linux.git/tools/arch/x86/include/asm, branch v5.14

tools headers cpufeatures: Sync with the kernel sources

2021-07-01T19:14:37+00:00

To pick the changes from:

  1348924ba8169f35 ("x86/msr: Define new bits in TSX_FORCE_ABORT MSR")
  cbcddaa33d7e11a0 ("perf/x86/rapl: Use CPUID bit on AMD and Hygon parts")

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Cc: Andrew Cooper 
Cc: Borislav Petkov 
Cc: Pawan Gupta 
Signed-off-by: Arnaldo Carvalho de Melo

tools arch x86: Sync the msr-index.h copy with the kernel sources

2021-07-01T19:14:36+00:00

To pick up the changes from these csets:

  1348924ba8169f35 ("x86/msr: Define new bits in TSX_FORCE_ABORT MSR")

That cause no changes to tooling:

  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
  $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
  $ diff -u before after
  $

Just silences this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
  diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h

Cc: Borislav Petkov 
Cc: Pawan Gupta 
Signed-off-by: Arnaldo Carvalho de Melo

Merge tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-06-29T19:36:59+00:00

Pull x86 interrupt related updates from Thomas Gleixner:

 - Consolidate the VECTOR defines and the usage sites.

 - Cleanup GDT/IDT related code and replace open coded ASM with proper
   native helper functions.

* tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c
  x86: Add native_[ig]dt_invalidate()
  x86/idt: Remove address argument from idt_invalidate()
  x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS
  x86/irq: Remove unused vectors defines

Merge tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-06-28T19:57:11+00:00

Pull x86 asm updates from Ingo Molnar:

 - Micro-optimize and standardize the do_syscall_64() calling convention

 - Make syscall entry flags clearing more conservative

 - Clean up syscall table handling

 - Clean up & standardize assembly macros, in preparation of FRED

 - Misc cleanups and fixes

* tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm: Make  valid on cross-builds as well
  x86/regs: Syscall_get_nr() returns -1 for a non-system call
  x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros
  x86/syscall: Maximize MSR_SYSCALL_MASK
  x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[]
  x86/entry: Reverse arguments to do_syscall_64()
  x86/entry: Unify definitions from  and 
  x86/asm: Use _ASM_BYTES() in 
  x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence
  x86/asm: Have the __ASM_FORM macros handle commas in arguments

tools headers cpufeatures: Sync with the kernel sources

2021-06-11T15:54:24+00:00

To pick the changes in:

  fb35d30fe5b06cc2 ("x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX]")
  e7b6385b01d8e9fb ("x86/cpufeatures: Add Intel SGX hardware bits")
  1478b99a76534b6c ("x86/cpufeatures: Mark ENQCMD as disabled when configured out")

That don't cause any change in the tools, just silences this perf build
warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
  diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h

Cc: Borislav Petkov 
Cc: Fenghua Yu 
Cc: Sean Christopherson 
Signed-off-by: Arnaldo Carvalho de Melo

x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS

2021-05-21T10:36:44+00:00

Add defines for the number of external vectors and number of system
vectors instead of requiring the use of (FIRST_SYSTEM_VECTOR -
FIRST_EXTERNAL_VECTOR) and (NR_VECTORS - FIRST_SYSTEM_VECTOR)
respectively. Clean up the usage sites.

Signed-off-by: H. Peter Anvin (Intel) 
Signed-off-by: Thomas Gleixner 
Acked-by: Andy Lutomirski 
Link: https://lore.kernel.org/r/20210519212154.511983-3-hpa@zytor.com

x86/irq: Remove unused vectors defines

2021-05-21T10:36:44+00:00

UV_BAU_MESSAGE is defined but not used anywhere in the kernel. Presumably
this is a stale vector number that can be reclaimed.

MCE_VECTOR is not an actual vector: #MC is an exception, not an interrupt
vector, and as such is correctly described as X86_TRAP_MC. MCE_VECTOR is
not used anywhere is the kernel.

Note that NMI_VECTOR *is* used; specifically it is the vector number
programmed into the APIC LVT when an NMI interrupt is configured. At
the moment it is always numerically identical to X86_TRAP_NMI, that is
not necessarily going to be the case indefinitely.

Signed-off-by: H. Peter Anvin (Intel) 
Signed-off-by: Thomas Gleixner 
Acked-by: Steve Wahl 
Link: https://lore.kernel.org/r/20210519212154.511983-4-hpa@zytor.com

Merge tag 'x86_urgent_for_v5.13_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-05-16T16:31:06+00:00

Pull x86 fixes from Borislav Petkov:
 "The three SEV commits are not really urgent material. But we figured
  since getting them in now will avoid a huge amount of conflicts
  between future SEV changes touching tip, the kvm and probably other
  trees, sending them to you now would be best.

  The idea is that the tip, kvm etc branches for 5.14 will all base
  ontop of -rc2 and thus everything will be peachy. What is more, those
  changes are purely mechanical and defines movement so they should be
  fine to go now (famous last words).

  Summary:

   - Enable -Wundef for the compressed kernel build stage

   - Reorganize SEV code to streamline and simplify future development"

* tag 'x86_urgent_for_v5.13_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/compressed: Enable -Wundef
  x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG
  x86/sev: Move GHCB MSR protocol and NAE definitions in a common header
  x86/sev-es: Rename sev-es.{ch} to sev.{ch}

x86/asm: Make valid on cross-builds as well

2021-05-14T06:50:28+00:00

Stephen Rothwell reported that the objtool cross-build breaks on
non-x86 hosts:

  > tools/arch/x86/include/asm/asm.h:185:24: error: invalid register name for 'current_stack_pointer'
  >   185 | register unsigned long current_stack_pointer asm(_ASM_SP);
  >       |                        ^~~~~~~~~~~~~~~~~~~~~

The PowerPC host obviously doesn't know much about x86 register names.

Protect the kernel-specific bits of , so that it can be
included by tooling and cross-built.

Reported-by: Stephen Rothwell 
Reviewed-by: H. Peter Anvin 
Signed-off-by: Ingo Molnar

tools headers cpufeatures: Sync with the kernel sources

2021-05-10T12:01:00+00:00

To pick the changes from:

  4e6292114c741221 ("x86/paravirt: Add new features for paravirt patching")
  a161545ab53b174c ("x86/cpufeatures: Enumerate Intel Hybrid Technology feature bit")
  a89dfde3dc3c2dbf ("x86: Remove dynamic NOP selection")
  b8921dccf3b25798 ("x86/cpufeatures: Add SGX1 and SGX2 sub-features")
  f21d4d3b97a86035 ("x86/cpufeatures: Enumerate #DB for bus lock detection")
  f333374e108e7e4c ("x86/cpufeatures: Add the Virtual SPEC_CTRL feature")

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Cc: Babu Moger 
Cc: Borislav Petkov 
Cc: Fenghua Yu 
Cc: Juergen Gross 
Cc: Paolo Bonzini 
Cc: Peter Zijlstra 
Cc: Ricardo Neri 
Cc: Sean Christopherson 
Cc: Thomas Gleixner 
Signed-off-by: Arnaldo Carvalho de Melo