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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-22 11:40:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-22 11:40:52 -0700 |
| commit | 37a535edd72cacf73b456d4e9272ff2ee4bf7405 (patch) | |
| tree | 0d856238eea6293d4cb2d3a00dd17736a2f3c506 /arch/x86/kernel/acpi/boot.c | |
| parent | c1e9dae0a9bf3394818abafaf376a34248c5f638 (diff) | |
| parent | 05189820da23fc87ee2a7d87c20257f298af27f4 (diff) | |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of fixes for x86:
- Prevent X2APIC ID 0xFFFFFFFF from being treated as valid, which
causes the possible CPU count to be wrong.
- Prevent 32bit truncation in calc_hpet_ref() which causes the TSC
calibration to fail
- Fix the page table setup for temporary text mappings in the resume
code which causes resume failures
- Make the page table dump code handle HIGHPTE correctly instead of
oopsing
- Support for topologies where NUMA nodes share an LLC to prevent a
invalid topology warning and further malfunction on such systems.
- Remove the now unused pci-nommu code
- Remove stale function declarations"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/power/64: Fix page-table setup for temporary text mapping
x86/mm: Prevent kernel Oops in PTDUMP code with HIGHPTE=y
x86,sched: Allow topologies where NUMA nodes share an LLC
x86/processor: Remove two unused function declarations
x86/acpi: Prevent X2APIC id 0xffffffff from being accounted
x86/tsc: Prevent 32bit truncation in calc_hpet_ref()
x86: Remove pci-nommu.c
Diffstat (limited to 'arch/x86/kernel/acpi/boot.c')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index dde444f932c1..3b20607d581b 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -215,6 +215,10 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) apic_id = processor->local_apic_id; enabled = processor->lapic_flags & ACPI_MADT_ENABLED; + /* Ignore invalid ID */ + if (apic_id == 0xffffffff) + return 0; + /* * We need to register disabled CPU as well to permit * counting disabled CPUs. This allows us to size |