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| author | Yongqin Liu <yongqin.liu@linaro.org> | 2020-04-28 00:49:45 +0800 |
|---|---|---|
| committer | YongQin Liu <yongqin.liu@linaro.org> | 2020-04-28 03:23:39 +0000 |
| commit | 9d52ec64ef44b20151bc9a8b57db4982b6969723 (patch) | |
| tree | d4586d2eeb7fa6d8418c097188628501844e1769 /arch/x86/kernel/cpu/mcheck/mce_intel.c | |
| parent | eca3a1de761510076ef78a8921345ad166609c31 (diff) | |
| parent | fdd560ec460793a02cf226cc4f2aac6d0e637e5c (diff) | |
Merge branch 'mirror-android-4.14-stable' into android-hikey-linaro-4.14
* mirror-android-4.14-stable: (1307 commits)
ANDROID: Incremental fs: Use simple compression in log buffer
ANDROID: dm-bow: Fix not to skip trim at framented range
ANDROID: Remove VLA from uid_sys_stats.c
ANDROID: cuttlefish_defconfig: enable CONFIG_DEBUG_LIST
Linux 4.14.177
KEYS: Don't write out to userspace while holding key semaphore
KEYS: Use individual pages in big_key for crypto buffers
mtd: phram: fix a double free issue in error path
mtd: lpddr: Fix a double free in probe()
locktorture: Print ratio of acquisitions, not failures
tty: evh_bytechan: Fix out of bounds accesses
fbdev: potential information leak in do_fb_ioctl()
net: dsa: bcm_sf2: Fix overflow checks
iommu/amd: Fix the configuration of GCR3 table root pointer
libnvdimm: Out of bounds read in __nd_ioctl()
ext2: fix debug reference to ext2_xattr_cache
ext2: fix empty body warnings when -Wextra is used
iommu/vt-d: Fix mm reference leak
NFS: Fix memory leaks in nfs_pageio_stop_mirroring()
drm/amdkfd: kfree the wrong pointer
...
Test: boot tested with hikey/hikey960 aosp-master-throttled-copped@6345223
Change-Id: Idba6936f4948affaed68cbcf99b9598a038567a2
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/mce_intel.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce_intel.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c index d05be307d081..1d87b85150db 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_intel.c +++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c @@ -489,17 +489,18 @@ static void intel_ppin_init(struct cpuinfo_x86 *c) return; if ((val & 3UL) == 1UL) { - /* PPIN available but disabled: */ + /* PPIN locked in disabled mode */ return; } - /* If PPIN is disabled, but not locked, try to enable: */ - if (!(val & 3UL)) { + /* If PPIN is disabled, try to enable */ + if (!(val & 2UL)) { wrmsrl_safe(MSR_PPIN_CTL, val | 2UL); rdmsrl_safe(MSR_PPIN_CTL, &val); } - if ((val & 3UL) == 2UL) + /* Is the enable bit set? */ + if (val & 2UL) set_cpu_cap(c, X86_FEATURE_INTEL_PPIN); } } |