linux/arch/x86/kvm
Paolo Bonzini c9cd0beae9 KVM x86 misc changes for 6.9:
- Explicitly initialize a variety of on-stack variables in the emulator that
    triggered KMSAN false positives (though in fairness in KMSAN, it's comically
    difficult to see that the uninitialized memory is never truly consumed).
 
  - Fix the deubgregs ABI for 32-bit KVM, and clean up code related to reading
    DR6 and DR7.
 
  - Rework the "force immediate exit" code so that vendor code ultimately
    decides how and when to force the exit.  This allows VMX to further optimize
    handling preemption timer exits, and allows SVM to avoid sending a duplicate
    IPI (SVM also has a need to force an exit).
 
  - Fix a long-standing bug where kvm_has_noapic_vcpu could be left elevated if
    vCPU creation ultimately failed, and add WARN to guard against similar bugs.
 
  - Provide a dedicated arch hook for checking if a different vCPU was in-kernel
    (for directed yield), and simplify the logic for checking if the currently
    loaded vCPU is in-kernel.
 
  - Misc cleanups and fixes.
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Merge tag 'kvm-x86-misc-6.9' of https://github.com/kvm-x86/linux into HEAD

KVM x86 misc changes for 6.9:

 - Explicitly initialize a variety of on-stack variables in the emulator that
   triggered KMSAN false positives (though in fairness in KMSAN, it's comically
   difficult to see that the uninitialized memory is never truly consumed).

 - Fix the deubgregs ABI for 32-bit KVM, and clean up code related to reading
   DR6 and DR7.

 - Rework the "force immediate exit" code so that vendor code ultimately
   decides how and when to force the exit.  This allows VMX to further optimize
   handling preemption timer exits, and allows SVM to avoid sending a duplicate
   IPI (SVM also has a need to force an exit).

 - Fix a long-standing bug where kvm_has_noapic_vcpu could be left elevated if
   vCPU creation ultimately failed, and add WARN to guard against similar bugs.

 - Provide a dedicated arch hook for checking if a different vCPU was in-kernel
   (for directed yield), and simplify the logic for checking if the currently
   loaded vCPU is in-kernel.

 - Misc cleanups and fixes.
2024-03-11 10:24:56 -04:00
..
mmu Generic: 2024-01-17 13:03:37 -08:00
svm KVM x86 misc changes for 6.9: 2024-03-11 10:24:56 -04:00
vmx KVM x86 misc changes for 6.9: 2024-03-11 10:24:56 -04:00
.gitignore KVM: x86: use a separate asm-offsets.c file 2022-11-09 12:10:17 -05:00
cpuid.c Generic: 2024-01-17 13:03:37 -08:00
cpuid.h KVM: x86: Use KVM-governed feature framework to track "LAM enabled" 2023-11-28 17:54:09 -08:00
debugfs.c KVM: Get rid of return value from kvm_arch_create_vm_debugfs() 2024-02-23 21:44:58 +00:00
emulate.c KVM: x86: Make kvm_get_dr() return a value, not use an out parameter 2024-02-22 16:14:47 -08:00
fpu.h
governed_features.h KVM: x86: Use KVM-governed feature framework to track "LAM enabled" 2023-11-28 17:54:09 -08:00
hyperv.c KVM: x86: Give a hint when Win2016 might fail to boot due to XSAVES erratum 2024-01-31 16:21:00 -05:00
hyperv.h KVM: x86: Give a hint when Win2016 might fail to boot due to XSAVES erratum 2024-01-31 16:21:00 -05:00
i8254.c KVM: x86: Unify pr_fmt to use module name for all KVM modules 2022-12-29 15:47:35 -05:00
i8254.h KVM: x86: PIT: Preserve state of speaker port data bit 2022-06-08 13:06:20 -04:00
i8259.c KVM: x86: Fix poll command 2023-06-01 13:44:13 -07:00
ioapic.c KVM: x86/ioapic: Resample the pending state of an IRQ when unmasking 2023-03-27 10:13:28 -04:00
ioapic.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq_comm.c KVM: x86: Make Hyper-V emulation optional 2023-12-07 09:34:57 -08:00
irq.c KVM: x86/xen: Remove unneeded xen context from kvm_arch when !CONFIG_KVM_XEN 2023-12-07 09:33:42 -08:00
irq.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
Kconfig KVM GUEST_MEMFD fixes for 6.8: 2024-03-09 11:48:35 -05:00
kvm_cache_regs.h KVM: x86: Add helpers to query individual CR0/CR4 bits 2023-03-22 10:10:53 -07:00
kvm_emulate.h KVM: x86: Make kvm_get_dr() return a value, not use an out parameter 2024-02-22 16:14:47 -08:00
kvm_onhyperv.c KVM: x86/mmu: Move filling of Hyper-V's TLB range struct into Hyper-V code 2023-04-10 15:17:29 -07:00
kvm_onhyperv.h KVM: x86: Move Hyper-V partition assist page out of Hyper-V emulation context 2023-12-07 09:34:01 -08:00
kvm-asm-offsets.c KVM: SVM: move MSR_IA32_SPEC_CTRL save/restore to assembly 2022-11-09 12:25:53 -05:00
lapic.c KVM: x86: Move "KVM no-APIC vCPU" key management into local APIC code 2024-02-22 16:24:09 -08:00
lapic.h KVM: x86: Split out logic to generate "readable" APIC regs mask to helper 2023-01-24 10:04:35 -08:00
Makefile KVM: x86: Make Hyper-V emulation optional 2023-12-07 09:34:57 -08:00
mmu.h KVM: x86: Use KVM-governed feature framework to track "LAM enabled" 2023-11-28 17:54:09 -08:00
mtrr.c KVM: x86/mmu: Zap SPTEs on MTRR update iff guest MTRRs are honored 2023-10-09 14:35:14 -07:00
pmu.c KVM: x86/pmu: Track emulated counter events instead of previous counter 2023-11-30 12:52:55 -08:00
pmu.h KVM: x86/pmu: Track emulated counter events instead of previous counter 2023-11-30 12:52:55 -08:00
reverse_cpuid.h KVM: x86: Use a switch statement and macros in __feature_translate() 2023-11-30 12:27:02 -08:00
smm.c KVM: x86: Open code all direct reads to guest DR6 and DR7 2024-02-22 16:14:47 -08:00
smm.h KVM: x86: smm: preserve interrupt shadow in SMRAM 2022-11-09 12:31:26 -05:00
trace.h KVM: x86: Plumb "force_immediate_exit" into kvm_entry() tracepoint 2024-02-22 16:22:36 -08:00
tss.h
x86.c KVM x86 misc changes for 6.9: 2024-03-11 10:24:56 -04:00
x86.h KVM: x86: Virtualize LAM for supervisor pointer 2023-11-28 17:54:07 -08:00
xen.c Generic: 2024-01-17 13:03:37 -08:00
xen.h KVM: x86/xen: update Xen CPUID Leaf 4 (tsc info) sub-leaves, if present 2023-01-24 10:05:20 -08:00