linux/arch
Linus Torvalds 74eedeba45 A set of perf fixes:
- Correct the permission checks for perf event which send SIGTRAP to a
    different process and clean up that code to be more readable.
 
  - Prevent an out of bound MSR access in the x86 perf code which happened
    due to an incomplete limiting to the actually available hardware
    counters.
 
  - Prevent access to the AMD64_EVENTSEL_HOSTONLY bit when running inside a
    guest.
 
  - Handle small core counter re-enabling correctly by issuing an ACK right
    before reenabling it to prevent a stale PEBS record being kept around.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmEPv6UTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYob8hD/wMmRLAoc/uvJIIICJ+IQVnnU8WToIS
 Qy1dAPpQMz6pQpRQor1AGpcP89IMnLVhZn84lsd+kw0/Lv630JbWsXvQ8jB2GPHn
 17XewPp4l4PDUgKaGEKIjPSjsmnZmzOLTYIy5gWOfA/h5EG/1D+ozvcRGDMaXWUw
 +65Pinaf2QKfjYZV11SVJMLF5zLYUxMc6vRag00WrcPxd+JO4eVeV36g0LTmhABW
 fOSDcBOSVrT2w9MYDpNmPvMh3dN2vlfhrEk10NBKslx8uk4t8sV/Jbs+48WhydKa
 zmdqthtjIekRUSxhiHJve70D9ngveCBSKQDp0Us2BWWxdnM0+HV6ozjuxO0julCH
 5tW4413fz2AoZJhWkTn3PE4nPG3apRCnL2B+jTFHHqCjKSkkrNDRJDOEUwasXjV5
 jn25DLhOq5ltkMrLFDTV/h2RZqU0fAMV2iwNSkjD3lVLgKt6B3/uSnvE9SXmaJjs
 njk/1LzeWwY+sk7YYXouPQ2STEDCKvOJGYZSS5pFA03mVaQgfuJxpyHKH+7nj9tV
 k0FLDLMmSucYIWBq0iapa8cR69e0ZIE48hSNR3AOIIOVh3LusmA4HkogOAQG7kdZ
 P2nKQUdN+SR8rL9KQRauP63J508fg0kkXNgSAm1lFWBDnFKt6shkkHGcL+5PzxJW
 1Bjx2wc52Ww84A==
 =hhv+
 -----END PGP SIGNATURE-----

Merge tag 'perf-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "A set of perf fixes:

   - Correct the permission checks for perf event which send SIGTRAP to
     a different process and clean up that code to be more readable.

   - Prevent an out of bound MSR access in the x86 perf code which
     happened due to an incomplete limiting to the actually available
     hardware counters.

   - Prevent access to the AMD64_EVENTSEL_HOSTONLY bit when running
     inside a guest.

   - Handle small core counter re-enabling correctly by issuing an ACK
     right before reenabling it to prevent a stale PEBS record being
     kept around"

* tag 'perf-urgent-2021-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Apply mid ACK for small core
  perf/x86/amd: Don't touch the AMD64_EVENTSEL_HOSTONLY bit inside the guest
  perf/x86: Fix out of bound MSR access
  perf: Refactor permissions check into perf_check_permission()
  perf: Fix required permissions if sigtrap is requested
2021-08-08 11:46:13 -07:00
..
alpha libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
arc Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
arm Fixes for omaps for v5.14-rc series 2021-08-03 17:05:36 +02:00
arm64 ARM: SoC fixes for v5.14, part 2 2021-08-06 11:41:12 -07:00
csky Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
h8300 libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
hexagon Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
ia64 libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
m68k libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
microblaze Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
mips TTY/Serial fixes for 5.14-rc5 2021-08-08 10:23:13 -07:00
nds32 nds32: fix up stack guard gap 2021-07-21 15:51:37 +02:00
nios2 Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
openrisc Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
parisc libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
powerpc powerpc fixes for 5.14 #4 2021-08-01 12:18:44 -07:00
riscv RISC-V Fixes for 5.14-rc5 2021-08-07 10:15:04 -07:00
s390 s390 updates for 5.14-rc5 2021-08-05 11:46:24 -07:00
sh libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
sparc Networking fixes for 5.14-rc4, including fixes from bpf, can, WiFi (mac80211) 2021-07-30 16:01:36 -07:00
um Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
x86 A set of perf fixes: 2021-08-08 11:46:13 -07:00
xtensa libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
.gitignore
Kconfig Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR 2021-06-22 11:07:18 -07:00