fit_load_fdt() passes @errp to fit_image_addr(), then recovers from
ENOENT failures. Passing @errp is wrong, because it works only as
long as @errp is neither @error_fatal nor @error_abort. Error
recovery dereferences @errp. That's also wrong; see the big comment
in error.h. Error recovery can leave *errp pointing to a freed
Error object. Wrong, it must be null on success. Messed up in
commit 3eb99edb48 "loader-fit: Wean off error_printf()".
No caller actually passes such values, or uses *errp on success.
Fix anyway: splice in a local Error *err, and error_propagate().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191204093625.14836-8-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
legacy_acpi_cpu_plug_cb() dereferences @errp when
acpi_set_cpu_present_bit() fails. That's wrong; see the big comment
in error.h. Introduced in commit cc43364de7 "acpi/cpu-hotplug:
introduce helper function to keep bit setting in one place".
No caller actually passes null, and acpi_set_cpu_present_bit() can't
actually fail.
Fix anyway: drop acpi_set_cpu_present_bit()'s @errp parameter.
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20191204093625.14836-7-armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
When os_mem_prealloc() fails, file_ram_alloc() calls qemu_ram_munmap()
and returns null. Except it doesn't when its @errp argument is null,
because it checks for failure with (errp && *errp). Introduced in
commit 056b68af77 "fix qemu exit on memory hotplug when allocation
fails at prealloc time".
No caller actually passes null.
Fix anyway: splice in a local Error *err, and error_propagate().
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20191204093625.14836-6-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Declaring a local Error *err without initializer looks suspicious.
Fuse the declaration with the initialization to avoid that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191204093625.14836-5-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191204093625.14836-4-armbru@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191204093625.14836-3-armbru@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
qcrypto_tls_creds_load_cert() passes uninitialized GError *gerr by
reference to g_file_get_contents(). When g_file_get_contents() fails,
it'll try to set a GError. Unless @gerr is null by dumb luck, this
logs a ERROR_OVERWRITTEN_WARNING warning message and leaves @gerr
unchanged. qcrypto_tls_creds_load_cert() then dereferences the
uninitialized @gerr.
Fix by initializing @gerr properly.
Fixes: 9a2fd4347c
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191204093625.14836-2-armbru@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
-msg parameter "timestamp" defaults to "off" if you don't specify msg,
and to "on" if you do. Messed up right in commit 5e2ac51917 "add
timestamp to error_report()". Mostly harmless, because "timestamp" is
the only parameter, so "if you do" is "-msg ''", which nobody does.
Change the default to "off" no matter what.
While there, rename enable_timestamp_msg to error_with_timestamp, and
polish documentation.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191010081508.8978-1-armbru@redhat.com>
vga_init_vbe is now used only from ISA VGA cards. Since the alias is
not needed anymore, remove it (effectively reverting commit 8294a64d7f,
"vga: fix vram double-mapping with -vga std and -M pc-0.12", 2012-05-29)
and the now unused vbe_mapped field of VGACommonState. The function now
consists of a single memory_region_add_subregion call, so we can inline
it; this avoids incorrect usage from PCI cards.
Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Based-on: <05af415a-5058-98b4-4a12-9d093a30b1e3@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Now that the old pc-0.x machine types have been removed, we do not need
the old "rombar" hacks anymore.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209125248.5849-5-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Now that the old pc-0.x machine types have been removed, this config
knob is not required anymore.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209125248.5849-4-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Now that the old pc-0.x machine types are gone, we do not need
the "use_broken_id" hack anymore.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209125248.5849-3-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These machines can't be used reliably for migration anymore, quoting
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg04516.html :
"
due to the introduction of the memory API, the firmware is not
migrated correctly from source to destination. On QEMU <1.3 the
0xf0000-0xfffff area is basically a copy of the higher
0xffff0000-0xffffffff area, while on more recent versions it is
initialized with zeroes and the firmware copies from 0xffff0000 to
0xf0000. When you migrate from old to new QEMU, after reboot there's
nothing at 0xf0000 and bugs ensue.
"
The pc-0.x machines have been marked as deprecated since QEMU v4.0, so
it is time to remove them now.
And while we're at it, mark the remaining pc-1.x machine types
as deprecated now, too, so that we finally only have "pc-i440fx"
and "pc-q35" machine types left (apart from the non-versioned
"isapc" and "microvm") once we remove them in a couple of releases.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209125248.5849-2-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add the XEN_IGD_PASSTHROUGH Kconfig option.
Xen build has that option selected by default. Non-Xen builds now
have to select this feature manually.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191209095002.32194-7-philmd@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We can use a i440FX without the IGD passthrough host bridge.
Extract it into a new file, 'hw/pci-host/xen_igd_pt.c'.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191209095002.32194-6-philmd@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use definitions from "hw/pci/pci_regs.h".
This also helps when using git-grep.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209095002.32194-5-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We don't enforce the -Wsign-conversion CPPFLAG, but it doesn't hurt
to avoid this warning:
warning: implicit conversion changes signedness: 'int' to 'size_t' (aka 'unsigned long') [-Wsign-conversion]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209095002.32194-4-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Make the PCII440FXState structure public, so it can be used out of
this source file. This will allow us to extract the IGD Passthrough
Host Bridge, which is a children of the TYPE_I440FX_PCI_DEVICE.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209095002.32194-3-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Missed during the refactor in commits 14a026dd58 and 0f25d865a,
this file is now only about the i440FX chipset.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191209095002.32194-2-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <086c197db928384b8697edfa64755e2cb46c8100.1575685843.git.dirty@apple.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Legacy PCI device assignment has been already removed in commit ab37bfc7d6
("pci-assign: Remove"), but some codes remain unused.
CC: qemu-trivial@nongnu.org
Signed-off-by: Eiichi Tsukata <devel@etsukata.com>
Message-Id: <20191209072932.313056-1-devel@etsukata.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This refactors the load library of WHV libraries to make it more
modular. It makes a helper routine that can be called on demand.
This allows future expansion of load library/functions to support
functionality that is dependent on some feature being available.
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Message-Id: <MW2PR2101MB1116578040BE1F0C1B662318C0760@MW2PR2101MB1116.namprd21.prod.outlook.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since the start addr is already checked, to make sure the range is
aligned, checking the length is enough.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190712032704.7826-1-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These cover the remaining warnings from kernel-doc.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20191029162248.13383-7-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Create a bitops.rst which is just a container for the
kernel-doc comments in qemu/bitops.h.
This is mostly a test of the kernel-doc extension machinery.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-7-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix the problems with kernel-doc/sphinx syntax in the
doc comments for the shuffle and unshuffle functions:
* mismatch between comment and prototype for argument name
* the inline bit patterns need to be marked up so they
are processed properly and rendered as monospace
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-6-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Turn off Sphinx nitpicking as a temporary (?) measure so
sphinx builds complete even with warnings about missing
references.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-11-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-4-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Surprisingly, QEMU does have a pretty consistent doc comment style and
it is not very different from the Linux kernel's. Of the documentation
"sigils", only "#" separates the QEMU doc comment style from Linux's,
and it has 200+ instances vs. 6 for the kernel's '&struct foo' (all in
accel/tcg/translate-all.c), so it's clear that the two standards are
different in this respect. In addition, our structs are typedefed and
recognized by CamelCase names.
Adjust kernel-doc's parser for these two aspects of the QEMU coding
standards. The patch has been valid, with hardly any change, for over
two years, so it should not be an issue to keep kernel-doc in sync with
the Linux copy.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Import Linux's kernel-doc script as of commit 15e2544ed38a1e, as well
as the Sphinx extension to call kernel-doc according to the arguments
and parameters given to a reStructuredText directive.
The kernel-doc extension accepts a filename, which is relative to
the QEMU source tree root. The extension also notifies Sphinx about the
document dependency on the file, causing the document to be rebuilt when
the file has been changed.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since we are actually testing for the newer capng library, rename the
symbol to match.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use WITH_RCU_READ_LOCK_GUARD to avoid exiting colo_init_ram_cache
without releasing RCU.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The automatic rcu read lock maintenance works quite
nicely in this case where it previously relied on a comment to
delimit the lifetime and now has a block.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use RCU_READ_LOCK_GUARD and WITH_RCU_READ_LOCK_GUARD
to replace the manual rcu_read_(un)lock calls.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This device is only used by the PC machines. The pc.c file is
already big enough, with 2255 lines. By removing 113 lines of
it, we reduced it by 5%. It is now a bit easier to navigate
the file.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This one-line function is not very helpful, so remove it
by inlining the call to qdev_connect_gpio_out_named().
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
By using the TYPE_* definitions for devices, we can:
- quickly find where devices are used with 'git-grep'
- easily rename a device (one-line change).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The irq number is unsigned; we reject negative values. But -1
is used for the isairq array, which is declared unsigned! And
since we have a definition for the number of ISA IRQs, use it.
Based on a patch by Philippe Mathieu-Daudé.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All callers of ioapic_init_gsi() provide a parent. We want new
uses to follow the same good practice and provide the parent
name, so do not make this optional: assert the parent name is
provided, and simplify the code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Both gsi_handler() and kvm_pc_gsi_handler() have the same content,
except one comment. Move the comment, and de-duplicate the code.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are needed by microvm too, so move them outside of PC-specific files.
With this patch, microvm.c need not include pc.h anymore.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Convert the deprecated DPRINTF() macro to trace events.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add it to microvm as well, it is a generic property of the x86
architecture.
Suggested-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On x86, KVM needs some function from the PCI subsystem in order to set
up interrupt routes. Provide some stubs to support x86 machines that
lack PCI.
Reviewed-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Remove the need to include i386/pc.h to get to the i8259 functions.
This is enough to remove the inclusion of hw/i386/pc.h from all non-x86
files.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
