Ensure that all log writes are protected by qemu_loglevel_mask or,
in serious cases, go to both the log and stderr.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Avoid "naked" qemu_log, bring documentation for DEBUG #defines
up to date.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In some cases, the same message is printed both on stderr and in the log.
Avoid duplicate output in the default case where stderr _is_ the log,
and standardize this to stderr+log where it used to use stdio+log.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Our QA team wants to preserve serial output of the guest in between QEMU
runs to perform post-analysis.
By default this behavior is off (file is truncated each time QEMU is
started or device is plugged).
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Markus Armbruster <armbru@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1449211324-17856-1-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds support for split IRQ chip mode. When
KVM_CAP_SPLIT_IRQCHIP is enabled:
1.) The PIC, PIT, and IOAPIC are implemented in userspace while
the LAPIC is implemented by KVM.
2.) The software IOAPIC delivers interrupts to the KVM LAPIC via
kvm_set_irq. Interrupt delivery is configured via the MSI routing
table, for which routes are reserved in target-i386/kvm.c then
configured in hw/intc/ioapic.c
3.) KVM delivers IOAPIC EOIs via a new exit KVM_EXIT_IOAPIC_EOI,
which is handled in target-i386/kvm.c and relayed to the software
IOAPIC via ioapic_eoi_broadcast.
Signed-off-by: Matt Gingell <gingell@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds the initial plumbing for split IRQ chip mode via
KVM_CAP_SPLIT_IRQCHIP. In addition to option processing, a number of
kvm_*_in_kernel macros are defined to help clarify which component is
where.
Signed-off-by: Matt Gingell <gingell@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Hyper-V SynIC timers are host timers that are configurable
by guest through corresponding MSR's (HV_X64_MSR_STIMER*).
Guest setup and use fired by host events(SynIC interrupt
and appropriate timer expiration message) as guest clock
events.
The state of Hyper-V SynIC timers are stored in corresponding
MSR's. This patch seria implements such MSR's support and migration.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: "Andreas Färber" <afaerber@suse.de>
CC: Marcelo Tosatti <mtosatti@redhat.com>
CC: Denis V. Lunev <den@openvz.org>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: kvm@vger.kernel.org
Message-Id: <1448464885-8300-3-git-send-email-asmetanin@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
'hyperv-testdev' will be used by kvm-unit-tests
to setup Hyper-V SynIC SINT's routing and to inject
Hyper-V SynIC SINT's.
Hyper-V test device is ISA type device that creates 0x3000
IO memory region and catches write access into it. Every
write operation data decoded into ctl code and parameters
for Hyper-V test device.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: "Andreas Färber" <afaerber@suse.de>
CC: Marcelo Tosatti <mtosatti@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch does Hyper-V Synthetic interrupt
controller(Hyper-V SynIC) MSR's support and
migration. Hyper-V SynIC is enabled by cpu's
'hv-synic' option.
This patch does not allow cpu creation if
'hv-synic' option specified but kernel
doesn't support Hyper-V SynIC.
Changes v3:
* removed 'msr_hv_synic_version' migration because
it's value always the same
* moved SynIC msr's initialization into kvm_arch_init_vcpu
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: "Andreas Färber" <afaerber@suse.de>
CC: Marcelo Tosatti <mtosatti@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Following the previous patch which changed pvscsi to be a pci express
device, this patch introduces a boolean property 'x-disable-pcie'.
Its default value is false, exposing pvscsi as a pcie device.
Setting 'x-disable-pcie' to 'on' preserves the old 'pci device' (non
express) behavior. This allows migration to older versions.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-7-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Report the 'express endpoint' capability if on a PCIE bus.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-6-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Introduce a class type for pvscsi, and the usual
DEVICE_CLASS/DEVICE_GET_CLASS macros.
No semantic change.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-5-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Following the previous patches, which introduced various changes in
pvscsi's pci configuration space (device subsystem id and revision, msi
offset), this patch introduces a boolean property
'x-old-pci-configuration' to pvscsi.
Its default value is false, exposing the above changes in the pci config
space.
Setting 'x-old-pci-configuration' to 'on' preserves the old behavior,
which allows migration to older versions.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-4-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Place device reported MSI capability at the same offset as placed by
the VMware virtual hardware - at offset 0x7c.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-3-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
To be VMware PVSCSI SCSI Controller, rev 02.
As reported by the VMware virtual hardware.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-2-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The ioeventfd mechanism is used by vhost, dataplane, and virtio-pci to
turn guest MMIO/PIO writes into eventfd file descriptor events. This
allows arbitrary threads to be notified when the guest writes to a
specific MMIO/PIO address.
qtest and TCG do not support ioeventfd because memory writes are not
checked against registered ioeventfds in QEMU. This patch implements
this in memory_region_dispatch_write() so qtest can use ioeventfd.
Also this patch fixes vhost aborting on some misconfigured old kernels
like 3.18.0 on ARM. It is possible to explicitly enable CONFIG_EVENTFD
in expert settings, while MMIO binding support in KVM will still be
missing.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-Id: <006e01d12377$0b9c2d40$22d487c0$@samsung.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Just noticed this while grepping TARGET_PAGE_SIZE for an unrelated
reason. I didn't use qemu_real_host_page_size as kvm_set_phys_mem()
does, because we'd need to make sure page_size_init() has run first.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1447115022-4142-1-git-send-email-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The only code that sets RAMBlock.fd is file_ram_alloc(), and the only
code that calls file_ram_alloc() sets the RAM_FILE flag. That means the
flag is always set when RAMBlock.fd >= 0, and the munmap() call at
reclaim_ramblock() is dead code that never runs.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446847881-9385-1-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The function is equivalent to memory_region_destructor_ram(), so
it's not needed anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446844805-14492-3-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace qemu_ram_free_from_ptr() with qemu_ram_free().
The only difference between qemu_ram_free_from_ptr() and
qemu_ram_free() is that g_free_rcu() is used instead of
call_rcu(reclaim_ramblock). We can safely replace it because:
* RAM blocks allocated by qemu_ram_alloc_from_ptr() always have
RAM_PREALLOC set;
* reclaim_ramblock(block) will do nothing except g_free(block)
if RAM_PREALLOC is set at block->flags.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446844805-14492-2-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* i.MX CCM patches
* support guest debug for AArch64 KVM
* support power button on virt board via GPIO
* clean up AArch32 singlestep code
* raise exception on misaligned LDREX operands
* soc-dma: use hwaddr instead of target_ulong in printf
* explicitly mark some ARM device loads as little-endian
* i.MX: add support for lower and upper interrupt in GPIO
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20151217-1' into staging
target-arm queue:
* i.MX CCM patches
* support guest debug for AArch64 KVM
* support power button on virt board via GPIO
* clean up AArch32 singlestep code
* raise exception on misaligned LDREX operands
* soc-dma: use hwaddr instead of target_ulong in printf
* explicitly mark some ARM device loads as little-endian
* i.MX: add support for lower and upper interrupt in GPIO
# gpg: Signature made Thu 17 Dec 2015 13:38:09 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
* remotes/pmaydell/tags/pull-target-arm-20151217-1: (25 commits)
i.MX: Add an i.MX25 specific CCM class/instance
i.MX: Split the CCM class into an abstract base class and a concrete class
i.MX: rename i.MX CCM get_clock() function and CLK ID enum names
i.MX: Fix i.MX31 default/reset configuration
tests/guest-debug: introduce basic gdbstub tests
target-arm: kvm - re-inject guest debug exceptions
target-arm: kvm - add support for HW assisted debug
target-arm: kvm - support for single step
target-arm: kvm - implement software breakpoints
target-arm: kvm64 - introduce kvm_arm_init_debug()
ARM: Virt: Add gpio-keys node for Poweroff using DT
ARM: Virt: Add QEMU powerdown notifier and hook it to GPIO Pin 3
ARM: ACPI: Add _E03 for Power Button
ACPI: Add aml_gpio_int() wrapper for GPIO Interrupt Connection
ACPI: Add GPIO Connection Descriptor
ARM: ACPI: Add power button device in ACPI DSDT table
ARM: ACPI: Add GPIO controller in ACPI DSDT table
ARM: Virt: Add a GPIO controller
acpi: extend aml_interrupt() to support multiple irqs
acpi: support serialized method
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
With this CCM, i.MX25 timer is accurate with "real world time".
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Message-id: 2c0cf90be767bfc8520661eca891ab22c61f18fe.1449528242.git.jcd@tribudubois.net
Reviewed-by Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The IMX_CCM class is now the base abstract class that is used by EPIT
and GPT timer implementation.
IMX31_CCM class is the concrete class implementing CCM for i.MX31 SOC.
For now the i.MX25 continues to use the i.MX31 CCM implementation.
An i.MX25 specific CCM will be introduced in a later patch.
We also rework initialization to stop using deprecated sysbus device init.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: fd3c7f87b50f5ebc99ec91f01413db35017f116d.1449528242.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is to prepare for CCM code refactoring.
This is just a bit of function and enum values renaming.
We also remove some useless intermediate variables.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 53c4d9b9611988a5f56f178f285e04490747925e.1449528242.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Linux on i.MX31/KZM is expecting the CCM to use the CKIH ref clock
instead of the CKIL plus the FPM multiplier.
We change the CCMR reg reset value to match linux expected config.
This allows the CCM to provide a 39MHz clk (as expected by linux)
instead of the actual 50MHz.
With this change the "sleep 60" command on linux is time accurate
with "real world time".
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 6dc5bc4e0a450b20cecdb2991112e7281b653345.1449528242.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The aim of these tests is to combine with an appropriate kernel
image (with symbol-file vmlinux) and check it behaves as it should.
Given a kernel it checks:
- single step
- software breakpoint
- hardware breakpoint
- access, read and write watchpoints
On success it returns 0 to the calling process.
I've not plumbed this into the "make check" logic though as we need a
solution for providing non-host binaries to the tests. However the test
is structured to work with pretty much any Linux kernel image as it
uses the basic kernel_init code which is common across architectures.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-7-git-send-email-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If we can't find details for the debug exception in our debug state
then we can assume the exception is due to debugging inside the guest.
To inject the exception into the guest state we re-use the TCG exception
code (do_interrupt).
However while guest debugging is in effect we currently can't handle the
guest using single step as we will keep trapping to back to userspace.
GDB makes heavy use of single-step behind the scenes which effectively
means the guest's ability to debug itself is disabled while it is being
debugged.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-6-git-send-email-alex.bennee@linaro.org
[PMM: Fixed a few typos in comments and commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This adds basic support for HW assisted debug. The ioctl interface to
KVM allows us to pass an implementation defined number of break and
watch point registers. When KVM_GUESTDBG_USE_HW is specified these
debug registers will be installed in place on the world switch into the
guest.
The hardware is actually capable of more advanced matching but it is
unclear if this expressiveness is available via the gdbstub protocol.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-5-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This adds support for single-step. There isn't much to do on the QEMU
side as after we set-up the request for single step via the debug ioctl
it is all handled within the kernel.
The actual setting of the KVM_GUESTDBG_SINGLESTEP flag is already in the
common code. If the kernel doesn't support guest debug the ioctl will
simply error.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-4-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
These don't involve messing around with debug registers, just setting
the breakpoint instruction in memory. GDB will not use this mechanism if
it can't access the memory to write the breakpoint.
All the kernel has to do is ensure the hypervisor traps the breakpoint
exceptions and returns to userspace.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-3-git-send-email-alex.bennee@linaro.org
[PMM: Fixed typo in comment]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As we haven't always had guest debug support we need to probe for it.
Additionally we don't do this in the start-up capability code so we
don't fall over on old kernels.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-2-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a gpio-keys node. This is used for Poweroff for the systems which
use DT not ACPI.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Wei Huang <wei@redhat.com>
Message-id: 1449804086-3464-11-git-send-email-zhaoshenglong@huawei.com
[PMM: use "standard-headers/linux/input.h" rather than <linux/input.h>]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Currently mach-virt model doesn't support powerdown request. Guest VM
doesn't react to system_powerdown from monitor console (or QMP) because
there is no communication mechanism for such requests. This patch registers
GPIO Pin 3 with powerdown notification. So guest VM can receive notification
when such powerdown request is triggered.
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Wei Huang <wei@redhat.com>
Tested-by: Wei Huang <wei@redhat.com>
Message-id: 1449804086-3464-10-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Here GPIO pin 3 is used for Power Button, add _E03 in ACPI DSDT table.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Wei Huang <wei@redhat.com>
Message-id: 1449804086-3464-9-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add GPIO controller in ACPI DSDT table. It can be used for gpio event.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Wei Huang <wei@redhat.com>
Message-id: 1449804086-3464-5-git-send-email-zhaoshenglong@huawei.com
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ACPI 5.0 supports GPIO-signaled ACPI Events. This can be used for
powerdown, hotplug evnets. Add a GPIO controller in machine virt,
to support powerdown, maybe can be used for cpu hotplug. And
here we use pl061.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Wei Huang <wei@redhat.com>
Tested-by: Wei Huang <wei@redhat.com>
Message-id: 1449804086-3464-4-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ASL Interrupt() macro translates to Extended Interrupt Descriptor
which supports variable number of IRQs. It will be used for
conversion of ASL code for pc/q35 machines that use it for
returning several IRQs in _PSR object.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1449804086-3464-3-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Paolo Bonzini
Olga Krishtal
Matt Gingell
Andrey Smetanin
Shmulik Ladkani
Pavel Fedin
Andrew Jones
Eduardo Habkost
Peter Maydell
Jean-Christophe Dubois
Alex Bennée
Shannon Zhao
Igor Mammedov