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...uter which has IBM JS20 Blades. I compiled the SLOF firmware from the source on one of the blade. The compilation went smooth and generated the following binaries *boot_rom.bin boot_rom_bimini.bin* When we try to flash boot_rom.bin firmware binary then we get the following error: * update_flash: RTAS: validate() Invalid candidate image for this platform* whereas if we try to flash the original IBM firmware then it install smoothly as shown below: *update_flash -f /etc/microcode/ibm_fw_bios_* *fw08401160_anyos_ppc64.img info: Temporary side will be updated with a newer or identical image Proj...

...uter which has IBM JS20 Blades. I compiled the SLOF firmware from the source on one of the blade. The compilation went smooth and generated the following binaries *boot_rom.bin boot_rom_bimini.bin* When we try to flash boot_rom.bin firmware binary then we get the following error: * update_flash: RTAS: validate() Invalid candidate image for this platform* whereas if we try to flash the original IBM firmware then it install smoothly as shown below: *update_flash -f /etc/microcode/ibm_fw_bios_* *fw08401160_anyos_ppc64.img info: Temporary side will be updated with a newer or identical image Proj...

...> > @@ -38,6 +38,7 @@ > > #include <linux/of.h> > > #include <linux/iommu.h> > > #include <linux/rculist.h> > > +#include <linux/virtio.h> > > #include <asm/io.h> > > #include <asm/prom.h> > > #include <asm/rtas.h> > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > __setup("multitce=", disable_multitce); > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > > + > > +bool platform_forces_virtio_dma(struct...

...> > @@ -38,6 +38,7 @@ > > #include <linux/of.h> > > #include <linux/iommu.h> > > #include <linux/rculist.h> > > +#include <linux/virtio.h> > > #include <asm/io.h> > > #include <asm/prom.h> > > #include <asm/rtas.h> > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > __setup("multitce=", disable_multitce); > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > > + > > +bool platform_forces_virtio_dma(struct...

.../powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -38,6 +38,7 @@ #include <linux/of.h> #include <linux/iommu.h> #include <linux/rculist.h> +#include <linux/virtio.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) __setup("multitce=", disable_multitce); machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); + +bool platform_forces_virtio_dma(struct virtio_device *vdev) +{ + /* + * On protected guest platfor...

.../powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -38,6 +38,7 @@ #include <linux/of.h> #include <linux/iommu.h> #include <linux/rculist.h> +#include <linux/virtio.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) __setup("multitce=", disable_multitce); machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); + +bool platform_forces_virtio_dma(struct virtio_device *vdev) +{ + /* + * On protected guest platfor...

.../arch/powerpc/platforms/pseries/iommu.c > @@ -38,6 +38,7 @@ > #include <linux/of.h> > #include <linux/iommu.h> > #include <linux/rculist.h> > +#include <linux/virtio.h> > #include <asm/io.h> > #include <asm/prom.h> > #include <asm/rtas.h> > @@ -1396,3 +1397,8 @@ static int __init disable_multitce(char *str) > __setup("multitce=", disable_multitce); > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > + > +void platform_override_dma_ops(struct virtio_device *vdev) > +{ &gt...

.../arch/powerpc/platforms/pseries/iommu.c > @@ -38,6 +38,7 @@ > #include <linux/of.h> > #include <linux/iommu.h> > #include <linux/rculist.h> > +#include <linux/virtio.h> > #include <asm/io.h> > #include <asm/prom.h> > #include <asm/rtas.h> > @@ -1396,3 +1397,8 @@ static int __init disable_multitce(char *str) > __setup("multitce=", disable_multitce); > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > + > +void platform_override_dma_ops(struct virtio_device *vdev) > +{ &gt...

....h> > > > > #include <linux/iommu.h> > > > > #include <linux/rculist.h> > > > > +#include <linux/virtio.h> > > > > #include <asm/io.h> > > > > #include <asm/prom.h> > > > > #include <asm/rtas.h> > > > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > > > __setup("multitce=", disable_multitce); > > > > > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > > > > +...

....h> > > > > #include <linux/iommu.h> > > > > #include <linux/rculist.h> > > > > +#include <linux/virtio.h> > > > > #include <asm/io.h> > > > > #include <asm/prom.h> > > > > #include <asm/rtas.h> > > > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > > > __setup("multitce=", disable_multitce); > > > > > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > > > > +...

.../powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -38,6 +38,7 @@ #include <linux/of.h> #include <linux/iommu.h> #include <linux/rculist.h> +#include <linux/virtio.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -1396,3 +1397,8 @@ static int __init disable_multitce(char *str) __setup("multitce=", disable_multitce); machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); + +void platform_override_dma_ops(struct virtio_device *vdev) +{ + /* Override vdev->parent.dma_ops...

From: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> This patch aims to enable qspinlock on PPC. And on pseries platform, it also support paravirt qspinlock. Signed-off-by: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> --- arch/powerpc/include/asm/qspinlock.h | 37 +++++++++++++++ arch/powerpc/include/asm/qspinlock_paravirt.h | 36 +++++++++++++++

From: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> This patch aims to enable qspinlock on PPC. And on pseries platform, it also support paravirt qspinlock. Signed-off-by: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> --- arch/powerpc/include/asm/qspinlock.h | 37 +++++++++++++++ arch/powerpc/include/asm/qspinlock_paravirt.h | 36 +++++++++++++++

...t; > #include <linux/of.h> > > > #include <linux/iommu.h> > > > #include <linux/rculist.h> > > > +#include <linux/virtio.h> > > > #include <asm/io.h> > > > #include <asm/prom.h> > > > #include <asm/rtas.h> > > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > > __setup("multitce=", disable_multitce); > > > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > > > + > > > +bool plat...

...t; > #include <linux/of.h> > > > #include <linux/iommu.h> > > > #include <linux/rculist.h> > > > +#include <linux/virtio.h> > > > #include <asm/io.h> > > > #include <asm/prom.h> > > > #include <asm/rtas.h> > > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > > __setup("multitce=", disable_multitce); > > > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > > > + > > > +bool plat...

.../arch/powerpc/platforms/pseries/iommu.c > @@ -38,6 +38,7 @@ > #include <linux/of.h> > #include <linux/iommu.h> > #include <linux/rculist.h> > +#include <linux/virtio.h> > #include <asm/io.h> > #include <asm/prom.h> > #include <asm/rtas.h> > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > __setup("multitce=", disable_multitce); > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); > + > +bool platform_forces_virtio_dma(struct virtio_device *vdev) > +{ &...

...iommu.c >> @@ -38,6 +38,7 @@ >> #include <linux/of.h> >> #include <linux/iommu.h> >> #include <linux/rculist.h> >> +#include <linux/virtio.h> >> #include <asm/io.h> >> #include <asm/prom.h> >> #include <asm/rtas.h> >> @@ -1396,3 +1397,8 @@ static int __init disable_multitce(char *str) >> __setup("multitce=", disable_multitce); >> >> machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); >> + >> +void platform_override_dma_ops(struct virtio_d...

change fome v1: separate into 6 pathes from one patch some minor code changes. benchmark test results are below. run 3 tests on pseries IBM,8408-E8E with 32cpus, 64GB memory perf bench futex hash perf bench futex lock-pi perf record -advRT || perf bench sched messaging -g 1000 || perf report summary: _____test________________spinlcok______________pv-qspinlcok_____ |futex hash | 556370 ops |

change fome v1: separate into 6 pathes from one patch some minor code changes. benchmark test results are below. run 3 tests on pseries IBM,8408-E8E with 32cpus, 64GB memory perf bench futex hash perf bench futex lock-pi perf record -advRT || perf bench sched messaging -g 1000 || perf report summary: _____test________________spinlcok______________pv-qspinlcok_____ |futex hash | 556370 ops |

...; #include <linux/iommu.h> > > > > > #include <linux/rculist.h> > > > > > +#include <linux/virtio.h> > > > > > #include <asm/io.h> > > > > > #include <asm/prom.h> > > > > > #include <asm/rtas.h> > > > > > @@ -1396,3 +1397,13 @@ static int __init disable_multitce(char *str) > > > > > __setup("multitce=", disable_multitce); > > > > > > > > > > machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init); &g...