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Adds support to compile QEMU with multiple tracing backends at the same time.
For example, you can compile QEMU with:
$ ./configure --enable-trace-backends=ftrace,dtrace
Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system.
This patch allows having both available without recompiling QEMU.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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At the moment QEMU exits if trace point is not defined which makes
a developer life harder if he has to switch between branches with
different traces implemented.
This replaces error+exit wit WARNING if the tracepoint does not exist or
not traceable.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Extract the pid field from the trace record and print it.
Change the trace record tuple from:
(event_num, timestamp, arg1, ..., arg6)
to:
(event_num, timestamp, pid, arg1, ..., arg6)
Trace event methods now support 3 prototypes:
1. <event-name>(arg1, arg2, arg3)
2. <event-name>(timestamp, arg1, arg2, arg3)
3. <event-name>(timestamp, pid, arg1, arg2, arg3)
Existing script continue to work without changes, they only know about
prototypes 1 and 2.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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It is useful to know the QEMU process ID when working with traces from
multiple VMs. Although the trace filename may contain the pid, tools
that aggregate traces or even trace globally need somewhere to record
the pid.
There is a reserved field in the trace event header struct that we can
use.
It is not necessary to bump the simpletrace file format version number
because it has already been incremented for the QEMU 2.1 release cycle
in commit "trace: [simple] Bump up log version number".
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Do not special-case addresses with zero host part, as we do not
necessarily know how big it is, and the guest can fake them anyway.
Silently avoid having 0.0.0.0 as a destination, however.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
[Edgar: Minor change to subject]
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
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The wrapper functions _t_gen_mov_TN_env and _t_gen_mov_env_TN are only
used via their accompanying non-underscore macros. The check they add
on offset is thus pointless, since the compiler will complain if the
struct field passed to the macro is not part of the struct. Remove the
functions and make the macros directly expand to the appropriate
tcg_gen_{ld,st}_tl calls.
This conveniently avoids a warning due to _t_gen_mov_TN_env() being
unused.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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Remove the t_gen_mov_TN_reg and t_gen_mov_reg_TN wrappers: the
latter is completely unused, and the former only used in a few
places (which are thus inconsistent with the rest of the decoder
which directly accesses cpu_R[]).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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SysBusDevice::init is depracated. Convert to Object::init
as prescribed by QOM conventions.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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SysBusDevice::init is depracated. Convert to Object::init and
Device::realize as prescribed by QOM conventions.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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This refresh of the device state is intended to be a reset side
effect. Move it to a proper reset handler rather than do it at
init time.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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SysBusDevice::init is depracated. Convert to Object::init and
Device::realize as prescribed by QOM conventions.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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This zeroing-out of the rxbuf variable (ping pong state) is a reset
side effect. Extract into a proper reset.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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SysBusDevice::init is depracated. Convert to Object::init and
Device::realize as prescribed by QOM conventions.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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* remotes/mcayland/qemu-sparc:
apb: implement IOMMU translation for PCI host bridge
apb: handle reading/writing of IOMMU control registers
apb: fix IOMMU register sizes
apb: Move IOMMU registers into a separate IOMMUState struct
tcx: move initialisation from realizefn to initfn
tcx: move initialisation from SysBusDevice class to TCX class realizefn
cg3: add extra check to prevent CG3 register array overflow
cg3: move initialisation from realizefn to initfn
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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* remotes/mdroth/qga-pull-2014-06-05:
qga: Fix handle fd leak in acquire_privilege()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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pc,pci,virtio,qdev fixes, tests
new tests for SMBIOS
SMBIOS fixes
pc, pci fixes
qdev patches stayed on list for a month with no review,
as I told people on KVM forum I'm merging stuch patches
if they look fine.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/mst/tags/for_upstream:
qdev: Add test of qdev_prop_check_global
qdev: Display warning about unused -global
tests: add smbios testing
tests: rename acpi-test to bios-tables-test
virtio-balloon: return empty data when no stats are available
pcie_host: Turn pcie_host_init() into an instance_init
SMBIOS: Fix type 17 field sizes
SMBIOS: Update Type 0 struct generator for machines >= 2.1
SMBIOS: Fix endian-ness when populating multi-byte fields
serial-pci: Set prog interface field of pci config to 16550 compatible
Conflicts:
include/hw/i386/pc.h
[PMM: fixed trivial conflict in pc.h]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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* remotes/bonzini/softmmu-smap: (33 commits)
target-i386: cleanup x86_cpu_get_phys_page_debug
target-i386: fix protection bits in the TLB for SMEP
target-i386: support long addresses for 4MB pages (PSE-36)
target-i386: raise page fault for reserved bits in large pages
target-i386: unify reserved bits and NX bit check
target-i386: simplify pte/vaddr calculation
target-i386: raise page fault for reserved physical address bits
target-i386: test reserved PS bit on PML4Es
target-i386: set correct error code for reserved bit access
target-i386: introduce support for 1 GB pages
target-i386: introduce do_check_protect label
target-i386: tweak handling of PG_NX_MASK
target-i386: commonize checks for PAE and non-PAE
target-i386: commonize checks for 4MB and 4KB pages
target-i386: commonize checks for 2MB and 4KB pages
target-i386: fix coding standards in x86_cpu_handle_mmu_fault
target-i386: simplify SMAP handling in MMU_KSMAP_IDX
target-i386: fix kernel accesses with SMAP and CPL = 3
target-i386: move check_io helpers to seg_helper.c
target-i386: rename KSMAP to KNOSMAP
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
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While the registers are documented as being 64-bit, Linux seems to access
them in two halves as 2 x 32-bit accesses. Make sure that we can correctly
handle this case.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
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According to the referenced documentation, the IOMMU has 3 64-bit registers
consisting of a control register, base register and flush register.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
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Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
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Initialisation cleanup as suggested by Andreas.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Andreas Färber <afaerber@suse.de>
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This is an intermediate step to bring TCX in line with CG3.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Andreas Färber <afaerber@suse.de>
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The case statements in the CG3 read and write register routines have a maximum
value of CG3_REG_SIZE, so if a value were written to this offset then it
would overflow the register array.
Currently this cannot be exploited since the MemoryRegion restricts accesses
to the range 0 ... CG3_REG_SIZE - 1, but it seems worth clarifying this for
future review and/or static analysis.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Paolo Bonzini <pbonzini@redhat.com>
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Initialisation cleanup as suggested by Andreas.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Andreas Färber <afaerber@suse.de>
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* remotes/rth/tcg-next:
TCG: Fix tcg_gen_extr_i64_tl for 32bit
tcg: Remove TCG_TARGET_HAS_new_ldst
tci: Convert to new ldst opcodes
tcg-i386: Fix win64 qemu store
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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* remotes/kvm/uq/master:
kvm: Fix eax for cpuid leaf 0x40000000
kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
kvm: Enable -cpu option to hide KVM
kvm: Ensure negative return value on kvm_init() error handling path
target-i386: set CC_OP to CC_OP_EFLAGS in cpu_load_eflags
target-i386: get CPL from SS.DPL
target-i386: rework CPL checks during task switch, preparing for next patch
target-i386: fix segment flags for SMM and VM86 mode
target-i386: Fix vm86 mode regression introduced in fd460606fd6f.
kvm_stat: allow choosing between tracepoints and old stats
kvmclock: Ensure time in migration never goes backward
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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updates for docs/multiseat.txt
input: add support for kbd delays
# gpg: Signature made Wed 04 Jun 2014 08:22:39 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-input-10:
docs/multiseat.txt: add note about spice
docs/multiseat.txt: gtk joined the party
docs/multiseat.txt: use autoseat
input/vnc: use kbd delays in press_key
input/curses: add kbd delay between keydown and keyup events
input: use kbd delays for send_key monitor command
input: add support for kbd delays
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This will generate a warning from "make check":
...
GTESTER tests/test-qdev-global-props
Warning: "-global dynamic-prop-type-bad.prop3=103" not used
GTESTER tests/check-qom-interface
...
If the warning is not generated, the test will fail.
Signed-off-by: Don Slutz <dslutz@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
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This can help a user understand why -global was ignored.
For example: with "-vga cirrus"; "-global vga.vgamem_mb=16" is just
ignored when "-global cirrus-vga.vgamem_mb=16" is not.
This is currently clear when the wrong property is provided:
out/x86_64-softmmu/qemu-system-x86_64 -global cirrus-vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
qemu-system-x86_64: Property '.vram_size_mb' not found
Aborted (core dumped)
vs
out/x86_64-softmmu/qemu-system-x86_64 -global vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
VNC server running on `::1:5900'
^Cqemu: terminating on signal 2
Signed-off-by: Don Slutz <dslutz@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
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Make the code a bit more similar to x86_cpu_handle_mmu_fault.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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User pages must be marked as non-executable when running under SMEP;
otherwise, fetching the page first and then calling it will fail.
With this patch, all SMEP testcases in kvm-unit-tests now pass.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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4MB pages can use 40-bit addresses by putting the higher 8 bits in bits
20-13 of the PDE. Bit 21 is reserved.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In large pages, bit 12 is for PAT, but bits starting at 13 are reserved.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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They can moved to after the dirty bit processing, and unified between
CR0.PG=1 and CR0.PG=0.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The correct error code is 9 (present, reserved), not 8.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Given the simplifications to the code in the previous patches, this
is now very simple to do.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This will help adding 1GB page support in the next patch.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Remove the tail of the PAE case, so that we can use "goto" in the
next patch to jump to the protection checks.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Do not use this MMU index at all if CR4.SMAP is false, and drop
the SMAP check from x86_cpu_handle_mmu_fault.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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With SMAP, implicit kernel accesses from user mode always behave as
if AC=0. To do this, kernel mode is not anymore a separate MMU mode.
Instead, KERNEL_IDX is renamed to KSMAP_IDX and the kernel mode accessors
wrap KSMAP_IDX and KNOSMAP_IDX.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Prepare for adding _kernel accessors there in the next patch.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This is the mode where SMAP is overridden, put "NO" in its name.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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