The property can take values on, off or auto. The default is "off"
for KVM and pre-2.4 machines, otherwise "auto" (which makes it
available on TCG or on new-enough kernels).
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
pc_dimm_plug() has code that will be needed for memory plug handlers
in other archs too. Extract code from pc_dimm_plug() into a generic
routine pc_dimm_memory_plug() that resides in pc-dimm.c. Also
correspondingly refactor re-usable unplug code into pc_dimm_memory_unplug().
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Move hotplug_memory_base and hotplug_memory fields of PCMachineState
into a separate structure so that the same can be made use of from
other architectures supporing memory hotplug.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Remove cpu_smm_register and cpu_smm_update. Instead, each CPU
address space gets an extra region which is an alias of
/machine/smram. This extra region is enabled or disabled
as the CPU enters/exits SMM.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
pc, acpi, virtio, tpm
This includes pxb support by Marcel, as well as multiple enhancements all over
the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu Jun 4 11:51:02 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (28 commits)
vhost: logs sharing
hw/acpi: piix4_pm_init(): take fw_cfg object no more
hw/acpi: move "etc/system-states" fw_cfg file from PIIX4 to core
hw/acpi: acpi_pm1_cnt_init(): take "disable_s3" and "disable_s4"
pc-dimm: don't assert if pc-dimm alignment != hotpluggable mem range size
docs: Add PXB documentation
apci: fix PXB behaviour if used with unsupported BIOS
hw/pxb: add numa_node parameter
hw/pci: add support for NUMA nodes
hw/pxb: add map_irq func
hw/pci: inform bios if the system has extra pci root buses
hw/pci: introduce PCI Expander Bridge (PXB)
hw/pci: removed 'rootbus nr is 0' assumption from qmp_pci_query
hw/acpi: remove from root bus 0 the crs resources used by other buses.
hw/acpi: add _CRS method for extra root busses
hw/apci: add _PRT method for extra PCI root busses
hw/acpi: add support for i440fx 'snooping' root busses
hw/pci: extend PCI config access to support devices behind PXB
hw/i386: query only for q35/pc when looking for pci host bridge
hw/pci: made pci_bus_num a PCIBusClass method
...
Conflicts:
hw/i386/pc_piix.c
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
trivial patches for 2015-06-03
# gpg: Signature made Wed Jun 3 14:07:47 2015 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg: aka "Michael Tokarev <mjt@corpit.ru>"
# gpg: aka "Michael Tokarev <mjt@debian.org>"
* remotes/mjt/tags/pull-trivial-patches-2015-06-03: (30 commits)
configure: postfix --extra-cflags to QEMU_CFLAGS
cadence_gem: Fix Rx buffer size field mask
slirp: use less predictable directory name in /tmp for smb config (CVE-2015-4037)
translate-all: delete prototype for non-existent function
Add -incoming help text
hw/display/tc6393xb.c: Fix misusing qemu_allocate_irqs for single irq
hw/arm/nseries.c: Fix misusing qemu_allocate_irqs for single irq
hw/alpha/typhoon.c: Fix misusing qemu_allocate_irqs for single irq
hw/unicore32/puv3.c: Fix misusing qemu_allocate_irqs for single irq
hw/lm32/milkymist.c: Fix misusing qemu_allocate_irqs for single irq
hw/lm32/lm32_boards.c: Fix misusing qemu_allocate_irqs for single irq
hw/ppc/prep.c: Fix misusing qemu_allocate_irqs for single irq
hw/sparc/sun4m.c: Fix misusing qemu_allocate_irqs for single irq
hw/timer/arm_timer.c: Fix misusing qemu_allocate_irqs for single irq
hw/isa/i82378.c: Fix misusing qemu_allocate_irqs for single irq
hw/isa/lpc_ich9.c: Fix misusing qemu_allocate_irqs for single irq
hw/i386/pc: Fix misusing qemu_allocate_irqs for single irq
hw/intc/exynos4210_gic.c: Fix memory leak by adjusting order
hw/arm/omap_sx1.c: Fix memory leak spotted by valgrind
hw/ppc/e500.c: Fix memory leak
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The bios looks for 'etc/extra-pci-roots' to decide if
is going to scan further buses after bus 0 tree.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Since pc_allocate_cpu_irq only requests one irq, so let it just call
qemu_allocate_irq.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Setting the parent bus of a device increases its ref count, which we
ultimately want to level out. However it is only safe to do so after the
last reference to the device in local code, as qom-set or similar operations
might decrease the ref count.
Therefore move the object_unref() from pc_new_cpu() into its callers.
The APIC operations on the last CPU in pc_cpus_init() are still potentially
insecure, but that is beyond the scope of this code movement.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Even if board code decides not to request the creation of the FDC (keyed
off board-level factors, to be determined later), we should create the FDC
nevertheless if the user passes '-drive if=floppy' on the command line.
Otherwise '-drive if=floppy' would break without explicit '-device
isa-fdc' on such boards.
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: "Gabriel L. Somlo" <gsomlo@gmail.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This patch introduces no observable change, but it allows the callers of
pc_basic_device_init(), ie. pc_init1() and pc_q35_init(), to request (or
not request) the creation of the FDC explicitly.
At the moment both callers pass constant create_fdctrl=true (hence no
observable change).
Assuming a board passes create_fdctrl=false, "floppy" will be NULL on
output, and (beyond the FDC not being created) that NULL will be passed on
to pc_cmos_init(). Luckily, pc_cmos_init() already handles that case.
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: "Gabriel L. Somlo" <gsomlo@gmail.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
The helper is not needed anymore, as the PC machine classes are
registered using QOM directly.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch adds unplug cb for memory device. It resets memory status
"is_enabled" in acpi_memory_unplug_cb(), removes the corresponding
memory region, unregisters vmstate, and unparents the object.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch adds unplug request cb for memory device, and adds the
is_removing boolean field to MemStatus. This field is used to indicate
whether the memory device in slot has been requested to be ejected.
This field is set to true in acpi_memory_unplug_request_cb().
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The fw_cfg documentation says this of the revision key (0x0001, FW_CFG_ID):
> A 32-bit little-endian unsigned int, this item is used as an interface
> revision number, and is currently set to 1 by all QEMU architectures
> which expose a fw_cfg device.
arm/virt doesn't. It could be argued that that's an error in
"hw/arm/virt.c"; on the other hand, all of the other fw_cfg providing
boards set the interface version to 1 manually, despite the device
coming from the same, shared implementation. Therefore, instead of
adding
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
to arm/virt, consolidate all such existing calls in the fw_cfg
initialization code.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Message-Id: <1426789244-26318-1-git-send-email-somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since commit
dd0247e0 pc: acpi: mark all possible CPUs as enabled in SRAT
Linux kernel actually tries to use CPU to Node mapping from
QEMU provided SRAT table instead of discarding it, and that
in some cases breaks build_sched_domains() which expects
sane mapping where cores/threads belonging to the same socket
are on the same NUMA node.
With current default round-robin mapping of VCPUs to nodes
guest ends-up with cores/threads belonging to the same socket
being on different NUMA nodes.
For example with following CLI:
qemu-system-x86_64 -m 4G \
-cpu Opteron_G3,vendor=AuthenticAMD \
-smp 5,sockets=1,cores=4,threads=1,maxcpus=8 \
-numa node,nodeid=0 -numa node,nodeid=1
2.6.32 based kernels will hang on boot due to incorrectly built
sched_group-s list in update_sd_lb_stats()
Replacing default mapping with a manual, where VCPUs belonging to
the same socket are on the same NUMA node, fixes the issue for
guests which can't handle nonsense topology i.e. changing CLI to:
-numa node,nodeid=0,cpus=0-3 -numa node,nodeid=1,cpus=4-7
So instead of simply scattering VCPUs around nodes, provide
callback to map the same socket VCPUs to the same NUMA node,
which is what guests would expect from a sane hardware/BIOS.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Instead of passing icc_bridge from the PC initialization code to
cpu_x86_create(), make the PC initialization code attach the CPU to
icc_bridge.
The only difference here is that icc_bridge attachment will now be done
after x86_cpu_parse_featurestr() is called. But this shouldn't make any
difference, as property setters shouldn't depend on icc_bridge.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The APIC ID compatibility code is required only for PC, and now that
x86_cpu_initfn() doesn't use x86_cpu_apic_id_from_index() anymore, that
code can be moved to pc.c.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
pci, pc, virtio fixes and cleanups
A bunch of fixes all over the place.
All of ACPI refactoring has been merged.
Legacy pci commands have been dropped.
virtio header cleanup
initial patches from virtio-1.0 branch
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/mst/tags/for_upstream: (130 commits)
acpi: drop unused code
aml-build: comment fix
acpi-build: fix typo in comment
acpi: update generated files
vhost user:support vhost user nic for non msi guests
aml-build: fix build for glib < 2.22
acpi: update generated files
Makefile.target: binary depends on config-devices
acpi-test-data: update after pci rewrite
acpi, mem-hotplug: use PC_DIMM_SLOT_PROP in acpi_memory_plug_cb().
pci-hotplug-old: Has been dead for five major releases, bury
pci: Give a few helpers internal linkage
acpi: make build_*() routines static to aml-build.c
pc: acpi: remove not used anymore ssdt-[misc|pcihp].hex.generated blobs
pc: acpi-build: drop template patching and create PCI bus tree dynamically
tests: ACPI: update pc/SSDT.bridge due to new alg of PCI tree creation
pc: acpi-build: simplify PCI bus tree generation
tests: add ACPI blobs for qemu with bridge cases
tests: bios-tables-test: add support for testing bridges
tests: ACPI test blobs update due to PCI0._CRS changes
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Conflicts:
hw/pci/pci-hotplug-old.c
QemuOpts: Convert various setters to Error
# gpg: Signature made Thu Feb 26 13:56:43 2015 GMT using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
* remotes/armbru/tags/pull-error-2015-02-26:
qtest: Use qemu_opt_set() instead of qemu_opts_parse()
pc: Use qemu_opt_set() instead of qemu_opts_parse()
qemu-sockets: Simplify setting numeric and boolean options
block: Simplify setting numeric options
qemu-img: Suppress unhelpful extra errors in convert, amend
QemuOpts: Propagate errors through opts_parse()
QemuOpts: Propagate errors through opts_do_parse()
QemuOpts: Drop qemu_opt_set(), rename qemu_opt_set_err(), fix use
block: Suppress unhelpful extra errors in bdrv_img_create()
qemu-img: Suppress unhelpful extra errors in convert, resize
QemuOpts: Convert qemu_opts_set() to Error, fix its use
QemuOpts: Convert qemu_opt_set_number() to Error, fix its use
QemuOpts: Convert qemu_opt_set_bool() to Error, fix its use
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This reverts commit b8a173b25c, reversing
changes made to 5de090464f.
(I applied this pull request when I should not have done so, and
am now immediately reverting it.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/ehabkost/tags/x86-pull-request:
target-i386: Move APIC ID compatibility code to pc.c
target-i386: Require APIC ID to be explicitly set before CPU realize
target-i386: Set APIC ID using cpu_index on CONFIG_USER
linux-user: Check for cpu_init() errors
target-i386: Move CPUX86State.cpuid_apic_id to X86CPU.apic_id
target-i386: Simplify error handling on cpu_x86_init_user()
target-i386: Eliminate cpu_init() function
target-i386: Rename cpu_x86_init() to cpu_x86_init_user()
target-i386: Move topology.h to include/hw/i386
target-i386: Eliminate unnecessary get_cpuid_vendor() function
target-i386: Simplify listflags() function
Conflicts:
target-i386/cpu.c
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
NUMA fixes queue
# gpg: Signature made Mon Feb 23 19:28:42 2015 GMT using RSA key ID 984DC5A6
# gpg: Can't check signature: public key not found
* remotes/ehabkost/tags/numa-pull-request:
numa: Rename set_numa_modes() to numa_post_machine_init()
numa: Rename option parsing functions
numa: Move QemuOpts parsing to set_numa_nodes()
numa: Make max_numa_nodeid static
numa: Move NUMA globals to numa.c
vl.c: Remove unnecessary zero-initialization of NUMA globals
numa: Move NUMA declarations from sysemu.h to numa.h
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the maxram_size is not aligned and dimm devices were added on the
command line qemu would terminate with a rather unhelpful message:
ERROR:hw/mem/pc-dimm.c:150:pc_dimm_get_free_addr: assertion failed:
(QEMU_ALIGN_UP(address_space_size, align) == address_space_size)
In case no dimm device was originally added on the commandline qemu
exits on the assertion failure.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Memory and CPU hot unplug are both asynchronous procedures.
When the unplug operation happens, unplug request cb is called first.
And when guest OS finished handling unplug, unplug cb will be called
to do the real removal of device.
This patch adds hotunplug cb to pc machine, which memory and CPU
hot unplug will use it.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Memory and CPU hot unplug are both asynchronous procedures.
They both need unplug request callback to initiate unplug operation.
Add unplug handler to pc machine that will be used by following
CPU and memory unplug patches.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The APIC ID compatibility code is required only for PC, and now that
x86_cpu_initfn() doesn't use x86_cpu_apic_id_from_index() anymore, that
code can be moved to pc.c.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
It's the same old loop copied five times, plus another instance where
it's clipped to two iterations and unrolled.
No external users of serial_isa_init() are left, so give it internal
linkage.
Maintainers of affected machines cc'ed.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Not all sysemu.h users need the NUMA declarations, and keeping them in a
separate file makes it easier to see what are the interfaces provided by
numa.c.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Now that pc_existing_dimms_capacity() is an API, include Error pointer
as an argument and modify the caller appropriately.
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Move pc_existing_dimms_capacity() to pc-dimm.c since it would be needed
by PowerPC memory hotplug code too.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
pc_existing_dimms_capacity() is returning DIMMs count rather than capacity.
Fix this to return the capacity. Also consider only realized devices for
capacity calculation.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
It will be useful for checking when we change traditional
boot order dynamically and propagate error message
to the monitor.
For x86 architecture, we pass &local_err to set_boot_dev()
when vm startup in pc_coms_init().
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
- Migration and linuxboot fixes for 2.2 regressions
- valgrind/KVM support
- small i386 patches
- PCI SD host controller support
- malloc/free cleanups from Markus (x86/scsi)
- IvyBridge model
- XSAVES support for KVM
- initial patches from record/replay
# gpg: Signature made Mon 15 Dec 2014 16:35:08 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (47 commits)
sdhci: Support SDHCI devices on PCI
sdhci: Define SDHCI PCI ids
sdhci: Add "sysbus" to sdhci QOM types and methods
sdhci: Remove class "virtual" methods
sdhci: Set a default frequency clock
serial: only resample THR interrupt on rising edge of IER.THRI
serial: update LSR on enabling/disabling FIFOs
serial: clean up THRE/TEMT handling
serial: reset thri_pending on IER writes with THRI=0
linuxboot: fix loading old kernels
kvm/apic: fix 2.2->2.1 migration
target-i386: add Ivy Bridge CPU model
target-i386: add f16c and rdrand to Haswell and Broadwell
target-i386: add VME to all CPUs
pc: add 2.3 machine types
i386: do not cross the pages boundaries in replay mode
cpus: make icount warp behave well with respect to stop/cont
timer: introduce new QEMU_CLOCK_VIRTUAL_RT clock
cpu-exec: invalidate nocache translation if they are interrupted
icount: introduce cpu_get_icount_raw
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer,
for two reasons. One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.
This commit only touches allocations with size arguments of the form
sizeof(T).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
c/s 9b23cfb76b
or
c/s b154537ad0
moved the testing of xen_enabled() from pc_init1() to
pc_machine_initfn().
xen_enabled() does not return the correct value in
pc_machine_initfn().
Changed vmport from a bool to an enum. Added the value "auto" to do
the old way. Move check of xen_enabled() back to pc_init1().
Acked-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
if DIMMs with different size/alignment are interleaved
in creation order, it could lead to hotplug-memory
container fragmentation and following inability to use
all RAM upto maxmem.
For example:
-m 4G,slots=3,maxmem=7G
-object memory-backend-file,id=mem-1,size=256M,mem-path=/pagesize-2MB
-device pc-dimm,id=mem1,memdev=mem-1
-object memory-backend-file,id=mem-2,size=1G,mem-path=/pagesize-1GB
-device pc-dimm,id=mem2,memdev=mem-2
-object memory-backend-file,id=mem-3,size=256M,mem-path=/pagesize-2MB
-device pc-dimm,id=mem3,memdev=mem-3
fragments hotplug-memory container and doesn't allow
to use 1GB hugepage backend to consume remainig 1Gb.
To ease managment factor count in max 1Gb alignment for
each memory slot when sizing hotplug-memory region so
that regadless of fragmentaion it would be possible to
add max aligned DIMM.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently maxmem limit is not checked and depends on
hotplug region container not being able to fit more RAM
than maxmem. Do check explicitly so that it would
be possible to change hotplug container size later
to deal with fragmentation.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Performance wise it's better to align GVA by the backend's
page size.
Also do not allow to create DIMM device with suboptimal
size (i.e. not aligned to backends page size) to aviod
memory loss.
Do above only for 2.2 and newer machine types to avoid
breaking working configs with 2.1 machine type.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When running in KVM mode, kvm_set_phys_mem() will silently
fail if registered MemoryRegion address/size is not page
aligned. Causing memory hotplug failure in guest.
Mapping non aligned MemoryRegion in TCG mode 'works', but
sane guest OS still expects page aligned memory module
and fails to initialize it if it's not aligned.
So do not allow non aligned (i.e. valid) address/size
values for DIMM to avoid either KVM failure or guest
issues caused by it.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
