Commit Graph

218 Commits

Author SHA1 Message Date
Rob Bradford
a583b055f5 docs: Add LBR profiling instructions to profiling.md
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-06-16 07:43:36 +01:00
Yi Wang
dbeb922882 doc: add vm coredump support
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Co-authored-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-05-30 13:41:40 +02:00
Steven Dake
5587245bf2 docs: Remove an extra CR
Cut and paste doesn't quite work. Not that cut and pasters will get
this far along, but the docs should be correct in any regards.

Signed-off-by: Steven Dake <steven.dake@gmail.com>
2022-05-18 10:18:52 +01:00
Anatol Belski
f77ea5a2ce doc: Initial add releases.md
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2022-04-29 11:19:45 +01:00
Fabiano Fidêncio
a87d1bbaa1 docs: Fix the name of the I/O operations knobs
The I/O operations knobs are prefixed `ops_` rather than `bw_`, as `bw_`
refers to the "bandwidth" knobs.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
2022-04-19 13:51:33 +01:00
Sebastien Boeuf
2963e5c954 docs: Update TDX documentation
According to latest official images based on latest TDX guest kernel, we
update the documentation to reflect the change regarding serial support.

New guest kernels have been updated to disable usage of serial ports,
meaning adding console=ttyS0 to the kernel boot parameters will have no
effect.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-04-01 18:24:32 +01:00
William Douglas
6b0df31e5d vmm: Add support for enabling AMX in vm guests
AMX is an x86 extension adding hardware units for matrix
operations (int and float dot products). The goal of the extension is
to provide performance enhancements for these common operations.

On Linux, AMX requires requesting the permission from the kernel prior
to use. Guests wanting to make use of the feature need to have the
request made prior to starting the vm.

This change then adds the first --cpus features option amx that when
passed will enable AMX usage for guests (needs a 5.17+ kernel) or
exits with failure.

The activation is done in the CpuManager of the VMM thread as it
allows migration and snapshot/restore to work fairly painlessly for
AMX enabled workloads.

Signed-off-by: William Douglas <william.douglas@intel.com>
2022-03-25 14:11:54 -07:00
Sebastien Boeuf
888a465232 docs: Add documentation for vDPA
Explain the reason why using vDPA might be interesting and how to use it
with Cloud Hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-25 15:30:20 +01:00
Sebastien Boeuf
afd9f17b73 virtio-fs: Deprecate the DAX feature
Disable the DAX feature from the virtio-fs implementation as the feature
is still not stable. The feature is deprecated, meaning the 'dax'
parameter will be removed in about 2 releases cycles.

In the meantime, the parameter value is ignored and forced to be
disabled.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-24 10:39:11 -07:00
Rob Bradford
3120260ed6 docs: Add hotplug behind IOMMU segment to documentation
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-03-22 11:13:20 +00:00
Sebastien Boeuf
3fea5f5396 vmm: Add support for hotplugging a vDPA device
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-18 12:28:40 +01:00
Sebastien Boeuf
2dc9cfaf01 docs: Update virtio-fs documentation
Update the content of the documentation to clarify how the cache option
from virtiofsd has an impact on the host page cache, while the dax
option for the filesystem in the guest has an impact on the guest page
cache.

The document is also updated to not have lines exceeding 80 characters.

Fixes #3826

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-18 11:25:10 +01:00
Sebastien Boeuf
cfc6e6e8eb docs: Add balloon documentation
Document the reason why someone might need to use the balloon device and
detail the different parameters associated with it.

Fixes #3807

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-17 17:01:07 +01:00
Yi Wang
9bfbc93044 docs: api: Add documentation for vm.snapshot/restore
vm.snapshot/restore is missed, add this part.

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
2022-03-17 11:44:07 +00:00
Bo Chen
8bef32d389 docs: Add a documentation for performance metrics
Signed-off-by: Bo Chen <chen.bo@intel.com>
2022-03-14 09:41:51 +00:00
Akira Moroo
ceb43fae6d docs: Add GDB feature document
This commit adds a short GDB feature document.

Signed-off-by: Akira Moroo <retrage01@gmail.com>
2022-02-23 11:16:09 +00:00
Rob Bradford
9acb69f3e3 docs: Update documentation for Rust based virtiofsd
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-02-21 10:42:36 +00:00
Sebastien Boeuf
072114d7c5 docs: Add TDShim to the Intel TDX documentation
Adding a bit of documentation and links about the TDShim and how to run
it with Cloud Hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-02-09 13:50:45 +00:00
Sebastien Boeuf
10676b74dc vmm: Split VM config and VM state for snapshot/restore
In order to allow for human readable output for the VM configuration, we
pull it out of the snapshot, which becomes effectively the list of
states from the VM. The configuration is stored through a dedicated file
in JSON format (not including any binary output).

Having the ability to read and modify the VM configuration manually
between the snapshot and restore phases makes debugging easier, as well
as empowers users for extending the use cases relying on the
snapshot/restore feature.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-02-08 15:06:49 +00:00
Sebastien Boeuf
b552aebbd4 docs: Update snapshot/restore documentation
Remove the bits about this feature being experimental, as well as
limitations around virtio-mem and vhost-user devices.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-02-07 10:53:51 +00:00
Sebastien Boeuf
bea100707f docs: Update OVMF related documentation
Since we moved to the CloudHvX64 target from EDK2, we can't use the same
OVMF firmware for both Cloud Hypervisor and QEMU. The documentation
needed some updates.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-02-02 22:06:06 +01:00
Rob Bradford
804bad53df docs: Update license to match the one specified in the project charter
The Linux Foundation have recommended the use of the this license for
documentation so this change included the license in the documentation
directory.

The file "networking.md" was remove as the copyright holder did not give
their consent.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-02-01 16:56:19 +00:00
Sebastien Boeuf
779bc1a53a edk2: Rely on latest OVMF based on CloudHvX64 target
Update documentation and CI to rely on the new CLOUDHV.fd firmware built
from the newly introduced target CloudHvX64.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-01-18 11:58:26 +01:00
Rob Bradford
a61302f73f docs: Update Live migration documentation for local migration
Use new --local for efficient live migration when migrating locally for
live upgrade.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-01-18 09:07:47 +00:00
Liang Zhou
859f72b5a5 docs: update hotplug.md
Currently cloud-hypervisor supports hotplug of CPUs, passthrough devices, virtio devices and memory resizing,
but in hotplug.md it still mentiones: "Currently Cloud Hypervisor only supports hot plugging of CPU devices."
We need to remove the incorrect information from hotplug.md to reflect the true situation.

Fixes: #3504

Signed-off-by: Liang Zhou <zhoul110@chinatelecom.cn>
2022-01-17 09:43:22 +00:00
Henry Wang
877a537bf7 docs/arm64: Document the hardware constraints
There is a corner case of using the Cloud Hypervisor on AArch64:
If the VM is started on a device where RAM is limited, and if the user
allocates nearly as much memory for the guest as is still free on the
host, we need to enable the swap memory.

This commit documented this corner case with explanation.

Also, this commit corrects the hardware requirement of the GIC interrupt
controller for running the Cloud Hypervisor on AArch64, accroding to
[1].

Fixes: https://github.com/cloud-hypervisor/cloud-hypervisor/issues/3419

Signed-off-by: Henry Wang <Henry.Wang@arm.com>

[1] https://www.kernel.org/doc/html/latest/virt/kvm/devices/arm-vgic-its.html
2021-12-28 21:00:43 +08:00
Henry Wang
bb6c93d5df docs: device_model: Document how to assign device to PCI segment
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-12-06 09:29:49 +00:00
Sebastien Boeuf
9b0fe505ca ci: Update the OVMF version the tests rely on
Bumping the OVMF binary version along with UEFI documentation to
reflect the latest set of patches on top of tianocore/edk2 'master'
branch, which can be found on the Cloud Hypervisor fork on 'ch' branch.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-12-04 23:04:32 +01:00
Henry Wang
8f4de45937 README: AArch64: Improve getting started section
Current `Getting Started` section only contains steps for the x86_64
platform, as we have a documentation doing the same thing for AArch64,
we can point users to the correct documentation.

Also, this commit modifies the `docs/arm64.md` to fit the documentation
style within the project.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-12-02 14:24:38 +00:00
Ziye Yang
ef1ac5c670 docs/vfio-user: Add more description on NVMe Device part
Add more info on how to set up SPDK NVMe-oF tgt for vfio-user usage
in NVMe device example part.

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2021-11-22 11:34:42 -08:00
Ziye Yang
80bbc47147 docs: Fix the typo in hotplug.md
This simple patch just fixes the typo in hotplug.md

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2021-11-17 10:21:07 +00:00
Sebastien Boeuf
8c737793d6 docs: Add documentation for TDX
Creating some brief documentation for TDX, summarizing the links on
where to find more information about TDX, as well as how to run Cloud
Hypervisor on it.

Fixes #3318

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-16 22:42:45 +00:00
Sebastien Boeuf
533e47f26b docs: Update VFIO documentation
Fixing a few inconsistencies and extending the document to tackle
multiple devices use case, as well as having multiple devices under the
same IOMMU group.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-16 11:46:41 +01:00
Sebastien Boeuf
e6e58e6d66 docs: Replace Cloud-Hypervisor with Cloud Hypervisor syntax
The proper way to refer to the project is "Cloud Hypervisor" without the
hyphen in the middle. On the other hand, if one refers to the binary
name, it is "cloud-hypervisor".

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-15 17:27:23 +01:00
Sebastien Boeuf
7c53896f11 docs: Add documentation for CPU parameter
This new document describes the available options for the parameter
`--cpus`, how to use them and what is their usage.

Fixes #3317

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-15 17:27:23 +01:00
Ziye Yang
be79a80361 docs: Update vhost-user-blk-testing.md
The purpose is to add more info while running
spdk vhost tgt. For example, adding more info
(total_size, block_size) to describe the meaning
on creating malloc bdev inside spdk vhost tgt.

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2021-11-12 09:40:29 +00:00
Sebastien Boeuf
b81d758c41 option_parser: Expect commas instead of colons for lists
The elements of a list should be using commas as the correct delimiter
now that it is supported. Deprecate use of colons as delimiter.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-09 08:59:59 +01:00
Willen Yang
4c9a88db87 docs: update arm64.md
fix the typo in "### Booting the guest VM" section.

Signed-off-by: Willen Yang <willenyang@gmail.com>
2021-10-25 10:26:58 +08:00
Henry Wang
dd6f07da23 docs: Add notes for PCI device hotplug on AArch64
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-09-29 17:37:43 +01:00
Li Yu
0468598fa3 docs: update prefault in memory
Update introduction of option `prefault`.

In addition, this commit also did the following:
- Rearrange options, synchronize order with `config.rs`.
- Break long lines in `hugepages`.
- Update old example of `hugepages` in memory zone.

Signed-off-by: Li Yu <liyu.yukiteru@bytedance.com>
2021-09-29 09:01:22 -07:00
Michael Zhao
da8eecc797 docs: Describe about virtio-iommu with FDT
Added a section in "Usage" chapter of "iommu.md" to introduce the
special behavior when virtio-iommu is working with FDT on AArch64.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2021-09-17 12:19:46 +02:00
Henry Wang
4d52a84ef7 docs: api: Add documentation for vm.power-button
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-09-03 10:27:52 -07:00
Bo Chen
001ee6794c docs: Update the live-migration documentation
To enable live-migration for vhost-user devices, we now always shutdown
the source VM when the migration is completed. This patch reflects this
change in the documentation.

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-08-26 06:01:16 -07:00
Rob Bradford
b075aada8c docs: Fix the command order in the vfio-user docs
The test image file needs to be created before creating the filesystem
on it.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-25 09:47:58 -07:00
Wei Liu
af3bdb452a docs: amend CSM build instructions
I found a few issues when following the instructions.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-08-16 11:00:36 -07:00
Rob Bradford
ea5a050341 docs: Improve vfio-user documentation
Change the block size to the standard 512 byte sector size to that
disk images can be used (since their partition tables will be specified
in terms of 512 byte sectors.)

Also remove the hugepages=on option from the command line as it is not
necessary.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-12 14:14:34 +01:00
Rob Bradford
0bad764462 docs: Add vm.add-user-device to API documentation
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-12 13:19:04 +01:00
Rob Bradford
e7893b9a97 docs: Update vfio-user.md documentation to describe hotplug
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-12 13:19:04 +01:00
Henry Wang
bcae6c41e3 vmm, doc: Forbid same memory zone in multiple NUMA nodes
It is forbidden that the same memory zone belongs to more than one
NUMA node. This commit adds related validation to the `--numa`
parameter to prevent the user from specifying such configuration.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-08-12 10:49:02 +02:00
Rob Bradford
d3b32b3d6d docs: Add documentation on experimental vfio-user support
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-10 16:01:00 +01:00
Anatol Belski
b02df13af9 doc: Stop advertizing QCOW usage at some places in doc
Replacing QCOW mentions with other viable options. There is still
docs/custom-image.md which talks about creating QCOW, however it
might be more convenient to be touched when the actual changes
are indeed there.

Related to #1985.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-08-05 09:24:45 +02:00
Yu Li
9106afae38 docs: Add more information of hugepages.
Add missing option of hugepage_size in argument of memory,
and add some details about lacking huge pages.

Signed-off-by: Yu Li <liyu.yukiteru@bytedance.com>
2021-07-26 11:01:15 -07:00
Henry Wang
ea0918e5e8 docs, scripts: Use upstream edk2 for AArch64
The edk2 upstream has already suppoorted AArch64 Cloud Hypervisor,
and hence we can use upstream edk2 in CI and doc.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-07-09 15:36:37 +02:00
Sebastien Boeuf
6b710209b1 numa: Add optional sgx_epc_sections field to NumaConfig
This new option allows the user to define a list of SGX EPC sections
attached to a specific NUMA node.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-09 14:45:30 +02:00
Sebastien Boeuf
3987026997 docs: Fix errors regarding NUMA documentation
A few fixes to the NUMA documentation as there were some mistakes in
there.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-09 14:45:30 +02:00
Sebastien Boeuf
9aedabe11e sgx: Add mandatory id field to SgxEpcConfig
In order to uniquely identify each SGX EPC section, we introduce a
mandatory option `id` to the `--sgx-epc` parameter.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-09 14:45:30 +02:00
Michael Zhao
54c552f90d docs: Update arm64 doc
Simplified the build instruction on arm64.
And the binary built with default option can be used for both UEFI and
direct-kernel test.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2021-06-24 13:13:27 +01:00
Michael Zhao
b546afd196 docs: Update arm64 document
Adjusted the document structure and added ACPI related content.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2021-06-22 09:36:27 -07:00
Sebastien Boeuf
07f3075773 vmm: device_manager: Tie PCI bus to NUMA node 0
Make sure the unique PCI bus is tied to the default NUMA node 0, and
update the documentation to let the users know about this special case.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-06-17 16:08:46 +02:00
Bo Chen
8a22b2987f docs: Add documentation for live migration
Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-06-10 12:07:14 +02:00
Sebastien Boeuf
9dba097224 ci: Update guest cloud image by installing "stress" utility
Some new integration tests will require the "stress" binary to be
present in the guest in order to run correctly.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-06-09 14:34:55 +01:00
Anatol Belski
01e2826f26 tests: Implement disk hotplug test
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-05-19 10:39:46 +02:00
Dayu Liu
8160c2884b docs: Fix some typos in docs and comments
Fix some typos or misspellings without functional change.

Signed-off-by: Dayu Liu <liu.dayu@zte.com.cn>
2021-05-18 17:19:12 +01:00
Bo Chen
ac2469077f docs: Update documentation vhost-user-net-testing.md
Updated the obsoleted instructions and scripts, based on Open vSwitch
v2.13.1, DPDK stable v19.11.3, and Cloud Hypervisor v15.0 (on Ubuntu
20.04.1).

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-05-06 09:22:28 +02:00
Bo Chen
db66cb6e9b docs: Update documentation vhost-user-blk-testing.md
Updated the obsoleted path of `vhost` the in spdk folder and fixed some
formatting issues.

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-05-04 22:18:35 +02:00
Mikko Ylinen
3b18caf229 sgx: update virt EPC device path and docs
The latest kvm-sgx code has renamed sgx_virt_epc device node
to sgx_vepc. Update cloud-hypervisor code and documentation to
follow this.

Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>
2021-04-30 16:16:01 +02:00
Sebastien Boeuf
235eb5225a docs: Cleanup virtio-fs documentation
Update obsolete information from the virtio-fs documentation.

Fixes #2538

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-04-28 11:42:41 +02:00
Sebastien Boeuf
3ffc655a38 docs: Update VFIO binding instructions
With recent kernels, it is now expected to use "bind" control from the
sysfs in order to bind a specific device to the vfio-pci driver.

The use of "new_id" is still required but it is only needed once per
device type. Let's say you want to bind two virtio-net devices, you will
need to add the device_id:vendor_id pair through "new_id", while you
will be required to use "bind" for each device.

Fixes #2545

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-04-28 11:42:33 +02:00
Rob Bradford
71d68e4f90 docs: Update virtio-fs documentation regarding kernel support
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-04-28 09:02:01 +02:00
Muminul Islam
dbd8629fad docs: Fix cpu parameter in networking doc
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-04-27 08:47:45 +02:00
Muminul Islam
884d528b31 docs: Auto format networking doc
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-04-27 08:47:45 +02:00
Anatol Belski
8614a0ab2f doc: Add note on net dev hotplug to windows.md
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-04-23 14:24:04 +01:00
Alyssa Ross
37a2c13a90 docs: use relative links between cloud-hypervisor docs
This way, the links can be navigated locally, not just on GitHub.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
2021-04-13 10:57:44 +01:00
Anatol Belski
e1cc702327 memory_manager: Fix address range calculation in MemorySlot
The MCRS method returns a 64-bit memory range descriptor. The
calculation is supposed to be done as follows:

max = min + len - 1

However, every operand is represented not as a QWORD but as combination
of two DWORDs for high and low part. Till now, the calculation was done
this way, please see also inline comments:

max.lo = min.lo + len.lo //this may overflow, need to carry over to high
max.hi = min.hi + len.hi
max.hi = max.hi - 1 // subtraction needs to happen on the low part

This calculation has been corrected the following way:

max.lo = min.lo + len.lo
max.hi = min.hi + len.hi + (max.lo < min.lo) // check for overflow
max.lo = max.lo - 1 // subtract from low part

The relevant part from the generated ASL for the MCRS method:
```
Method (MCRS, 1, Serialized)
{
    Acquire (MLCK, 0xFFFF)
    \_SB.MHPC.MSEL = Arg0
    Name (MR64, ResourceTemplate ()
    {
	QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite,
	    0x0000000000000000, // Granularity
	    0x0000000000000000, // Range Minimum
	    0xFFFFFFFFFFFFFFFE, // Range Maximum
	    0x0000000000000000, // Translation Offset
	    0xFFFFFFFFFFFFFFFF, // Length
	    ,, _Y00, AddressRangeMemory, TypeStatic)
    })
    CreateQWordField (MR64, \_SB.MHPC.MCRS._Y00._MIN, MINL)  // _MIN: Minimum Base Address
    CreateDWordField (MR64, 0x12, MINH)
    CreateQWordField (MR64, \_SB.MHPC.MCRS._Y00._MAX, MAXL)  // _MAX: Maximum Base Address
    CreateDWordField (MR64, 0x1A, MAXH)
    CreateQWordField (MR64, \_SB.MHPC.MCRS._Y00._LEN, LENL)  // _LEN: Length
    CreateDWordField (MR64, 0x2A, LENH)
    MINL = \_SB.MHPC.MHBL
    MINH = \_SB.MHPC.MHBH
    LENL = \_SB.MHPC.MHLL
    LENH = \_SB.MHPC.MHLH
    MAXL = (MINL + LENL) /* \_SB_.MHPC.MCRS.LENL */
    MAXH = (MINH + LENH) /* \_SB_.MHPC.MCRS.LENH */
    If ((MAXL < MINL))
    {
	MAXH += One /* \_SB_.MHPC.MCRS.MAXH */
    }

    MAXL -= One
    Release (MLCK)
    Return (MR64) /* \_SB_.MHPC.MCRS.MR64 */
}
```

Fixes #1800.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-04-12 16:20:19 +02:00
Anatol Belski
3f5ecbd326 tests: Extend Windows guest CPU hotplug test and update doc
Both changes aim to document the absence of the CPU hot-remove
functionality on Windows.

Closes #2457.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-04-07 14:44:29 +01:00
Rob Bradford
5c7164e55f docs: Update documentation to not use bzImage
This functionality is deprecated.

See: #2231

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-04-06 13:30:59 +02:00
Anatol Belski
1bb0e54e92 tests: Add test for CPU hotplug for Windows guest
Also, add a note on hotplug support to windows.md.

Closes #2438.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-04-01 16:07:50 +01:00
Bo Chen
32ad4982dd virtio-devices: Add rate limiter for the RX queue of virtio-net
Fixes: #1286

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-03-30 19:47:43 +02:00
Sebastien Boeuf
1cd186c83c docs: Update hotplug documentation with ch-remote
Replacing old instructions using curl with ch-remote ones.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-03-23 14:55:49 -07:00
Sebastien Boeuf
5581486149 docs: Expand memory hotplug documentation for virtio-mem
The hotplug documentation was missing the explanation on how to use
memory hotplug with virtio-mem.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-03-23 14:55:49 -07:00
Sebastien Boeuf
3e3c163285 docs: Extend documentation with PCI device hotplug
Add explanations about PCI device hotplug along with CPU and memory
hotplug.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-03-23 14:55:49 -07:00
Sebastien Boeuf
6190e64f2f docs: Add seccomp documentation
Document that seccomp is on and how to disable it along with a pointer
on how to identify missing syscalls during development.

Fixes #993

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-03-23 18:41:30 +01:00
Henry Wang
d0c0a98eda docs: Update the device model documentation
This commit updates the device model documentation with Arm
specific devices.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-03-16 20:27:15 +08:00
Henry Wang
06d83d2eb3 docs: device_model: Updated the serial device doc
As we switched the AArch64 serial device to PL011, we also need to
update the documentation.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-03-16 11:53:51 +08:00
Iggy Jackson
fea1f370ff docs: Add virtiofs root howto
Add a quick HowTo for using a virtiofs root filesystem in a
cloud-hypervisor guest.

Signed-off-by: Iggy Jackson <iggy@theiggy.com>
2021-03-16 00:10:49 +01:00
Bo Chen
0c7541473c docs: Add documentation on I/O throttling
Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-03-12 09:35:03 +01:00
Sebastien Boeuf
169a6bb83b docs: vfio: Remove documentation regarding VFIO limitations
Since INTx is now supported for VFIO PCI devices, there is no more
limitations regarding VFIO, which means the documentation must be
updated accordingly.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-02-10 17:34:56 +00:00
Rob Bradford
b5fb744828 docs: Update documentation for hugepage_size option
Including a warning that the user is respsonsible for ensuring that they
have sufficient pages of the specified size.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-05 09:24:02 +00:00
Sebastien Boeuf
276c9a10fd docs: Clarify VFIO limitations regarding NVIDIA cards
Because of the behavior of the NVIDIA proprietary driver, we can't
expect NVIDIA cards with only MSI support to be functioning correctly
after they've been passed through with Cloud-Hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-28 09:10:45 +00:00
Rob Bradford
21ba34542d doc: Update documentation to note removal of pollinate package
Also update to include a simple version number in the image name.

See: #2113

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-11 16:38:07 +00:00
Mikko Ylinen
f583aa9d30 sgx: update virt EPC device path and docs
Based on the LKML feedback, the devices under /dev/sgx/* are
not justified. SGX RFC v40 moves the SGX device nodes to /dev/sgx_*
and this is reflected in kvm-sgx (next branch) too.

Update cloud-hypervisor code and documentation to follow this.

Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>
2021-01-05 15:48:17 +00:00
Rob Bradford
ee537d9bde docs: Add instructions for using MACVTAP for bridging
Now that we can support supplying an fd to the TAP device we can support
the MACVTAP and MACVLAN use cases.

Fixes: #872

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 22:51:30 +01:00
Anatol Belski
6c0c47a530 docs/windows.md: Add explicit note on how to start WinDbg
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2020-12-07 16:56:00 +00:00
Rob Bradford
d1a23d9085 docs: Add instructions for using perf
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-11-27 19:19:14 +01:00
Anatol Belski
906a1eb18d doc: Add notes to compile OVMF with legacy support
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2020-11-09 17:41:03 +01:00
Sebastien Boeuf
f4e391922f vmm: Remove balloon options from --memory parameter
The standalone `--balloon` parameter being fully functional at this
point, we can get rid of the balloon options from the --memory
parameter.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-22 16:33:16 +02:00
Anatol Belski
b076602b87 doc: Add Windows debug instructions
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2020-10-19 16:31:26 +01:00
Sebastien Boeuf
58474854f2 docs: Remove all virtio-mmio references
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-19 14:58:48 +01:00
Anatol Belski
095ea049e2 doc: Add UEFI and Windows consumer pages
This changeset extends the documentation with the UEFI and Windows
related info. The focus is on providing consumer with a minimum
necessary and proper piece of the information to enter the features
quickly. While UEFI is a cross platform topic, it is a required
prerequisite for the Windows usage.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2020-10-08 15:45:30 +01:00
Rob Bradford
8824da27cb docs: Add documentation about the log levels and when to use them
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-06 16:52:29 +01:00