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Some virtio device drivers (9p) need to translate high virtual addresses to physical addresses, which are inserted into the virtqueue for processing by userspace. This patch exports the kmap_to_page symbol, so that the affected drivers can be compiled as modules. Signed-off-by: Will Deacon <will.deacon at arm.com> --- mm/highmem.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/mm/highmem.c b/mm/highmem.c index d517cd1..2a07f97 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -105,6 +105,7 @@ struct page *kmap_to_page(void *vaddr) return virt_to_pag...

Some virtio device drivers (9p) need to translate high virtual addresses to physical addresses, which are inserted into the virtqueue for processing by userspace. This patch exports the kmap_to_page symbol, so that the affected drivers can be compiled as modules. Signed-off-by: Will Deacon <will.deacon at arm.com> --- mm/highmem.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/mm/highmem.c b/mm/highmem.c index d517cd1..2a07f97 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -105,6 +105,7 @@ struct page *kmap_to_page(void *vaddr) return virt_to_pag...

On Tue, Jan 10, 2017 at 05:51:18PM +0000, Robin Murphy wrote: > From: Will Deacon <will.deacon at arm.com> > > Booting Linux on an ARM fastmodel containing an SMMU emulation results > in an unexpected I/O page fault from the legacy virtio-blk PCI device: > > [ 1.211721] arm-smmu-v3 2b400000.smmu: event 0x10 received: > [ 1.211800] arm-smmu-v3 2b40...

On Tue, Jan 10, 2017 at 05:51:18PM +0000, Robin Murphy wrote: > From: Will Deacon <will.deacon at arm.com> > > Booting Linux on an ARM fastmodel containing an SMMU emulation results > in an unexpected I/O page fault from the legacy virtio-blk PCI device: > > [ 1.211721] arm-smmu-v3 2b400000.smmu: event 0x10 received: > [ 1.211800] arm-smmu-v3 2b40...

On Wed, Jan 11, 2017 at 2:01 AM, Will Deacon <will.deacon at arm.com> wrote: > On Wed, Jan 11, 2017 at 01:33:31AM +0200, Michael S. Tsirkin wrote: >> On Tue, Jan 10, 2017 at 05:51:18PM +0000, Robin Murphy wrote: >> > From: Will Deacon <will.deacon at arm.com> >> > >> > Booting Linux on an ARM fa...

On Wed, Jan 11, 2017 at 2:01 AM, Will Deacon <will.deacon at arm.com> wrote: > On Wed, Jan 11, 2017 at 01:33:31AM +0200, Michael S. Tsirkin wrote: >> On Tue, Jan 10, 2017 at 05:51:18PM +0000, Robin Murphy wrote: >> > From: Will Deacon <will.deacon at arm.com> >> > >> > Booting Linux on an ARM fa...

On 20/01/17 10:33, Will Deacon wrote: > On Thu, Jan 19, 2017 at 11:51:06PM +0200, Michael S. Tsirkin wrote: >> On Mon, Jan 16, 2017 at 02:34:08PM +0000, Will Deacon wrote: >>> On Mon, Jan 16, 2017 at 04:27:28PM +0200, Michael S. Tsirkin wrote: >>>> On Mon, Jan 16, 2017 at 02:21:03PM +0000, Will Deac...

On 20/01/17 10:33, Will Deacon wrote: > On Thu, Jan 19, 2017 at 11:51:06PM +0200, Michael S. Tsirkin wrote: >> On Mon, Jan 16, 2017 at 02:34:08PM +0000, Will Deacon wrote: >>> On Mon, Jan 16, 2017 at 04:27:28PM +0200, Michael S. Tsirkin wrote: >>>> On Mon, Jan 16, 2017 at 02:21:03PM +0000, Will Deac...

On Mon, Jan 16, 2017 at 02:34:08PM +0000, Will Deacon wrote: > On Mon, Jan 16, 2017 at 04:27:28PM +0200, Michael S. Tsirkin wrote: > > On Mon, Jan 16, 2017 at 02:21:03PM +0000, Will Deacon wrote: > > > On Mon, Jan 16, 2017 at 04:18:03PM +0200, Michael S. Tsirkin wrote: > > > > On Mon, Jan 16, 2017 at 10:40:28AM +0000, Wil...

On Mon, Jan 16, 2017 at 02:34:08PM +0000, Will Deacon wrote: > On Mon, Jan 16, 2017 at 04:27:28PM +0200, Michael S. Tsirkin wrote: > > On Mon, Jan 16, 2017 at 02:21:03PM +0000, Will Deacon wrote: > > > On Mon, Jan 16, 2017 at 04:18:03PM +0200, Michael S. Tsirkin wrote: > > > > On Mon, Jan 16, 2017 at 10:40:28AM +0000, Wil...

On Wed, Jan 11, 2017 at 10:01:39AM +0000, Will Deacon wrote: > On Wed, Jan 11, 2017 at 01:33:31AM +0200, Michael S. Tsirkin wrote: > > On Tue, Jan 10, 2017 at 05:51:18PM +0000, Robin Murphy wrote: > > > From: Will Deacon <will.deacon at arm.com> > > > > > > Booting Linux on an ARM fastmodel containing an SMMU...

On Wed, Jan 11, 2017 at 10:01:39AM +0000, Will Deacon wrote: > On Wed, Jan 11, 2017 at 01:33:31AM +0200, Michael S. Tsirkin wrote: > > On Tue, Jan 10, 2017 at 05:51:18PM +0000, Robin Murphy wrote: > > > From: Will Deacon <will.deacon at arm.com> > > > > > > Booting Linux on an ARM fastmodel containing an SMMU...

On Fri, Jan 13, 2017 at 09:25:22AM +0000, Will Deacon wrote: > On Fri, Jan 13, 2017 at 12:12:56AM +0200, Michael S. Tsirkin wrote: > > On Wed, Jan 11, 2017 at 10:01:39AM +0000, Will Deacon wrote: > > > On Wed, Jan 11, 2017 at 01:33:31AM +0200, Michael S. Tsirkin wrote: > > > > On Tue, Jan 10, 2017 at 05:51:18PM +0000, Rob...

On Fri, Jan 13, 2017 at 09:25:22AM +0000, Will Deacon wrote: > On Fri, Jan 13, 2017 at 12:12:56AM +0200, Michael S. Tsirkin wrote: > > On Wed, Jan 11, 2017 at 10:01:39AM +0000, Will Deacon wrote: > > > On Wed, Jan 11, 2017 at 01:33:31AM +0200, Michael S. Tsirkin wrote: > > > > On Tue, Jan 10, 2017 at 05:51:18PM +0000, Rob...

On Mon, Jan 16, 2017 at 02:21:03PM +0000, Will Deacon wrote: > On Mon, Jan 16, 2017 at 04:18:03PM +0200, Michael S. Tsirkin wrote: > > On Mon, Jan 16, 2017 at 10:40:28AM +0000, Will Deacon wrote: > > > On Fri, Jan 13, 2017 at 08:23:35PM +0200, Michael S. Tsirkin wrote: > > > > On Fri, Jan 13, 2017 at 05:21:54PM +0000, Wil...

On Mon, Jan 16, 2017 at 02:21:03PM +0000, Will Deacon wrote: > On Mon, Jan 16, 2017 at 04:18:03PM +0200, Michael S. Tsirkin wrote: > > On Mon, Jan 16, 2017 at 10:40:28AM +0000, Will Deacon wrote: > > > On Fri, Jan 13, 2017 at 08:23:35PM +0200, Michael S. Tsirkin wrote: > > > > On Fri, Jan 13, 2017 at 05:21:54PM +0000, Wil...

...ides a means for us to force the coherent DMA ops for legacy virtio devices on arm64, which in turn means that we can enable the SMMU with legacy devices in our fastmodel emulation platform (which is slowly being upgraded to virtio 1.0) without hanging during boot. Patch below. So: Acked-by: Will Deacon <will.deacon at arm.com> Tested-by: Will Deacon <will.deacon at arm.com> Thanks! Will --->8 >From 4ef39e9de2c87c97bf046816ca762832f92e39b5 Mon Sep 17 00:00:00 2001 From: Will Deacon <will.deacon at arm.com> Date: Fri, 27 Jul 2018 10:49:25 +0100 Subject: [PATCH] arm64: dm...

On Tue, Jan 24, 2017 at 04:04:11PM +0000, Marc Zyngier wrote: > On 20/01/17 10:33, Will Deacon wrote: > > On Thu, Jan 19, 2017 at 11:51:06PM +0200, Michael S. Tsirkin wrote: > >> On Mon, Jan 16, 2017 at 02:34:08PM +0000, Will Deacon wrote: > >>> On Mon, Jan 16, 2017 at 04:27:28PM +0200, Michael S. Tsirkin wrote: > >>>> On Mon, Jan 16, 2017 at 02:21:0...

On Fri, Jan 13, 2017 at 05:21:54PM +0000, Will Deacon wrote: > On Fri, Jan 13, 2017 at 06:46:32PM +0200, Michael S. Tsirkin wrote: > > On Fri, Jan 13, 2017 at 09:25:22AM +0000, Will Deacon wrote: > > > On Fri, Jan 13, 2017 at 12:12:56AM +0200, Michael S. Tsirkin wrote: > > > > On Wed, Jan 11, 2017 at 10:01:39AM +0000, Wil...

On Fri, Jan 13, 2017 at 05:21:54PM +0000, Will Deacon wrote: > On Fri, Jan 13, 2017 at 06:46:32PM +0200, Michael S. Tsirkin wrote: > > On Fri, Jan 13, 2017 at 09:25:22AM +0000, Will Deacon wrote: > > > On Fri, Jan 13, 2017 at 12:12:56AM +0200, Michael S. Tsirkin wrote: > > > > On Wed, Jan 11, 2017 at 10:01:39AM +0000, Wil...