linux/arch/x86
Paolo Bonzini f292dc8aad KVM x86 misc changes for 6.7:
- Add CONFIG_KVM_MAX_NR_VCPUS to allow supporting up to 4096 vCPUs without
    forcing more common use cases to eat the extra memory overhead.
 
  - Add IBPB and SBPB virtualization support.
 
  - Fix a bug where restoring a vCPU snapshot that was taken within 1 second of
    creating the original vCPU would cause KVM to try to synchronize the vCPU's
    TSC and thus clobber the correct TSC being set by userspace.
 
  - Compute guest wall clock using a single TSC read to avoid generating an
    inaccurate time, e.g. if the vCPU is preempted between multiple TSC reads.
 
  - "Virtualize" HWCR.TscFreqSel to make Linux guests happy, which complain
     about a "Firmware Bug" if the bit isn't set for select F/M/S combos.
 
  - Don't apply side effects to Hyper-V's synthetic timer on writes from
    userspace to fix an issue where the auto-enable behavior can trigger
    spurious interrupts, i.e. do auto-enabling only for guest writes.
 
  - Remove an unnecessary kick of all vCPUs when synchronizing the dirty log
    without PML enabled.
 
  - Advertise "support" for non-serializing FS/GS base MSR writes as appropriate.
 
  - Use octal notation for file permissions through KVM x86.
 
  - Fix a handful of typo fixes and warts.
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Merge tag 'kvm-x86-misc-6.7' of https://github.com/kvm-x86/linux into HEAD

KVM x86 misc changes for 6.7:

 - Add CONFIG_KVM_MAX_NR_VCPUS to allow supporting up to 4096 vCPUs without
   forcing more common use cases to eat the extra memory overhead.

 - Add IBPB and SBPB virtualization support.

 - Fix a bug where restoring a vCPU snapshot that was taken within 1 second of
   creating the original vCPU would cause KVM to try to synchronize the vCPU's
   TSC and thus clobber the correct TSC being set by userspace.

 - Compute guest wall clock using a single TSC read to avoid generating an
   inaccurate time, e.g. if the vCPU is preempted between multiple TSC reads.

 - "Virtualize" HWCR.TscFreqSel to make Linux guests happy, which complain
    about a "Firmware Bug" if the bit isn't set for select F/M/S combos.

 - Don't apply side effects to Hyper-V's synthetic timer on writes from
   userspace to fix an issue where the auto-enable behavior can trigger
   spurious interrupts, i.e. do auto-enabling only for guest writes.

 - Remove an unnecessary kick of all vCPUs when synchronizing the dirty log
   without PML enabled.

 - Advertise "support" for non-serializing FS/GS base MSR writes as appropriate.

 - Use octal notation for file permissions through KVM x86.

 - Fix a handful of typo fixes and warts.
2023-10-31 10:15:15 -04:00
..
boot x86/sev: Check for user-space IOIO pointing to kernel space 2023-10-17 10:58:16 +02:00
coco - Some SEV and CC platform helpers cleanup and simplifications now that 2023-06-27 13:26:30 -07:00
configs - The first, cleanup part of the microcode loader reorg tglx has been 2023-08-28 15:55:20 -07:00
crypto crypto: x86/aesni - remove unused parameter to aes_set_key_common() 2023-07-22 13:59:39 +12:00
entry xen: simplify evtchn_do_upcall() call maze 2023-09-19 07:04:49 +02:00
events perf/x86/lbr: Filter vsyscall addresses 2023-10-08 12:25:18 +02:00
hyperv x86/hyperv: Add common print prefix "Hyper-V" in hv_init 2023-09-22 18:43:09 +00:00
ia32
include KVM x86 misc changes for 6.7: 2023-10-31 10:15:15 -04:00
kernel Misc fixes: 2023-10-28 08:15:07 -10:00
kvm KVM x86 misc changes for 6.7: 2023-10-31 10:15:15 -04:00
lib x86/asm: Fix build of UML with KASAN 2023-09-18 19:30:08 +02:00
math-emu x86/fpu: Include asm/fpu/regset.h 2023-05-18 11:56:18 -07:00
mm Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
net bpf: Support new 32bit offset jmp instruction 2023-07-27 18:52:33 -07:00
pci pci-v6.6-changes 2023-08-30 20:23:07 -07:00
platform efi/x86: Move EFI runtime call setup/teardown helpers out of line 2023-09-11 06:37:50 +00:00
power x86/topology: Remove CPU0 hotplug option 2023-05-15 13:44:49 +02:00
purgatory x86/purgatory: Remove LTO flags 2023-09-17 09:49:03 +02:00
ras
realmode x86/realmode: Make stack lock work in trampoline_compat() 2023-05-30 14:11:47 +02:00
tools ELF: fix all "Elf" typos 2023-04-08 13:45:37 -07:00
um um: Hard-code the result of 'uname -s' 2023-08-26 22:40:37 +02:00
video Merge drm/drm-next into drm-misc-next 2023-07-24 15:44:47 +02:00
virt/vmx/tdx
xen xen/efi: refactor deprecated strncpy 2023-09-19 07:04:49 +02:00
.gitignore
Kbuild
Kconfig efi/x86: Ensure that EFI_RUNTIME_MAP is enabled for kexec 2023-09-11 06:37:50 +00:00
Kconfig.assembler x86/shstk: Add Kconfig option for shadow stack 2023-07-11 14:12:18 -07:00
Kconfig.cpu x86/cpu: Remove X86_FEATURE_NAMES 2023-05-15 20:03:08 +02:00
Kconfig.debug docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
Makefile Kbuild updates for v6.6 2023-09-05 11:01:47 -07:00
Makefile_32.cpu
Makefile.postlink x86/build: Avoid relocation information in final vmlinux 2023-06-14 19:54:40 +02:00
Makefile.um um: Only disable SSE on clang to work around old GCC bugs 2023-04-04 09:57:05 +02:00