linux/arch/mips
David Matlack cb953129bf kvm: add halt-polling cpu usage stats
Two new stats for exposing halt-polling cpu usage:
halt_poll_success_ns
halt_poll_fail_ns

Thus sum of these 2 stats is the total cpu time spent polling. "success"
means the VCPU polled until a virtual interrupt was delivered. "fail"
means the VCPU had to schedule out (either because the maximum poll time
was reached or it needed to yield the CPU).

To avoid touching every arch's kvm_vcpu_stat struct, only update and
export halt-polling cpu usage stats if we're on x86.

Exporting cpu usage as a u64 and in nanoseconds means we will overflow at
~500 years, which seems reasonably large.

Signed-off-by: David Matlack <dmatlack@google.com>
Signed-off-by: Jon Cargille <jcargill@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>

Message-Id: <20200508182240.68440-1-jcargill@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-05-15 12:26:26 -04:00
..
alchemy MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
ar7 MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
ath25 MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
ath79 MIPS: ath79: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-19 10:34:22 -08:00
bcm47xx MIPS: BCM47XX: Add support for Netgear R6200 V1 2019-07-25 22:10:05 -07:00
bcm63xx MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
bmips MIPS: BMIPS: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-19 10:36:02 -08:00
boot SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
cavium-octeon MIPS updates for v5.7: 2020-03-31 08:51:45 -07:00
cobalt MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
configs SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
crypto crypto: {arm,arm64,mips}/poly1305 - remove redundant non-reduction from emit 2020-01-16 15:18:12 +08:00
dec MIPS: pass non-NULL dev_id on shared request_irq() 2020-03-16 16:04:49 +01:00
emma MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
fw MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory 2020-04-09 00:13:45 +09:00
generic MIPS: generic: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-19 10:36:07 -08:00
include kvm: add halt-polling cpu usage stats 2020-05-15 12:26:26 -04:00
jazz MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
jz4740 MIPS: jz4740: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-19 10:36:12 -08:00
kernel asm-generic: fix unistd_32.h generation format 2020-04-07 10:43:42 -07:00
kvm kvm: add halt-polling cpu usage stats 2020-05-15 12:26:26 -04:00
lantiq remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
lasat MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
lib MIPS: do not compile generic functions for CONFIG_CAVIUM_OCTEON_SOC 2020-03-25 16:07:13 +01:00
loongson2ef MIPS: pass non-NULL dev_id on shared request_irq() 2020-03-16 16:04:49 +01:00
loongson32 MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
loongson64 MIPS: Loongson64: Load built-in dtbs 2020-03-25 16:07:12 +01:00
math-emu MIPS: Add MAC2008 Support 2020-01-22 15:56:08 -08:00
mm mm/vma: append unlikely() while testing VMA access permissions 2020-04-07 10:43:38 -07:00
mti-malta MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
net MIPS: BPF: Use sizeof_field() instead of FIELD_SIZEOF() 2020-01-10 11:33:35 -08:00
netlogic MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
oprofile MIPS: Loongson: Rename LOONGSON1 to LOONGSON32 2019-11-11 10:43:13 -08:00
paravirt
pci The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
pic32 MIPS: pic32mzda: Drop pointless static qualifier 2020-02-28 12:44:39 +01:00
pistachio MIPS: Pistachio: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-19 10:36:21 -08:00
pmcs-msp71xx MIPS: pass non-NULL dev_id on shared request_irq() 2020-03-16 16:04:49 +01:00
pnx833x A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
power mips: check for dsp presence only once before save/restore 2019-10-07 10:58:53 -07:00
ralink MIPS: ralink: mt7621: Fix soc_device introduction 2020-03-28 17:26:36 +01:00
rb532 remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
sgi-ip22 MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
sgi-ip27 mfd: ioc3: Add driver for SGI IOC3 chip 2020-01-09 15:30:59 -08:00
sgi-ip30 MIPS: SGI-IP30: Check for valid pointer before using it 2020-01-22 10:15:45 -08:00
sgi-ip32 MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
sibyte treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
sni MIPS: pass non-NULL dev_id on shared request_irq() 2020-03-16 16:04:49 +01:00
tools .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
txx9 A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
vdso .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
vr41xx MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
Kbuild treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kbuild.platforms MIPS: add support for SGI Octane (IP30) 2019-11-01 14:58:56 -07:00
Kconfig dma-mapping updates for 5.7 2020-04-04 10:12:47 -07:00
Kconfig.debug MIPS: cmdline: Remove redundant Kconfig defaults 2019-10-09 15:53:16 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-11-25 19:49:58 -08:00
Makefile.postlink MIPS: fix indentation of the 'RELOCS' message 2020-01-20 15:37:30 -08:00