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2011-06-26TCG/Sparc64: use stack for TCG tempsBlue Swirl
Use stack instead of temp_buf array in CPUState for TCG temps. On Sparc64, stack pointer is not aligned but there is a fixed bias of 2047, so don't try to enforce alignment. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26TCG/x86: use stack for TCG tempsBlue Swirl
Use stack instead of temp_buf array in CPUState for TCG temps. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26TCG/x86: use TCG_REG_CALL_STACK instead of TCG_REG_ESPBlue Swirl
Except for specific cases where the use of %esp changes the encoding of the instruction, it's cleaner to use TCG_REG_CALL_STACK instead of TCG_REG_ESP. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26TCG: remove broken stack allocation for call argumentsBlue Swirl
The code for stack allocation for call arguments is way too simplistic to actually work on targets with non-trivial stack allocation policies, e.g. ppc64. We've also already allocated TCG_STATIC_CALL_ARGS_SIZE worth of stack for calls which should be well more than any helper needs. Remove broken dynamic stack allocation code and replace it with an assert. Should dynamic stack allocation ever be needed again, target specific functions should be added. Thanks to Richard Henderson for the analysis. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26TCG: fix negative frame offset calculationsBlue Swirl
size_t is unsigned, so the frame offset calculations can be incorrect for negative offsets. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Delegate setup of TCG temporaries to targetsBlue Swirl
Delegate TCG temp_buf setup to targets, so that they can use a stack frame later instead. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26cpu-exec.c: avoid AREG0 useBlue Swirl
Make functions take a parameter for CPUState instead of relying on global env. Pass CPUState pointer to TCG prologue, which moves it to AREG0. Thanks to Peter Maydell and Laurent Desnogues for the ARM prologue change. Revert the hacks to avoid AREG0 use on Sparc hosts. Move cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h. Compile the file without HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Remove exec-all.h include directivesBlue Swirl
Most exec-all.h include directives are now useless, remove them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Move cpu_has_work and cpu_pc_from_tb to cpu.hBlue Swirl
Move functions cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h. This is needed by later patches. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26exec.h: fix coding style and change cpu_has_work to return boolBlue Swirl
Before the next patch, fix coding style of the areas affected. Change the type of the return value from cpu_has_work() and qemu_cpu_has_work() to bool. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26cpu-exec: unify do_interrupt callBlue Swirl
Now that all targets use common function signature for do_interrupt(), there is no need for the #ifdeffery anymore. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26m68k: use caller supplied CPUState for interrupt related stuffBlue Swirl
Pass CPUState to do_interrupt(). This is needed by later patches. It would be cleaner to move the function to helper.c, but there are a few dependencies between do_interrupt() and other functions. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26x86: use caller supplied CPUState for interrupt related stuffBlue Swirl
Several x86 specific functions are called from cpu-exec.c with the assumption that global env register is valid. This will be changed later, so make the functions use caller supplied CPUState parameter. It would be cleaner to move the functions to helper.c, but there are quite a lot of dependencies between do_interrupt() and other functions. Add helpers for svm_check_intercept() and cpu_cc_compute_all() instead of calling the helper (which uses global env, AREG0) directly. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26sparc: move do_interrupt to helper.cBlue Swirl
do_interrupt() was mixing CPUState pointer passed from caller and global env (AREG0). Fix by moving the function to helper.c. Introduce a helper for calling change_pstate() safely from outside of execution context. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26sparc: fix coding style of the area to be movedBlue Swirl
Before the next patch, fix coding style of the areas affected. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26cpu_loop_exit: avoid using AREG0Blue Swirl
Make cpu_loop_exit() take a parameter for CPUState instead of relying on global env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Sparc32: dummy implementation of MXCC MMU breakpoint registersBlue Swirl
Add dummy registers for SuperSPARC MXCC MMU counter breakpoints, save and load all MXCC registers. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Fix fallouts from Linux header inclusionJan Kiszka
This is an all-in-one fix for the smaller and bigger mistakes of the build system changes for accompanied Linux headers: - only enable KVM and vhost on Linux hosts - fix powerpc asm header symlink - do not use Linux headers on non-Linux hosts - fix kvmclock for !CONFIG_KVM - fix s390 build on non-Linux hosts Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Tested-by: Andreas Färber <andreas.faerber@web.de> Tested-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-23coreaudio: Fix OSStatus format specifierAndreas Färber
OSStatus type is defined as SInt32. That's signed int on __LP64__ and signed long otherwise. Since it is an explicit 32-bit-width type, cast to corresponsing POSIX type and use PRId32 format specifier. This avoids a warning on ppc64. Cc: malc <av1474@comtv.ru> Signed-off-by: Andreas Faerber <andreas.faerber@web.de> Signed-off-by: malc <av1474@comtv.ru>
2011-06-23coreaudio: Avoid formatting UInt32 typeAndreas Färber
coreaudioVoiceOut's audioDevicePropertyBufferFrameSize is defined as UInt32 and is being used by reference for AudioDevice{Get,Set}Property(). UInt32 is unsigned int on __LP64__ but unsigned long otherwise. Cast to POSIX type and use PRIu32 format specifier to hide the details. This avoids a warning on ppc64. Cc: malc <av1474@comtv.ru> Signed-off-by: Andreas Faerber <andreas.faerber@web.de> Signed-off-by: malc <av1474@comtv.ru>
2011-06-22net: Warn about "-net nic" options which were ignoredPeter Maydell
Diagnose the case where the user asked for a NIC via "-net nic" but the board didn't instantiate that NIC (for example where the user asked for two NICs but the board only supports one). Note that this diagnostic doesn't apply to NICs created through -device, because those are always instantiated. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-22net: Don't warn about the default network setupPeter Maydell
Don't warn about the default network setup that you get if no command line -net options are specified. There are two cases that we would otherwise complain about: (1) board doesn't support a NIC but the implicit "-net nic" requested one (2) CONFIG_SLIRP not set, so the implicit "-net nic" sets up a nic that isn't connected to anything Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-22Revert "net: Improve the warnings for dubious command line option combinations"Peter Maydell
This reverts commit f68b9d672b90dedc79aeb9b44607f484dbe46a6b. That attempt at diagnosing unused -net nic options failed to account for NICs created via -device; back it out cleanly in preparation for implementing in a different manner. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-22Optimize screendumpAvi Kivity
When running kvm-autotest, fputc() is often the second highest (sometimes #1) function showing up in a profile. This is due to fputc() locking the file for every byte written. Optimize by buffering a line's worth of pixels and writing that out in a single call. Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-22Merge remote-tracking branch 'qmp/for-anthony' into stagingAnthony Liguori
2011-06-22Merge remote-tracking branch 'qemu-kvm/uq/master' into stagingAnthony Liguori
2011-06-22Merge remote-tracking branch 'mst/for_anthony' into stagingAnthony Liguori
Conflicts: hw/usb-uhci.c
2011-06-22Merge remote-tracking branch 'agraf/xen-next' into stagingAnthony Liguori
2011-06-21kvm: fix FPU state subsectionMarcelo Tosatti
There is no need to specify version on the subsection fields. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20KVM: Fix XSAVE feature bit enumerationAndre Przywara
When iterating through the XSAVE feature enumeration CPUID leaf (0xD) we should not stop at the first zero EAX, but instead keep scanning since there are gaps in the enumeration (ECX=1 for instance). This fixes the proper usage of AVX in KVM guests. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20Remove unneeded kvm.h from cpu-exec.cJan Kiszka
This was obsoleted by 6792a57bf1. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: x86: Pass KVMState to kvm_arch_get_supported_cpuidJan Kiszka
kvm_arch_get_supported_cpuid checks for global cpuid restrictions, it does not require any CPUState reference. Changing its interface allows to call it before any VCPU is initialized. CC: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: Clean up stubsJan Kiszka
No one references kvm_check_extension, kvm_has_vcpu_events, and kvm_has_robust_singlestep outside KVM code. kvm_update_guest_debug is never called, thus has no job besides returning an error. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: ppc: Drop KVM_CAP build dependenciesJan Kiszka
No longer needed with accompanied kernel headers. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: x86: Drop KVM_CAP build dependenciesJan Kiszka
No longer needed with accompanied kernel headers. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: Drop KVM_CAP build dependenciesJan Kiszka
No longer needed with accompanied kernel headers. We are only left with build dependencies that are controlled by kvm arch headers. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: Drop useless zero-initializationsJan Kiszka
Backing KVMState is alreay zero-initialized. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: ppc: Drop CONFIG_KVM_PPC_PVRJan Kiszka
Required header support is now unconditionally available. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20kvm: Drop CONFIG_KVM_PARAJan Kiszka
The kvm_para.h header is now always available. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20Switch build system to accompanied kernel headersJan Kiszka
This helps reducing our build-time checks for feature support in the available Linux kernel headers. And it helps users that do not have sufficiently recent headers installed on their build machine. Consequently, the patch removes and build-time checks for kvm and vhost in configure, the --kerneldir switch, and KVM_CFLAGS. Kernel headers are supposed to be provided by QEMU only. s390 needs some extra love as it carries redefinitions from kernel headers. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20Import kernel headersJan Kiszka
These kernel headers and the COPYING file were automatically imported from current Linux git, cb0a02ecf9 (post 3.0-rc2). Licensing: asm-powerpc GPLv2 asm-s390 GPLv2 asm-x86 Linux top-level license (GPLv2 with exception) linux/kvm*: Linux top-level license (GPLv2 with exception) linux/vhost: Linux top-level license (GPLv2 with exception) linux/virtio*: 3-clause BSB CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20Add kernel header update scriptJan Kiszka
This helper pulls the required kernel headers for KVM and vhost into a specified directory. The update is triggered via scripts/update-linux-headers.sh LINUX_PATH and will place the output under linux-headers/linux and linux-headers/asm-*. It also imports the COPYING to care for headers without an explicit license. CC: Alexander Graf <agraf@suse.de> CC: Christoph Hellwig <hch@lst.de> CC: Peter Maydell <peter.maydell@linaro.org> CC: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-20cmd: fix operator precedenceFrediano Ziglio
Signed-off-by: Frediano Ziglio <freddy77@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-06-20Fix typo in cpus.cAlexandre Raymond
filed -> failed Signed-off-by: Alexandre Raymond <cerbere@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-06-20lsi: Fix unused-but-set-variable warningChristophe Fergeau
This warning is new in gcc 4.6. Signed-off-by: Christophe Fergeau <cfergeau@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-06-19kvm: x86: Save/restore FPU OP, IP and DPJan Kiszka
These FPU states are properly maintained by KVM but not yet by TCG. So far we unconditionally set them to 0 in the guest which may cause state corruptions, though not with modern guests. To avoid breaking backward migration, use a conditional subsection that is only written if any of the three fields is non-zero. The guest's FNINIT clears them frequently, and cleared IA32_MISC_ENABLE MSR[2] reduces the probability of non-zero values further so that this subsection is not expected to restrict migration in any common scenario. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-06-19xen: Add the Xen platform pci deviceSteven Smith
Introduce a new emulated PCI device, specific to fully virtualized Xen guests. The device is necessary for PV on HVM drivers to work. Signed-off-by: Steven Smith <ssmith@xensource.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-19xen: fix interrupt routingStefano Stabellini
Compared to the last version I only added a comment to the code. - remove i440FX-xen and i440fx_write_config_xen we don't need to intercept pci config writes to i440FX anymore; - introduce PIIX3-xen and piix3_write_config_xen we do need to intercept pci config write to the PCI-ISA bridge to update the PCI link routing; - set the number of PIIX3-xen interrupts line to 128; Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-19xen: only track the linear framebufferStefano Stabellini
Xen can only do dirty bit tracking for one memory region, so we should explicitly avoid trying to track anything but the vga vram region. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-19cirrus_vga: reset lfb_addr after a pci config write if the BAR is unmappedStefano Stabellini
If the cirrus_vga PCI BAR is unmapped than we should not only reset map_addr but also lfb_addr, otherwise we'll keep trying to map the old lfb_addr in map_linear_vram. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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