similar to: pxelinux.0 on pSeries

On Mon, Dec 05, 2016 at 10:19:22AM -0500, Pan Xinhui wrote: > pSeries/powerNV will use qspinlock from now on. > > Signed-off-by: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> > --- > arch/powerpc/platforms/pseries/Kconfig | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig

On Mon, Dec 05, 2016 at 10:19:22AM -0500, Pan Xinhui wrote: > pSeries/powerNV will use qspinlock from now on. > > Signed-off-by: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> > --- > arch/powerpc/platforms/pseries/Kconfig | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig

Nicholas Piggin <npiggin at gmail.com> writes: > Signed-off-by: Nicholas Piggin <npiggin at gmail.com> > --- > arch/powerpc/include/asm/paravirt.h | 28 ++++++++ > arch/powerpc/include/asm/qspinlock.h | 66 +++++++++++++++++++ > arch/powerpc/include/asm/qspinlock_paravirt.h | 7 ++ > arch/powerpc/platforms/pseries/Kconfig | 5 ++ >

Nicholas Piggin <npiggin at gmail.com> writes: > Signed-off-by: Nicholas Piggin <npiggin at gmail.com> > --- > arch/powerpc/include/asm/paravirt.h | 28 ++++++++ > arch/powerpc/include/asm/qspinlock.h | 66 +++++++++++++++++++ > arch/powerpc/include/asm/qspinlock_paravirt.h | 7 ++ > arch/powerpc/platforms/pseries/Kconfig | 5 ++ >

change from v4: BUG FIX. thanks boqun reporting this issue. struct __qspinlock has different layout in bigendian mahcine. native_queued_spin_unlock() may write value to a wrong address. now fix it. sorry for not even doing a test on bigendian machine before!!! change from v3: a big change in [PATCH v4 4/6] pv-qspinlock: powerpc support pv-qspinlock no other patch changed. and the patch

change from v4: BUG FIX. thanks boqun reporting this issue. struct __qspinlock has different layout in bigendian mahcine. native_queued_spin_unlock() may write value to a wrong address. now fix it. sorry for not even doing a test on bigendian machine before!!! change from v3: a big change in [PATCH v4 4/6] pv-qspinlock: powerpc support pv-qspinlock no other patch changed. and the patch

From: root <root at ltcalpine2-lp13.aus.stglabs.ibm.com> change from v4: BUG FIX. thanks boqun reporting this issue. struct __qspinlock has different layout in bigendian mahcine. native_queued_spin_unlock() may write value to a wrong address. now fix it. change from v3: a big change in [PATCH v4 4/6] pv-qspinlock: powerpc support pv-qspinlock no other patch changed. and the patch

From: root <root at ltcalpine2-lp13.aus.stglabs.ibm.com> change from v4: BUG FIX. thanks boqun reporting this issue. struct __qspinlock has different layout in bigendian mahcine. native_queued_spin_unlock() may write value to a wrong address. now fix it. change from v3: a big change in [PATCH v4 4/6] pv-qspinlock: powerpc support pv-qspinlock no other patch changed. and the patch

On 7/3/20 3:35 AM, Nicholas Piggin wrote: > Signed-off-by: Nicholas Piggin <npiggin at gmail.com> > --- > arch/powerpc/include/asm/paravirt.h | 28 ++++++++++ > arch/powerpc/include/asm/qspinlock.h | 55 +++++++++++++++++++ > arch/powerpc/include/asm/qspinlock_paravirt.h | 5 ++ > arch/powerpc/platforms/pseries/Kconfig | 5 ++ >

On 7/9/20 6:53 AM, Michael Ellerman wrote: > Nicholas Piggin <npiggin at gmail.com> writes: > >> Signed-off-by: Nicholas Piggin <npiggin at gmail.com> >> --- >> arch/powerpc/include/asm/paravirt.h | 28 ++++++++ >> arch/powerpc/include/asm/qspinlock.h | 66 +++++++++++++++++++ >> arch/powerpc/include/asm/qspinlock_paravirt.h |

? 2016/12/6 08:58, Boqun Feng ??: > On Mon, Dec 05, 2016 at 10:19:22AM -0500, Pan Xinhui wrote: >> pSeries/powerNV will use qspinlock from now on. >> >> Signed-off-by: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> >> --- >> arch/powerpc/platforms/pseries/Kconfig | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git

Signed-off-by: Nicholas Piggin <npiggin at gmail.com> --- arch/powerpc/include/asm/paravirt.h | 23 ++++++++ arch/powerpc/include/asm/qspinlock.h | 55 +++++++++++++++++++ arch/powerpc/include/asm/qspinlock_paravirt.h | 5 ++ arch/powerpc/platforms/pseries/Kconfig | 5 ++ arch/powerpc/platforms/pseries/setup.c | 6 +- include/asm-generic/qspinlock.h

Signed-off-by: Nicholas Piggin <npiggin at gmail.com> --- arch/powerpc/include/asm/paravirt.h | 28 ++++++++++ arch/powerpc/include/asm/qspinlock.h | 55 +++++++++++++++++++ arch/powerpc/include/asm/qspinlock_paravirt.h | 5 ++ arch/powerpc/platforms/pseries/Kconfig | 5 ++ arch/powerpc/platforms/pseries/setup.c | 6 +- include/asm-generic/qspinlock.h

pSeries/powerNV will use qspinlock from now on. Signed-off-by: Pan Xinhui <xinhui.pan at linux.vnet.ibm.com> --- arch/powerpc/platforms/pseries/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index bec90fb..8a87d06 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++

Signed-off-by: Nicholas Piggin <npiggin at gmail.com> --- arch/powerpc/include/asm/paravirt.h | 28 ++++++++ arch/powerpc/include/asm/qspinlock.h | 66 +++++++++++++++++++ arch/powerpc/include/asm/qspinlock_paravirt.h | 7 ++ arch/powerpc/platforms/pseries/Kconfig | 5 ++ arch/powerpc/platforms/pseries/setup.c | 6 +- include/asm-generic/qspinlock.h

change from v4: BUG FIX. thanks boqun reporting this issue. struct __qspinlock has different layout in bigendian mahcine. native_queued_spin_unlock() may write value to a wrong address. now fix it. sorry for not even doing a test on bigendian machine before!!! change from v3: a big change in [PATCH v4 4/6] pv-qspinlock: powerpc support pv-qspinlock no other patch changed. and the patch

This adds a hook which a platform can define in order to allow it to force the use of the DMA API for all virtio devices even if they don't have the VIRTIO_F_IOMMU_PLATFORM flag set. We want to use this to do bounce-buffering of data on the new secure pSeries platform, currently under development, where a KVM host cannot access all of the memory space of a secure KVM guest. The host can only

This adds a hook which a platform can define in order to allow it to force the use of the DMA API for all virtio devices even if they don't have the VIRTIO_F_IOMMU_PLATFORM flag set. We want to use this to do bounce-buffering of data on the new secure pSeries platform, currently under development, where a KVM host cannot access all of the memory space of a secure KVM guest. The host can only

There are certian platforms which would like to use SWIOTLB based DMA API for bouncing purpose without actually requiring an IOMMU back end. But the virtio core does not allow such mechanism. Right now DMA MAP API is only selected for devices which have an IOMMU and then the QEMU/host back end will process all incoming SG buffer addresses as IOVA instead of simple GPA which is the case for simple

There are certian platforms which would like to use SWIOTLB based DMA API for bouncing purpose without actually requiring an IOMMU back end. But the virtio core does not allow such mechanism. Right now DMA MAP API is only selected for devices which have an IOMMU and then the QEMU/host back end will process all incoming SG buffer addresses as IOVA instead of simple GPA which is the case for simple