linux/arch/x86
Nicolai Stange 9aee5f8a7e x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
An upcoming patch will extend KVM's L1TF mitigation in conditional mode
to also cover interrupts after VMEXITs. For tracking those, stores to a
new per-cpu flag from interrupt handlers will become necessary.

In order to improve cache locality, this new flag will be added to x86's
irq_cpustat_t.

Make some space available there by shrinking the ->softirq_pending bitfield
from 32 to 16 bits: the number of bits actually used is only NR_SOFTIRQS,
i.e. 10.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-05 09:53:12 +02:00
..
boot Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-10 09:44:53 -07:00
configs x86/unwind: Rename unwinder config options to 'CONFIG_UNWINDER_*' 2017-10-14 10:12:12 +02:00
crypto crypto: x86/salsa20 - remove x86 salsa20 implementations 2018-05-31 00:13:57 +08:00
entry docs: Fix some broken references 2018-06-15 18:10:01 -03:00
events treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
hyperv x86/hyper-v: move struct hv_flush_pcpu{,ex} definitions to common header 2018-05-26 14:14:33 +02:00
ia32 syscalls/x86: auto-create compat_sys_*() prototypes 2018-04-02 20:16:18 +02:00
include x86/irq: Demote irq_cpustat_t::__softirq_pending to u16 2018-08-05 09:53:12 +02:00
kernel x86/bugs, kvm: Introduce boot-time control of L1TF mitigations 2018-07-13 16:29:56 +02:00
kvm x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush() 2018-08-05 09:53:11 +02:00
lib libnvdimm for 4.18 2018-06-08 17:21:52 -07:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm x86/speculation/l1tf: Protect PAE swap entries against L1TF 2018-06-27 11:10:22 +02:00
net treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
oprofile x86/oprofile: Fix bogus GCC-8 warning in nmi_setup() 2018-02-21 09:54:17 +01:00
pci treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
platform treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
power x86/mm: Stop pretending pgtable_l5_enabled is a variable 2018-05-19 11:56:57 +02:00
purgatory kernel/kexec_file.c: move purgatories sha256 to common code 2018-04-13 17:10:28 -07:00
ras License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
realmode x86-64/realmode: Add instruction suffix 2018-02-20 09:33:41 +01:00
tools x86: Treat R_X86_64_PLT32 as R_X86_64_PC32 2018-02-22 09:01:10 -08:00
um Kconfig updates for v4.18 2018-06-06 11:31:45 -07:00
video
xen xen: fixes and features for v4-18-rc1 2018-06-08 09:24:54 -07:00
.gitignore x86/build: Add arch/x86/tools/insn_decoder_test to .gitignore 2018-02-13 14:10:29 +01:00
Kbuild
Kconfig cpu/hotplug: Provide knobs to control SMT 2018-06-21 14:20:58 +02:00
Kconfig.cpu Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-03-25 07:36:02 -10:00
Kconfig.debug x86, nfit_test: Add unit test for memcpy_mcsafe() 2018-05-22 23:18:31 -07:00
Makefile kbuild: add machine size to CHECKFLAGS 2018-06-01 11:36:58 +09:00
Makefile_32.cpu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile.um License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00