02:00
Rafal Wojtczuk
9c609a23bf qmemman: move /proc/meminfo parsing to qmemman_algo
Just cosmetics, to make code layout more coherent.
2010-09-09 11:24:04 +02:00
Rafal Wojtczuk
24b3baf063 qmemman: use 'Memtotal' from /proc/meminfo to calculate used memory
Previously, memory_actual (retrieved from xen) was used; it can be inconsistent.
'Memtotal' can be spoofed, but anyway we rely on other fields from /proc/meminfo.
2010-09-09 11:08:20 +02:00
Rafal Wojtczuk
5a33ed71ce qmemman: use the fact that balloon driver retries
Apparently even if there is not enough xen memory to balloon up,
balloon driver will try to fulfill the request later, when
some memory is freed. Thus, in do_balloon, do not limit mem_set
to the available memory.
2010-09-09 10:36:13 +02:00
Rafal Wojtczuk
87d1e973c7 qmemman: print balance stats only when updating 2010-09-09 10:29:35 +02:00
Rafal Wojtczuk
8d377d19dc DVM: added missing fix_savefile_all 2010-09-07 17:45:52 +02:00
Rafal Wojtczuk
6472e8c926 DVM: fix savefile to contain ip address
needed for routed networking
2010-09-07 17:36:28 +02:00
Rafal Wojtczuk
2dd9bab23a DVM: add --dvm option to qvm-start
Currently it only forces to use a fake IP address, which can be
replaced during restore time.
2010-09-07 16:15:24 +02:00
Rafal Wojtczuk
5be12f8459 qmemman: switch off memory balancing when doing xm save
Apparently, it interferes:
INFO (XendCheckpoint:417) ERROR Internal error: Could not get vcpu context
INFO (XendCheckpoint:417) ERROR Internal error: Failed to map/save the p2m frame list
2010-09-07 16:00:14 +02:00
Rafal Wojtczuk
1239643c73 Tell Network Manager to keep hands off vif interfaces
...somehow indirectly, by specifying the mac; unfortunately I do not
see any other way.
2010-09-07 13:18:08 +02:00
Rafal Wojtczuk
11abef3439 qmemman: xc.domain_set_target_mem can throw exceptions, too 2010-09-07 13:10:48 +02:00
Rafal Wojtczuk
a013973806 Use vif-route-qubes. 2010-09-06 17:24:12 +02:00
Rafal Wojtczuk
31e7e96056 Switch to routed VM network (instead of bridging)
No headache from layer 2 attacks.
2010-09-06 17:07:42 +02:00
Rafal Wojtczuk
64e8013dc2 Unify dom0 and netvm sysconfig/iptables
Plus:
- dedicated chain for DNAT to nameservers
- prevent intervm networking. Can be conveniently overriden in necessary cases
by inserting ACCEPT clauses (per VM, probably) at the top of FORWARD
2010-09-06 15:10:01 +02:00
Rafal Wojtczuk
22df517425 qmemman: detect domain list change by watching /vm, not /local/domain
The latter triggers on every memory/meminfo key update, which needlessly
adds xenstore requests.
2010-09-06 10:46:36 +02:00
Rafal Wojtczuk
1c337db989 qmemman: make meminfo-writer a C program 2010-09-03 16:23:09 +02:00
Rafal Wojtczuk
7dcb7cb196 qmemman: don't use xenapi, use hypercalls to do mem-set 2010-09-03 16:19:48 +02:00
Rafal Wojtczuk
10408d61db qmemman: when low on memory, do not make a VM go below prefmem
Now the balance() has two different cases: enough memory and low_on_memory.
In the former, distribute memory proportianally; in the former, dont do this, as this
makes a VM go below prefmem.
2010-09-01 12:40:02 +02:00
Rafal Wojtczuk
80771763cf qmemman: limit total memory transfer, not each one 2010-09-01 10:39:39 +02:00
Rafal Wojtczuk
c66e0848f3 qmemman: limit domain memory to 2G to workaround for xen xml-rpc limitation
File "/usr/lib64/python2.6/xmlrpclib.py", line 710, in dump_int
    raise OverflowError, "int exceeds XML-RPC limits"
OverflowError: int exceeds XML-RPC limits
How crappy.
2010-08-31 16:19:01 +02:00
Rafal Wojtczuk
de2619fbed qmemman: wrap xenapi.memset within try/except
It can fail e.g. when a domain is being shutdown with a pretty
message like
 File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 1322, in setMemoryTarget
    (target * 1024))
Error: (1, 'Operation not permitted')
2010-08-31 15:53:24 +02:00
Rafal Wojtczuk
eb6755e93c qmemman: fix locking
We want balance() to wait on a lock even after balloon() has finished,
until socket client has closed.
2010-08-30 14:50:48 +02:00
Rafal Wojtczuk
2eba4c1c15 I will test before commit. I will test before commit. I will... 2010-08-30 12:01:42 +02:00
Rafal Wojtczuk
f3561b7aad Fix restore completion detection in appvm/qubes_core 2010-08-30 11:43:30 +02:00
Rafal Wojtczuk
62487c0f1e Memory management across VMs, first release 2010-08-30 11:40:19 +02:00
Rafal Wojtczuk
8a022d7904 core.git/dom0/pendrive_swapper/README 2010-08-03 09:03:32 +02:00
Rafal Wojtczuk
cee9d6b4d6 Added comments to nonobvious code fragments 2010-08-03 07:12:59 +02:00
Joanna Rutkowska
8317c2ca18 appvm/qubes_add_pendrive_script: set HOME, and pass -M to mimeopen 2010-07-30 16:01:58 +02:00
Joanna Rutkowska
f4198057f8 appvm/qubes_core: do not set hostname for DispVM 2010-07-30 16:01:15 +02:00
Joanna Rutkowska
4d26334709 dom0/init.d/qubes_core: set Dom0 mem to 1600M 2010-07-30 16:00:18 +02:00
Joanna Rutkowska
557984f4b9 minor ident fixes 2010-07-30 15:59:43 +02:00
Joanna Rutkowska
0f378864fe version 1.2.2 2010-07-27 16:08:09 +02:00
Rafal Wojtczuk
4cf0a61858 Before restoring DVM, check for available xen memory
As we already do xm mem-set 0 800 in qubes_core, this is a
correct check. Now, there should be no errors from qubes_restore
in normal circumstances.
2010-07-27 16:08:09 +02:00
Rafal Wojtczuk
a5f11913be xenlinux netvm requires modprobe netbk 2010-07-27 16:08:09 +02:00
Joanna Rutkowska
68903cd9d4 appvm/init.d/qubes_core: a few more comments and cleanup 2010-07-27 12:52:26 +02:00
Joanna Rutkowska
c6cd630acf appvm/init.d/qubes_core: make /home avilable for DispVM template 2010-07-27 12:51:54 +02:00