- 26 Mar, 2014 3 commits
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Anton Blanchard authored
I noticed KVM is broken when KVM in-kernel XICS emulation (CONFIG_KVM_XICS) is disabled. The problem was introduced in 48eaef05 (KVM: PPC: Book3S HV: use xics_wake_cpu only when defined). It used CONFIG_KVM_XICS to wrap xics_wake_cpu, where CONFIG_PPC_ICP_NATIVE should have been used. Signed-off-by:
Anton Blanchard <anton@samba.org> Cc: stable@vger.kernel.org Signed-off-by:
Paul Mackerras <paulus@samba.org> Acked-by:
Scott Wood <scottwood@freescale.com>
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Laurent Dufour authored
This introduces the H_GET_TCE hypervisor call, which is basically the reverse of H_PUT_TCE, as defined in the Power Architecture Platform Requirements (PAPR). The hcall H_GET_TCE is required by the kdump kernel, which uses it to retrieve TCEs set up by the previous (panicked) kernel. Signed-off-by:
Laurent Dufour <ldufour@linux.vnet.ibm.com> Signed-off-by:
Alexander Graf <agraf@suse.de> Signed-off-by:
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Greg Kurz authored
When the guest does an MMIO write which is handled successfully by an ioeventfd, ioeventfd_write() returns 0 (success) and kvmppc_handle_store() returns EMULATE_DONE. Then kvmppc_emulate_mmio() converts EMULATE_DONE to RESUME_GUEST_NV and this causes an exit from the loop in kvmppc_vcpu_run_hv(), causing an exit back to userspace with a bogus exit reason code, typically causing userspace (e.g. qemu) to crash with a message about an unknown exit code. This adds handling of RESUME_GUEST_NV in kvmppc_vcpu_run_hv() in order to fix that. For generality, we define a helper to check for either of the return-to-guest codes we use, RESUME_GUEST and RESUME_GUEST_NV, to make it easy to check for either and provide one place to update if any other return-to-guest code gets defined in future. Since it only affects Book3S HV for now, the helper is added to the kvm_book3s.h header file. We use the helper in two places in kvmppc_run_core() as well for future-proofing, though we don't see RESUME_GUEST_NV in either place at present. [paulus@samba.org - combined 4 patches into one, rewrote description] Suggested-by:
Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by:
Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by:
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- 13 Mar, 2014 2 commits
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Paul Mackerras authored
Commit 595e4f7e ("KVM: PPC: Book3S HV: Use load/store_fp_state functions in HV guest entry/exit") changed the register usage in kvmppc_save_fp() and kvmppc_load_fp() but omitted changing the instructions that load and save VRSAVE. The result is that the VRSAVE value was loaded from a constant address, and saved to a location past the end of the vcpu struct, causing host kernel memory corruption and various kinds of host kernel crashes. This fixes the problem by using register r31, which contains the vcpu pointer, instead of r3 and r4. Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Paul Mackerras authored
Commit 7b490411 ("KVM: PPC: Book3S HV: Add new state for transactional memory") incorrectly added some duplicate code to the guest exit path because I didn't manage to clean up after a rebase correctly. This removes the extraneous material. The presence of this extraneous code causes host crashes whenever a guest is run. Signed-off-by:
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- 29 Jan, 2014 4 commits
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git://github.com/agraf/linux-2.6Paolo Bonzini authored
Conflicts: arch/powerpc/kvm/book3s_hv_rmhandlers.S arch/powerpc/kvm/booke.c
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Paolo Bonzini authored
When Hyper-V hypervisor leaves are present, KVM must relocate its own leaves at 0x40000100, because Windows does not look for Hyper-V leaves at indices other than 0x40000000. In this case, the KVM features are at 0x40000101, but the old code would always look at 0x40000001. Fix by using kvm_cpuid_base(). This also requires making the function non-inline, since kvm_cpuid_base() is static. Fixes: 1085ba7f Cc: stable@vger.kernel.org Cc: mtosatti@redhat.com Signed-off-by:
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Paolo Bonzini authored
It is unnecessary to go through hypervisor_cpuid_base every time a leaf is found (which will be every time a feature is requested after the next patch). Fixes: 1085ba7f Cc: stable@vger.kernel.org Cc: mtosatti@redhat.com Signed-off-by:
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Paolo Bonzini authored
Self explanatory. Reported-by:
Radim Krcmar <rkrcmar@redhat.com> Cc: Vadim Rozenfeld <vrozenfe@redhat.com> Signed-off-by:
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- 27 Jan, 2014 21 commits
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Paul Mackerras authored
When the PR host is running on a POWER8 machine in POWER8 mode, it will use doorbell interrupts for IPIs. If one of them arrives while we are in the guest, we pop out of the guest with trap number 0xA00, which isn't handled by kvmppc_handle_exit_pr, leading to the following BUG_ON: [ 331.436215] exit_nr=0xa00 | pc=0x1d2c | msr=0x800000000000d032 [ 331.437522] ------------[ cut here ]------------ [ 331.438296] kernel BUG at arch/powerpc/kvm/book3s_pr.c:982! [ 331.439063] Oops: Exception in kernel mode, sig: 5 [#2] [ 331.439819] SMP NR_CPUS=1024 NUMA pSeries [ 331.440552] Modules linked in: tun nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw virtio_net kvm binfmt_misc ibmvscsi scsi_transport_srp scsi_tgt virtio_blk [ 331.447614] CPU: 11 PID: 1296 Comm: qemu-system-ppc Tainted: G D 3.11.7-200.2.fc19.ppc64p7 #1 [ 331.448920] task: c0000003bdc8c000 ti: c0000003bd32c000 task.ti: c0000003bd32c000 [ 331.450088] NIP: d0000000025d6b9c LR: d0000000025d6b98 CTR: c0000000004cfdd0 [ 331.451042] REGS: c0000003bd32f420 TRAP: 0700 Tainted: G D (3.11.7-200.2.fc19.ppc64p7) [ 331.452331] MSR: 800000000282b032 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI> CR: 28004824 XER: 20000000 [ 331.454616] SOFTE: 1 [ 331.455106] CFAR: c000000000848bb8 [ 331.455726] GPR00: d0000000025d6b98 c0000003bd32f6a0 d0000000026017b8 0000000000000032 GPR04: c0000000018627f8 c000000001873208 320d0a3030303030 3030303030643033 GPR08: c000000000c490a8 0000000000000000 0000000000000000 0000000000000002 GPR12: 0000000028004822 c00000000fdc6300 0000000000000000 00000100076ec310 GPR16: 000000002ae343b8 00003ffffd397398 0000000000000000 0000000000000000 GPR20: 00000100076f16f4 00000100076ebe60 0000000000000008 ffffffffffffffff GPR24: 0000000000000000 0000008001041e60 0000000000000000 0000008001040ce8 GPR28: c0000003a2d80000 0000000000000a00 0000000000000001 c0000003a2681810 [ 331.466504] NIP [d0000000025d6b9c] .kvmppc_handle_exit_pr+0x75c/0xa80 [kvm] [ 331.466999] LR [d0000000025d6b98] .kvmppc_handle_exit_pr+0x758/0xa80 [kvm] [ 331.467517] Call Trace: [ 331.467909] [c0000003bd32f6a0] [d0000000025d6b98] .kvmppc_handle_exit_pr+0x758/0xa80 [kvm] (unreliable) [ 331.468553] [c0000003bd32f750] [d0000000025d98f0] kvm_start_lightweight+0xb4/0xc4 [kvm] [ 331.469189] [c0000003bd32f920] [d0000000025d7648] .kvmppc_vcpu_run_pr+0xd8/0x270 [kvm] [ 331.469838] [c0000003bd32f9c0] [d0000000025cf748] .kvmppc_vcpu_run+0xc8/0xf0 [kvm] [ 331.470790] [c0000003bd32fa50] [d0000000025cc19c] .kvm_arch_vcpu_ioctl_run+0x5c/0x1b0 [kvm] [ 331.471401] [c0000003bd32fae0] [d0000000025c4888] .kvm_vcpu_ioctl+0x478/0x730 [kvm] [ 331.472026] [c0000003bd32fc90] [c00000000026192c] .do_vfs_ioctl+0x4dc/0x7a0 [ 331.472561] [c0000003bd32fd80] [c000000000261cc4] .SyS_ioctl+0xd4/0xf0 [ 331.473095] [c0000003bd32fe30] [c000000000009ed8] syscall_exit+0x0/0x98 [ 331.473633] Instruction dump: [ 331.473766] 4bfff9b4 2b9d0800 419efc18 60000000 60420000 3d220000 e8bf11a0 e8df12a8 [ 331.474733] 7fa4eb78 e8698660 48015165 e8410028 <0fe00000> 813f00e4 3ba00000 39290001 [ 331.475386] ---[ end trace 49fc47d994c1f8f2 ]--- [ 331.479817] This fixes the problem by making kvmppc_handle_exit_pr() recognize the interrupt. We also need to jump to the doorbell interrupt handler in book3s_segment.S to handle the interrupt on the way out of the guest. Having done that, there's nothing further to be done in kvmppc_handle_exit_pr(). Signed-off-by:
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Michael Neuling authored
This adds the software abort code defines for transactional memory (TM). These values are from PAPR. Signed-off-by:
Michael Neuling <mikey@neuling.org> Signed-off-by:
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Michael Neuling authored
Add new state for transactional memory (TM) to kvm_vcpu_arch. Also add asm-offset bits that are going to be required. This also moves the existing TFHAR, TFIAR and TEXASR SPRs into a CONFIG_PPC_TRANSACTIONAL_MEM section. This requires some code changes to ensure we still compile with CONFIG_PPC_TRANSACTIONAL_MEM=N. Much of the added the added #ifdefs are removed in a later patch when the bulk of the TM code is added. Signed-off-by:
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Michael Neuling authored
There are no processors in existence that have TM but no VMX or VSX. So let's makes CONFIG_PPC_TRANSACTIONAL_MEM select both CONFIG_VSX and CONFIG_ALTIVEC. This makes the code a lot simpler by removing the need for a bunch of #ifdefs. Signed-off-by:
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Anton Blanchard authored
We create a guest MSR from scratch when delivering exceptions in a few places. Instead of extracting LPCR[ILE] and inserting it into MSR_LE each time, we simply create a new variable intr_msr which contains the entire MSR to use. For a little-endian guest, userspace needs to set the ILE (interrupt little-endian) bit in the LPCR for each vcpu (or at least one vcpu in each virtual core). [paulus@samba.org - removed H_SET_MODE implementation from original version of the patch, and made kvmppc_set_lpcr update vcpu->arch.intr_msr.] Signed-off-by:
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Paul Mackerras authored
The DABRX (DABR extension) register on POWER7 processors provides finer control over which accesses cause a data breakpoint interrupt. It contains 3 bits which indicate whether to enable accesses in user, kernel and hypervisor modes respectively to cause data breakpoint interrupts, plus one bit that enables both real mode and virtual mode accesses to cause interrupts. Currently, KVM sets DABRX to allow both kernel and user accesses to cause interrupts while in the guest. This adds support for the guest to specify other values for DABRX. PAPR defines a H_SET_XDABR hcall to allow the guest to set both DABR and DABRX with one call. This adds a real-mode implementation of H_SET_XDABR, which shares most of its code with the existing H_SET_DABR implementation. To support this, we add a per-vcpu field to store the DABRX value plus code to get and set it via the ONE_REG interface. For Linux guests to use this new hcall, userspace needs to add "hcall-xdabr" to the set of strings in the /chosen/hypertas-functions property in the device tree. If userspace does this and then migrates the guest to a host where the kernel doesn't include this patch, then userspace will need to implement H_SET_XDABR by writing the specified DABR value to the DABR using the ONE_REG interface. In that case, the old kernel will set DABRX to DABRX_USER | DABRX_KERNEL. That should still work correctly, at least for Linux guests, since Linux guests cope with getting data breakpoint interrupts in modes that weren't requested by just ignoring the interrupt, and Linux guests never set DABRX_BTI. The other thing this does is to make H_SET_DABR and H_SET_XDABR work on POWER8, which has the DAWR and DAWRX instead of DABR/X. Guests that know about POWER8 should use H_SET_MODE rather than H_SET_[X]DABR, but guests running in POWER7 compatibility mode will still use H_SET_[X]DABR. For them, this adds the logic to convert DABR/X values into DAWR/X values on POWER8. Signed-off-by:
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Paul Mackerras authored
POWER8 has support for hypervisor doorbell interrupts. Though the kernel doesn't use them for IPIs on the powernv platform yet, it probably will in future, so this makes KVM cope gracefully if a hypervisor doorbell interrupt arrives while in a guest. Signed-off-by:
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Paul Mackerras authored
POWER8 has a bit in the LPCR to enable or disable the PURR and SPURR registers to count when in the guest. Set this bit. POWER8 has a field in the LPCR called AIL (Alternate Interrupt Location) which is used to enable relocation-on interrupts. Allow userspace to set this field. Signed-off-by:
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Paul Mackerras authored
* SRR1 wake reason field for system reset interrupt on wakeup from nap is now a 4-bit field on P8, compared to 3 bits on P7. * Set PECEDP in LPCR when napping because of H_CEDE so guest doorbells will wake us up. * Waking up from nap because of a guest doorbell interrupt is not a reason to exit the guest. Signed-off-by:
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Paul Mackerras authored
Currently in book3s_hv_rmhandlers.S we have three places where we have woken up from nap mode and we check the reason field in SRR1 to see what event woke us up. This consolidates them into a new function, kvmppc_check_wake_reason. It looks at the wake reason field in SRR1, and if it indicates that an external interrupt caused the wakeup, calls kvmppc_read_intr to check what sort of interrupt it was. This also consolidates the two places where we synthesize an external interrupt (0x500 vector) for the guest. Now, if the guest exit code finds that there was an external interrupt which has been handled (i.e. it was an IPI indicating that there is now an interrupt pending for the guest), it jumps to deliver_guest_interrupt, which is in the last part of the guest entry code, where we synthesize guest external and decrementer interrupts. That code has been streamlined a little and now clears LPCR[MER] when appropriate as well as setting it. The extra clearing of any pending IPI on a secondary, offline CPU thread before going back to nap mode has been removed. It is no longer necessary now that we have code to read and acknowledge IPIs in the guest exit path. This fixes a minor bug in the H_CEDE real-mode handling - previously, if we found that other threads were already exiting the guest when we were about to go to nap mode, we would branch to the cede wakeup path and end up looking in SRR1 for a wakeup reason. Now we branch to a point after we have checked the wakeup reason. This also fixes a minor bug in kvmppc_read_intr - previously it could return 0xff rather than 1, in the case where we find that a host IPI is pending after we have cleared the IPI. Now it returns 1. Signed-off-by:
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Paul Mackerras authored
This allows us to select architecture 2.05 (POWER6) or 2.06 (POWER7) compatibility modes on a POWER8 processor. (Note that transactional memory is disabled for usermode if either or both of the PCR_TM_DIS and PCR_ARCH_206 bits are set.) Signed-off-by:
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Michael Ellerman authored
At present this should never happen, since the host kernel sets HFSCR to allow access to all facilities. It's better to be prepared to handle it cleanly if it does ever happen, though. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Paul Mackerras authored
POWER8 has 512 sets in the TLB, compared to 128 for POWER7, so we need to do more tlbiel instructions when flushing the TLB on POWER8. Signed-off-by:
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Michael Neuling authored
This adds fields to the struct kvm_vcpu_arch to store the new guest-accessible SPRs on POWER8, adds code to the get/set_one_reg functions to allow userspace to access this state, and adds code to the guest entry and exit to context-switch these SPRs between host and guest. Note that DPDES (Directed Privileged Doorbell Exception State) is shared between threads on a core; hence we store it in struct kvmppc_vcore and have the master thread save and restore it. Signed-off-by:
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Paul Mackerras authored
On a threaded processor such as POWER7, we group VCPUs into virtual cores and arrange that the VCPUs in a virtual core run on the same physical core. Currently we don't enforce any correspondence between virtual thread numbers within a virtual core and physical thread numbers. Physical threads are allocated starting at 0 on a first-come first-served basis to runnable virtual threads (VCPUs). POWER8 implements a new "msgsndp" instruction which guest kernels can use to interrupt other threads in the same core or sub-core. Since the instruction takes the destination physical thread ID as a parameter, it becomes necessary to align the physical thread IDs with the virtual thread IDs, that is, to make sure virtual thread N within a virtual core always runs on physical thread N. This means that it's possible that thread 0, which is where we call __kvmppc_vcore_entry, may end up running some other vcpu than the one whose task called kvmppc_run_core(), or it may end up running no vcpu at all, if for example thread 0 of the virtual core is currently executing in userspace. However, we do need thread 0 to be responsible for switching the MMU -- a previous version of this patch that had other threads switching the MMU was found to be responsible for occasional memory corruption and machine check interrupts in the guest on POWER7 machines. To accommodate this, we no longer pass the vcpu pointer to __kvmppc_vcore_entry, but instead let the assembly code load it from the PACA. Since the assembly code will need to know the kvm pointer and the thread ID for threads which don't have a vcpu, we move the thread ID into the PACA and we add a kvm pointer to the virtual core structure. In the case where thread 0 has no vcpu to run, it still calls into kvmppc_hv_entry in order to do the MMU switch, and then naps until either its vcpu is ready to run in the guest, or some other thread needs to exit the guest. In the latter case, thread 0 jumps to the code that switches the MMU back to the host. This control flow means that now we switch the MMU before loading any guest vcpu state. Similarly, on guest exit we now save all the guest vcpu state before switching the MMU back to the host. This has required substantial code movement, making the diff rather large. Signed-off-by:
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Michael Neuling authored
POWER8 doesn't have the DABR and DABRX registers; instead it has new DAWR/DAWRX registers, which will be handled in a later patch. Signed-off-by:
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Scott Wood authored
Simplify the handling of lazy EE by going directly from fully-enabled to hard-disabled. This replaces the lazy_irq_pending() check (including its misplaced kvm_guest_exit() call). As suggested by Tiejun Chen, move the interrupt disabling into kvmppc_prepare_to_enter() rather than have each caller do it. Also move the IRQ enabling on heavyweight exit into kvmppc_prepare_to_enter(). Signed-off-by:
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Mihai Caraman authored
Use gva_t instead of unsigned int for eaddr in deliver_tlb_miss(). Signed-off-by:
Mihai Caraman <mihai.caraman@freescale.com> CC: stable@vger.kernel.org Signed-off-by:
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Andreas Schwab authored
Signed-off-by:
Andreas Schwab <schwab@linux-m68k.org> CC: stable@vger.kernel.org Signed-off-by:
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Cédric Le Goater authored
MMIO emulation reads the last instruction executed by the guest and then emulates. If the guest is running in Little Endian order, or more generally in a different endian order of the host, the instruction needs to be byte-swapped before being emulated. This patch adds a helper routine which tests the endian order of the host and the guest in order to decide whether a byteswap is needed or not. It is then used to byteswap the last instruction of the guest in the endian order of the host before MMIO emulation is performed. Finally, kvmppc_handle_load() of kvmppc_handle_store() are modified to reverse the endianness of the MMIO if required. Signed-off-by:
Cédric Le Goater <clg@fr.ibm.com> [agraf: add booke handling] Signed-off-by:
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Jan Kiszka authored
Check for invalid state transitions on guest-initiated updates of MSR_IA32_APICBASE. This address both enabling of the x2APIC when it is not supported and all invalid transitions as described in SDM section 10.12.5. It also checks that no reserved bit is set in APICBASE by the guest. Signed-off-by:
Jan Kiszka <jan.kiszka@siemens.com> [Use cpuid_maxphyaddr instead of guest_cpuid_get_phys_bits. - Paolo] Signed-off-by:
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- 24 Jan, 2014 1 commit
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Vadim Rozenfeld authored
Signed-off-by:
Vadim Rozenfeld <vrozenfe@redhat.com> Reviewed-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
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- 23 Jan, 2014 9 commits
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Vadim Rozenfeld authored
Signed-off-by:
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Paolo Bonzini authored
Merge tag 'kvm-s390-20140117' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-queue This deals with 2 guest features that need enablement in the kvm host: - transactional execution - lpp sampling support In addition there is also a fix to the virtio-ccw guest driver. This will enable future features
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds authored
Pull module updates from Rusty Russell. * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: module: Add missing newline in printk call. module: fix coding style export: declare ksymtab symbols module.h: Remove unnecessary semicolon params: improve standard definitions Add Documentation/module-signing.txt file
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds authored
Pull virtio update from Rusty Russell: "A few simple fixes. Quiet cycle" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: drivers: virtio: Mark function virtballoon_migratepage() as static in virtio_balloon.c virtio-scsi: Fix hotcpu_notifier use-after-free with virtscsi_freeze virtio: pci: remove unnecessary pci_set_drvdata()
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull Xen updates from Konrad Rzeszutek Wilk: "Two major features that Xen community is excited about: The first is event channel scalability by David Vrabel - we switch over from an two-level per-cpu bitmap of events (IRQs) - to an FIFO queue with priorities. This lets us be able to handle more events, have lower latency, and better scalability. Good stuff. The other is PVH by Mukesh Rathor. In short, PV is a mode where the kernel lets the hypervisor program page-tables, segments, etc. With EPT/NPT capabilities in current processors, the overhead of doing this in an HVM (Hardware Virtual Machine) container is much lower than the hypervisor doing it for us. In short we let a PV guest run without doing page-table, segment, syscall, etc updates through the hypervisor - instead it is all done within the guest container. It is a "hybrid" PV - hence the 'PVH' name - a PV guest within an HVM container. The major benefits are less code to deal with - for example we only use one function from the the pv_mmu_ops (which has 39 function calls); faster performance for syscall (no context switches into the hypervisor); less traps on various operations; etc. It is still being baked - the ABI is not yet set in stone. But it is pretty awesome and we are excited about it. Lastly, there are some changes to ARM code - you should get a simple conflict which has been resolved in #linux-next. In short, this pull has awesome features. Features: - FIFO event channels. Key advantages: support for over 100,000 events (2^17), 16 different event priorities, improved fairness in event latency through the use of FIFOs. - Xen PVH support. "It’s a fully PV kernel mode, running with paravirtualized disk and network, paravirtualized interrupts and timers, no emulated devices of any kind (and thus no qemu), no BIOS or legacy boot — but instead of requiring PV MMU, it uses the HVM hardware extensions to virtualize the pagetables, as well as system calls and other privileged operations." (from "The Paravirtualization Spectrum, Part 2: From poles to a spectrum") Bug-fixes: - Fixes in balloon driver (refactor and make it work under ARM) - Allow xenfb to be used in HVM guests. - Allow xen_platform_pci=0 to work properly. - Refactors in event channels" * tag 'stable/for-linus-3.14-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (52 commits) xen/pvh: Set X86_CR0_WP and others in CR0 (v2) MAINTAINERS: add git repository for Xen xen/pvh: Use 'depend' instead of 'select'. xen: delete new instances of __cpuinit usage xen/fb: allow xenfb initialization for hvm guests xen/evtchn_fifo: fix error return code in evtchn_fifo_setup() xen-platform: fix error return code in platform_pci_init() xen/pvh: remove duplicated include from enlighten.c xen/pvh: Fix compile issues with xen_pvh_domain() xen: Use dev_is_pci() to check whether it is pci device xen/grant-table: Force to use v1 of grants. xen/pvh: Support ParaVirtualized Hardware extensions (v3). xen/pvh: Piggyback on PVHVM XenBus. xen/pvh: Piggyback on PVHVM for grant driver (v4) xen/grant: Implement an grant frame array struct (v3). xen/grant-table: Refactor gnttab_init xen/grants: Remove gnttab_max_grant_frames dependency on gnttab_init. xen/pvh: Piggyback on PVHVM for event channels (v2) xen/pvh: Update E820 to work with PVH (v2) xen/pvh: Secondary VCPU bringup (non-bootup CPUs) ... -
git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM updates from Paolo Bonzini: "First round of KVM updates for 3.14; PPC parts will come next week. Nothing major here, just bugfixes all over the place. The most interesting part is the ARM guys' virtualized interrupt controller overhaul, which lets userspace get/set the state and thus enables migration of ARM VMs" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (67 commits) kvm: make KVM_MMU_AUDIT help text more readable KVM: s390: Fix memory access error detection KVM: nVMX: Update guest activity state field on L2 exits KVM: nVMX: Fix nested_run_pending on activity state HLT KVM: nVMX: Clean up handling of VMX-related MSRs KVM: nVMX: Add tracepoints for nested_vmexit and nested_vmexit_inject KVM: nVMX: Pass vmexit parameters to nested_vmx_vmexit KVM: nVMX: Leave VMX mode on clearing of feature control MSR KVM: VMX: Fix DR6 update on #DB exception KVM: SVM: Fix reading of DR6 KVM: x86: Sync DR7 on KVM_SET_DEBUGREGS add support for Hyper-V reference time counter KVM: remove useless write to vcpu->hv_clock.tsc_timestamp KVM: x86: fix tsc catchup issue with tsc scaling KVM: x86: limit PIT timer frequency KVM: x86: handle invalid root_hpa everywhere kvm: Provide kvm_vcpu_eligible_for_directed_yield() stub kvm: vfio: silence GCC warning KVM: ARM: Remove duplicate include arm/arm64: KVM: relax the requirements of VMA alignment for THP ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds authored
Pull trivial tree updates from Jiri Kosina: "Usual rocket science stuff from trivial.git" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) neighbour.h: fix comment sched: Fix warning on make htmldocs caused by wait.h slab: struct kmem_cache is protected by slab_mutex doc: Fix typo in USB Gadget Documentation of/Kconfig: Spelling s/one/once/ mkregtable: Fix sscanf handling lp5523, lp8501: comment improvements thermal: rcar: comment spelling treewide: fix comments and printk msgs IXP4xx: remove '1 &&' from a condition check in ixp4xx_restart() Documentation: update /proc/uptime field description Documentation: Fix size parameter for snprintf arm: fix comment header and macro name asm-generic: uaccess: Spelling s/a ny/any/ mtd: onenand: fix comment header doc: driver-model/platform.txt: fix a typo drivers: fix typo in DEVTMPFS_MOUNT Kconfig help text doc: Fix typo (acces_process_vm -> access_process_vm) treewide: Fix typos in printk drivers/gpu/drm/qxl/Kconfig: reformat the help text ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID updates from Jiri Kosina: - quite some work on hid-sony driver in order to have DualShock 4 device properly supported, from Frank Praznik - fixed support for suspending I2C conntected devices, from Mika Westerberg - regression fix for 0xff05 usage on Microsoft Ergonomy, from Jiri Kosina - support for Synaptics HD touchscreen, from AceLan Kao - workaround for USB 3.0 problem for logitech-dj connected devices, from Benjamin Tisssoires - support for Logitech Dual Action pads, from Vitaly Katraew - quite a few other assorted fixes and device ID additions * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (33 commits) HID: sony: Use colors for the Dualshock 4 LED names HID: sony: Add annotated HID descriptor for the Dualshock 4 HID: sony: Cache the output report for the Dualshock 4 HID: sony: Map gyroscopes and accelerometers to axes HID: sony: Fix spacing in the device definitions. HID: sony: Use standard output reports instead of raw reports to send data to the Dualshock 4. HID: sony: Use separate identifiers for USB and Bluetooth connected Dualshock 4 controllers. HID: hid-holtek-mouse: add new a070 mouse HID: hid-sensor-hub: Fix buggy report descriptors HID: logitech-dj: Fix USB 3.0 issue HID: sony: Rename worker function HID: sony: Add LED controls for the Dualshock 4 HID: sony: Add force-feedback support for the Dualshock 4 HID: hidraw: make comment more accurate and nicer HID: sony: fix error return code HID: input: fix input sysfs path for hid devices HID: debug: add labels for some new buttons HID: remove SIS entries from hid_have_special_driver[] HID: microsoft: no fallthrough in MS ergonomy 0xff05 usage HID: add support for SiS multitouch panel in the touch monitor LG 23ET83V ...
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull device-mapper changes from Mike Snitzer: "A lot of attention was paid to improving the thin-provisioning target's handling of metadata operation failures and running out of space. A new 'error_if_no_space' feature was added to allow users to error IOs rather than queue them when either the data or metadata space is exhausted. Additional fixes/features include: - a few fixes to properly support thin metadata device resizing - a solution for reliably waiting for a DM device's embedded kobject to be released before destroying the device - old dm-snapshot is updated to use the dm-bufio interface to take advantage of readahead capabilities that improve snapshot activation - new dm-cache target tunables to control how quickly data is promoted to the cache (fast) device - improved write efficiency of cluster mirror target by combining userspace flush and mark requests" * tag 'dm-3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (35 commits) dm log userspace: allow mark requests to piggyback on flush requests dm space map metadata: fix bug in resizing of thin metadata dm cache: add policy name to status output dm thin: fix pool feature parsing dm sysfs: fix a module unload race dm snapshot: use dm-bufio prefetch dm snapshot: use dm-bufio dm snapshot: prepare for switch to using dm-bufio dm snapshot: use GFP_KERNEL when initializing exceptions dm cache: add block sizes and total cache blocks to status output dm btree: add dm_btree_find_lowest_key dm space map metadata: fix extending the space map dm space map common: make sure new space is used during extend dm: wait until embedded kobject is released before destroying a device dm: remove pointless kobject comparison in dm_get_from_kobject dm snapshot: call destroy_work_on_stack() to pair with INIT_WORK_ONSTACK() dm cache policy mq: introduce three promotion threshold tunables dm cache policy mq: use list_del_init instead of list_del + INIT_LIST_HEAD dm thin: fix set_pool_mode exposed pool operation races dm thin: eliminate the no_free_space flag ...
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