This reverts commit 9953f8822c.
While Markus's analysis is entirely correct, there are 1.6 patches
that fix the bug for real and without requiring machine type hacks.
Let's think of the children who will have to read this code, and
avoid a complicated mess of semantics that differ between <1.5,
1.5, and >1.5.
Conflicts:
hw/i386/pc_piix.c
hw/i386/pc_q35.c
include/hw/i386/pc.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1368189483-7915-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The Atom core (cpu name "n270" in QEMU speak) supports MOVBE. This is
needed when booting 3.8 and later linux kernels built with the MATOM
target because we require MOVBE in order to boot properly now.
Signed-off-by: Borislav Petkov <bp@suse.de>
[ehabkost: added compat code to disable MOVBE on pc-*-1.4 and older]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
X86CPU should have parent bus so it could provide bus for child APIC.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Provides a hotpluggable bus for APIC and CPU.
* icc-bridge will serve as a parent for icc-bus and provide
mmio mapping services to child icc-devices.
* icc-device will replace SysBusDevice as a parent of APIC
and IOAPIC devices.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Introduced when applying commit f81222b (audio: look for the ISA and
PCI buses, 2013-04-18).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1367330432-14417-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Introduce type constant and cast macro to obsolete DO_UPCAST().
Reuse type constant for PC machine compatibility settings.
Prepares for ISA realizefn.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1367093935-29091-4-git-send-email-afaerber@suse.de
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Use of a flash memory device for the BIOS was added in series "[PATCH
v10 0/8] PC system flash support", commit 4732dca..1b89faf, v1.1.
Flash vs. ROM is a guest-visible difference. Thus, flash use had to
be suppressed for machine types pc-1.0 and older. This was
accomplished by adding a dummy device "pc-sysfw" with property
"rom_only":
* Non-zero rom_only means "use ROM". Default for pc-1.0 and older.
* Zero rom_only means "maybe use flash". Default for newer machines.
Not only is the dummy device ugly, it was also retroactively added to
the older machine types! Fortunately, it's not guest-visible (thus no
immediate guest ABI breakage), and has no vmstate (thus no immediate
migration breakage). Breakage occurs only if the user unwisely
enables flash by setting rom_only to zero. Patch review FAIL #1.
Why "maybe use flash"? Flash didn't (and still doesn't) work with
KVM. Therefore, rom_only=0 really means "use flash, except when KVM
is enabled, use ROM". This is a Bad Idea, because it makes enabling/
disabling KVM guest-visible. Patch review FAIL #2.
Aside: it also precludes migrating between KVM on and off, but that's
not possible for other reasons anyway.
Fix as follows:
1. Change the meaning of rom_only=0 to mean "use flash, no ifs, buts,
or maybes" for pc-i440fx-1.5 and pc-q35-1.5. Don't change anything
for older machines (to remain bug-compatible).
2. Change the default value from 0 to 1 for these machines.
Necessary, because 0 doesn't work with KVM. Once it does, we can flip
the default back to 0.
3. Don't revert the retroactive addition of device "pc-sysfw" to older
machine types. Seems not worth the trouble.
4. Add a TODO comment asking for device "pc-sysfw" to be dropped once
flash works with KVM.
Net effect is that you get a BIOS ROM again even when KVM is disabled,
just like for machines predating the introduction of flash.
To get flash instead, use "--global pc-sysfw.rom_only=0".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1365780303-26398-4-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Just to make the next commit easier to review.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1365780303-26398-3-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Just to make the commit after next easier to review.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1365780303-26398-2-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Functions defined in acpi/ should be declared in
acpi.h
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move it to qom/cpu.h to avoid issues with include order.
Change pc_acpi_smi_interrupt() opaque to X86CPU.
Signed-off-by: Andreas Färber <afaerber@suse.de>
* bonzini/hw-dirs:
sh: move files referencing CPU to hw/sh4/
ppc: move more files to hw/ppc
ppc: move files referencing CPU to hw/ppc/
m68k: move files referencing CPU to hw/m68k/
i386: move files referencing CPU to hw/i386/
arm: move files referencing CPU to hw/arm/
hw: move boards and other isolated files to hw/ARCH
ppc: express FDT dependency of pSeries and e500 boards via default-configs/
build: always link device_tree.o into emulators if libfdt available
hw: include hw header files with full paths
ppc: do not use ../ in include files
vt82c686: vt82c686 is not a PCI host bridge
virtio-9p: remove PCI dependencies from hw/9pfs/
virtio-9p: use CONFIG_VIRTFS, not CONFIG_LINUX
hw: move device-hotplug.o to toplevel, compile it once
hw: move qdev-monitor.o to toplevel directory
hw: move fifo.[ch] to libqemuutil
hw: move char backends to backends/
Conflicts:
backends/baum.c
backends/msmouse.c
hw/a15mpcore.c
hw/arm/Makefile.objs
hw/arm/pic_cpu.c
hw/dataplane/event-poll.c
hw/dataplane/virtio-blk.c
include/char/baum.h
include/char/msmouse.h
qemu-char.c
vl.c
Resolve conflicts caused by header movements.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
