This patch updates the rules category in coding guidelines.
Move some rules in 'Statements' part to 'Expressions' part and
'Functions' part, which is more reasonable.
No functional change is involved.
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
ACRN uses CONFIG_PARTITION_MODE macro to compile out CPU_IRQ_ENABLE/DISABLE
APIs. With vector remapping enabled for pre-launched VMs, this is of no use.
And for VMs with LAPIC pass-thru, interrupts stay disabled in vmexit loop
with the help of is_lapic_pt() API.
Tracked-On: #2903
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Now the MAX supported VM number is defined explicitly for each scenario,
so move this config from Kconfig to VM configuration.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Previously we use unified vm_config.c for all scenarios and use MACROs
for each configuration items, then the initialization of vm_configs[]
becomes more complicated when definition of MACROs increase, so change
the coding style that all configurable items could be explicitly shown in
vm_configuration.c to make code more readable.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Add, update '@return' and '@retval' statements to the API descriptions related
to vCPU operations.
Tracked-On: #1844
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
GPIO set/get value can be operated by accessing PIO space and the PIO
register definition for GPIO is in gpio_dm.h, frontend driver or ACPI
control methods can operate GPIO based on it.
GPIO mediator also defines ACPI control methods to support GPIO
operations, GPIO consumers can invoke PIO_GPIO_SET_VALUE/PIO_GPIO_GET_VALUE
in their own DSDT to set/get one GPIO value via ACPI control method.
v2: 1) Fix code style.
2) Use virtio configuration space callbacks to implement GPIO PIO operations
that replace pci_gpio_read/pci_gpio_write with virtio_cfgread/virtio_cfgwrite.
3) Return 0xFFFFFFFF as invalid result of PIO reading instead 0.
Tracked-On: #2512
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
Few tweaks to the "User Guides" and "ACRN Device Model parameters" docs:
- Enhance the help text for the '--rtvm' option description
- Correct the flag name to IO_COMPLETION_POLLING
- Use double-backticks instead of quotes in various places
- Explicitly list all docs in 'index.rst' to enforce special ordering
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Move the doc version selector menu higher on the left nav to make it
more visible (from its prior bottom of the nav menu)
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
A few changes to the documents that describe kernel command-line parameters
relevant to ACRN (SOS and UOS):
- Merge two documents into one (with sections)
- Move to the "User Guides" (from the "Developer Guides")
- Update order in the list to make it consistent across sections
- Add missing parameters to the overview list
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
1. free memory during pci_xhci_dev_destroy.
2. add libusb_free_device_list to free the list of devices previously
discovered using libusb_get_device_list().
3. fix possible memory corruption.
Tracked-On: #2892
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
As vector re-mapping is enabled for pre-launched/partition mode VMs,
there is no more need for separate interrupt routine i.e.
partition_mode_dispatch_interrupt.
Tracked-On: #2879
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
For pre-launched VMs MSI/MSI-x configuration writes are not intercepted by ACRN.
It is pass-thru and interrupts land in ACRN and the guest vector is injected into
the VM's vLAPIC. With this patch, ACRN intercepts MSI/MSI-x config writes and take
the code path to remap interrupt vector/APIC ID as it does for SOS/UOS.
Tracked-On: #2879
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
To keep consistency between HV and DM about PM1A_CNT_ADDR,
it is better to replace the PM1A_CNT related MACROs used in DM
with VIRTUAL_PM1A_CNT related MACROs in acrn_common.h.
Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This patch add one new parameter --rtvm to indicate if the guest is a RTVM or not.
For RTVM, it may be not interference by SOS.
Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch mainly does the following:
- Replace prefix RT_VM_ with VIRTUAL_.
- Remove the check of "addr != RT_VM_PM1A_CNT_ADDR" as the handler is specific for this addr.
- Add comments about the meaning of return value.
Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Intel SDM Vol3 23.8 says:
The INIT signal is blocked whenever a logical processor is in VMX root operation.
It is not blocked in VMX nonroot operation. Instead, INITs cause VM exits
So, there is no side-effect to send INIT signal regardless of pcpu active status.
Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Users of pthread_cond_wait() should take care of spurious wakeups and it
is usually used in conjunction with a predicate. Not doing so can result
in unintended behavior. For example:
virtio_net_tx_thread():
entry -> pthread_cond_wait() -> spurious wakeup ->
vq_clear_used_ring_flags() -> segfault (vq->used uninitialized)
tpm_crb_request_deliver():
entry -> pthread_cond_wait() -> spurious wakeup ->
swtpm_handle_request() called needlessly
virtio_rnd_get_entropy():
entry -> pthread_cond_wait() -> spurious wakeup ->
no avail ring processing ->
virtio_rnd_notify() skips pthread_cond_signal() due to
rnd->in_progress ->
vq_endchains() called needlessly ->
wait in pthread_cond_wait() indefinitely
Fix these uses of pthread_cond_wait() by using predicates.
The only use case without a clear predicate is the tx thread in
virtio-mei, because it works with two-dimensional linked lists.
v1 -> v2:
- fix bugs and comments
- reduce code redundancy
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Reviewed-by: Shuo A Liu <shuo.a.liu@intel.com>
- explicitly initialize the connections list
- use a do-while loop for vmei_proc_tx() since the first call must
always succeed
- make sure active_clients is initialized before creating the tx thread
v1 -> v2:
- split the cleanup commit into two parts
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Remove the uses of LIST_FIRST() and LIST_NEXT() plus an extra pointer.
Also, call LIST_INIT() in vmei_me_client_destroy_host_clients() before
releasing the mutex.
v1 -> v2:
- split the cleanup commit into two parts
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Use pthread_cond_broadcast() while holding the mutex to guarantee the
signaling of its condition variable.
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Reviewed-by: Shuo A Liu <shuo.a.liu@intel.com>
virtio-blk never sets used_all_avail when calling vq_endchains(), which
may become problematic if VIRTIO_F_NOTIFY_ON_EMPTY is enabled.
Provide vq_endchains() with that info to ensure the delivery of an
interrupt when the avail ring is drained in the case of
VIRTIO_F_NOTIFY_ON_EMPTY.
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Reviewed-by: Shuo A Liu <shuo.a.liu@intel.com>
Make sure VQ_ALLOC is visible only after vq is completely initialized.
This ensures vq_ring_ready() is reliable when it returns true.
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Reviewed-by: Shuo A Liu <shuo.a.liu@intel.com>
Change return type to bool when returning int is not necessary.
Tracked-On: #2763
Signed-off-by: Peter Fang <peter.fang@intel.com>
Reviewed-by: Shuo A Liu <shuo.a.liu@intel.com>
'vector_cnt' is vector count of MSI/MSIX, and it come from 'table_count'
in the the pci_msix struct. 'CONFIG_MAX_MSIX_TABLE_NUM' is the maximum
number of MSI-X tables per device, so 'vector_cnt' must be less then
or equal to 'CONFIG_MAX_MSIX_TABLE_NUM'.
Tracked-On: #2881
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>
All if . . else if constructs shall be
terminated with an else statement.
Tracked-On: #861
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com
The pt_dev.c in board folder is replaced by the one in scenarios folder,
so remove them.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
After using get_vm_from_vmid(), vm pointer is always not NULL. But there are still many NULL pointer checks.
This commit replaced the NULL vm pointer check with a validation check which checks the vm status.
In addition, NULL check for pointer returned by get_sos_vm() and get_vm_config() is removed.
Tracked-On: #2520
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit renmaes guest_no in shell_to_sos_console() to vm_id, which is commonly used in ACRN.
Tracked-On: #2520
Signed-off-by: Yan, Like <like.yan@intel.com>
For hv shell commands with vm_id option, need to check it is in the valid range [0, CONFIG_MAX_VM].
This commit checks the input vm_id, if it's not in the valid range, an error message will be given,
and vm_id will be assgined to default 0U.
Tracked-On: #2520
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The CLOS is initialized to 0 for each scenarios. User could modify this
configuration in its vm_configurations.h;
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
In this scenario, hypervisor will run two logical partition VMs.
Please note that the Kconfig of Hypervisor mode will be removed
gradually. In current Kconfig setting, the CONFIG_PARTITION_MODE
is still kept for now for back-compatibility.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Previously the vm_configs[] is defined separately for sharing mode and
partition mode, but the concept of hypervisor mode will be removed. Instead
we will introduce scenario Kconfig for hypervisor to load different vm
configurations.
SDC(Software Defined Cockpit) is a typical scenario that ACRN supported
so we introduce this scenario for previously sharing mode and move its
configurations to scenarios/sdc folder. The configuration could be used
for all boards reference.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Use MACROs in pt_dev.c to replace straight-forward BDF numbers. The
pt devices for each VM will be chosen from Board specific PCI devices
list which defined in pci_devices.h;
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
- Remove QemuFwCfg/QemuFwCfgS3Lib
- Use ACRN E820 map to query system memory size
- Support 64-bit PCI host aperture via ACRN E820
- Remove debug code in release build
- Take out unnecessary OVMF drivers
- Revert "Enable MP support"
- Use CPUID 0x40000010 to determine tsc frequency
Tracked-On: #2868
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acrnctl commands return 0,even if when it fails to execute the commands.
In this patch,fix this issue.It return none-zero when acrnctl commands
failed in command executed.
Tracked-On: #1262
Signed-off-by:liuyonggang <yonggangx.liu@intel.com>
Acked-by: Yan, Like <like.yan@intel.com>
the commands.
acrnctl commands can manage multiple vms with a single
command launched, which is not useful actually.
To make the logic simple, this patch makes it to manage
only a single vm by each command.
Tracked-On: #1262
Signed-off-by:liuyonggang <yonggangx.liu@intel.com>
Acked-by: Yan, Like <like.yan@intel.com>
Add the default handlers for PIO and MMIO access which returns all
FFs on read and discards write. These default handlers are registered
when SOS VM or pre-launched VM is created.
v3 -> v4:
- use single layer if in hv_emulate_pio
- change the implementation of pio_default_read
v2 -> v3:
- use runtime vm type instead of CONFIG_PARTITION_MODE
- revise the pio/mmio emulation functions
- revise the pio/mmio default read functions according to MISRA C
- revise the commit message
v1 -> v2:
- add default handlers members in struct acrn_vm and add interfaces
to register default handlers for PIO and MMIO.
Tracked-On: #2860
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Shiqing Gao