This patch addes the debugexit function to DM. If it's enabled
by DM cmdline (by add --debugexit), the guest could write a
32bit value to port 0xF4 to trigger guest shutdown.
Tracked-on: #1465
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This patch adds a simple 32bit static elf binary loader to acrn DM.
And if the elf binary follow multiboot protocol, only memory info
will be included in multiboot info.
Tracked-On: #1465
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
We will use timerfd and epoll mechanism to emulate kinds of timers like
PIT/RTC/WDT/PMTIMER/... in device model under Linux. The api is unified
in this patch.
Compare with sigevent mechanism, timerfd has a advantage that it could
avoid race condition on resource accessing in the async sigev thread.
change log:
v1 -> v2: add NULL pointer check for function parameter;
v2 -> v3: rename file name of vtimer.* to timer.*;
rename structure name of vtimer to acrn_timer;
add read() in timer handler to consume I/O event;
v3 -> v4: replace bool clock_realtime with int clockid;
close acrn_timer->fd properly;
Tracked-On: #1489
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
Add ioctl parameter and API to set vcpu regs. The guest software
loader will call this API to set guest vcpu registers.
Tracked-On: #1231
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Added edge triggered read and write events.
For mei mediator we need to detect changes in
sysfs files, it's not possible to do it via
level based triggers as the files are always
readable.
Tracked-On: #1417
Change-Id: Ib360ad31f30afa576b2b7b833f9bb139c269a030
Signed-off-by: Aviad Nissel <aviad.nissel@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
The vmname variable is missing 'export',
so it's probably only shadowing the already
exported variable from devicemodel/include/dm.h
Tracked-On: #1415
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
An inline function defined in headers must be static
otherwise compilation may fail, depending on gcc optimization level,
particularly if dropping -O2 from the Makefile dm doesn't
compile reporting unresolved symbols.
Tracked-On: #1406
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
vPIT is used as a source of system timer by UEFI (e.g. OVMF).
This is ported from Bhyve, with a few changes:
- move to user space, using POSIX timer
- support timer mode 3
- improve the emulation of OUT and STATUS byte
- improve the emulation of counter behavior
- improve the emulation of CE update in periodic mode
- treat CR == 0 as 0x10000
Origin: FreeBSD
License: BSD-3-Clause
URL: https://svnweb.freebsd.org/
commit: 283291
Purpose: Adding vPIT support.
Maintained-by: External
Tracked-On: #1392
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
According to PCI spec 3.0 section 6.2.2 "Device Control", guest
could write the command register to control device response to
io/mem access.
The origial code register/unregister the memory range which is
not suitable because it can't handle the sequence:
1. disble the device response to specific memory range
2. reboot guest (DM will try to free the memory range which
was freed in step 1 already)
Tracked-On: #1277
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
Some firmware (e.g. UEFI) uses RTC CMOS to fetch the system's memory
configuration. Put lowmem / highmem info in the designated area.
This is a port of Bhyve vRTC's user-space logic.
v1 -> v2:
* move KB/MB/GB to macros.h
* move nvram offset definitions to rtc.h
Tracked-On: #1390
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This patch adds the vhost support to the device model virtio. A vhost
proxy is implemented based on the virtio framework and vhost char dev.
Key data structures and external interfaces are implemented in this
patch.
Tracked-On: #1329
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
Some virtio ring structures and virtio feature bits are using the
same name/definition as those in kernel header files(linux/
virtio_ring.h, linux/virtio_config.h). Kernel header files must
be included to perform ioctls to support vhost. There are
compiling errors due to duplicated definitions. In this patch
the following renamings are done:
VRING_DESC_F_NEXT -> ACRN_VRING_DESC_F_NEXT
VRING_DESC_F_WRITE -> ACRN_VRING_DESC_F_WRITE
VRING_DESC_F_INDIRECT -> ACRN_VRING_DESC_F_INDIRECT
VRING_AVAIL_F_NO_INTERRUPT -> ACRN_VRING_AVAIL_F_NO_INTERRUPT
VRING_USED_F_NO_NOTIFY -> ACRN_VRING_USED_F_NO_NOTIFY
VIRTIO_F_NOTIFY_ON_EMPTY -> ACRN_VIRTIO_F_NOTIFY_ON_EMPTY
VIRTIO_RING_F_INDIRECT_DESC -> ACRN_VIRTIO_RING_F_INDIRECT_DESC
VIRTIO_RING_F_EVENT_IDX -> ACRN_VIRTIO_RING_F_EVENT_IDX
VIRTIO_F_VERSION_1 -> ACRN_VIRTIO_F_VERSION_1
vring_avail -> virtio_vring_avail
vring_used -> virtio_vring_used
vring_size -> virtio_vring_size
Tracked-On: #1329
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This patch depends on a vhm patch merged, "vhm: setup ioreq shared buf
in IC_CREATE_VM ioctl". We intend to combine VM creating and ioreq
shared page setup into one step. For compatibility issue, we need follow
the patch dependency to merge accordingly.
This patch also drops vm_open/vm_close which will be intergrated into
vm_create/vm_destroy.
Tracked-On: #1330
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
ioeventfd and irqfd support for vhm was introduced in kernel vhm module.
We provide the interfaces of them for DM users.
Tracked-On: #1329
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This patch is for "interrupt storm mitigation", used to reduce
the effect on SOS if an "interrupt storm" happens in UOS.
Add a monitor thread to get UOS pass-through devices interrupt
freqency data; currently, if "interrupt storm" happens, it'll
send a command to delay interrupt injection to UOS for some time.
The parameters: interrupt storm threshold and delay time can be
adjusted according differt HW configure and use case.
Tracked-On: #866
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Flat Mode for hub emulation means DM emulates USB devices under hub but
hide hub itself. Under this design the Guest OS cannot see any emulated
hub. So in the perspective of Guest OS, all the emulated devices are
under root hub.
This patch is used to enable feature as mentioned above. And please NOTE,
it is the initial version of hub flat Mode hub emulation, there are one
limitation: only one physical hub is supported. If second physical hub is
connected, the connect and disconnect behavior in second hub may affect
the function of first emulated hub.
The USB HUB device model should be the final long term solution, but it is
very complex. Use flat mode HUB emulation as the short term solution first
to support some USB touch devices which integrated internal HUB.
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
Tracked-On: #1243
This patch implements RTC feature that UOS can set RTC wakeup timer
to IOC firmware with a specific time before enter S3/S5. IOC mediator
also needs to indicate RTC wakeup reason to UOS after exit S3/S5.
Tracked-On: #1213
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
The whole vmctx will be cleared during cold reset.
cmos data should not be cleared during cold reset.
Move cmos data out of vmctx.
Tracked-On: #1118
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
CMOS offset from 0x20 to 0x9F is used to store rpmb key information.
vsbl loader will init vrpmb key in CMOS when boot/reboot.
vsbl loader will not init vrpmb key during S3 resume.
vsbl will read vrpmb key via CMOS interface.
After reading, the key value is cleared in CMOS. So the key can only be
read once until next boot.
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
A new ioctl is introduced in VBS-K to issue reset command to kernel
VBS-K driver. This is used to support VBS-K S3. When FE enters S3
reset command is sent to device model. Backend driver in device model
should use this ioctl to inform the VBS-K drvier in kernel.
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Shuo Liu <shuo.a.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
RPMB frontend driver in UOS kernel has fixed unstable issue,
which requires BE for update as well. E.g. structure adjustment,
definition modification and so on.
Signed-off-by: Deng Wei <wei.a.deng@intel.com>
Signed-off-by: Huang Yang <yang.huang@intel.com>
Acked-by: Zhu Bing <bing.zhu@intel.com>
Currently the maximum number of bus and port for xHCI are
both set to 255, it is theoretically possible but in fact
not neccessary. This patch changes those two values to be
more proper: 4 buses and 20 ports.
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
Current design cannot get physical USB device information without
the creation of pci_xhci_dev_emu. This brings some difficulties in
certain situations, hence struct usb_native_devinfo is introduced
to describe neccessary information to solve this trouble.
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
1. support "writeback" and "writethru" mode toggling for virtio-blk
conditionally. When starting DM with "writethru" parameter in
virtio-blk, guest OS could not toggle cache mode. When starting DM
with "writeback" parameter in virtio-blk, guest OS could toggle
cache mode.
------------------------------
DM cmdline | toggle support
------------+-----------------
writeback | yes
writethru | no
------------------------------
2. To toggle cache mode, run below command in guest OS:
echo "write back" > /sys/devices/xxx/vdx/cache_type
OR
echo "write through" > /sys/devices/xxx/vdx/cache_type
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Reviewed-by: Shuo Liu <shuo.a.liu@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
currently, each virtio device has their own virtio_ops implementation.
Take virtio-blk for example:
static struct virtio_ops virtio_blk_ops = {
"virtio_blk",
1,
sizeof(struct virtio_blk_config),
virtio_blk_reset,
virtio_blk_notify,
virtio_blk_cfgread,
virtio_blk_cfgwrite,
NULL,
NULL,
VIRTIO_BLK_S_HOSTCAPS,
};
If start DM with two virtio-blk, this global variable will be
assigined to two virtio-blk instances. Changing hv_caps for one
instance will affect others. But different instances may need
different capabilities.
To support this requirement, we suggest to move hv_caps to
virtio_base structure, and each instance can return their own
capabilities.
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This is the counterpart in DM to the VHM request state update in the
hypervisor. Major changes include:
* Remove accesses to the obsolete 'valid' member.
* Access the 'processed' member using atomic operations.
* Sync the documentation on vhm_request.
In addition, the new state transition also requires a VHM request to be always
handled properly, as there is no 'FAILED' state any more. Instead of crashing
the device model (and thus the UOS as well), the device model should return all
1s or ignore the request when it is to load from or store to an invalid address,
respectively.
Note: there is an issue in vm_system_reset() and vm_suspend_resume() where
completed VHM requests are not properly notified, causing the hypervisor to
complain as it sees uncompleted requests while trying to create a new one. This
issue will be resolved in a separate patch.
v1 -> v2:
* Use macro-defined constants for the default values for invalid PIO/MMIO
reads.
* Change the return type of vmexit_handler_t in DM to void as the return
values are no longer necessary.
* Remove VM_EXITCODE that are no longer used.
Tracked-On: #875
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This patch introduces wrappers to the built-in atomic operations provided by
gcc.
There are two sets of built-in atomic functions available. Before gcc 4.7.0 only
the __sync built-in functions are available, while since 4.7.0 a new set of
built-in functions with the __atomic prefix is introduced as a
replacement. Since the __sync functions will eventually be deprecated, the
__atomic ones are preferred whenever available.
The interfaces provided are listed below, mostly following the naming of the
underlying built-in functions which explain themselves.
atomic_load
atomic_store
atomic_xchg
atomic_cmpxchg
atomic_add_fetch
atomic_sub_fetch
atomic_and_fetch
atomic_xor_fetch
atomic_or_fetch
atomic_nand_fetch
atomic_fetch_add
atomic_fetch_sub
atomic_fetch_and
atomic_fetch_xor
atomic_fetch_or
atomic_fetch_nand
atomic_test_and_set
atomic_clear
atomic_thread_fence
atomic_signal_fence
Tracked-On: #875
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
When guest enter/exit S3, we need to do
1. stop watchdog timer when guest enter S3 to avoid watchdog
timer reset guest when guest is in S3 state.
2. reset watchdog timer when guest exit from S3.
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Then, acrnctl could send command to monitor module of DM and call
functions defined in pm ops. One example is: acrnctl resume UOS
after UOS enter S3.
Also add general pm.c and move pm related function to this file.
Signed-off-by: Yan Like <like.yan@intel.com>
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch adds new signals about parking brake and Hvac in the signal
definition and signal whitelist.
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This patch resolves IOC mediator deinit function is blocked due to IOC mediator
core thread enters into sleep by epoll_wait, then pthread_join cannot return.
Trigger an event to wakeup core thread when IOC mediator deinit is invoked.
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
fix all assign.c integer violations except related
"Implicit conversion: actual to formal param".
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Current ring buffer processing logic assumes every transaction
will be submited to physical device before next transaction
coming. So it use two states 0 (free) and 1 (used) to represent
the state of every data block in the ring buffer. With the help
of the two state, the ring buffer could accept and process data
normally.
But this logic is not proper for ISOC transfer, which generally
submits many transactions even none of them arrive the physical
device. So this patch uses three values to represent the state
of data block in the ring buffer:
USB_XFER_BLK_FREE: this block could be filled with new data;
USB_XFER_BLK_HANDLING: this block is submited to physical device
but response from device is still not received;
USB_XFER_BLK_HANDLED: this block has been processed by physical
device.
The new logic will do different things for each state, which will
make the ISOC transfer work successfully.
Change-Id: I5559cae24c739633289742d64dd51751797b81a7
Tracked-On:
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This patch is used to add support for USB 3.0 devices. Currently
USB 3.0 disk is supported and tested successfully.
Change-Id: I3fbfbe9c28bc4b14af0417104f8fa822f9758908
Tracked-On:
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
While fixing the MISRA C violations related to integral types, we have unified
the type of the following data:
uint8_t:
phys_pin, virt_pin, vpic_pin, ioapic_pin, vioapic_pin
uint16_t:
vm_id, pcpu_id, vcpu_id, vpid
uint32_t:
vector, irq
This patch revisits the types of the fields in vhm_request as well as the
structures used as parameters in the hypercalls, and make them aligned with the
types the hypervisor uses for such data. Reserved fields are added to keep the
size and layout of the structures. Implicit paddings are also made explicit as
reserved fields.
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
fix integer type violations,keep some violations which
related to hypcall and msix_entry_index.
V1->V2:1.modified API_MAJOR_VERSION from Makefile
2.sync acrn_common.h changed to device model
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This function add high level reset_vdev function. Which is
implemented to call deinit/init pairing to emulate the virtual
device reset operation.
This patch also add the system reset which keep the UOS RAM
content functionality to DM.
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Guest has erquirement to support system/full reboot and S3. Which could
trigger different reset path in guest
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
GUEST_CFG_OFFSET is used to pass the memory top info from DM
to HV. The address should be in E820 reserved range to prevent
guest use it for other purpose.
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
There has one new DRD driver followed usb role framework which is just
upstreamed to Linux community. This patch updates the xHCI DM to be
compatible with it. DM DRD code follows DRD spec to implement and make
it more reasonable.
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
For dedicated xHCI extended capability, it need set corresponding PCI VID/PID.
This patch sets the Intel Apollo Lake platform PCI VID/PID for DRD
capability which will be checked for enabling DRD fucntion in new DRD
driver. Besides, this patch refines the PCI VID/PID related code.
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
According to C99 standard, -1 integer constant with 'U/UL'
suffix has no type.
To explicit the integer constant:
Update -1U or -1UL as ~0U or ~0UL, or invalid number according
to usage case.
V1-->V2:
Update parameter name and type of send_startup_ipi since
the second parameter is used as pcpu_id;
Update related comments for code clearity.
V2-->V3:
Update comments of struct acrn_irqline;
rename cpu_startup_dest as dest_pcpu_id in the second
parameter of send_startup_ipi.
Tracked-on: ccm0001001-247033
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The current register names in instr_emul are misleading since the register names
are not VM-specific. Rename VM_REG(_GUEST) to CPU_REG in both the hypervisor and
device model.
v1 -> v2:
* Introduced.
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Misra C required signed/unsigned conversion with cast.
V1->V2:
a.split patch to patch series
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
