Commit Graph

6 Commits

Author SHA1 Message Date
Minggui Cao
a89c41dd4c HV: cleanup header files under hypervisor/common
it removes hypervisor.h and just includes needed header files.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-28 14:59:22 +08:00
Tianhua Sun
8478a328a3 HV: return an error code when REQ state mismatch in acrn_insert_request
This issue is triggered when launch fuzzing test.
Fuzzing test thread will call destroy_vm(IC_DESTROY_VM)
to set the guest vCPU state to VCPU_ZOMBIE then VCPU_INIT
and then VCPU_OFFLINE, it will cause post-work can't resume
the guest vCPU and can't changes the state of the
corresponding I/O request slot to REQ_STATE_FREE.

so replace improper use of ASSERT with return error code.

Tracked-On: #2606
Signed-off-by: Tianhua Sun <tianhuax.s.sun@intel.com>
Reviewed-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-02-26 09:23:24 +08:00
Jason Chen CJ
15030f6f2c io_emul: reshuffle io emulation path
This is the following patch after removing pending_pre_work, it make sure
all io emulation is done on its own cpu.

For hv emulated request, it follows the steps:
	hv_emulate_pio->emulate_pio_complete
	hv_emulate_mmio->emulate_mmio_complete

For dm emulated request, it follows the steps:
	acrn_insert_request->dm_emulate_io_complete
while in acrn_insert_request, it could trigger scheduling out then resume by
hcall_notify_ioreq_finish, or busy wait for ioreq completion if polling mode
is enabled.

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Jason Chen CJ
fb41ea5cfb io_emul: remove pending_pre_work
Now we do not need pending_pre_work anymore, as we can make sure IO request
VCPU resume from where it paused.

Now only three fixed points will try to do schedule:
- vcpu_thread: before vm entry, will check reschedule flag and to it if needed
- default_idle: loop check reschedule flag to see if need switch out
- io request: if IO REQ need DM's handle, it will schedule out

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Victor Sun
ec199d9609 HV: add get_sos_vm api
This patch creates a new get_sos_vm() api to replace get_vm_from_vmid(0U)
because VM 0 might not be SOS VM now;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-01-21 18:03:31 +08:00
Mingqiang Chi
de4ab6fdfa hv:modulization for IO Emulation
-- rename io.c to io_emul.c, add io_emul.h
-- rename io_request.c to io_req.c,rename ioreq.h to io_req.h
-- move some APIs declaration from ioreq.h to io_emul.h
   related IO emulation

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
	modified:   ../doc/acrn.doxyfile
	modified:   Makefile
	renamed:    arch/x86/io.c -> arch/x86/io_emul.c
	renamed:    common/io_request.c -> common/io_req.c
	modified:   include/arch/x86/hv_arch.h
	modified:   include/arch/x86/io.h
	new file:   include/arch/x86/io_emul.h
	renamed:    include/arch/x86/ioreq.h -> include/arch/x86/io_req.h
2019-01-21 13:49:54 +08:00