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linux-stable/arch/x86/kvm
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Thomas Gleixner ea4d6938d4 x86/fpu: Replace KVMs home brewed FPU copy from user 
Copying a user space buffer to the memory buffer is already available in
the FPU core. The copy mechanism in KVM lacks sanity checks and needs to
use cpuid() to lookup the offset of each component, while the FPU core has
this information cached.

Make the FPU core variant accessible for KVM and replace the home brewed
mechanism.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: kvm@vger.kernel.org
Link: https://lkml.kernel.org/r/20211015011539.134065207@linutronix.de
2021-10-20 15:27:27 +02:00
..
mmu KVM: X86: Synchronize the shadow pagetable before link it 2021-09-23 11:01:00 -04:00
svm KVM: x86: nSVM: don't copy virt_ext from vmcb12 2021-09-23 10:06:46 -04:00
vmx KVM: VMX: Fix a TSX_CTRL_CPUID_CLEAR field mask issue 2021-09-27 11:25:40 -04:00
cpuid.c KVM: x86: Swap order of CPUID entry "index" vs. "significant flag" checks 2021-09-30 04:20:33 -04:00
cpuid.h KVM: x86: Move reverse CPUID helpers to separate header file 2021-04-26 05:27:13 -04:00
debugfs.c KVM: X86: Introduce mmu_rmaps_stat per-vm debugfs file 2021-08-20 16:06:11 -04:00
emulate.c kvm: fix objtool relocation warning 2021-10-03 13:34:19 -07:00
fpu.h KVM: x86: Move FPU register accessors into fpu.h 2021-06-17 13:09:24 -04:00
hyperv.c KVM: x86: Query vcpu->vcpu_idx directly and drop its accessor 2021-09-22 10:33:11 -04:00
hyperv.h KVM: x86: Query vcpu->vcpu_idx directly and drop its accessor 2021-09-22 10:33:11 -04:00
i8254.c KVM: x86: Migrate the PIT only if vcpu0 is migrated, not any BSP 2021-08-02 11:01:51 -04:00
i8254.h
i8259.c x86: Fix typo s/ECLR/ELCR/ for the PIC register 2021-08-10 23:31:44 +02:00
ioapic.c KVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect() 2021-09-22 10:33:14 -04:00
ioapic.h x86/kvm: remove non-x86 stuff from arch/x86/kvm/ioapic.h 2021-08-02 11:01:46 -04:00
irq.c KVM: x86/xen: Add event channel interrupt vector upcall 2021-02-04 14:19:39 +00:00
irq.h x86: Fix typo s/ECLR/ELCR/ for the PIC register 2021-08-10 23:31:44 +02:00
irq_comm.c x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
Kconfig ARM: 2021-06-28 15:40:51 -07:00
kvm_cache_regs.h KVM: x86: Introduce KVM_GET_SREGS2 / KVM_SET_SREGS2 2021-06-17 13:09:47 -04:00
kvm_emulate.h KVM: x86: Drop "pre_" from enter/leave_smm() helpers 2021-06-17 13:09:35 -04:00
kvm_onhyperv.c KVM: x86: hyper-v: Move the remote TLB flush logic out of vmx 2021-06-17 13:09:36 -04:00
kvm_onhyperv.h KVM: x86: hyper-v: Move the remote TLB flush logic out of vmx 2021-06-17 13:09:36 -04:00
lapic.c KVM: x86: Consolidate APIC base RESET initialization code 2021-08-02 11:01:52 -04:00
lapic.h KVM: x86: Add a return code to kvm_apic_accept_events 2021-06-17 13:09:31 -04:00
Makefile KVM: stats: Add fd-based API to read binary stats data 2021-06-24 11:47:57 -04:00
mmu.h KVM: x86/mmu: Add detailed page size stats 2021-08-20 16:06:34 -04:00
mtrr.c KVM: x86: Add helper to consolidate "raw" reserved GPA mask calculations 2021-02-04 09:27:30 -05:00
pmu.c KVM: x86/pmu: Introduce pmc->is_paused to reduce the call time of perf interfaces 2021-08-04 05:55:56 -04:00
pmu.h KVM: x86/pmu: Introduce pmc->is_paused to reduce the call time of perf interfaces 2021-08-04 05:55:56 -04:00
reverse_cpuid.h KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features 2021-04-26 05:27:15 -04:00
trace.h KVM: x86: Introduce trace_kvm_hv_hypercall_done() 2021-08-03 06:16:40 -04:00
tss.h
x86.c x86/fpu: Replace KVMs home brewed FPU copy from user 2021-10-20 15:27:27 +02:00
x86.h KVM: x86: Move declaration of kvm_spurious_fault() to x86.h 2021-08-13 03:35:16 -04:00
xen.c KVM: xen: do not use struct gfn_to_hva_cache 2021-08-05 03:31:40 -04:00
xen.h KVM: xen: do not use struct gfn_to_hva_cache 2021-08-05 03:31:40 -04:00