Move dst calculation into the loop, so we apply the mask on each
interation and will not overflow vga memory.
Cc: Prasad J Pandit <pjp@fedoraproject.org>
Reported-by: Niu Guoxiang <niuguoxiang@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20171011084314.21752-1-kraxel@redhat.com
Commit "3d90c62548 vga: stop passing pointers to vga_draw_line*
functions" is incomplete. It doesn't handle the case that the vga
rendering code tries to create a shared surface, i.e. a pixman image
backed by vga video memory. That can not work in case the guest display
wraps from end of video memory to the start. So force shadowing in that
case. Also adjust the snapshot region calculation.
Can trigger with cirrus only, when programming vbe modes using the bochs
api (stdvga, also qxl and virtio-vga in vga compat mode) wrap arounds
can't happen.
Fixes: CVE-2017-13672
Fixes: 3d90c62548
Cc: P J P <ppandit@redhat.com>
Reported-by: David Buchanan <d@vidbuchanan.co.uk>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20171010141323.14049-3-kraxel@redhat.com
This makes the code easier to understand and it is consistent with what
we already do for PHBs.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
QEMU currently crashes when the user tries to add an spapr-pci-host-bridge
on a non-pseries machine:
$ qemu-system-ppc64 -M ppce500 -device spapr-pci-host-bridge,index=1
hw/ppc/spapr_pci.c:1535:spapr_phb_realize:
Object 0x1003dacae60 is not an instance of type spapr-machine
Aborted (core dumped)
The same thing happens with the deprecated but still available child type
spapr-pci-vfio-host-bridge.
Fix both by checking the machine type with object_dynamic_cast().
Reviewed-by: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
In order to prevent the guest from forcing the allocation of large amounts
of qemu memory (or host kernel memory, in the case of KVM HV), we limit
the size of Hashed Page Table (HPT) it is allowed to allocated, based on
its RAM size.
However, the current calculation is not correct: it only adds up the size
of plugged memory, ignoring the base memory size. This patch corrects it.
While we're there, use get_plugged_memory_size() instead of directly
calling pc_existing_dimms_capacity(). The only difference is that it
will abort on failure, which is right: a failure here indicates something
wrong within qemu.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Use a new DEFINE_TYPES() helper to simplify type registration
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
deduce core type directly from chip type instead of
maintaining type mapping in PnvChipClass::cpu_model.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
pnv core type definition doesn't have any fields that
require it to be defined at runtime. So replace code
that fills in TypeInfo at runtime with static TypeInfo
array that does the same at complie time.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
deduce cpu type directly from core type instead of
maintaining type mapping in PnvCoreClass::cpu_oc and doing
extra cpu_model parsing in pnv_core_class_init()
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
typically for cpus/core type names following convention is used
new_type_prefix-superclass_typename
make PNV core/chip to follow common convention.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
use common cpu_model prasing in vl.c and set default cpu_model
using generic MachineClass::default_cpu_type.
Beside of switching to generic infrastructure it solves several
issues.
* ppc_cpu_class_by_name() is used to deal with lower/upper case
and alias translations into actual cpu type, which fixes
'-M powernv -cpu power8' and '-M powernv -cpu power9_v1.0'
usecases which error out with:
'invalid CPU model 'FOO' for powernv machine'
* allows to switch to lower-case typenames in pnv chip/core name
(by convention typnames should be lower-case)
* replace aliased names /power8, power9, .../ with exact cpu model
names (i.e. typenames should be stable but aliases might decide to
point to other cpu model withi family or changed by kvm). It will
also help to simplify pnv_chip/core code and get rid of dependency
on cpu_model parsing.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[dwg: Updated to make DD2.0 as default POWER9 chip]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
use generic cpu_model parsing introduced by
(6063d4c0f vl.c: convert cpu_model to cpu type and set of global properties before machine_init())
it allows to:
* replace sPAPRMachineClass::tcg_default_cpu with
MachineClass::default_cpu_type
* drop cpu_parse_cpu_model() from hw/ppc/spapr.c and reuse
one in vl.c
* simplify spapr_get_cpu_core_type() by removing
not needed anymore recurrsion since alias look up
happens earlier at vl.c and spapr_get_cpu_core_type()
works only with resulted from that cpu type.
* spapr no more needs to parse/depend on being phased out
MachineState::cpu_model, all tha parsing done by generic
code and target specific callback.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
[dwg: Correct minor compile error]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
next commit will drop ppc_cpu_lookup_alias() declaration from header
and make it static which will break its last user ppc_cpu_class_by_name()
since ppc_cpu_class_by_name() defined before ppc_cpu_lookup_alias().
To avoid this move ppc_cpu_lookup_alias() right before
ppc_cpu_class_by_name().
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
consolidate 'host' core type registration by moving it from
KVM specific code into spapr_cpu_core.c, similar like it's
done in x86 target.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
replace sPAPRCPUCoreClass::cpu_class with cpu type name
since it were needed just to get that at points it were
accessed.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
spapr core type definition doesn't have any fields that
require it to be defined at runtime. So replace code
that fills in TypeInfo at runtime with static TypeInfo
array that does the same at complie time.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
there is a dedicated callback CPUClass::parse_features
which purpose is to convert -cpu features into a set of
global properties AND deal with compat/legacy features
that couldn't be directly translated into CPU's properties.
Create ppc variant of it (ppc_cpu_parse_featurestr) and
move 'compat=val' handling from spapr_cpu_core.c into it.
That removes a dependency of board/core code on cpu_model
parsing and would let to reuse common -cpu parsing
introduced by 6063d4c0
Set "max-cpu-compat" property only if it exists, in practice
it should limit 'compat' hack to spapr machine and allow
to avoid including machine/spapr headers in target/ppc/cpu.c
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
ppc_cpu_parse_features() is doing practically the same thing as
generic cpu_parse_cpu_model(). So remove duplicated impl. and
reuse generic one.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
DEFINE_TYPES() will help to simplify following routine patterns:
static void foo_register_types(void)
{
type_register_static(&foo1_type_info);
type_register_static(&foo2_type_info);
...
}
type_init(foo_register_types)
or
static void foo_register_types(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(type_infos); i++) {
type_register_static(&type_infos[i]);
}
}
type_init(foo_register_types)
with a single line
DEFINE_TYPES(type_infos)
where types have static definition which could be consolidated in
a single array of TypeInfo structures.
It saves us ~6-10LOC per use case and would help to replace
imperative foo_register_types() there with declarative style of
type registration.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
it will help to remove code duplication of registration
static types in places that have open coded loop to
perform batch type registering.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
LMB removal is completed only when the spapr_lmb_release callback
is called after all DRCs of the dimm are detached. During this
time, it is possible that a unplug request for the same dimm
arrives, trying to detach DRCs that were detached by the guest
in the first unplug_request.
BQL doesn't help in this case - the lock will prevent any concurrent
removal from happening until the end of spapr_memory_unplug_request
only. What happens is that the second unplug_request ends up calling
spapr_drc_detach in a DRC that were detached already, causing an
assert error in spapr_drc_detach (e.g
https://bugs.launchpad.net/qemu/+bug/1718118).
spapr_lmb_release uses a structure called sPAPRDIMMState, stored in the
spapr->pending_dimm_unplugs QTAIL, to track how many LMB DRCs are left
to be detached by the guest. When there are no more DRCs left, this
structure is deleted and the pc-dimm unplug handler is called to
finish the process.
This patch reuses the sPAPRDIMMState to allow unplug_request to know
if there is an ongoing unplug process for a given dimm, aborting the
unplug request in this case, by doing the following changes:
- in spapr_lmb_release callback, move the dimm state removal to the
end, after pc-dimm unplug handler. With this change we can check for
the existence of the dimm state to see if the unplug process is
done.
- use spapr_pending_dimm_unplugs_find in spapr_memory_unplug_request
to check if the dimm state exists. If positive, there is an unplug
operation already in progress for this dimm, meaning that we should
abort it and warn the user about it.
Fixes: https://bugs.launchpad.net/qemu/+bug/1718118
Signed-off-by: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
For POWER ISA v3.0, the XER bit CA32 needs to be set by the shift
right algebraic instructions whenever the CA bit is to be set. This
change affects the following instructions:
* Shift Right Algebraic Word (sraw[.])
* Shift Right Algebraic Word Immediate (srawi[.])
* Shift Right Algebraic Doubleword (srad[.])
* Shift Right Algebraic Doubleword Immediate (sradi[.])
Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At the moment the only POWER9 model which is listed in qemu is v1.0 (aka
"DD1"). This is a very early (read, buggy) version which will never be
released to the public - it was included in qemu only for the convenience
of those doing bringup on the early silicon. For bonus points, we actually
had its PVR incorrect in the table (0x004e0000 instead of 0x004e0100). We
also never actually implemented the differences in behaviour (read, bugs)
that marked DD1 in qemu.
Now that we know the PVR for the substantially better v2.0 (DD2) chip,
include it and make it the default POWER9 in qemu. For the time being we
leave the DD1 definition in place for the poor souls (read, me) who still
need to work with DD1 hardware.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The CAS buffer is provided by SLOF. A broken SLOF could pass a silly
size: either smaller than the diff header, in which case the current
code will try to allocate 16 Exabytes of memory and g_malloc0() will
abort, or bigger than the maximum memory provisioned for SLOF (ie,
40 Megabytes), which doesn't make sense. Both cases indicate that
SLOF has a bug.
Let's print out an explicit error message and exit since rebooting as
we do with other errors would only result in a reset loop.
Signed-off-by: Greg Kurz <groug@kaod.org>
[dwg: Fix format specifier that broke 32-bit builds]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We don't have any 460 or 460F CPUs in QEMU, so the init functions
are just dead code. Let's simply remove them (translate_init.c
is already big enough without them).
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The offset of the root node is guaranteed to be 0.
This doesn't fix anything, it's just trivial cleanup of the two
remaining places where this was done under hw/ppc.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Commit 4f7265f "ppc/ide/macio: Add missing registers" added two extra macio
registers but forgot to add them to the corresponding VMStateDescription.
The version number is bumped accordingly, although this will have little
effect given that the Mac machines are practically unmigratable.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: John Snow <jsnow@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Also add backends/tpm.c to the list of files.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
When using filter-mirror like the example below where the interface
'ndev0' does not exist on the host, QEMU crashes into segmentation
fault.
$ qemu-system-x86_64 -S -machine pc -netdev user,id=ndev0 -object filter-mirror,id=test-object,netdev=ndev0
This happens because the function filter_mirror_setup() does not check
if the device actually exists and still keep on processing calling
qemu_chr_find(). This patch fixes this issue.
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The struct OrIRQState has an unused member field in_irqs.
This is a legacy of earlier versions of the patch; the
code that used it was dropped from the final version of
the code that went into master, but we forgot to delete
the no-longer-used struct field. Do so now.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes a compiler warning:
/qemu/io/channel-websock.c:163:5: error:
function might be possible candidate for ‘gnu_printf’ format attribute
[-Werror=suggest-attribute=format]
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Comments explaining why we include a header tend to go bad. This
one's almost comical: not only doesn't qemu-options.hx use
MAP_POPULATE anymore (since commit ef36fa1, v2.0.0, 2013), even the
include it applies to got moved away in commit 02d0e09 (v2.7.0).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The header file was introduced by fbcc3e5 ("qemu-thread: optimize QemuLockCnt
with futexes on Linux", 2017-01-16) without header guards. Add them.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
vte_terminal_copy_clipboard() is deprecated in VTE 0.50.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
test introduced in 382176b4d7
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Gerd Hoffmann
Greg Kurz
David Gibson
Igor Mammedov
Daniel Henrique Barboza
Sandipan Das
Thomas Huth
Mark Cave-Ayland
Stefan Berger
Eduardo Otubo
Fam Zheng
Peter Maydell
Stefan Weil
Markus Armbruster
Marco A L Barbosa
Emilio G. Cota
Anthony PERARD
Carlo Marcelo Arenas Belón