We'll also want to support some older Debian combinations for
architectures that didn't make the Debian 9 cut.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[AJB: extend commit msg]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
When a test fails/hangs you don't want the hassle of getting the debug
tools installed. Lets install them on our image by default so we can
debug when we need to.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Although the upstream Travis images don't need this library our
"travis-lite" scripts are written in python. This allows us to do:
make docker-travis@travis J=10
and approximate a travis run on their default image.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Because global environment variables can be overridden when .travis.yml
is processed by the docker-travis target, the effect of this patch is
that docker-travis now obeys the "J=n" option.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This is useful so that we can do builds at higher than -j3 when running
travis.py locally.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Quite a while has passed since we last updated U-Boot for e500. This patch
bumps it to the last released version 2017.07 to make sure users don't feel
like they're using out of date software.
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-id: 1499862868-102130-1-git-send-email-agraf@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit c5f1ad429c ("block: Remove
bdrv_aio_readv/writev/flush()") removed
bdrv_aio_readv()/bdrv_aio_writev() so the example in the tracing
documentation is no longer valid.
Reported-by: Wang Dong <dongdwdw@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170714133111.27359-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Last patch removed a nesting level in generated code. Re-align all code
generated by backends to be 4-column aligned.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915824586.6295.17820926011082409033.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If an event is dynamically disabled, the TCG code that calls the
execution-time tracer is not generated.
Removes the overheads of execution-time tracers for dynamically disabled
events. As a bonus, also avoids checking the event state when the
execution-time tracer is called from TCG-generated code (since otherwise
TCG would simply not call it).
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915799921.6295.13067154430923434035.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Every vCPU now uses a separate set of TBs for each set of dynamic
tracing event state values. Each set of TBs can be used by any number of
vCPUs to maximize TB reuse when vCPUs have the same tracing state.
This feature is later used by tracetool to optimize tracing of guest
code events.
The maximum number of TB sets is defined as 2^E, where E is the number
of events that have the 'vcpu' property (their state is stored in
CPUState->trace_dstate).
For this to work, a change on the dynamic tracing state of a vCPU will
force it to flush its virtual TB cache (which is only indexed by
address), and fall back to the physical TB cache (which now contains the
vCPU's dynamic tracing state as part of the hashing function).
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915775266.6295.10060144081246467690.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This keeps consistency across all decisions taken during translation
when the dynamic state of a vCPU is changed in the middle of translating
some guest code.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915750615.6295.3713699402253529487.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
There's little point in dynamically allocating the bitmap if we
know at compile-time the max number of events we want to support.
Thus, make room in the struct for the bitmap, which will make things
easier later: this paves the way for upcoming changes, in which
we'll use a u32 to fully capture cpu->trace_dstate.
This change also increases performance by saving a dereference and
improving locality--note that this is important since upcoming work
makes reading this bitmap fairly common.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 149915725977.6295.15069969323605305641.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This pull requests supersedes the one from 2017-07-14. That one had a
couple of subtle regressions: there was a build error for mingw32, and
an instance_size which was theoretically wrong everywhere, but only
actually bit on the Travis OSX build.
There are two major batches in this set, rather than the usual
collection of assorted fixes.
* More DRC cleanup. This gets the state management into a state
which should fix many of the hotplug+migration problems we've
had. Plus it gets the migration stream format into something
well defined and pretty minimal which we can reasonably support
into the future.
* Hashed Page Table resizing. It's been a while since this was
posted, but it's been through several previous rounds of review.
The kernel parts (both guest and host) are merged in 4.11, so
this is the only remaining piece left to allow resizing of the
HPT in a running guest.
There are also a handful of unrelated fixes.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.10-20170717' into staging
ppc patch queue 2017-07-17
This pull requests supersedes the one from 2017-07-14. That one had a
couple of subtle regressions: there was a build error for mingw32, and
an instance_size which was theoretically wrong everywhere, but only
actually bit on the Travis OSX build.
There are two major batches in this set, rather than the usual
collection of assorted fixes.
* More DRC cleanup. This gets the state management into a state
which should fix many of the hotplug+migration problems we've
had. Plus it gets the migration stream format into something
well defined and pretty minimal which we can reasonably support
into the future.
* Hashed Page Table resizing. It's been a while since this was
posted, but it's been through several previous rounds of review.
The kernel parts (both guest and host) are merged in 4.11, so
this is the only remaining piece left to allow resizing of the
HPT in a running guest.
There are also a handful of unrelated fixes.
# gpg: Signature made Mon 17 Jul 2017 07:36:52 BST
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.10-20170717: (21 commits)
target/ppc: fix CPU hotplug when radix is enabled (TCG)
spapr: fix memory leak in spapr_core_pre_plug()
pseries: Allow HPT resizing with KVM
pseries: Use smaller default hash page tables when guest can resize
pseries: Enable HPT resizing for 2.10
pseries: Implement HPT resizing
pseries: Stubs for HPT resizing
ppc/pnv: Remove unused XICSState reference
spapr: fix potential memory leak in spapr_core_plug()
spapr: Implement DR-indicator for physical DRCs only
spapr: Remove sPAPRConfigureConnectorState sub-structure
spapr: Consolidate DRC state variables
spapr: Cleanups relating to DRC awaiting_release field
spapr: Refactor spapr_drc_detach()
spapr: Abort on delete failure in spapr_drc_release()
spapr: Simplify unplug path
spapr: Remove 'awaiting_allocation' DRC flag
spapr: Treat devices added before inbound migration as coldplugged
spapr: Minor cleanups to events handling
spapr: migrate pending_events of spapr state
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v2
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Merge remote-tracking branch 'remotes/famz/tags/block-and-testing-pull-request' into staging
# gpg: Signature made Mon 17 Jul 2017 04:47:05 BST
# gpg: using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6
* remotes/famz/tags/block-and-testing-pull-request:
travis: add no-TCG build
docker.py: Improve subprocess exit code handling
docker.py: Drop infile parameter
docker: Don't enable networking as a side-effect of DEBUG=1
ssh: support I/O from any AioContext
sheepdog: add queue_lock
qed: protect table cache with CoMutex
qed: introduce bdrv_qed_init_state
block: invoke .bdrv_drain callback in coroutine context and from AioContext
qed: move tail of qed_aio_write_main to qed_aio_write_{cow, alloc}
vvfat: make it thread-safe
vpc: make it thread-safe
vdi: make it thread-safe
coroutine-lock: add qemu_co_rwlock_downgrade and qemu_co_rwlock_upgrade
qcow2: call CoQueue APIs under CoMutex
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the cursor resource id isn't set the guest didn't define a cursor.
Skip the cursor update in post_load in that that case.
Reported-by: wanghaibin <wanghaibin.wang@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: wanghaibin <wanghaibin.wang@huawei.com>
Message-id: 20170710070432.856-1-kraxel@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The QMP query-vnc interfaces have gained a lot more information that
the HMP interfaces hasn't got yet. Update it.
Note the output format has changed, but this is HMP so that's OK.
In particular, this now includes client information for reverse
connections:
-vnc :0
(qemu) info vnc
default:
Server: 0.0.0.0:5900 (ipv4)
Auth: none (Sub: none)
(Now connect a client)
(qemu) info vnc
default:
Server: 0.0.0.0:5900 (ipv4)
Auth: none (Sub: none)
Client: 127.0.0.1:51828 (ipv4)
x509_dname: none
sasl_username: none
-vnc localhost:7000,reverse
(qemu) info vnc
default:
Client: ::1:7000 (ipv6)
x509_dname: none
sasl_username: none
Auth: none (Sub: none)
-vnc :1,password,id=pass -vnc localhost:7000,reverse
(qemu) info vnc
default:
Client: ::1:7000 (ipv6)
x509_dname: none
sasl_username: none
Auth: none (Sub: none)
rev:
Server: 0.0.0.0:5901 (ipv4)
Auth: vnc (Sub: none)
Client: 127.0.0.1:53616 (ipv4)
x509_dname: none
sasl_username: none
This was originally RH bz 1461682
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20170711154414.21111-1-dgilbert@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The current VNC default keyboard delay is 1ms. With that we're constantly
typing faster than the guest receives keyboard events from an XHCI attached
USB HID device.
The default keyboard delay time in the input layer however is 10ms. I don't know
how that number came to be, but empirical tests on some OpenQA driven ARM
systems show that 10ms really is a reasonable default number for the delay.
This patch moves the VNC delay also to 10ms. That way our default is much
safer (good!) and also consistent with the input layer default (also good!).
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1499863425-103133-1-git-send-email-agraf@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
If a voice recording equipment is opened for a long time(several days)
in windows guest, rate->ipos will overflow and rate->opos will never
have a chance to change. It will result to a infinite loop.
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Signed-off-by: Wang Yechao <wang.yechao255@zte.com.cn>
Message-id: 1500128061-20849-1-git-send-email-peng.hao2@zte.com.cn
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Rebase ipxe to latest git master.
Pick up four virtio-net fixes.
complete shortlog of ipxe changes
---------------------------------
Adamczyk, Konrad (1):
[thunderx] Use ThunderxConfigProtocol to obtain board configuration
Bartosz Szczepanek (1):
[thunderx] Fix hardware deinitialization
Christian Nilsson (1):
[intel] Add INTEL_NO_PHY_RST for I219-LM (2)
David Decotigny (2):
[build] Return const char * from uuid_ntoa()
[af_packet] Add new AF_PACKET driver for Linux
Jason Wang (1):
[virtio] Support VIRTIO_NET_F_IOMMU_PLATFORM
Jerone Young (1):
[intel] Add support for I219-V in 7th Gen Intel NUC
Konrad Adamczyk (1):
[thunderx] Don't disable NIC when exiting from iPXE
Ladi Prosek (3):
[virtio] Cap queue size to MAX_QUEUE_NUM
[virtio] Simplify virtqueue shutdown
[virtio] Remove queue size limit in legacy virtio
Martin Habets (1):
[sfc] Add driver for Solarflare SFC8XXX adapters
Michael Brown (159):
[interface] Provide intf_reinit() to reinitialise nullified interfaces
[iscsi] Avoid potential infinite loops during shutdown
[efi] Add basic EFI SAN booting capability
[undi] Allocate base memory before calling UNDI loader entry point
[romprefix] Avoid using PMM-allocated memory in UNDI loader entry point
[undi] Clean up driver and device name information
[prefix] Remove impossible progress message
[prefix] Include diagnostic information within progress messages
[undi] Try matching UNDI ROMs in BIOS enumeration order
[efi] Work around temporal anomaly encountered during ExitBootServices()
[ipv4] Accept unicast packets for the local network broadcast address
[build] Add %.vhd target for building VM bootable disk images
[virtio] Use separate RX and TX empty header buffers
[cloud] Add ability to retrieve Google Compute Engine metadata
[virtio] Use host-specified MTU when available
[netdevice] Allow MTU to be changed at runtime
[cloud] Show CPU vendor and model in example cloud boot scripts
[hyperv] Ignore unsolicited VMBus messages
[pic8259] Fix definitions for "read IRR" and "read ISR" commands
[efi] Fix building elf2efi.c when -fpic is enabled by default
[interface] Avoid unnecessary reference counting in intf_unplug()
[interface] Remove misleading comment
[interface] Unplug interface before calling intf_close() in intf_shutdown()
[netdevice] Limit MTU by hardware maximum frame length
[cpuid] Provide cpuid_supported() to test for supported functions
[time] Allow timer to be selected at runtime
[hyperv] Provide timer based on the 10MHz time reference count MSR
[int13] Avoid potential division by zero
[int13] Test correct return status from INT 13 calls
[settings] Add "unixtime" builtin setting to expose the current time
[time] Report attempts to use timers before initialisation
[interface] Provide the ability to shut down multiple interfaces
[http] Cleanly shut down potentially looped interfaces
[efi] Add missing SANBOOT_PROTO_HTTP to EFI default configuration
[block] Remove spurious comments
[block] Centralise SAN device abstraction
[block] Centralise "san-drive" setting
[int13] Refactor to use centralised SAN device abstraction
[efi] Refactor to use centralised SAN device abstraction
[block] Retry any SAN device operation
[iscsi] Use intfs_shutdown() when shutting down multiple interfaces
[scsi] Use intfs_shutdown() when shutting down multiple interfaces
[block] Use intfs_shutdown() when shutting down multiple interfaces
[scsi] Avoid duplicate calls to scsicmd_close()
[build] Provide common ARRAY_SIZE() definition
[efi] Update to current EDK2 headers
[efi] Add EFI_ACPI_TABLE_PROTOCOL header and GUID definition
[efi] Provide ACPI table description for SAN devices
[efi] Skip cable detection at initialisation where possible
[undi] Move PXE API caller back into UNDI driver
[dhcp] Allow vendor class to be changed in DHCP requests
[hermon] Avoid potential integer overflow when calculating memory mappings
[arbel] Avoid potential integer overflow when calculating memory mappings
[xfer] Ensure va_end() is called on failure path
[nfs] Fix double free bug on error path
[linda] Use correct length for memset()
[qib7322] Use correct length for memset()
[sis900] Remove extraneous memset() with incorrect length
[802.11] Remove redundant NULL pointer check after dereference
[crypto] Free correct pointer on the error path
[librm] Fail gracefully if asked to ioremap() a zero length
[usb] Use correct length for memcpy()
[mucurses] Attempt to fix test for empty string
[mucurses] Attempt to fix keypress processing logic
[mucurses] Attempt to fix resource leaks
[hyperv] Fix resource leaks on error path
[slam] Fix resource leak on error path
[slam] Avoid NULL pointer dereference in slam_pull_value()
[eoib] Avoid passing a NULL I/O buffer to netdev_tx_complete_err()
[http] Add missing check for memory allocation failure
[mucurses] Attempt to fix use of uninitialised buffer with strcat()
[xhci] Avoid accessing beyond end of endpoint context array
[build] Avoid confusing sparse in single-argument DBG() macros
[infiniband] Return status code from ib_create_cq() and ib_create_qp()
[infiniband] Return status code from ib_create_mi()
[block] Quell spurious Coverity size mismatch warning
[ath] Add missing break statements
[pixbuf] Avoid potential division by zero
[usb] Use correct length for memcpy()
[xen] Use standard calling pattern for asprintf()
[tcp] Use correct length for memset()
[video_subr] Use memmove() for overlapping memory copy
[arbel] Assert that mapping length is non-zero
[hermon] Assert that mapping length is non-zero
[tlan] Guard against failure to identify chip
[w89c840] Avoid potential array overrun
[sis190] Avoid NULL pointer dereference
[mucurses] Ensure SLK labels are always terminated
[coverity] Add Coverity user model
[malloc] Track maximum heap usage
[travis] Add minimal .travis.yml file
[travis] Build and run the unit test suite
[travis] Integrate with Coverity Scan
[rtl818x] Fix resource leak on error path
[pcnet32] Eliminate redundant register read
[iobuf] Increase minimum I/O buffer size to 128 bytes
[vxge] Fix use of stale I/O buffer on error path
[scsi] Avoid duplicate call to scsicmd_close() on TEST UNIT READY failure
[block] Add dummy SAN device
[block] Add basic multipath support
[int13] Improve geometry guessing for unaligned partitions
[int13con] Avoid overwriting random portions of SAN boot disks
[time] Add sleep_fixed() function to sleep without checking for Ctrl-C
[block] Allow SAN retry count to be reconfigured
[block] Add a small delay between attempts to reopen SAN targets
[block] Retry reopening indefinitely for multipath devices
[block] Gracefully close SAN device if registration fails
[linux] Use dummy SAN device
[block] Ignore redundant xfer_window_changed() messages
[block] Describe all SAN devices via ACPI tables
[iscsi] Do not install iBFT when no iSCSI targets exist
[http] Notify data transfer interface when underlying connection is ready
[mucurses] Fix erroneous __nonnull attribute
[build] Avoid implicit-fallthrough warnings on GCC 7
[linux] Fix building with kernel 4.11 headers
[scsi] Retry TEST UNIT READY command
[libc] Add stdbool.h standard header
[efi] Fix typo in efi_acpi_table_protocol_guid
[efi] Add efi_sprintf() and efi_vsprintf()
[block] Allow use of a non-default EFI SAN boot filename
[intel] Show original CTRL and STATUS values in debugging output
[intel] Do not enable ASDE on i350 backplane NIC
[block] Provide sandev_read() and sandev_write() as global symbols
[block] Provide abstraction to allow system to be quiesced
[hyperv] Do not fail if guest OS ID MSR is already set
[hyperv] Remove redundant return status code from mapping functions
[hyperv] Cope with Windows Server 2016 enlightenments
[efi] Standardise PCI debug messages
[iscsi] Always send FirstBurstLength parameter
[iscsi] Fix iBFT when no explicit initiator name setting exists
[xen] Provide 18 4kB receive buffers to work around xen-netback bug
[efi] Prevent EFI code from being linked in to non-EFI builds
[tls] Keep cipherstream window open until TLS negotiation is complete
[settings] Extend numerical setting tags to 64 bits
[acpi] Make acpi_find_rsdt() a per-platform method
[efi] Provide access to ACPI tables
[acpi] Expose ACPI tables via settings mechanism
[syslog] Handle backspace characters
[hdprefix] Avoid attempts to read beyond the end of the disk
[usb] Allow for USB network devices with no interrupt endpoint
[build] Use -no-pie on newer versions of gcc
[ecm] Display invalid MAC address strings in debug messages
[cpuid] Allow input %ecx value to be specified
[crypto] Expose RSA_CTX_SIZE constant
[crypto] Expose asn1_grow()
[crypto] Provide asn1_built() to construct a cursor from a builder
[crypto] Expose pem_asn1() for use with non-image data
[exanic] Add driver for Exablaze ExaNIC cards
[usb] Use non-zero language ID to retrieve strings
[mucurses] Avoid potential division by zero
[tls] Support RFC5746 secure renegotiation
[smscusb] Abstract out common SMSC USB device functionality
[smsc95xx] Use common SMSC USB device functionality
[smsc75xx] Use common SMSC USB device functionality
[smscusb] Add ability to read MAC address from OTP
[smscusb] Move non-inline register access functions to smscusb.c
[smscusb] Allow for alternative PHY register layouts
[smsc75xx] Expose functionality shared with LAN78xx devices
[lan78xx] Add driver for Microchip LAN78xx USB Ethernet NICs
Mika Tiainen (1):
[intel] Add INTEL_NO_PHY_RST for I219-V
Mike McCormack (1):
[sky2] Use 32-bit read to read Y2_VAUX_AVAIL
Raed Salem (2):
[golan] Update Connect-IB, ConnectX-4 and ConnectX-4 Lx (Infiniband) support
[golan] Bug fixes and improved paging allocation method
Vishvananda Ishaya (1):
[intel] Reset all virtual function settings
Vishvananda Ishaya Abrams (1):
[iscsi] Don't close when receiving NOP-In
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
But when a guest initializes radix mode, it issues a H_REGISTER_PROC_TBL
to update the LPCR of all CPUs. Hot-plugged CPUs inherit from the same
setting under KVM but not under TCG. So, Let's check for radix and update
the default LPCR to keep new CPUs in sync.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
In case of error, we must ensure the dynamically allocated base_core_type
is freed, like it is done everywhere else in this function.
This is a regression introduced in QEMU 2.9 by commit 8149e2992f.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
So far, qemu implements the PAPR Hash Page Table (HPT) resizing extension
with TCG. The same implementation will work with KVM PR, but we don't
currently allow that. For KVM HV we can only implement resizing with the
assistance of the host kernel, which needs a new capability and ioctl()s.
This patch adds support for testing the new KVM capability and implementing
the resize in terms of KVM facilities when necessary. If we're running on
a kernel which doesn't have the new capability flag at all, we fall back to
testing for PR vs. HV KVM using the same hack that we already use in a
number of places for older kernels.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We've now implemented a PAPR extension allowing PAPR guest to resize
their hash page table (HPT) during runtime.
This patch makes use of that facility to allocate smaller HPTs by default.
Specifically when a guest is aware of the HPT resize facility, qemu sizes
the HPT to the initial memory size, rather than the maximum memory size on
the assumption that the guest will resize its HPT if necessary for hot
plugged memory.
When the initial memory size is much smaller than the maximum memory size
(a common configuration with e.g. oVirt / RHEV) then this can save
significant memory on the HPT.
If the guest does *not* advertise HPT resize awareness when it makes the
ibm,client-architecture-support call, qemu resizes the HPT for maxmimum
memory size (unless it's been configured not to allow such guests at all).
For now we make that reallocation assuming the guest has not yet used the
HPT at all. That's true in practice, but not, strictly, an architectural
or PAPR requirement. If we need to in future we can fix this by having
the client-architecture-support call reboot the guest with the revised
HPT size (the client-architecture-support call is explicitly permitted to
trigger a reboot in this way).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
We've now implemented a PAPR extensions which allows PAPR guests (i.e.
"pseries" machine type) to resize their hash page table during runtime.
However, that extension is only enabled if explicitly chosen on the
command line. This patch enables it by default for spapr-2.10, but leaves
it disabled (by default) for older machine types.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
This patch implements hypercalls allowing a PAPR guest to resize its own
hash page table. This will eventually allow for more flexible memory
hotplug.
The implementation is partially asynchronous, handled in a special thread
running the hpt_prepare_thread() function. The state of a pending resize
is stored in SPAPR_MACHINE->pending_hpt.
The H_RESIZE_HPT_PREPARE hypercall will kick off creation of a new HPT, or,
if one is already in progress, monitor it for completion. If there is an
existing HPT resize in progress that doesn't match the size specified in
the call, it will cancel it, replacing it with a new one matching the
given size.
The H_RESIZE_HPT_COMMIT completes transition to a resized HPT, and can only
be called successfully once H_RESIZE_HPT_PREPARE has successfully
completed initialization of a new HPT. The guest must ensure that there
are no concurrent accesses to the existing HPT while this is called (this
effectively means stop_machine() for Linux guests).
For now H_RESIZE_HPT_COMMIT goes through the whole old HPT, rehashing each
HPTE into the new HPT. This can have quite high latency, but it seems to
be of the order of typical migration downtime latencies for HPTs of size
up to ~2GiB (which would be used in a 256GiB guest).
In future we probably want to move more of the rehashing to the "prepare"
phase, by having H_ENTER and other hcalls update both current and
pending HPTs. That's a project for another day, but should be possible
without any changes to the guest interface.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This introduces stub implementations of the H_RESIZE_HPT_PREPARE and
H_RESIZE_HPT_COMMIT hypercalls which we hope to add in a PAPR
extension to allow run time resizing of a guest's hash page table. It
also adds a new machine property for controlling whether this new
facility is available.
For now we only allow resizing with TCG, allowing it with KVM will require
kernel changes as well.
Finally, it adds a new string to the hypertas property in the device
tree, advertising to the guest the availability of the HPT resizing
hypercalls. This is a tentative suggested value, and would need to be
standardized by PAPR before being merged.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
e6f7e110ee "ppc/xics: remove the XICSState classes" got rid of
XICSState, this is just an leftover.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since commit 5c1da81215 ("spapr: Remove unnecessary differences between
hotplug and coldplug paths"), the CPU DT for the DRC is always allocated.
This causes a memory leak for pseries-2.6 and older machine types, that
don't support CPU hotplug and don't allocate DRCs for CPUs.
Reported-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
According to PAPR, the DR-indicator should only be valid for physical DRCs,
not logical DRCs. At the moment we implement it for all DRCs, so restrict
it to physical ones only.
We move the state to the physical DRC subclass, which means adding some
QOM boilerplate to handle the newly distinct type.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
Most of the time, the state of a DRC object is contained in the single
'state' variable. However, during the transition from UNISOLATE to
CONFIGURED state requires multiple calls to the ibm,configure-connector
RTAS call to retrieve the device tree for the attached device. We need
some extra state to keep track of where we're up to in delivering the
device tree information to the guest.
Currently that extra state is in a sPAPRConfigureConnectorState
substructure which is only allocated when we're in the middle of the
configure connector process. That sounds like a good idea, but the extra
state is only two integers - on many platforms that will take up the same
room as the (maybe NULL) ccs pointer even before malloc() overhead. Plus
it's another object whose lifetime we need to manage. In short, it's not
worth it.
So, fold the sPAPRConfigureConnectorState substructure directly into the
DRC object.
Previously the structure was allocated lazily when the configure-connector
call discovers it's not there. Now, we need to initialize the subfields
pre-emptively, as soon as we enter UNISOLATE state.
Although it's not strictly necessary (the field values should only ever
be consulted when in UNISOLATE state), we try to keep them at -1 when in
other states, as a debugging aid.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
Each DRC has three fields describing its state: isolation_state,
allocation_state and configured. At first this seems like a reasonable
representation, since its based directly on the PAPR defined
isolation-state and allocation-state indicators. However:
* Only a few combinations of the two fields' values are permitted
* allocation_state isn't used at all for physical DRCs
* The indicators are write only so they don't really have a well
defined current value independent of each other
This replaces these variables with a single state variable, whose names
and numbers are based on the diagram in LoPAPR section 13.4. Along with
this we add code to check the current state on various operations and make
sure the requested transition is permitted.
Strictly speaking, this makes guest visible changes to behaviour (since we
probably allowed some transitions we shouldn't have before). However, a
hypothetical guest broken by that wasn't PAPR compliant, and probably
wouldn't have worked under PowerVM.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
'awaiting_release' indicates that the host has requested an unplug of the
device attached to the DRC, but the guest has not (yet) put the device
into a state where it is safe to complete removal.
1. Rename it to 'unplug_requested' which to me at least is clearer
2. Remove the ->release_pending() method used to check this from outside
spapr_drc.c. The method only plausibly has one implementation, so use
a plain function (spapr_drc_unplug_requested()) instead.
3. Remove it from the migration stream. Attempting to migrate mid-unplug
is broken not just for spapr - in general management has no good way to
determine if the device should be present on the destination or not. So,
until that's fixed, there's no point adding extra things to the stream.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
This function has two unused parameters - remove them.
It also sets awaiting_release on all paths, except one. On that path
setting it is harmless, since it will be immediately cleared by
spapr_drc_release(). So factor it out of the if statements.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
