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2013-04-16KVM: VMX: Enable acknowledge interupt on vmexitYang Zhang4-5/+64
The "acknowledge interrupt on exit" feature controls processor behavior for external interrupt acknowledgement. When this control is set, the processor acknowledges the interrupt controller to acquire the interrupt vector on VM exit. After enabling this feature, an interrupt which arrived when target cpu is running in vmx non-root mode will be handled by vmx handler instead of handler in idt. Currently, vmx handler only fakes an interrupt stack and jump to idt table to let real handler to handle it. Further, we will recognize the interrupt and only delivery the interrupt which not belong to current vcpu through idt table. The interrupt which belonged to current vcpu will be handled inside vmx handler. This will reduce the interrupt handle cost of KVM. Also, interrupt enable logic is changed if this feature is turnning on: Before this patch, hypervior call local_irq_enable() to enable it directly. Now IF bit is set on interrupt stack frame, and will be enabled on a return from interrupt handler if exterrupt interrupt exists. If no external interrupt, still call local_irq_enable() to enable it. Refer to Intel SDM volum 3, chapter 33.2. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-04-15KVM: Let ioapic know the irq line statusYang Zhang2-4/+6
Userspace may deliver RTC interrupt without query the status. So we want to track RTC EOI for this case. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-04-15KVM: Add reset/restore rtc_status supportYang Zhang2-0/+11
restore rtc_status from migration or save/restore Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-04-15KVM: Return destination vcpu on interrupt injectionYang Zhang2-11/+19
Add a new parameter to know vcpus who received the interrupt. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-04-15KVM: Add vcpu info to ioapic_update_eoi()Yang Zhang1-1/+1
Add vcpu info to ioapic_update_eoi, so we can know which vcpu issued this EOI. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-04-14KVM: nVMX: Avoid reading VM_EXIT_INTR_ERROR_CODE needlessly on nested exitsJan Kiszka1-1/+5
We only need to update vm_exit_intr_error_code if there is a valid exit interruption information and it comes with a valid error code. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: nVMX: Fix conditions for interrupt injectionJan Kiszka1-8/+12
If we are entering guest mode, we do not want L0 to interrupt this vmentry with all its side effects on the vmcs. Therefore, injection shall be disallowed during L1->L2 transitions, as in the previous version. However, this check is conceptually independent of nested_exit_on_intr, so decouple it. If L1 traps external interrupts, we can kick the guest from L2 to L1, also just like the previous code worked. But we no longer need to consider L1's idt_vectoring_info_field. It will always be empty at this point. Instead, if L2 has pending events, those are now found in the architectural queues and will, thus, prevent vmx_interrupt_allowed from being called at all. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: nVMX: Rework event injection and recoveryJan Kiszka1-35/+64
The basic idea is to always transfer the pending event injection on vmexit into the architectural state of the VCPU and then drop it from there if it turns out that we left L2 to enter L1, i.e. if we enter prepare_vmcs12. vmcs12_save_pending_events takes care to transfer pending L0 events into the queue of L1. That is mandatory as L1 may decide to switch the guest state completely, invalidating or preserving the pending events for later injection (including on a different node, once we support migration). This concept is based on the rule that a pending vmlaunch/vmresume is not canceled. Otherwise, we would risk to lose injected events or leak them into the wrong queues. Encode this rule via a WARN_ON_ONCE at the entry of nested_vmx_vmexit. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: nVMX: Fix injection of PENDING_INTERRUPT and NMI_WINDOW exits to L1Jan Kiszka1-7/+2
Check if the interrupt or NMI window exit is for L1 by testing if it has the corresponding controls enabled. This is required when we allow direct injection from L0 to L2 Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: emulator: mark 0xff 0x7d opcode as undefined.Gleb Natapov1-1/+1
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: emulator: Do not fail on emulation of undefined opcodeGleb Natapov1-2/+3
Emulation of undefined opcode should inject #UD instead of causing emulation failure. Do that by moving Undefined flag check to emulation stage and injection #UD there. Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: VMX: do not try to reexecute failed instruction while emulating invalid ↵Gleb Natapov3-5/+11
guest state During invalid guest state emulation vcpu cannot enter guest mode to try to reexecute instruction that emulator failed to emulate, so emulation will happen again and again. Prevent that by telling the emulator that instruction reexecution should not be attempted. Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-14KVM: emulator: fix unimplemented instruction detectionGleb Natapov1-3/+4
Unimplemented instruction detection is broken for group instructions since it relies on "flags" field of opcode to be zero, but all instructions in a group inherit flags from a group encoding. Fix that by having a separate flag for unimplemented instructions. Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-11KVM: x86 emulator: Fix segment loading in VM86Kevin Wolf1-3/+12
This fixes a regression introduced in commit 03ebebeb1 ("KVM: x86 emulator: Leave segment limit and attributs alone in real mode"). The mentioned commit changed the segment descriptors for both real mode and VM86 to only update the segment base instead of creating a completely new descriptor with limit 0xffff so that unreal mode keeps working across a segment register reload. This leads to an invalid segment descriptor in the eyes of VMX, which seems to be okay for real mode because KVM will fix it up before the next VM entry or emulate the state, but it doesn't do this if the guest is in VM86, so we end up with: KVM: entry failed, hardware error 0x80000021 Fix this by effectively reverting commit 03ebebeb1 for VM86 and leaving it only in place for real mode, which is where it's really needed. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-08KVM: Move kvm_rebooting declaration out of x86Geoff Levand1-1/+0
The variable kvm_rebooting is a common kvm variable, so move its declaration from arch/x86/include/asm/kvm_host.h to include/asm/kvm_host.h. Fixes this sparse warning when building on arm64: virt/kvm/kvm_main.c:warning: symbol 'kvm_rebooting' was not declared. Should it be static? Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-08KVM: Move kvm_spurious_fault to x86.cGeoff Levand1-0/+7
The routine kvm_spurious_fault() is an x86 specific routine, so move it from virt/kvm/kvm_main.c to arch/x86/kvm/x86.c. Fixes this sparse warning when building on arm64: virt/kvm/kvm_main.c:warning: symbol 'kvm_spurious_fault' was not declared. Should it be static? Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-08KVM: Move vm_list kvm_lock declarations out of x86Geoff Levand1-3/+0
The variables vm_list and kvm_lock are common to all architectures, so move the declarations from arch/x86/include/asm/kvm_host.h to include/linux/kvm_host.h. Fixes sparse warnings like these when building for arm64: virt/kvm/kvm_main.c: warning: symbol 'kvm_lock' was not declared. Should it be static? virt/kvm/kvm_main.c: warning: symbol 'vm_list' was not declared. Should it be static? Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-08KVM: VMX: Add missing braces to avoid redundant error checkJan Kiszka1-1/+2
The code was already properly aligned, now also add the braces to avoid that err is checked even if alloc_apic_access_page didn't run and change it. Found via Coccinelle by Fengguang Wu. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-08KVM: x86: fix memory leak in vmx_initYang Zhang1-1/+3
Free vmx_msr_bitmap_longmode_x2apic and vmx_msr_bitmap_longmode if kvm_init() fails. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-07KVM: nVMX: Check exit control for VM_EXIT_SAVE_IA32_PAT, not entry controlsJan Kiszka1-1/+1
Obviously a copy&paste mistake: prepare_vmcs12 has to check L1's exit controls for VM_EXIT_SAVE_IA32_PAT. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-07KVM: Call kvm_apic_match_dest() to check destination vcpuYang Zhang2-51/+0
For a given vcpu, kvm_apic_match_dest() will tell you whether the vcpu in the destination list quickly. Drop kvm_calculate_eoi_exitmap() and use kvm_apic_match_dest() instead. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-07Revert "KVM: MMU: Move kvm_mmu_free_some_pages() into kvm_mmu_alloc_page()"Takuya Yoshikawa2-4/+8
With the following commit, shadow pages can be zapped at random during a shadow page talbe walk: KVM: MMU: Move kvm_mmu_free_some_pages() into kvm_mmu_alloc_page() 7ddca7e43c8f28f9419da81a0e7730b66aa60fe9 This patch reverts it and fixes __direct_map() and FNAME(fetch)(). Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02pmu: prepare for migration supportPaolo Bonzini3-6/+14
In order to migrate the PMU state correctly, we need to restore the values of MSR_CORE_PERF_GLOBAL_STATUS (a read-only register) and MSR_CORE_PERF_GLOBAL_OVF_CTRL (which has side effects when written). We also need to write the full 40-bit value of the performance counter, which would only be possible with a v3 architectural PMU's full-width counter MSRs. To distinguish host-initiated writes from the guest's, pass the full struct msr_data to kvm_pmu_set_msr. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: Enable KVM_CAP_NR_MEMSLOTS on s390Nick Wang1-0/+3
Return KVM_USER_MEM_SLOTS in kvm_dev_ioctl_check_extension(). Signed-off-by: Nick Wang <jfwang@us.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: Remove the sanity checks for kvm memory slotNick Wang1-12/+4
To model the standby memory with memory_region_add_subregion and friends, the guest would have one or more regions of ram. Remove the check allowing only one memory slot and the check requiring the real address of memory slot starts at zero. Signed-off-by: Nick Wang <jfwang@us.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: fix compile with !CONFIG_COMPATHeiko Carstens1-0/+1
arch/s390/kvm/priv.c should include both linux/compat.h and asm/compat.h. Fixes this one: In file included from arch/s390/kvm/priv.c:23:0: arch/s390/include/asm/compat.h: In function ‘arch_compat_alloc_user_space’: arch/s390/include/asm/compat.h:258:2: error: implicit declaration of function ‘is_compat_task’ Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: fix stsi exception handlingHeiko Carstens1-10/+10
In case of an exception the guest psw condition code should be left alone. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-By: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: fix and enforce return code handling for irq injectionsHeiko Carstens4-73/+37
kvm_s390_inject_program_int() and friends may fail if no memory is available. This must be reported to the calling functions, so that this gets passed down to user space which should fix the situation. Alternatively we end up with guest state corruption. So fix this and enforce return value checking by adding a __must_check annotation to all of these function prototypes. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: make if statements in lpsw/lpswe handlers readableHeiko Carstens1-34/+24
Being unable to parse the 5- and 8-line if statements I had to split them to be able to make any sense of them and verify that they match the architecture. So change the code since I guess that other people will also have a hard time parsing such long conditional statements with line breaks. Introduce a common is_valid_psw() function which does all the checks needed. In case of lpsw (64 bit psw -> 128 bit psw conversion) it will do some not needed additional checks, since a couple of bits can't be set anyway, but that doesn't hurt. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: fix return code handling in lpsw/lpswe handlersHeiko Carstens1-30/+14
kvm_s390_inject_program_int() may return with a non-zero return value, in case of an error (out of memory). Report that to the calling functions instead of ignoring the error case. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: fix psw conversion in lpsw handlerHeiko Carstens1-1/+2
When converting a 64 bit psw to a 128 bit psw the addressing mode bit of the "addr" part of the 64 bit psw must be moved to the basic addressing mode bit of the "mask" part of the 128 bit psw. In addition the addressing mode bit must be cleared when moved to the "addr" part of the 128 bit psw. Otherwise an invalid psw would be generated if the orginal psw was in the 31 bit addressing mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: fix 24 bit psw handling in lpsw/lpswe handlerHeiko Carstens1-1/+1
When checking for validity the lpsw/lpswe handler check that only the lower 20 bits instead of 24 bits have a non-zero value. There handling valid psws as invalid ones. Fix the 24 bit psw mask. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-04-02KVM: s390: Dont do a gmap update on minor memslot changesChristian Borntraeger1-0/+10
Some memslot updates dont affect the gmap implementation, e.g. setting/unsetting dirty tracking. Since a gmap update will cause tlb flushes and segment table invalidations we want to avoid that. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-03-24Merge 'git://github.com/agraf/linux-2.6.git kvm-ppc-next' into queueGleb Natapov10-93/+129
2013-03-22KVM: PPC: Remove unused argument to kvmppc_core_dequeue_externalPaul Mackerras4-7/+4
Currently kvmppc_core_dequeue_external() takes a struct kvm_interrupt * argument and does nothing with it, in any of its implementations. This removes it in order to make things easier for forthcoming in-kernel interrupt controller emulation code. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22kvm/ppc/e500: eliminate tlb_refsScott Wood2-69/+30
Commit 523f0e5421c12610527c620b983b443f329e3a32 ("KVM: PPC: E500: Explicitly mark shadow maps invalid") began using E500_TLB_VALID for guest TLB1 entries, and skipping invalidations if it's not set. However, when E500_TLB_VALID was set for such entries, it was on a fake local ref, and so the invalidations never happen. gtlb_privs is documented as being only for guest TLB0, though we already violate that with E500_TLB_BITMAP. Now that we have MMU notifiers, and thus don't need to actually retain a reference to the mapped pages, get rid of tlb_refs, and use gtlb_privs for E500_TLB_VALID in TLB1. Since we can have more than one host TLB entry for a given tlbe_ref, be careful not to clear existing flags that are relevant to other host TLB entries when preparing a new host TLB entry. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22kvm/ppc/e500: g2h_tlb1_map: clear old bit before setting new bitScott Wood1-3/+4
It's possible that we're using the same host TLB1 slot to map (a presumably different portion of) the same guest TLB1 entry. Clear the bit in the map before setting it, so that if the esels are the same the bit will remain set. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22kvm/ppc/e500: h2g_tlb1_rmap: esel 0 is validScott Wood1-2/+2
Add one to esel values in h2g_tlb1_rmap, so that "no mapping" can be distinguished from "esel 0". Note that we're not saved by the fact that host esel 0 is reserved for non-KVM use, because KVM host esel numbering is not the raw host numbering (see to_htlb1_esel). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22KVM: PPC: booke: Added debug handlerBharat Bhushan3-3/+41
Installed debug handler will be used for guest debug support and debug facility emulation features (patches for these features will follow this patch). Signed-off-by: Liu Yu <yu.liu@freescale.com> [bharat.bhushan@freescale.com: Substantial changes] Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22KVM: PPC: Added one_reg interface for timer registersBharat Bhushan2-0/+35
If userspace wants to change some specific bits of TSR (timer status register) then it uses GET/SET_SREGS ioctl interface. So the steps will be: i) user-space will make get ioctl, ii) change TSR in userspace iii) then make set ioctl. It can happen that TSR gets changed by kernel after step i) and before step iii). To avoid this we have added below one_reg ioctls for oring and clearing specific bits in TSR. This patch adds one registerface for: 1) setting specific bit in TSR (timer status register) 2) clearing specific bit in TSR (timer status register) 3) setting/getting the TCR register. There are cases where we want to only change TCR and not TSR. Although we can uses SREGS without KVM_SREGS_E_UPDATE_TSR flag but I think one reg is better. I am open if someone feels we should use SREGS only here. 4) getting/setting TSR register Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22KVM: PPC: move tsr update in a separate functionBharat Bhushan1-10/+14
This is done so that same function can be called from SREGS and ONE_REG interface (follow up patch). Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-21KVM: MMU: Rename kvm_mmu_free_some_pages() to make_mmu_pages_available()Takuya Yoshikawa2-8/+7
The current name "kvm_mmu_free_some_pages" should be used for something that actually frees some shadow pages, as we expect from the name, but what the function is doing is to make some, KVM_MIN_FREE_MMU_PAGES, shadow pages available: it does nothing when there are enough. This patch changes the name to reflect this meaning better; while doing this renaming, the code in the wrapper function is inlined into the main body since the whole function will be inlined into the only caller now. Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-21KVM: MMU: Move kvm_mmu_free_some_pages() into kvm_mmu_alloc_page()Takuya Yoshikawa2-7/+3
What this function is doing is to ensure that the number of shadow pages does not exceed the maximum limit stored in n_max_mmu_pages: so this is placed at every code path that can reach kvm_mmu_alloc_page(). Although it might have some sense to spread this function in each such code path when it could be called before taking mmu_lock, the rule was changed not to do so. Taking this background into account, this patch moves it into kvm_mmu_alloc_page() and simplifies the code. Note: the unlikely hint in kvm_mmu_free_some_pages() guarantees that the overhead of this function is almost zero except when we actually need to allocate some shadow pages, so we do not need to care about calling it multiple times in one path by doing kvm_mmu_get_page() a few times. Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-21Merge remote-tracking branch 'upstream/master' into queueMarcelo Tosatti189-602/+829
Merge reason: From: Alexander Graf <agraf@suse.de> "Just recently this really important patch got pulled into Linus' tree for 3.9: commit 1674400aaee5b466c595a8fc310488263ce888c7 Author: Anton Blanchard <anton <at> samba.org> Date: Tue Mar 12 01:51:51 2013 +0000 Without that commit, I can not boot my G5, thus I can't run automated tests on it against my queue. Could you please merge kvm/next against linus/master, so that I can base my trees against that?" * upstream/master: (653 commits) PCI: Use ROM images from firmware only if no other ROM source available sparc: remove unused "config BITS" sparc: delete "if !ULTRA_HAS_POPULATION_COUNT" KVM: Fix bounds checking in ioapic indirect register reads (CVE-2013-1798) KVM: x86: Convert MSR_KVM_SYSTEM_TIME to use gfn_to_hva_cache functions (CVE-2013-1797) KVM: x86: fix for buffer overflow in handling of MSR_KVM_SYSTEM_TIME (CVE-2013-1796) arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED inet: limit length of fragment queue hash table bucket lists qeth: Fix scatter-gather regression qeth: Fix invalid router settings handling qeth: delay feature trace sgy-cts1000: Remove __dev* attributes KVM: x86: fix deadlock in clock-in-progress request handling KVM: allow host header to be included even for !CONFIG_KVM hwmon: (lm75) Fix tcn75 prefix hwmon: (lm75.h) Update header inclusion MAINTAINERS: Remove Mark M. Hoffman xfs: ensure we capture IO errors correctly xfs: fix xfs_iomap_eof_prealloc_initial_size type ... Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-20KVM: x86: correctly initialize the CS base on resetPaolo Bonzini2-7/+2
The CS base was initialized to 0 on VMX (wrong, but usually overridden by userspace before starting) or 0xf0000 on SVM. The correct value is 0xffff0000, and VMX is able to emulate it now, so use it. Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-19Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-35/+33
Pull kvm fixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Fix bounds checking in ioapic indirect register reads (CVE-2013-1798) KVM: x86: Convert MSR_KVM_SYSTEM_TIME to use gfn_to_hva_cache functions (CVE-2013-1797) KVM: x86: fix for buffer overflow in handling of MSR_KVM_SYSTEM_TIME (CVE-2013-1796) KVM: x86: fix deadlock in clock-in-progress request handling KVM: allow host header to be included even for !CONFIG_KVM
2013-03-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds5-24/+57
Pull sparc fixes from David Miller: "Just some minor fixups, a sunsu console setup panic cure, and recognition of a Fujitsu sun4v cpu." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: remove unused "config BITS" sparc: delete "if !ULTRA_HAS_POPULATION_COUNT" sparc64: correctly recognize SPARC64-X chips sparc,leon: fix GRPCI2 device0 PCI config space access sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option
2013-03-19Merge tag 'arm64-fixes' of ↵Linus Torvalds6-15/+3
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 Pull arm64 fixes from Catalin Marinas: - Fix !SMP build error. - Fix padding computation in struct ucontext (no ABI change). - Minor clean-up after the signal patches (unused var). - Two old Kconfig options clean-up. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED arm64: fix padding computation in struct ucontext arm64: Fix build error with !SMP arm64: Removed unused variable in compat_setup_rt_frame()
2013-03-19sparc: remove unused "config BITS"Paul Bolle1-6/+0
sparc's asm/module.h got removed in commit 786d35d45cc40b2a51a18f73e14e135d47fdced7 ("Make most arch asm/module.h files use asm-generic/module.h"). That removed the only two uses of this Kconfig symbol. So we can remove its entry too. > >From arch/sparc/Makefile: > ifeq ($(CONFIG_SPARC32),y) > [...] > > [...] > export BITS := 32 > [...] > > else > [...] > > [...] > export BITS := 64 > [...] > > So $(BITS) is set depending on whether CONFIG_SPARC32 is set or not. > Using $(BITS) in sparc's Makefiles is not using CONFIG_BITS. That > doesn't count as usage of "config BITS". Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-1/+1
Pull networking fixes from David Miller: 1) Fix ARM BPF JIT handling of negative 'k' values, from Chen Gang. 2) Insufficient space reserved for bridge netlink values, fix from Stephen Hemminger. 3) Some dst_neigh_lookup*() callers don't interpret error pointer correctly, fix from Zhouyi Zhou. 4) Fix transport match in SCTP active_path loops, from Xugeng Zhang. 5) Fix qeth driver handling of multi-order SKB frags, from Frank Blaschka. 6) fec driver is missing napi_disable() call, resulting in crashes on unload, from Georg Hofmann. 7) Don't try to handle PMTU events on a listening socket, fix from Eric Dumazet. 8) Fix timestamp location calculations in IP option processing, from David Ward. 9) FIB_TABLE_HASHSZ setting is not controlled by the correct kconfig tests, from Denis V Lunev. 10) Fix TX descriptor push handling in SFC driver, from Ben Hutchings. 11) Fix isdn/hisax and tulip/de4x5 kconfig dependencies, from Arnd Bergmann. 12) bnx2x statistics don't handle 4GB rollover correctly, fix from Maciej Żenczykowski. 13) Openvswitch bug fixes for vport del/new error reporting, missing genlmsg_end() call in netlink processing, and mis-parsing of LLC/SNAP ethernet types. From Rich Lane. 14) SKB pfmemalloc state should only be propagated from the head page of a compound page, fix from Pavel Emelyanov. 15) Fix link handling in tg3 driver for 5715 chips when autonegotation is disabled. From Nithin Sujir. 16) Fix inverted test of cpdma_check_free_tx_desc return value in davinci_emac driver, from Mugunthan V N. 17) vlan_depth is incorrectly calculated in skb_network_protocol(), from Li RongQing. 18) Fix probing of Gobi 1K devices in qmi_wwan driver, and fix NCM device mode backwards compat in cdc_ncm driver. From Bjørn Mork. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits) inet: limit length of fragment queue hash table bucket lists qeth: Fix scatter-gather regression qeth: Fix invalid router settings handling qeth: delay feature trace tcp: dont handle MTU reduction on LISTEN socket bnx2x: fix occasional statistics off-by-4GB error vhost/net: fix heads usage of ubuf_info bridge: Add support for setting BR_ROOT_BLOCK flag. bnx2x: add missing napi deletion in error path drivers: net: ethernet: ti: davinci_emac: fix usage of cpdma_check_free_tx_desc() ethernet/tulip: DE4x5 needs VIRT_TO_BUS isdn: hisax: netjet requires VIRT_TO_BUS net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwards compatibility rtnetlink: Mask the rta_type when range checking Revert "ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally" Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug smsc75xx: configuration help incorrectly mentions smsc95xx net: fec: fix missing napi_disable call net: fec: restart the FEC when PHY speed changes skb: Propagate pfmemalloc on skb from head page only ...
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