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2013-07-05linux-user: Do not ignore mmap failure from hostJürg Billeter
File mapping may fail with EACCES. Signed-off-by: Jürg Billeter <j@bitron.ch> Message-id: 1372498892-23676-1-git-send-email-j@bitron.ch Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2013-07-05linux-user: improve target_to_host_sock_type conversionPetar Jovanovic
Previous implementation has failed to take into account different value of SOCK_NONBLOCK on target and host, and existence of SOCK_CLOEXEC. The same conversion has to be applied both for do_socket and do_socketpair, so the code has been isolated in a static inline function. enum sock_type in linux-user/socket.h has been extended to include TARGET_SOCK_CLOEXEC and TARGET_SOCK_NONBLOCK, similar to definition in libc. The patch also includes necessary code style changes (tab to spaces) in the header file since most of the file has been touched by this change. Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com> Message-id: 1372639454-7560-1-git-send-email-petar.jovanovic@rt-rk.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2013-07-05user-exec.c: Set is_write correctly in the ARM cpu_signal_handler()Peter Maydell
In the ARM implementation of cpu_signal_handler(), set is_write correctly using the FSR value which the kernel passes us in the error_code field of uc_mcontext. Since the WnR bit of the FSR was only introduced in ARMv6, this means that v5 cores will continue to behave as before this patch, but they are not really supported as hosts for linux-user mode anyway since they do not have the modern behaviour for unaligned accesses. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1370352705-27590-1-git-send-email-peter.maydell@linaro.org
2013-07-05linux-user: Fix sys_utimensat (would not compile on old glibc)Peter Maydell
Commit c0d472b12e accidentally dropped the definition of __NR_SYS_utimensat even though its use is guarded by CONFIG_UTIMENSAT, not CONFIG_ATFILE. Some older glibc don't have utimensat() (even if they have the other *at() functions). Fix this by correctly cleaning up the sys_utimensat() implementation and #defines, so that we always provide the syscall if needed whether we're doing it via glibc or not. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 1371743841-26110-1-git-send-email-peter.maydell@linaro.org
2013-07-05linux-user: fix signal number range checkAndreas Schwab
When translating between host and target signal numbers keep negative numbers unchanged, avoiding access beyond array bounds. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 878v2b8sek.fsf@igel.home
2013-07-05linux-user: add SIOCADDRT/SIOCDELRT supportLaurent Vivier
This allows to pass the device name. You can test this with the "route" command. WITHOUT this patch: $ sudo route add -net default gw 10.0.3.1 eth0 SIOCADDRT: Bad address $ netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Ifa 10.0.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth WITH this patch: $ sudo route add -net default gw 10.0.3.1 eth0 $ netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Ifa 0.0.0.0 10.0.3.1 0.0.0.0 UG 0 0 0 eth 10.0.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2013-07-05linux-user: handle /proc/$$ like /proc/selfAndreas Schwab
Some applications use /proc/$$/... (where $$ is the own pid) instead of /proc/self/... to refer to their own proc files. Extend the interception for open and readlink to handle this case. Also, do the same interception in readlinkat. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2013-07-03Merge remote-tracking branch 'qemu-kvm/uq/master' into stagingAnthony Liguori
# By Michael S. Tsirkin (2) and others # Via Paolo Bonzini * qemu-kvm/uq/master: kvmclock: clock should count only if vm is running pci-assign: remove the duplicate function name in debug message kvm: skip system call when msi route is unchanged kvm: zero-initialize KVM_SET_GSI_ROUTING input kvm: add detail error message when fail to add ioeventfd Message-id: 1372841072-22265-1-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-03kvmclock: clock should count only if vm is runningMarcelo Tosatti
kvmclock should not count while vm is paused, because: 1) if the vm is paused for long periods, timekeeping math can overflow while converting the (large) clocksource delta to nanoseconds. 2) Users rely on CLOCK_MONOTONIC to count run time, that is, time which OS has been in a runnable state (see CLOCK_BOOTTIME). Change kvmclock driver so as to save clock value when vm transitions from runnable to stopped state, and to restore clock value from stopped to runnable transition. Cc: qemu-stable@nongnu.org Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-03pci-assign: remove the duplicate function name in debug messageWanlong Gao
While DEBUG() already includes the function name. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-03kvm: skip system call when msi route is unchangedMichael S. Tsirkin
Some guests do a large number of mask/unmask calls which currently trigger expensive route update system calls. Detect that route in unchanged and skip the system call. Reported-by: "Zhanghaoyu (A)" <haoyu.zhang@huawei.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-07-03kvm: zero-initialize KVM_SET_GSI_ROUTING inputMichael S. Tsirkin
kvm_add_routing_entry makes an attempt to zero-initialize any new routing entry. However, it fails to initialize padding within the u field of the structure kvm_irq_routing_entry. Other functions like kvm_irqchip_update_msi_route also fail to initialize the padding field in kvm_irq_routing_entry. It's better to just make sure all input is initialized. Once it is, we can also drop complex field by field assignment and just do the simple *a = *b to update a route entry. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-07-03kvm: add detail error message when fail to add ioeventfdAmos Kong
I try to hotplug 28 * 8 multiple-function devices to guest with old host kernel, ioeventfds in host kernel will be exhausted, then qemu fails to allocate ioeventfds for blk/nic devices. It's better to add detail error here. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-07-01Merge remote-tracking branch 'agraf/ppc-for-upstream' into stagingAnthony Liguori
# By Alexander Graf (12) and others # Via Alexander Graf * agraf/ppc-for-upstream: (32 commits) PPC: Ignore writes to L2CR mac-io: Add escc-legacy memory alias region PPC: Newworld: Add second uninorth control register set PPC: Newworld: Add uninorth token register PPC: Add clock-frequency export for Mac machines PPC: Introduce an alias cache for faster lookups PPC: Fix GDB read on code area for PPC6xx PPC: Add dump_mmu() for 6xx target-ppc: Introduce unrealizefn for PowerPCCPU booke_ppc: limit booke timer to max when timeout overflow Graphics: Switch to 800x600x32 as default mode pseries: Update MAINTAINERS information target-ppc kvm: save cr register pseries: Fix compiler warning (conversion of pointer to integral value) spapr-rtas: add CPU argument to RTAS calls target-ppc: Change default machine for 64-bit ppc: do not register IABR SPR twice for 603e target-ppc: Drop redundant flags assignments from CPU families mpc8544_guts: Turn qdev initfn into instance_init mpc8544_guts: QOM'ify ... Message-id: 1372556709-23868-1-git-send-email-agraf@suse.de Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-01Merge remote-tracking branch 'cohuck/virtio-ccw-upstr' into stagingAnthony Liguori
# By Cornelia Huck # Via Cornelia Huck * cohuck/virtio-ccw-upstr: virtio-ccw: fix build breakage on windows Message-id: 1372669523-4039-1-git-send-email-cornelia.huck@de.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-01Merge remote-tracking branch 'luiz/queue/qmp' into stagingAnthony Liguori
# By Kevin Wolf # Via Luiz Capitulino * luiz/queue/qmp: hmp: Make "info block" output more readable Message-id: 1372452199-23237-1-git-send-email-lcapitulino@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-01virtio-ccw: fix build breakage on windowsCornelia Huck
event_notifier_get_fd() is not available on windows hosts. Fix this by moving the calls to event_notifier_get_fd() to the kvm code. Reported-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-07-01PPC: Ignore writes to L2CRAlexander Graf
The L2CR register contains a number of bits that either impose configuration which we can't deal with or mean "something is in progress until the bit is 0 again". Since we don't model the former and we do want to accomodate guests using the latter semantics, let's just ignore writes to L2CR. That way guests always read back 0 and are usually happy with that. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01mac-io: Add escc-legacy memory alias regionAlexander Graf
Mac OS X's debugging serial driver accesses the ESCC through a different register layout, called "escc-legacy". This layout differs from the normal escc register layout purely by the location of the respective registers. This patch adds a memory alias region that takes normal escc registers and maps them into the escc-legacy register space. With this patch applied, a Mac OS X guest successfully emits debug output on the serial port when run with debug parameters set, for example by running: $ qemu-system-ppc -prom-env -'boot-args=-v debug=0x8 io=0xff serial=0x3' \ -cdrom 10.4.iso -boot d Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Newworld: Add second uninorth control register setAlexander Graf
Mac OS X requires a second uninorth register set to be mapped a few bytes above the first one. Let's just expose it to make it happy. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Newworld: Add uninorth token registerAlexander Graf
Mac OS X expects the uninorth control register set to contain one register that always reads back what it writes in. Expose that. This is just a temporary hack. Eventually, we want to expose the uninorth (/uni-n in device tree) as a separate QOM device. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Add clock-frequency export for Mac machinesAlexander Graf
Support in fwcfg has been around for exposure of the clock-frequency CPU property. OpenBIOS reads it, we just never exposed it. Since Mac OS X is very picky about its clock frequency values, let's just take a known good value and always expose that. Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Introduce an alias cache for faster lookupsAlexander Graf
When running QEMU with "-cpu ?" we walk through every alias for every target CPU we know about. This takes several seconds on my very fast host system. Let's introduce a class object cache in the alias table. Using that we don't have to go through the tedious work of finding our target class. Instead, we can just go directly from the alias name to the target class pointer. This patch brings -cpu "?" to reasonable times again. Before: real 0m4.716s After: real 0m0.025s Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Fix GDB read on code area for PPC6xxFabien Chouteau
On PPC 6xx, data and code have separated TLBs. Until now QEMU was only looking at data TLBs, which is not good when GDB wants to read code. This patch adds a second call to get_physical_address() with an ACCESS_CODE type of access when the first call with ACCESS_INT fails. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Add dump_mmu() for 6xxFabien Chouteau
"(qemu) info tlb" is a very useful tool for debugging, so I implemented the missing 6xx version. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> [agraf: fix printfs on hwaddr to PRI] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01target-ppc: Introduce unrealizefn for PowerPCCPUAndreas Färber
Use it to clean up the opcode table, resolving a former TODO from Jocelyn. Also switch from malloc() to g_malloc(). Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01booke_ppc: limit booke timer to max when timeout overflowBharat Bhushan
Limit watchdog and fit timer to maximum timeout value which qemu timer can support (INT64_MAX). This maximum timeout will be hundreds of years, so limiting to max timeout is pretty safe. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01Graphics: Switch to 800x600x32 as default modeAlexander Graf
We have stayed at 800x600x15 as default graphics mode for the last 9 years. If there ever was a reason to be there, surely nobody remembers it. However, recently non-Linux PPC guests started to show bad effects on 15 bit color mode. They do work just fine with 32 bits however. So let's switch to 32 bit color as the default graphic mode. Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01pseries: Update MAINTAINERS informationDavid Gibson
I'm no longer at IBM, and therefore no long actively working on the pseries (aka sPAPR) qemu machine type. This patch removes my information in the MAINTAINERS file. While we're at it, I've added some extra file patterns for pseries specific files that weren't included in the existing pattern. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [agraf: Remove new maintainer addition] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01target-ppc kvm: save cr registerAlexey Kardashevskiy
This adds a missing code to save CR (condition register) via kvm_arch_put_registers(). kvm_arch_get_registers() already has it. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01pseries: Fix compiler warning (conversion of pointer to integral value)Stefan Weil
This kind of type cast must use uintptr_t or target_ulong to be portable for hosts with sizeof(void *) != sizeof(long). Here the value is assigned to a variable of type target_ulong. Signed-off-by: Stefan Weil <sw@weilnetz.de> [agraf: fix compilation on 32bit hosts] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01spapr-rtas: add CPU argument to RTAS callsAnthony Liguori
RTAS is a hypervisor provided binary blob that a guest loads and calls into to execute certain functions. It's similar to the vsyscall page in Linux or the short lived VMCI paravirt interface from VMware. The QEMU implementation of the RTAS blob is simply a passthrough that proxies all RTAS calls to the hypervisor via an hypercall. While we pass a CPU argument for hypercall handling in QEMU, we don't pass it for RTAS calls. Since some RTAs calls require making hypercalls (normally RTAS is implemented as guest code) we have nasty hacks to allow that. Add a CPU argument to RTAS call handling so we can more easily invoke hypercalls just as guest code would. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01target-ppc: Change default machine for 64-bitDavid Gibson
Currently, for qemu-system-ppc64, the default machine type is 'mac99'. The mac99 machine is not being actively maintained, and represents a bizarre hybrid of components that never actually existed as a real system. This patch changes the default machine to 'pseries', which is actively maintained and works well with most modern ppc64 Linux distributions as a guest. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [agraf: adjust commit message] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01ppc: do not register IABR SPR twice for 603eHervé Poussineau
IABR SPR is already registered in gen_spr_603(), called from init_proc_603E(). Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01target-ppc: Drop redundant flags assignments from CPU familiesAndreas Färber
Previous code has #define POWERPC_INSNS2_<family> PPC_NONE in some places for macrofied assignment to insns_flags2 field. PPC_NONE is defined as zero though and QOM classes are zero-initialized, so drop any pcc->insns_flags2 = PPC_NONE; assignments. PPC_NONE itself is still in use in translate.c. Suggested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01mpc8544_guts: Turn qdev initfn into instance_initAndreas Färber
SysBus can deal with NULL SysBusDeviceClass::init since 4ce5dae. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01mpc8544_guts: QOM'ifyAndreas Färber
Introduce type constant, cast macro and rename parent field. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01mpc8544_guts: Fix MemoryRegion nameAndreas Färber
6544 -> 8544 Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01intc/openpic_kvm: Fix QOM and build issuesAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01intc/openpic: Convert to QOM realizeAndreas Färber
Split qdev initfn into instance_init and realize functions. Change one occurrence of "klass" while at it. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01intc/openpic: QOM'ifyAndreas Färber
Introduce type constant and cast macro. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01kvm/openpic: in-kernel mpic supportScott Wood
Enables support for the in-kernel MPIC that thas been merged into the KVM next branch. This includes irqfd/KVM_IRQ_LINE support from Alex Graf (along with some other improvements). Note from Alex regarding kvm_irqchip_create(): On x86, one would call kvm_irqchip_create() to initialize an in-kernel interrupt controller. That function then goes ahead and initializes global capability variables as well as the default irq routing table. On ppc, we can't call kvm_irqchip_create() because we can have different types of interrupt controllers. So we want to do all the things that function would do for us in the in-kernel device init handler. Signed-off-by: Scott Wood <scottwood@freescale.com> [agraf: squash in kvm_irqchip_commit_routes patch, fix non-kvm build, fix ppcemb] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01PPC: Add non-kvm stub fileAlexander Graf
There are cases where a kvm provided function is called from generic hw code that doesn't know whether kvm is available or not. Provide a stub file which can provide simple replacement functions for those cases. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-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>
2013-07-01PPC: e500: factor out mpic init codeScott Wood
KVM in-kernel MPIC support is going to expand this even more, so let's keep it contained. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01openpic: factor out some common defines into openpic.hScott Wood
...for use by the KVM in-kernel irqchip stub. Signed-off-by: Scott Wood <scottwood@freescale.com> 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>
2013-06-28Merge remote-tracking branch 'mjt/trivial-patches' into stagingAnthony Liguori
# By Gerd Hoffmann (13) and Michael Tokarev (1) # Via Michael Tokarev * mjt/trivial-patches: doc: we use seabios, not bochs bios qemu-socket: don't leak opts on error qemu-char: report udp backend errors qemu-char: add -chardev mux support qemu-char: minor mux chardev fixes qemu-char: use ChardevBackendKind in CharDriver qemu-char: don't leak opts on error qemu-char: fix documentation for telnet+wait socket flags qemu-char: print notification to stderr qemu-char: use more specific error_setg_* variants qemu-char: check optional fields using has_* qemu-socket: catch monitor_get_fd failures qemu-socket: drop pointless allocation qemu-socket: zero-initialize SocketAddress Message-id: 1372443465-22384-1-git-send-email-mjt@msgid.tls.msk.ru Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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