Commit Graph

146 Commits

Author SHA1 Message Date
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
Josh Soref
5c3f4dbe6f ch: Fix various misspelled words
Misspellings were identified by https://github.com/marketplace/actions/check-spelling
* Initial corrections suggested by Google Sheets
* Additional corrections by Google Chrome auto-suggest
* Some manual corrections

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-09-23 08:59:31 +01:00
Sebastien Boeuf
4e1b78e1ff vmm: Add 'hotplugged_size' to memory parameters
Add the new option 'hotplugged_size' to both --memory-zone and --memory
parameters so that we can let the user specify a certain amount of
memory being plugged at boot.

This is also part of making sure we can store the virtio-mem size over a
reboot of the VM.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-16 19:20:04 +02:00
Sebastien Boeuf
015c78411e vmm: Add a 'resize-zone' action to the API actions
Implement a new VM action called 'resize-zone' allowing the user to
resize one specific memory zone at a time. This relies on all the
preliminary work from the previous commits to resize each virtio-mem
device independently from each others.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-16 19:20:04 +02:00
Sebastien Boeuf
c645a72c17 vmm: Add 'hotplug_size' to memory zones
In anticipation for resizing support of an individual memory zone,
this commit introduces a new option 'hotplug_size' to '--memory-zone'
parameter. This defines the amount of memory that can be added through
each specific memory zone.

Because memory zone resize is tied to virtio-mem, make sure the user
selects 'virtio-mem' hotplug method, otherwise return an error.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-16 19:20:04 +02:00
Sebastien Boeuf
e15dba2925 vmm: Rename NUMA option 'id' into 'guest_numa_id'
The goal of this commit is to rename the existing NUMA option 'id' with
'guest_numa_id'. This is done without any modification to the way this
option behaves.

The reason for the rename is caused by the observation that all other
parameters with an option called 'id' expect a string to be provided.

Because in this particular case we expect a u32 representing a proximity
domain from the ACPI specification, it's better to name it with a more
explicit name.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-07 07:37:14 +02:00
Sebastien Boeuf
55e9827e00 docs: Update memory documentation
Based on the recent changes regarding how to describe NUMA nodes to the
guest, the documentation related to memory zones and NUMA has been
updated accordingly.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-07 07:37:14 +02:00
Sebastien Boeuf
239169ad1d docs: Add documentation about memory in Cloud-Hypervisor
Writing some new documentation to help users understand how the guest
memory can be described through Cloud-Hypervisor parameters.

Fixes #1659

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-02 13:46:28 +02:00
Amey Narkhede
dc9c12518e docs/iommu: Update cpu and memory option parameters
Use of backing file is deprecated hence use the `hugepages` field.
Also use the `boot` field for specifying number of cpus

Signed-off-by: Amey Narkhede <ameynarkhede02@gmail.com>
2020-08-24 08:49:47 +02:00
Amey Narkhede
9304b92219 docs/virtio-fs: Update --memory option parameters
Use updated --memory option parameters. The field `size` needs
M/G suffix. Without the suffix cloud-hypervisor panics at
src/main.rs:353
Also the use of backing file is deprecated so use `shared` field

Signed-off-by: Amey Narkhede <ameynarkhede02@gmail.com>
2020-08-19 10:43:04 +02:00
Alyssa Ross
17ad86afe3 docs: use shared memory with vhost-user
Not doing this is an error.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
2020-08-11 19:37:31 +02:00
Michael Zhao
44eccbe1af scripts: Remove the workaround for "with-serde" build error on AArch64
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-31 12:35:17 +01:00
Howard Zhang
15bf61c6aa doc: AArch64: align rootfs name in arm64.md
Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2020-07-28 10:38:13 +08:00
Sebastien Boeuf
4fc7eb3daa docs: Add snapshot/restore documentation
Add some documentation regarding the snapshot/restore feature which was
introduced earlier, explaining how the feature works and how to use it
properly.

Fixes #1490

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-07-22 12:49:34 +01:00
Sebastien Boeuf
840445096a docs: Add Intel SGX documentation
Adding a few notes and links about how to enable and use SGX through
Cloud-Hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-07-20 09:06:06 +01:00
Rob Bradford
4d878418e5 fuzz: Add fuzzing infrastructure and QCOW fuzzer
Add the basic infrastructure for fuzzing along with a qcow fuzzer ported
from crosvm and adapted to our code.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-07-17 08:49:35 +02:00
Michael Zhao
f1419d116d docs: Update AArch64 doc to use KVM feature
Updated the build instructions to adapt to new added KVM feature.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-16 11:00:32 +02:00
Bo Chen
48966b4535 docs: Update API documentation about '/vm.remove-device'
With recent changes (#1030 #1084), the '/vm.remove-device' API is no
longer restricted to remove VFIO PCI devices. It now supports (almost)
all hotpluggable devices, e.g. disk/net/pmem/fs/vsock.

Signed-off-by: Bo Chen <chen.bo@intel.com>
2020-07-16 07:35:26 +02:00
Michael Zhao
cbb1f4cc2d docs: Add document for using PCI on AArch64
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-14 14:34:54 +01:00
Sebastien Boeuf
a3342bdb25 docs: Replace every mention of ClearLinux with Ubuntu
Now that our CI has transitioned from ClearLinux to Ubuntu images
exclusively, let's update the documentation to refer to Ubuntu images
instead of ClearLinux's ones.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-07-03 14:37:09 +02:00
Sebastien Boeuf
b452e8be00 docs: Update custom image instructions
Now that the project relies on Ubuntu images, the documentation related
to the creation of a custom image has been updated. It's important to
note this procedure could be applied to any other distribution, given
that the package manager's commands would be slightly different.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-07-03 14:37:09 +02:00
Michael Zhao
8820e9e133 vmm: Fix Seccomp filter for AArch64
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-02 08:46:24 +01:00
Rob Bradford
6ee9903601 docs: Update API documentation
Update the API documentation to reflect that the hotplug APIs return
data about the device as well as the newly added /vm.counters API.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-06-27 00:07:47 +02:00
Henry Wang
99e72be169 unit tests: Fix unit tests and docs for AArch64
Currently, not every feature of the cloud-hypervisor is enabled
on AArch64, which means that on AArch64 machines, the
`run_unit_tests.sh` needs to be tailored and some unit test cases
should be run on x86_64 only.

Also this commit fixes the typo and unifies `Arm64` and `AArch64`
in the AArch64 document.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2020-06-15 17:28:05 +01:00
Michael Zhao
3f18f93f40 docs: Add a guide for testing on AArch64
The support of AArch64 is in very early stage. The steps in building and
runing on X86 and AArch64 can not align well yet. Adding AArch64 content
to README.md would produce much divergence.
Adding a guide in docs/ folder could be a better way to start now.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-06-11 15:00:17 +01:00
Bo Chen
625bab69bd vmm: api: Allow to delete non-booted VMs
The action of "vm.delete" should not report errors on non-booted
VMs. This patch also revised the "docs/api.md" to reflect the right
'Prerequisites' of different API actions, e.g. on "vm.delete" and
"vm.boot".

Fixes: #1110

Signed-off-by: Bo Chen <chen.bo@intel.com>
2020-06-09 05:58:32 +01:00
Bo Chen
a8cdf2f070 tests,vm-virtio,vmm: Use 'socket' for all CLI/API parameters
This patch unifies the inconsistent uses of 'socket' and 'sock' from our
CLI/API parameters.

Fixes: #1091

Signed-off-by: Bo Chen <chen.bo@intel.com>
2020-06-08 17:41:12 +02:00
Rob Bradford
af8292b623 vmm, config, vhost_user_blk: remove "wce" parameter
This config option provided very little value and instead we now enable
this feature (which then lets the guest control the cache mode)
unconditionally.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-05-21 08:40:43 +02:00
Rob Bradford
8de7448d44 vmm: api: Add "add-vsock" API entry point
This allows the hotplugging of vsock devices.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-04-29 12:44:49 +01:00
Yang Zhong
9c7215d620 docs: Add the vhost-user-blk test doc
This doc describe how to use vhost-user-blk in Cloud Hypervisor
with SPDK. With this doc, we can setup simple test environment on
Ubuntu release.

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
2020-04-22 20:18:23 +02:00
Dean Sheather
bb2139a408 vmm/api: Add vm.add-fs route
Currently unimplemented. Once implemented, this API will allow for
creating virtio-fs devices in the VM after it has booted.

Signed-off-by: Dean Sheather <dean@coder.com>
2020-04-20 20:36:26 +02:00
Rob Bradford
c73c31b66e docs: Update API documentation to include "vm.add-net"
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-25 17:58:06 +01:00
Rob Bradford
44aef8f438 docs: Update API documentation to include "vm.add-pmem"
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-25 13:18:17 +01:00
Rob Bradford
eec1a32d95 docs: Update API documentation to include "vm.add-disk"
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-25 09:35:53 +00:00
Cathy Zhang
5aa9abca5e docs: Add document for vhost-user-net test with OVS/DPDK
Add a document to illustrate how to test vhost-user-net function with
OpenVSwitch + DPDK as backend.

Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
2020-03-18 16:43:09 +01:00
Jose Carlos Venegas Munoz
40b38a4222 openapi: Make desired_ram int64 format
The option desired_ram is in byte, make larger the amount of memory to
add.

Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
2020-03-12 23:17:56 +01:00
Sebastien Boeuf
6cbdb9aa47 vmm: api: Introduce new "remove-device" HTTP endpoint
This commit introduces the new command "remove-device" that will let a
user hot-unplug a VFIO PCI device from an already running VM.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-03-10 17:05:06 +00:00
Sebastien Boeuf
4b328631b9 docs: Update api.md for VFIO hotplug
Adding the missing entry for "add-device" in the API documentation.

Fixes #863

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-03-05 16:41:26 +00:00
Sebastien Boeuf
0223cf8c2b ci: Update ClearLinux image
A new ClearLinux image has been uploaded to the Azure storage account.
It is based off of the ClearLinux cloudguest image 31310 version, with
three extra bundles added to it.

First bundle is curl, which adds the curl binary to the image, second
bundle is iperf, adding the iperf binary to the image, and third bundle
is sysadmin-basic to include utility like netcat.

The image is 2G in size.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-03-04 07:31:15 +00:00
Sebastien Boeuf
53481aabe5 docs: Update documentation related to multiqueue network
Just updating the documentation regarding the pre-creation of a tap
interface supporting multiqueue, by adding what the cloud-hypervisor
--net parameter should look like.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-02-12 18:05:42 +00:00
Samuel Ortiz
0cd3325a06 docs: Cloud Hypervisor API documentation
We document both the internal and external APIs, and how they relate to
each others.

Fixes: #318

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-02-07 11:26:41 +01:00
Rob Bradford
3c8cf0988d docs: Update device model to clarify how to enable vhost-user-block
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-01-29 08:06:37 +00:00
Rob Bradford
f322e924ad docs: Update device model to clarify how to enable vhost-user-net
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-01-28 12:39:26 +00:00
Cathy Zhang
e483cde1bb docs: Update networking.md with multiple queue support
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
2020-01-17 12:06:19 +01:00
Rob Bradford
14041e97e7 docs: Add memory resizing documentation
Add documentation for memory resizing.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-01-15 20:21:22 +01:00
Rob Bradford
32506dadfc docs: Document CPU unplug
This newly added feature wasn't yet documented.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-01-15 20:21:22 +01:00
Sebastien Boeuf
f427d94422 virtio-fs: Update virtiofs daemon parameters
With the latest version of virtiofsd, some changes have been made
to the socket path parameter. This needs to be updated in the cloud
hypervisor codebase, so that our CI keeps running correctly.

Fixes #611

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-01-13 15:55:34 +00:00
Sebastien Boeuf
ad223f2b50 fs: Use cache=none by default
The cache= option from the virtiofsd backend is meant to be used
depending on how the user wants to use the guest page cache. For most
use cases, we want to bypass the guest page cache to reduce the guest
memory footprint, which is why "cache=none" should be the default.

"cache=always" is the other option when the user wants to do something
specific by using the guest page cache, but should not be the default
anymore.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-01-08 09:27:07 +01:00
Sebastien Boeuf
143471b739 fs: Update mount command to mount virtiofs filesystem
With latest kernel, virtio-fs mount command has been simplified, and
this needs to be applied everywhere in our tests and documentation.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-01-08 09:27:07 +01:00
Rob Bradford
6444e29b04 docs: Add CPU hot plug documentation
Add details of how to add vCPUs to the running VM.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-12-13 10:34:41 +00:00
Sebastien Boeuf
c81e808e98 docs: Update instructions regarding virtiofsd
The documentation was out of date since the URL to download virtiofsd
binary was not valid anymore. Instead, the updated documentation now
describe how to build virtiofsd from source.

Fixes #491

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-12-03 12:16:43 +00:00
Rob Bradford
338beebc83 misc: Update locations to point to new kernel fork
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-11-28 14:28:12 +01:00
Rob Bradford
8ec89bc884 misc: Update to new repository locations
Update all references to the new repository locations. Many of these will
redirect however the one used for the hypervisor-fw binary does not so
this is required to allow the builds to pass.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-11-21 11:39:11 +00:00
Sebastien Boeuf
64305dab16 docs: device_model: Fix formatting error
Fix the summary table format.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-11-19 15:45:52 -08:00
Sebastien Boeuf
b55d75ea62 docs: Add device model
This commit introduces a dedicated document describing the device model
supported by cloud-hypervisor VMM.

It needs to be updated anytime a new device will be added in the future.

Fixes #437

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-11-19 14:10:36 -08:00
Sebastien Boeuf
d9695a0fd9 docs: fs: Update virtio-fs documentation
The cloud-hypervisor supports the DAX shared region for better virtio-fs
performances, but it was not updated in the documentation. This commit
takes care of this and also update the mount command since it changed
with virtio-fs v0.3.

Fixes #433

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-11-15 10:51:31 -08:00
Emin Ghuliev
c204d5404b docs: networking: Fix typo in hyperlink
An extra double quote was introduced by mistake in one of the hyperlink.

Signed-off-by: Emin Ghuliev drmint80@gmail.com
2019-11-13 13:18:26 +01:00
Sebastien Boeuf
5822969afa docs: Update instructions to create custom ClearLinux image
Based on recent update of the cloudguest image used by Cloud Hypervisor,
we identified some missing or incorrect details in the instructions.
This patch is here to fix those.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-10-18 08:10:06 +02:00
Sebastien Boeuf
defc33927f docs: iommu: Improve VM boot time and performance
This patch extends the existing virtual IOMMU documentation, explaining
how the use of huge pages can drastically improve the VM boot time.

Particularly, how in case of nested VFIO, the impact is significant and
the rationales behind it.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-10-18 07:21:40 +02:00
Sebastien Boeuf
5fc3f37c9b vmm: Add iommu=on|off option for --device
Having the virtual IOMMU created with --iommu is one thing, but we also
need a way to decide if a VFIO device should be attached to the virtual
IOMMU or not. That's why we introduce an extra option "iommu" with the
value "on" or "off". By default, the device is not attached, which means
"iommu=off".

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-10-16 07:27:06 +02:00
Sebastien Boeuf
2c50c963f5 docs: Explain how to use the virtual IOMMU
This patch introduces a specific documentation for the virtual IOMMU
device. This is important to understand what the use cases are for this
new device and how to properly use it with virtio devices.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-10-07 10:12:07 +02:00
Sebastien Boeuf
4b8d7e718d vmm: Add iommu=on|off option for --disk
Having the virtual IOMMU created with --iommu is one thing, but we also
need a way to decide if a virtio-blk device should be attached to this
virtual IOMMU or not. That's why we introduce an extra option "iommu"
with the value "on" or "off". By default, the device is not attached,
which means "iommu=off".

One side effect of this new option is that we had to introduce a new
option for the disk path, simply called "path=".

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-10-07 10:12:07 +02:00
Sebastien Boeuf
f5a44ea1ad docs: Explain how to create a custom Clear Linux cloud image
This is a quick guide on how to create a custom Clear Linux image based
on the official tooling provided by Clear Linux. If for any reason, the
image we are using is missing some interesting bundles that are packaged
by Clear Linux, this documentation will be the guide on how to proceed.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-09-11 19:13:29 +02:00
Johan Kuijpers
0affdd0df7 docs: Add networking HOWTO
Signed-off-by: Johan Kuijpers <johan.kuijpers@ericsson.com>
2019-08-15 17:52:09 +01:00
Samuel Ortiz
c8364172a3 docs: Add debug I/O port HOWTO
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-08-15 16:06:54 +02:00
Samuel Ortiz
3cc6f48c31 docs: Add VFIO usage example
Fixes: #117

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-07-24 07:17:03 -07:00
Sebastien Boeuf
c0336e83ea docs: Add virtio-fs documentation
Add some documentation specific to virtio-fs and how to perform
filesystem sharing between host and guest with cloud-hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-06-27 21:46:00 +02:00
Samuel Ortiz
74a21f24e1 vendor: Remove vendoring
The cargo interaction with the .cargo/config does not meet our
requirements.

Regardless of .cargo/config explicitly replacing our external sources
with vendored ones, cargo build will rely first on Cargo.lock to update
its local source cache. If a dependency has been push forced, build
fails because of our top level Cargo.toml description.
This prevents us from actually pinning dependencies, which defeats the
vendoring purpose.

We're removing vendoring for now, until we understand it better.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-06-06 10:00:16 +01:00
Samuel Ortiz
89fc75d5d3 docs: Initial vendoring documentation
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-06-04 17:51:52 +02:00