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2013-07-04memory: add ref/unref callsPaolo Bonzini
Add ref/unref calls at the following places: - places where memory regions are stashed by a listener and used outside the BQL (including in Xen or KVM). - memory_region_find callsites - creation of aliases and containers (only the aliased/contained region gets a reference to avoid loops) - around calls to del_subregion/add_subregion, where the region could disappear after the first call Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-01KVM: PIC: Only commit irq routing when necessaryAlexander Graf
The current logic updates KVM's view of our interrupt map every time we change it. While this is nice and bullet proof, it slows things down badly for me. QEMU spends about 3 seconds on every start telling KVM what news it has on its routing maps. Instead, let's just synchronize the whole irq routing map as a whole when we're done constructing it. For things that change during runtime, we can still update the routing table on demand. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01KVM: MSI: Swap payload to native endiannessAlexander Graf
The usual MSI injection mechanism writes msi.data into memory using an le32 wrapper. So on big endian guests, this swaps msg.data into the expected byte order. For irqfd however, we don't swap the payload right now, rendering in-kernel MPIC emulation broken on PowerPC. Swap msg.data to the correct endianness whenever we touch it. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01KVM: Export kvm_init_irq_routingAlexander Graf
On PPC, we can have different types of interrupt controllers, so we really only know that we are going to use one when we created it. Export kvm_init_irq_routing() to common code, so that we don't have to call kvm_irqchip_create(). Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01KVM: Don't assume that mpstate exists with in-kernel PIC alwaysAlexander Graf
On PPC, we don't support MP state. So far it's not necessary and I'm not convinced yet that we really need to support it ever. However, the current idle logic in QEMU assumes that an in-kernel PIC also means we support MP state. This assumption is not true anymore. Let's split up the two cases into two different variables. That way PPC can expose an in-kernel PIC, while not implementing MP state. Signed-off-by: Alexander Graf <agraf@suse.de> CC: Jan Kiszka <jan.kiszka@siemens.com>
2013-06-28kvm: Change kvm_cpu_exec() argument to CPUStateAndreas Färber
It no longer uses CPUArchState. Prepares for changing qemu_kvm_cpu_thread_fn() opaque to CPUState. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28kvm: Change kvm_handle_internal_error() argument to CPUStateAndreas Färber
It no longer uses CPUArchState. Prepares for changing kvm_cpu_exec() argument to CPUState. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Turn cpu_dump_{state,statistics}() into CPUState hooksAndreas Färber
Make cpustats monitor command available unconditionally. Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec() arguments to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28kvm: Change kvm_set_signal_mask() argument to CPUStateAndreas Färber
CPUArchState is no longer needed. Prepares for changing qemu_kvm_init_cpu_signals() argument to CPUState. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28kvm: Change kvm_cpu_synchronize_state() argument to CPUStateAndreas Färber
It no longer relies on CPUArchState since 20d695a. Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-20memory: make section size a 128-bit integerPaolo Bonzini
So far, the size of all regions passed to listeners could fit in 64 bits, because artificial regions (containers and aliases) are eliminated by the memory core, leaving only device regions which have reasonable sizes An IOMMU however cannot be eliminated by the memory core, and may have an artificial size, hence we may need 65 bits to represent its size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03fix double free the memslot in kvm_set_phys_memXiao Guangrong
Luiz Capitulino reported that guest refused to boot and qemu complained with: kvm_set_phys_mem: error unregistering overlapping slot: Invalid argument It is caused by commit 235e8982ad that did double free for the memslot so that the second one raises the -EINVAL error Fix it by reset memory size only if it is needed Reported-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29kvm: support using KVM_MEM_READONLY flag for regionsJordan Justen
For readonly memory regions and rom devices in romd_mode, we make use of the KVM_MEM_READONLY. A slot that uses KVM_MEM_READONLY can be read from and code can execute from the region, but writes will exit to qemu. For rom devices with !romd_mode, we force the slot to be removed so reads or writes to the region will exit to qemu. (Note that a memory region in this state is not executable within kvm.) v7: * Update for readable => romd_mode rename (5f9a5ea1) Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> (v4) Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> (v5) Message-id: 1369816047-16384-4-git-send-email-jordan.l.justen@intel.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29kvm: add kvm_readonly_mem_enabledJordan Justen
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1369816047-16384-3-git-send-email-jordan.l.justen@intel.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-14osdep, kvm: rename low-level RAM allocation functionsPaolo Bonzini
This is preparatory to the introduction of a separate freeing API. Reported-by: Amos Kong <akong@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Amos Kong <akong@redhat.com> Message-id: 1368454796-14989-2-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03kvm-all: add kvm_run_exit tracepointKazuya Saito
This patch enable us to know exit reason of KVM_RUN. It will help us know where the trouble is caused. Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03kvm-all: add kvm_ioctl, kvm_vm_ioctl, kvm_vcpu_ioctl tracepointsKazuya Saito
This patch adds tracepoints at ioctl to kvm. Tracing these ioctl is useful for clarification whether the cause of troubles is qemu or kvm. Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-01cpu: Call cpu_synchronize_post_init() from DeviceClass::realize()Igor Mammedov
If hotplugged, synchronize CPU state to KVM. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-04-19Merge remote-tracking branch 'mst/tags/for_anthony' into stagingAnthony Liguori
pci: add pci test device This adds a new device that we can use for testing PCI PIO and MMIO, with and without ioeventfd in different configurations. FAST_MMIO will be added if/when kvm supports it. Also included are minor cleanups in kvm APIs that it needs. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon 15 Apr 2013 05:42:24 PM CDT using RSA key ID D28D5469 # gpg: Can't check signature: public key not found # By Michael S. Tsirkin # Via Michael S. Tsirkin * mst/tags/for_anthony: pci: add pci test device kvm: support non datamatch ioeventfd kvm: support any size for pio eventfd kvm: remove unused APIs Message-id: cover.1366272004.git.mst@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-16cpu: Pass CPUState to *cpu_synchronize_post*()Igor Mammedov
... so it could be called without requiring CPUArchState. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-04-14kvm: support non datamatch ioeventfdMichael S. Tsirkin
Adding restrictions just adds code. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-04-14kvm: support any size for pio eventfdMichael S. Tsirkin
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-04-14kvm: remove unused APIsMichael S. Tsirkin
There are only used internally now, move them out of header and out of stub. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-03-12cpu: Pass CPUState to cpu_interrupt()Andreas Färber
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>
2013-03-12cpu: Move halted and interrupt_request fields to CPUStateAndreas Färber
Both fields are used in VMState, thus need to be moved together. Explicitly zero them on reset since they were located before breakpoints. Pass PowerPCCPU to kvmppc_handle_halt(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16cpu: Move exit_request field to CPUStateAndreas Färber
Since it was located before breakpoints field, it needs to be reset. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-28kvm: Pass CPUState to kvm_on_sigbus_vcpu()Andreas Färber
Since commit 20d695a9254c1b086a456d3b79a3c311236643ba (kvm: Pass CPUState to kvm_arch_*) CPUArchState is no longer needed. Allows to change qemu_kvm_eat_signals() argument as well. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Gleb Natapov <gleb@redhat.com>
2013-01-27kvm: Create kvm_arch_vcpu_id() functionEduardo Habkost
This will allow each architecture to define how the VCPU ID is set on the KVM_CREATE_VCPU ioctl call. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15kvm: add stub for kvm_irqchip_update_msi_routeMichael S. Tsirkin
ppc64 build needs this stub to build with virtio enabled. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15kvm: Pass CPUState to kvm_init_vcpu()Andreas Färber
CPUArchState is no longer needed, and it thereby no longer depends on NEED_CPU_H. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15cpu: Move cpu_index field to CPUStateAndreas Färber
Note that target-alpha accesses this field from TCG, now using a negative offset. Therefore the field is placed last in CPUState. Pass PowerPCCPU to [kvm]ppc_fixup_cpu() to facilitate this change. Move common parts of mips cpu_state_reset() to mips_cpu_reset(). Acked-by: Richard Henderson <rth@twiddle.net> (for alpha) [AF: Rebased onto ppc CPU subclasses and openpic changes] Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-23Merge branch 'master' of git://git.qemu.org/qemu into qom-cpuAndreas Färber
Adapt header include paths. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19cpu: Move kvm_run into CPUStateAndreas Färber
Pass CPUState / {X86,S390}CPU to helper functions. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19cpu: Move kvm_state field into CPUStateAndreas Färber
Adapt some functions to take CPUState / {PowerPC,S390}CPU argument. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19kvm: Pass CPUState to kvm_vcpu_ioctl()Andreas Färber
Adapt helper functions to pass X86CPU / PowerPCCPU / S390CPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19kvm: Pass CPUState to kvm_arch_*Andreas Färber
Move kvm_vcpu_dirty field into CPUState to simplify things and change its type to bool while at it. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19cpu: Move kvm_fd into CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19softmmu: move include files to include/sysemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19exec: move include files to include/exec/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-17kvm: do not flush after deleting gsiMichael S. Tsirkin
Deleting a GSI isn't necessary: it is enough to stop using it. Delay flush until an entry is used. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-17pci: update all users to look in pci/Michael S. Tsirkin
update all users so we can remove the makefile hack. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-11-26kvm: fix incorrect length in a loop over kvm dirty pages mapAlexey Kardashevskiy
QEMU allocates a map enough for 4k pages. However the system page size can be 64K (for example on POWER) and the host kernel uses only a small part of it as one big stores a dirty flag for 16 pages 4K each, the hpratio variable stores this ratio and the kvm_get_dirty_pages_log_range function handles it correctly. However kvm_get_dirty_pages_log_range still goes beyond the data provided by the host kernel which is not correct. It does not cause errors at the moment as the whole bitmap is zeroed before doing KVM ioctl. The patch reduces number of iterations over the map. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-11-14kvm: Actually remove software breakpoints from list on cleanupJan Kiszka
So far we only removed them from the guest, leaving its states in the list. This made it impossible for gdb to re-enable breakpoints on the same address after re-attaching. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-10-31cpus: Pass CPUState to run_on_cpu()Andreas Färber
CPUArchState is no longer needed. Move the declaration to include/qemu/cpu.h and add documentation. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-31cpus: Pass CPUState to qemu_cpu_kick()Andreas Färber
CPUArchState is no longer needed there. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-31cpus: Pass CPUState to qemu_cpu_is_self()Andreas Färber
Change return type to bool, move to include/qemu/cpu.h and add documentation. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Igor Mammedov <imammedo@redhat.com> [AF: Updated new caller qemu_in_vcpu_thread()]
2012-10-23Rename target_phys_addr_t to hwaddrAvi Kivity
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are reserved) and its purpose doesn't match the name (most target_phys_addr_t addresses are not target specific). Replace it with a finger-friendly, standards conformant hwaddr. Outstanding patchsets can be fixed up with the command git rebase -i --exec 'find -name "*.[ch]" | xargs s/target_phys_addr_t/hwaddr/g' origin Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-22memory: use AddressSpace for MemoryListener filteringAvi Kivity
Using the AddressSpace type reduces confusion, as you can't accidentally supply the MemoryRegion you're interested in. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-10-22memory: manage coalesced mmio via a MemoryListenerAvi Kivity
Instead of calling a global function on coalesced mmio changes, which routes the call to kvm if enabled, add coalesced mmio hooks to MemoryListener and make kvm use that instead. The motivation is support for multiple address spaces (which means we we need to filter the call on the right address space) but the result is cleaner as well. Signed-off-by: Avi Kivity <avi@redhat.com>
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