Jian Jun Chen 46b157008c dm: file lock should be held till all mmap is done ...

Lock should be held till all the mmap operations are done. This is to
avoid the mmap failure when multiple guests are created concurrently.
For example consider the following case in which vm1 and vm2 are
created by acrnd concurrently:
- vm1 is created with 4G+2M memory.
- 4G+2M memory is reserved in hugetlb now and vm1 continues to
  allocate memory for the lowmem without lock held.
- 2G memory is allocated by vm1 for its lowmem, and 2G+2M memory
  is available in hugetlb.
- At this time vm2 is created with 1G+2M memory. It finds that enough
  memory is reserved (2G+2M), so it does not try to reserve more
  memory.
- vm2 allocates some memory for its lowmem/highmem/ovmf.
- vm1 tries to allocate memory for its highmem/ovmf, the allocation
  will fail. vm1 creation failed in this case.

Tracked-On: #3947
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>

2019-10-30 11:37:44 +08:00

..

console.c

DM: remove unused function console_ptr_event

2019-05-24 11:51:00 +08:00

gc.c

dm: gc: clean up assert

2019-07-03 09:40:15 +08:00

hugetlb.c

dm: file lock should be held till all mmap is done

2019-10-30 11:37:44 +08:00

inout.c

dm: refine 'assert' in inout.c and post.c

2019-06-20 08:55:44 +08:00

main.c

dm: Add Oracle subsystem vendor ID

2019-10-11 13:20:19 +08:00

mem.c

dm: refine 'assert' in hugetlb.c and mem.c

2019-06-20 08:55:44 +08:00

mevent.c

dm: refine assert usage

2019-06-24 11:57:05 +08:00

monitor.c

DM: to avoid RTVM shutdown forcely by acrn-dm

2019-09-11 16:43:22 +08:00

mptbl.c

DM: remove unused function mptable_add_oemtbl

2019-05-24 11:51:00 +08:00

pm_vuart.c

DM: add guest vm power manager by vuart

2019-09-11 16:43:22 +08:00

pm.c

DM: register pm ops to monitor

2018-08-02 13:14:03 +08:00

post.c

dm: refine 'assert' in inout.c and post.c

2019-06-20 08:55:44 +08:00

sw_load_bzimage.c

dm: bzimage loader: get linux bzimage setup_sects from header

2019-08-27 09:46:23 +08:00

sw_load_common.c

dm: reserve 16M hole for gvt in e820 table

2019-09-10 09:50:39 +08:00

sw_load_elf.c

dm: close filepointer before exiting acrn_load_elf()

2019-10-17 13:13:06 +08:00

sw_load_ovmf.c

DM: ovmf NV storage writeback support

2019-07-22 11:18:47 +08:00

sw_load_vsbl.c

dm: cleanup 'assert' for guest software loading module

2019-06-20 08:55:44 +08:00

timer.c

dm: vhpet: clean up asserts

2019-07-03 13:19:43 +08:00

vmmapi.c

dm: get vcpu num from hypervisor when create VM

2019-09-24 11:58:45 +08:00

vrpmb.c

dm: cleanup assert in core.c

2019-07-05 09:36:02 +08:00