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* target-s390x: detect tininess before rounding for FP operationsAurelien Jarno2015-06-051-0/+8
| | | | | | | | The s390x floating point unit detects tininess before rounding, so set the softfloat fp_status up appropriately. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: silence NaNs for LOAD LENGTHENED and LOAD ROUNDEDAurelien Jarno2015-06-051-6/+6
| | | | | | | | LOAD LENGTHENED and LOAD ROUNDED are considered as FP operations and thus need to convert input sNaN into corresponding qNaN. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: fix MMU index computationAurelien Jarno2015-06-051-4/+11
| | | | | | | | | | | | | | | | | | | | | The cpu_mmu_index function wrongly looks at PSW P bit to determine the MMU index, while this bit actually only control the use of priviledge instructions. The addressing mode is detected by looking at the PSW ASC bits instead. This used to work more or less correctly up to kernel 3.6 as the kernel was running in primary space and userland in secondary space. Since kernel 3.7 the default is to run the kernel in home space and userland in primary space. While the current QEMU code seems to work it open some security issues, like accessing the lowcore memory in R/W mode from a userspace process once it has been accessed by the kernel (it is then cached by the QEMU TLB). At the same time change the MMU_USER_IDX value so that it matches the value used in recent kernels. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: fix PSW value on dynamical exception from helpersAurelien Jarno2015-06-051-1/+1
| | | | | | | | | | | runtime_exception computes the psw.addr value using the actual exception address and the instruction length computed by calling the get_ilen function. However as explained above the get_ilen code, it returns the actual instruction length, and not the ILC. Therefore there is no need to multiply the value by 2. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: fix LOAD MULTIPLE instruction on page boundaryAurelien Jarno2015-06-051-29/+99
| | | | | | | | | | | | | | | | | | | | When consecutive memory locations are on page boundary a page fault might occur when using the LOAD MULTIPLE instruction. In that case real hardware doesn't load any register. This is an important detail in case the base register is in the list of registers to be loaded. If a page fault occurs this register might be overwritten and when the instruction is later restarted the wrong base register value is useD. Fix this by first loading the first and last value from memory, hence triggering all possible page faults, and then the remaining registers. This fixes random segmentation faults seen in the guest. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: implement STPT helperAurelien Jarno2015-06-051-3/+4
| | | | | | | | | | Save the timer target value in the SPT helper, so that the STPT helper can compute the remaining time. This allow the Linux kernel to correctly do time accounting. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: implement STCKC helperAurelien Jarno2015-06-051-2/+3
| | | | | | | | The STCKC instruction just returns the last written clock comparator value and KVM already provides the corresponding variable. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: streamline STCK helperAurelien Jarno2015-06-051-7/+2
| | | | | | | | Now that clock_value is only used in one place, we can inline it in the STCK helper. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: simplify SCKC helperAurelien Jarno2015-06-051-3/+4
| | | | | | | | | | | The clock comparator and the QEMU timer work the same way, triggering at a given time, they just differ by the origin and the scale. It is therefore possible to go from one to another without using the current clock value. This spares two calls to qemu_clock_get_ns, which probably return slightly different values, possibly reducing the accuracy. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: add a tod2time functionAurelien Jarno2015-06-052-2/+7
| | | | | | | | Add a tod2time function similar to the time2tod one, instead of open coding the conversion. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: remove unused helpersAurelien Jarno2015-06-052-22/+0
| | | | | | Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: optimize (negative-) abs computationAurelien Jarno2015-06-053-26/+14
| | | | | | | | | Now that movcond exists, it's easy to write (negative-) absolute value using TCG code instead of an helper. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: fix CC computation for LOAD POSITIVE instructionsAurelien Jarno2015-06-051-2/+2
| | | | | | | | | | | | | | | | | LOAD POSITIVE instructions (LPR, LPGR and LPGFR) set the following condition code: 0: Result zero; no overflow 1: -- 2: Result greater than zero; no overflow 3: Overflow The current code wrongly returns 1 instead of 2 in case of a result greater than 0. This patches fixes that. This fixes the marshalling of the value '0L' in Python. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: fix CC computation for EX instructionAurelien Jarno2015-06-051-2/+1
| | | | | | | | | | | | | | | Commit 7a6c7067f optimized CC computation by only saving cc_op before calling helpers as they either don't touch the CC or generate a new static value. This however doesn't work for the EX instruction as the helper changes or not the CC value depending on the actual executed instruction (e.g. MVC vs CLC). This patches force a CC computation before calling the helper. This fixes random memory corruption occuring in guests. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> [agraf: remove set_cc_static in op_ex as suggested by rth] Signed-off-by: Alexander Graf <agraf@suse.de>
* kvm: introduce kvm_arch_msi_data_to_gsiEric Auger2015-06-021-0/+5
| | | | | | | | | | | On ARM the MSI data corresponds to the shared peripheral interrupt (SPI) ID. This latter equals to the SPI index + 32. to retrieve the SPI index, matching the gsi, an architecture specific function is introduced. Signed-off-by: Eric Auger <eric.auger@linaro.org> Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* s390x: Enable vector processing capabilityEric Farman2015-05-271-0/+1
| | | | | | | | | Everything is finally in place, inform the kernel that user space supports vector registers. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Migrate vector registersEric Farman2015-05-272-0/+75
| | | | | | | | | | | | | | When migrating a guest, be sure to include the vector registers. The vector registers are defined in a subsection, similar to the existing subsection for floating point registers. Since the floating point registers are always present (and thus migrated), we can skip them when performing the migration of the vector registers which may or may not be present. Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Add vector registers to ELF dumpEric Farman2015-05-271-0/+39
| | | | | | | | | Create ELF notes for the vector registers where applicable, so that their contents can be examined by utilities such as crash or readelf. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Add vector registers to HMP outputEric Farman2015-05-271-0/+6
| | | | | | | | | | | There are mechanisms to dump registers via the qemu HMP interface, such as the "info registers" command. Expand this output to dump the new vector registers. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: gdb updates for vector registersEric Farman2015-05-271-0/+46
| | | | | | | | | | | gdb allows registers to be displayed/modified, and is being updated to account for the new vector registers. Mirror these changes in the gdb stub in qemu so that this can be performed when gdb is attached to the qemu gdbserver. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Store Additional Status SIGP orderEric Farman2015-05-272-0/+56
| | | | | | | | | Add handling for the Store Additional Status at Address order that exists for the Signal Processor (SIGP) instruction. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Vector Register IOCTLsEric Farman2015-05-274-35/+56
| | | | | | | | | | | | | | | | Handle the actual syncing of the vector registers with kernel space, via the get/put register IOCTLs. The vector registers that were introduced with the z13 overlay the existing floating point registers. FP registers 0-15 are the high-halves of vector registers 0-15. Thus, remove the freg fields and replace them with the equivalent vector field to avoid errors in duplication. Moreover, synchronize either the vector registers via kvm_sync_regs, or floating point registers via the GET/SET FPU IOCTLs. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Common access to floating point registersEric Farman2015-05-276-8/+17
| | | | | | | | | | Provide a routine to access the correct floating point register, to simplify future expansion. Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x: Add interlocked access facility 1 instructionsAlexander Graf2015-05-132-0/+51
| | | | | | | | | We're currently missing all instructions defined by the "interlocked-access facility 1" which is part of zEC12. This patch implements all of them except for LPD and LPDG. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Richard Henderson <rth@twiddle.net>
* s390x: Add some documentation in opcode listAlexander Graf2015-05-131-0/+21
| | | | | | | | | | I find it really hard to grasp what each field in the opcode list means. Slowly walking through its semantics myself, I figured I'd write a small summary at the top of the file to make life easier for me and whoever looks at the file next. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Richard Henderson <rth@twiddle.net>
* s390x: Fix stoc directionAlexander Graf2015-05-131-0/+4
| | | | | | | | | | | The store conditional instruction wants to store when the condition is fulfilled, so we should branch out when it's not true. The code today branches out when the condition is true, clearly reversing the logic. Fix it up by negating the condition. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Richard Henderson <rth@twiddle.net>
* Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell2015-05-111-1/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - build bugfix from Fam and new configure check from Emilio - two improvements to "info mtere" from Gerd - KVM support for memory transaction attributes - one more small step towards unlocked MMIO dispatch - one piece of the qemu-nbd errno fixes - trivial-ish patches from Denis and Thomas # gpg: Signature made Fri May 8 13:47:29 2015 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: qemu-nbd: only send a limited number of errno codes on the wire rules.mak: Force CFLAGS for all objects in DSO configure: require __thread support exec: move rcu_read_lock/unlock to address_space_translate callers kvm: add support for memory transaction attributes mtree: also print disabled regions mtree: tag & indent a bit better apic_common: improve readability of apic_reset_common kvm: Silence warning from valgrind Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * kvm: add support for memory transaction attributesPaolo Bonzini2015-04-301-1/+3
| | | | | | | | | | | | | | Let kvm_arch_post_run convert fields in the kvm_run struct to MemTxAttrs. These are then passed to address_space_rw. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | s390x/kvm: migrate vcpu interrupt stateJens Freimann2015-05-085-1/+82
| | | | | | | | | | | | | | | | | | | | This patch adds support to migrate vcpu interrupts. We use ioctl KVM_S390_GET_IRQ_STATE and _SET_IRQ_STATE to get/set the complete interrupt state for a vcpu. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | s390x: move fpu regs into a subsection of the vmstateDavid Hildenbrand2015-05-081-7/+29
| | | | | | | | | | | | | | | | | | | | | | | | Let's move the floating point registers into a seperate subsection and bump up the version id. This cleans up the current vmstate and will allow for a future extension with vector registers in a compatible way. This patch is based on a patch from Eric Farman. Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | s390x/kvm: use ioctl KVM_S390_IRQ for vcpu interruptsJens Freimann2015-05-081-2/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KVM_S390_INT uses only two parameter fields. This is not enough to pass all required information for certain interrupts. A new ioctl KVM_S390_IRQ is available which allows us to inject all local interrupts as defined in the Principles of Operation. It takes a struct kvm_s390_irq as a parameter which can store interrupt payload data for all interrupts. Let's use the new ioctl for injecting vcpu interrupts. Tested-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | Merge remote-tracking branch ↵Peter Maydell2015-04-302-5/+5
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/mjt/tags/pull-trivial-patches-2015-04-30' into staging trivial patches for 2015-04-30 # gpg: Signature made Thu Apr 30 14:07:50 2015 BST using RSA key ID A4C3D7DB # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" * remotes/mjt/tags/pull-trivial-patches-2015-04-30: (42 commits) openrisc: cpu: Remove unused cpu_get_pc microblaze: fix memory leak tcg: Delete unused cpu_pc_from_tb() kvm: Silence warning from valgrind vhost-user: remove superfluous '\n' around error_report() target-mips: fix memory leak qmp-commands: Fix typo linux-user/elfload: use QTAILQ_FOREACH instead of open-coding it coroutine: remove unnecessary parentheses in qemu_co_queue_empty qemu-char: remove unused list node from FDCharDriver input: remove unused mouse_handlers list cpus: use first_cpu macro instead of QTAILQ_FIRST(&cpus) microblaze: cpu: delete unused cpu_interrupts_enabled microblaze: cpu: Renumber EXCP_* constants to close gap microblaze: cpu: Delete EXCP_NMI microblaze: cpu: Remove unused CC_OP enum microblaze: cpu: Remote unused cpu_get_pc microblaze: mmu: Delete flip_um fn prototype defconfigs: Piggyback microblazeel on microblaze libcacard: do not use full paths for include files in the same dir ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * misc: Fix new collection of typosStefan Weil2015-04-302-5/+5
| | | | | | | | | | | | | | | | | | | | All of them were reported by codespell. Most typos are in comments, one is in an error message. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* | s390x/kvm: Support access register mode for KVM_S390_MEM_OP ioctlAlexander Yarygin2015-04-304-48/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Access register mode is one of the modes that control dynamic address translation. In this mode the address space is specified by values of the access registers. The effective address-space-control element is obtained from the result of the access register translation. See the "Access-Register Introduction" section of the chapter 5 "Program Execution" in "Principles of Operations" for more details. When the CPU is in AR mode, the s390_cpu_virt_mem_rw() function must know which access register number to use for address translation. This patch does several things: - add new parameter 'uint8_t ar' to that function - decode ar number from intercepted instructions - pass the ar number to s390_cpu_virt_mem_rw(), which in turn passes it to the KVM_S390_MEM_OP ioctl. Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | s390x/mmu: Use ioctl for reading and writing from/to guest memoryThomas Huth2015-04-303-0/+54
| | | | | | | | | | | | | | | | | | | | | | Add code to make use of the new ioctl for reading from / writing to virtual guest memory. By using the ioctl, the memory accesses are now protected with the so-called ipte-lock in the kernel. [CH: moved error message into kvm_s390_mem_op()] Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | s390x/kvm: Put vm name, extended name and UUID into STSI322 SYSIBEkaterina Tumanova2015-04-302-2/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KVM prefills the SYSIB, returned by STSI 3.2.2. This patch allows userspace to intercept execution, and fill in the values, that are known to qemu: machine name (8 chars), extended machine name (256 chars), extended machine name encoding (equals 2 for UTF-8) and UUID. STSI322 qemu handler also finds a highest virtualization level in level-3 virtualization stack that doesn't support Extended Names (Ext Name delimiter) and propagates zero Ext Name to all levels below, because this level is not capable of managing Extended Names of lower levels. Signed-off-by: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | s390x/mmu: Use access type definitions instead of magic valuesThomas Huth2015-04-302-6/+6
|/ | | | | | | | | | | Since there are now proper definitions for the MMU access type, let's use them in the s390x MMU code, too, instead of the hard-to-understand magic values. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20150316' into stagingPeter Maydell2015-03-162-35/+131
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Final batch of s390x enhancements/fixes for 2.3: - handle TOD clock during migration - CPACF key wrap options - limit amount of pci device code we build - ensure big endian accesses for ccws - various fixes and cleanups # gpg: Signature made Mon Mar 16 10:01:44 2015 GMT using RSA key ID C6F02FAF # gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" * remotes/cohuck/tags/s390x-20150316: s390x/config: Do not include full pci.mak s390x/pci: fix length in sei_nt2 event s390x/ipl: remove dead code s390x/virtio-bus: Remove unused function s390_virtio_bus_console() s390x: CPACF: Handle key wrap machine options s390x/kvm: make use of generic vm attribute check kvm: encapsulate HAS_DEVICE for vm attrs virtio-ccw: assure BE accesses s390x/kvm: Guest Migration TOD clock synchronization s390x: Replace unchecked qdev_init() by qdev_init_nofail() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * s390x: CPACF: Handle key wrap machine optionsTony Krowiak2015-03-161-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check for the aes_key_wrap and dea_key_wrap machine options and set the appropriate KVM device attribute(s) to tell the kernel to enable or disable the AES/DEA protected key functions for the guest domain. This patch introduces two new machine options for indicating the state of AES/DEA key wrapping functions. This controls whether the guest will have access to the AES/DEA crypto functions. aes_key_wrap="on | off" is changed to aes-key-wrap="on | off" dea_key_wrap="on | off" is changed to dea-key-wrap="on | off" Check for the aes-key-wrap and dea-key-wrap machine options and set the appropriate KVM device attribute(s) to tell the kernel to enable or disable the AES/DEA protected key functions for the guest domain. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Tony Krowiak <akrowiak@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Message-Id: <1426164834-38648-4-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
| * s390x/kvm: make use of generic vm attribute checkDominik Dingel2015-03-161-35/+7
| | | | | | | | | | | | | | | | | | | | | | | | By using the new introduced generic interface we can remove redundancies and clean up. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Suggested-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Message-Id: <1426164834-38648-3-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
| * s390x/kvm: Guest Migration TOD clock synchronizationJason J. Herne2015-03-162-0/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Synchronizes the guest TOD clock across a migration by sending the guest TOD clock value to the destination system. If the guest TOD clock is not preserved across a migration then the guest's view of time will snap backwards if the destination host clock is behind the source host clock. This will cause the guest to hang immediately upon resuming on the destination system. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Message-Id: <1425912968-54387-1-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | tcg: Change translator-side labels to a pointerRichard Henderson2015-03-131-3/+4
|/ | | | | | | | | | | | | | | | | | | | | | | | | | This is improved type checking for the translators -- it's no longer possible to accidentally swap arguments to the branch functions. Note that the code generating backends still manipulate labels as int. With notable exceptions, the scope of the change is just a few lines for each target, so it's not worth building extra machinery to do this change in per-target increments. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
* Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell2015-03-121-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | misc fixes and cleanups A bunch of fixes all over the place, some of the bugs fixed are actually regressions. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Wed Mar 11 17:48:30 2015 GMT using RSA key ID D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * remotes/mst/tags/for_upstream: (25 commits) virtio-scsi: remove empty wrapper for cmd virtio-scsi: clean out duplicate cdb field virtio-scsi: fix cdb/sense size uapi/virtio_scsi: allow overriding CDB/SENSE size virtio-scsi: drop duplicate CDB/SENSE SIZE exec: don't include hw/boards for linux-user acpi: specify format for build_append_namestring MAINTAINERS: drop aliguori@amazon.com tpm: Move memory subregion function into realize function virtio-pci: Convert to realize() pci: Convert pci_nic_init() to Error to avoid qdev_init() machine: query mem-merge machine property machine: query dump-guest-core machine property hw/boards: make it safe to include for linux-user machine: query phandle-start machine property machine: query kvm-shadow-mem machine property kvm: add machine state to kvm_arch_init machine: query kernel-irqchip property machine: allowed/required kernel-irqchip support machine: replace qemu opts with iommu property ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * kvm: add machine state to kvm_arch_initMarcel Apfelbaum2015-03-111-1/+1
| | | | | | | | | | | | | | | | | | Needed to query machine's properties. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* | Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20150310' into ↵Peter Maydell2015-03-116-71/+431
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | staging s390x/kvm: Features and fixes for 2.3 - an extension to the elf loader to allow relocations - make the ccw bios relocatable. This allows for bigger ramdisks or smaller guests - Handle all slow SIGPs in QEMU (instead of kernel) for better compliance and correctness - tell the KVM module the maximum guest size. This allows KVM to reduce the number or page table levels - Several fixes/cleanups # gpg: Signature made Wed Mar 11 10:17:13 2015 GMT using RSA key ID B5A61C7C # gpg: Good signature from "Christian Borntraeger (IBM) <borntraeger@de.ibm.com>" * remotes/borntraeger/tags/s390x-20150310: s390-ccw: rebuild BIOS s390/bios: Make the s390-ccw.img relocatable elf-loader: Provide the possibility to relocate s390 ELF files s390-ccw.img: Reinitialize guessing on reboot s390-ccw.img: Allow bigger ramdisk sizes or offsets s390x/kvm: passing max memory size to accelerator virtio-ccw: Convert to realize() virtio-s390: Convert to realize() virtio-s390: s390_virtio_device_init() can't fail, simplify s390x/kvm: enable the new SIGP handling in user space s390x/kvm: deliver SIGP RESTART directly if stopped s390x: add function to deliver restart irqs s390x/kvm: SIGP START is only applicable when STOPPED s390x/kvm: implement handling of new SIGP orders s390x/kvm: trace all SIGP orders s390x/kvm: helper to set the SIGP status in SigpInfo s390x/kvm: pass the SIGP instruction parameter to the SIGP handler s390x/kvm: more details for SIGP handler with one destination vcpu s390x: introduce defines for SIGP condition codes synchronize Linux headers to 4.0-rc3 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | s390x/kvm: passing max memory size to acceleratorDominik Dingel2015-03-102-0/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With "KVM: s390: Allow userspace to limit guest memory size" KVM is able to do some optimizations based on the guest memory limit. The guest memory limit is computed by the initial definition and with the notion of hotplugged memory. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Message-Id: <1425570981-40609-3-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
| * | s390x/kvm: enable the new SIGP handling in user spaceDavid Hildenbrand2015-03-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All required SIGP handlers have been implemented in QEMU. Let's enable the new sigp handling in user space if the kernel supports it. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <1424783731-43426-11-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
| * | s390x/kvm: deliver SIGP RESTART directly if stoppedDavid Hildenbrand2015-03-101-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the PoP, a restart irq has to be delivered "without first honoring any other pending interruptions", if a cpu is in the STOPPED state. While it is hard to implement this case in kvm, it can easily be handled in qemu. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <1424783731-43426-10-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
| * | s390x: add function to deliver restart irqsDavid Hildenbrand2015-03-102-8/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a helper function to deliver restart irqs. To be able to be used by kvm, the psw load/store methods have to perform special cc-code handling only when running with tcg. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <1424783731-43426-9-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
| * | s390x/kvm: SIGP START is only applicable when STOPPEDDavid Hildenbrand2015-03-101-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for other CPU states, SIGP START will only start a VCPU if it is in the STOPPED state. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <1424783731-43426-8-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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