search for: config_hw_random_virtio

No need to get into the submenu to disable all VIRTIO-related config entries. This makes it easier to disable all VIRTIO config options without entering the submenu. It will also enable one to see that en/dis-abled state from the outside menu. This is only intended to change menuconfig UI, not change the config dependencies. Signed-off-by: Vincent Legoll <vincent.legoll at gmail.com> ---

No need to get into the submenu to disable all VIRTIO-related config entries. This makes it easier to disable all VIRTIO config options without entering the submenu. It will also enable one to see that en/dis-abled state from the outside menu. This is only intended to change menuconfig UI, not change the config dependencies. Signed-off-by: Vincent Legoll <vincent.legoll at gmail.com> ---

...1.1 which in turn switched to getrandom() (for its randomness). This syscall will block until kernel's rng is ready which took in this example almost 69 seconds. Those "high" numbers are not a problem on decent/recent HW but occur oftern on in virtualized environments. For KVM we have CONFIG_HW_RANDOM_VIRTIO. Are there any plans to get something similar for VMware/Vbox? [0] http://bugs.debian.org/912087 Sebastian

...17,8 @@ obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o obj-$(CONFIG_HW_RANDOM_OMAP3_ROM) += omap3-rom-rng.o obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o +CFLAGS_virtio_transport.o += -D__CHECK_ENDIAN__ +CFLAGS_virtio-rng.o += -D__CHECK_ENDIAN__ obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o diff --git a/drivers/gpu/drm/virtio/Makefile b/drivers/gpu/drm/virtio/Makefile index 3fb8eac..1162366 100644 --- a/drivers/gpu/drm/virtio/Makefile +++ b/drivers/gpu/drm/virtio/Makefile @...

...0..b4940dd 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o +obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c new file mode 100644 index 0000000..f723cc3 --- /dev/null +++ b/drivers/char/hw_random/virtio-rng.c @@ -0,0 +1,124 @@ +/* + * Randomness driver for virtio + * Copyright (C) 2007 Rusty Russell I...

...0..b4940dd 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o +obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c new file mode 100644 index 0000000..f723cc3 --- /dev/null +++ b/drivers/char/hw_random/virtio-rng.c @@ -0,0 +1,124 @@ +/* + * Randomness driver for virtio + * Copyright (C) 2007 Rusty Russell I...

I run latest sparse from git on virtio drivers (turns out the version I had was rather outdated). This patchset fixes a couple of bugs this uncovered, and adds some annotations to make it sparse-clean. In particular, endian-ness is often tricky, so this patchset enabled endian-ness checks for sparse builds. Michael S. Tsirkin (10): virtio_console: drop unused config fields drm/virtio: fix

I run latest sparse from git on virtio drivers (turns out the version I had was rather outdated). This patchset fixes a couple of bugs this uncovered, and adds some annotations to make it sparse-clean. In particular, endian-ness is often tricky, so this patchset enabled endian-ness checks for sparse builds. Michael S. Tsirkin (10): virtio_console: drop unused config fields drm/virtio: fix

...I_PANIC_STRING=y CONFIG_IPMI_DEVICE_INTERFACE=y CONFIG_IPMI_SI=y # CONFIG_IPMI_WATCHDOG is not set CONFIG_IPMI_POWEROFF=y CONFIG_HW_RANDOM=y # CONFIG_HW_RANDOM_TIMERIOMEM is not set CONFIG_HW_RANDOM_INTEL=y CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_GEODE is not set # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=y # CONFIG_NVRAM is not set CONFIG_APPLICOM=y CONFIG_SONYPI=y # CONFIG_SCx200_GPIO is not set # CONFIG_PC8736x_GPIO is not set # CONFIG_NSC_GPIO is not set CONFIG_HANGCHECK_TIMER=y # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set CONFIG_DEVPORT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y CONFIG_I...

...I_PANIC_STRING=y CONFIG_IPMI_DEVICE_INTERFACE=y CONFIG_IPMI_SI=y # CONFIG_IPMI_WATCHDOG is not set CONFIG_IPMI_POWEROFF=y CONFIG_HW_RANDOM=y # CONFIG_HW_RANDOM_TIMERIOMEM is not set CONFIG_HW_RANDOM_INTEL=y CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_GEODE is not set # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=y # CONFIG_NVRAM is not set CONFIG_APPLICOM=y CONFIG_SONYPI=y # CONFIG_SCx200_GPIO is not set # CONFIG_PC8736x_GPIO is not set # CONFIG_NSC_GPIO is not set CONFIG_HANGCHECK_TIMER=y # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set CONFIG_DEVPORT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y CONFIG_I...

On 12/20/2011 10:47 PM, Stephen Rothwell wrote: > Hi all, > > Changes since 20111220: drivers/xen/xenbus/xenbus_dev_backend.c:74:2: error: implicit declaration of function ''xen_initial_domain'' Full randconfig file is attached. -- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code ***

...256 CONFIG_HVC_DRIVER=y CONFIG_VIRTIO_CONSOLE=m CONFIG_IPMI_HANDLER=m # CONFIG_IPMI_PANIC_EVENT is not set CONFIG_IPMI_DEVICE_INTERFACE=m CONFIG_IPMI_SI=m CONFIG_IPMI_WATCHDOG=m CONFIG_IPMI_POWEROFF=m CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_TIMERIOMEM=m CONFIG_HW_RANDOM_INTEL=m CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_VIRTIO is not set CONFIG_NVRAM=m # CONFIG_R3964 is not set CONFIG_APPLICOM=m # # PCMCIA character devices # CONFIG_SYNCLINK_CS=m # CONFIG_CARDMAN_4000 is not set # CONFIG_CARDMAN_4040 is not set CONFIG_IPWIRELESS=m CONFIG_MWAVE=m # CONFIG_PC8736x_GPIO is not set CONFIG_RAW_DRIVER=m CONFIG_MAX_RAW_DEVS=10...

...256 CONFIG_HVC_DRIVER=y CONFIG_VIRTIO_CONSOLE=m CONFIG_IPMI_HANDLER=m # CONFIG_IPMI_PANIC_EVENT is not set CONFIG_IPMI_DEVICE_INTERFACE=m CONFIG_IPMI_SI=m CONFIG_IPMI_WATCHDOG=m CONFIG_IPMI_POWEROFF=m CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_TIMERIOMEM=m CONFIG_HW_RANDOM_INTEL=m CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_VIRTIO is not set CONFIG_NVRAM=m # CONFIG_R3964 is not set CONFIG_APPLICOM=m # # PCMCIA character devices # CONFIG_SYNCLINK_CS=m # CONFIG_CARDMAN_4000 is not set # CONFIG_CARDMAN_4040 is not set CONFIG_IPWIRELESS=m CONFIG_MWAVE=m # CONFIG_PC8736x_GPIO is not set CONFIG_RAW_DRIVER=m CONFIG_MAX_RAW_DEVS=10...

...256 CONFIG_HVC_DRIVER=y CONFIG_VIRTIO_CONSOLE=m CONFIG_IPMI_HANDLER=m # CONFIG_IPMI_PANIC_EVENT is not set CONFIG_IPMI_DEVICE_INTERFACE=m CONFIG_IPMI_SI=m CONFIG_IPMI_WATCHDOG=m CONFIG_IPMI_POWEROFF=m CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_TIMERIOMEM=m CONFIG_HW_RANDOM_INTEL=m CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_VIRTIO is not set CONFIG_NVRAM=m # CONFIG_R3964 is not set CONFIG_APPLICOM=m # # PCMCIA character devices # CONFIG_SYNCLINK_CS=m # CONFIG_CARDMAN_4000 is not set # CONFIG_CARDMAN_4040 is not set CONFIG_IPWIRELESS=m CONFIG_MWAVE=m # CONFIG_PC8736x_GPIO is not set CONFIG_RAW_DRIVER=m CONFIG_MAX_RAW_DEVS=10...

...ERIAL_RP2 is not set # CONFIG_SERIAL_FSL_LPUART is not set CONFIG_HVC_DRIVER=y CONFIG_VIRTIO_CONSOLE=y # CONFIG_IPMI_HANDLER is not set CONFIG_HW_RANDOM=y # CONFIG_HW_RANDOM_TIMERIOMEM is not set # CONFIG_HW_RANDOM_INTEL is not set # CONFIG_HW_RANDOM_AMD is not set # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=y # CONFIG_NVRAM is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_MWAVE is not set # CONFIG_RAW_DRIVER is not set CONFIG_HPET=y # CONFIG_HPET_MMAP is not set CONFIG_HANGCHECK_TIMER=y # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set CONFIG_DEVPORT=y CONFIG_I2C=y CON...

...ERIAL_RP2 is not set # CONFIG_SERIAL_FSL_LPUART is not set CONFIG_HVC_DRIVER=y CONFIG_VIRTIO_CONSOLE=y # CONFIG_IPMI_HANDLER is not set CONFIG_HW_RANDOM=y # CONFIG_HW_RANDOM_TIMERIOMEM is not set # CONFIG_HW_RANDOM_INTEL is not set # CONFIG_HW_RANDOM_AMD is not set # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=y # CONFIG_NVRAM is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_MWAVE is not set # CONFIG_RAW_DRIVER is not set CONFIG_HPET=y # CONFIG_HPET_MMAP is not set CONFIG_HANGCHECK_TIMER=y # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set CONFIG_DEVPORT=y CONFIG_I2C=y CON...

...ANIC_STRING=y CONFIG_IPMI_DEVICE_INTERFACE=m CONFIG_IPMI_SI=m CONFIG_IPMI_SSIF=m CONFIG_IPMI_WATCHDOG=m CONFIG_IPMI_POWEROFF=m # CONFIG_IPMB_DEVICE_INTERFACE is not set CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_TIMERIOMEM=y CONFIG_HW_RANDOM_INTEL=y CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=m CONFIG_APPLICOM=m # # PCMCIA character devices # CONFIG_SYNCLINK_CS=m CONFIG_CARDMAN_4000=m CONFIG_CARDMAN_4040=m # CONFIG_SCR24X is not set # end of PCMCIA character devices # CONFIG_MWAVE is not set CONFIG_DEVMEM=y # CONFIG_DEVKMEM is not set CONFIG_NVRAM=y CONFIG_DEVPORT=y # CONFIG_HPET is n...

...ANIC_STRING=y CONFIG_IPMI_DEVICE_INTERFACE=m CONFIG_IPMI_SI=m CONFIG_IPMI_SSIF=m CONFIG_IPMI_WATCHDOG=m CONFIG_IPMI_POWEROFF=m # CONFIG_IPMB_DEVICE_INTERFACE is not set CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_TIMERIOMEM=y CONFIG_HW_RANDOM_INTEL=y CONFIG_HW_RANDOM_AMD=y # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=m CONFIG_APPLICOM=m # # PCMCIA character devices # CONFIG_SYNCLINK_CS=m CONFIG_CARDMAN_4000=m CONFIG_CARDMAN_4040=m # CONFIG_SCR24X is not set # end of PCMCIA character devices # CONFIG_MWAVE is not set CONFIG_DEVMEM=y # CONFIG_DEVKMEM is not set CONFIG_NVRAM=y CONFIG_DEVPORT=y # CONFIG_HPET is n...

Setting the IF flag can cause an VM exit. So we should avoid touching the IF flag until absolutely necessary. This patch change the way the paravirt arch_local_irq_restore() works by checking the previous flags value and call arch_local_irq_enable() only if the IF flag was set previously. On a 32 vCPUs KVM guest running the AIM7 five-sec workload, the performance increased slightly from 302136.32

Setting the IF flag can cause an VM exit. So we should avoid touching the IF flag until absolutely necessary. This patch change the way the paravirt arch_local_irq_restore() works by checking the previous flags value and call arch_local_irq_enable() only if the IF flag was set previously. On a 32 vCPUs KVM guest running the AIM7 five-sec workload, the performance increased slightly from 302136.32