Jiang Liu 9ebd682e5a iommu/vt-d: Fix incorrect iommu_count for si_domain ... The iommu_count field in si_domain(static identity domain) is initialized to zero and never increases. It will underflow when tearing down iommu unit in function free_dmar_iommu() and leak memory. So refine code to correctly manage si_domain->iommu_count. Warning message caused by si_domain memory leak: [ 14.609681] IOMMU: Setting RMRR: [ 14.613496] Ignoring identity map for HW passthrough device 0000:00:1a.0 [0xbdcfd000 - 0xbdd1dfff] [ 14.623809] Ignoring identity map for HW passthrough device 0000:00:1d.0 [0xbdcfd000 - 0xbdd1dfff] [ 14.634162] IOMMU: Prepare 0-16MiB unity mapping for LPC [ 14.640329] Ignoring identity map for HW passthrough device 0000:00:1f.0 [0x0 - 0xffffff] [ 14.673360] IOMMU: dmar init failed [ 14.678157] kmem_cache_destroy iommu_devinfo: Slab cache still has objects [ 14.686076] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-gerry+ #59 [ 14.694176] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012 [ 14.707412] 0000000000000000 ffff88042dd33db0 ffffffff8156223d ffff880c2cc37c00 [ 14.716407] ffff88042dd33dc8 ffffffff811790b1 ffff880c2d3533b8 ffff88042dd33e00 [ 14.725468] ffffffff81dc7a6a ffffffff81b1e8e0 ffffffff81f84058 ffffffff81d8a711 [ 14.734464] Call Trace: [ 14.737453] [<ffffffff8156223d>] dump_stack+0x4d/0x66 [ 14.743430] [<ffffffff811790b1>] kmem_cache_destroy+0xf1/0x100 [ 14.750279] [<ffffffff81dc7a6a>] intel_iommu_init+0x122/0x56a [ 14.757035] [<ffffffff81d8a711>] ? iommu_setup+0x27d/0x27d [ 14.763491] [<ffffffff81d8a739>] pci_iommu_init+0x28/0x52 [ 14.769846] [<ffffffff81000342>] do_one_initcall+0x122/0x180 [ 14.776506] [<ffffffff81077738>] ? parse_args+0x1e8/0x320 [ 14.782866] [<ffffffff81d850e8>] kernel_init_freeable+0x1e1/0x26c [ 14.789994] [<ffffffff81d84833>] ? do_early_param+0x88/0x88 [ 14.796556] [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0 [ 14.802626] [<ffffffff8154ffce>] kernel_init+0xe/0x130 [ 14.808698] [<ffffffff815756ac>] ret_from_fork+0x7c/0xb0 [ 14.814963] [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0 [ 14.821640] kmem_cache_destroy iommu_domain: Slab cache still has objects [ 14.829456] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-gerry+ #59 [ 14.837562] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012 [ 14.850803] 0000000000000000 ffff88042dd33db0 ffffffff8156223d ffff88102c1ee3c0 [ 14.861222] ffff88042dd33dc8 ffffffff811790b1 ffff880c2d3533b8 ffff88042dd33e00 [ 14.870284] ffffffff81dc7a76 ffffffff81b1e8e0 ffffffff81f84058 ffffffff81d8a711 [ 14.879271] Call Trace: [ 14.882227] [<ffffffff8156223d>] dump_stack+0x4d/0x66 [ 14.888197] [<ffffffff811790b1>] kmem_cache_destroy+0xf1/0x100 [ 14.895034] [<ffffffff81dc7a76>] intel_iommu_init+0x12e/0x56a [ 14.901781] [<ffffffff81d8a711>] ? iommu_setup+0x27d/0x27d [ 14.908238] [<ffffffff81d8a739>] pci_iommu_init+0x28/0x52 [ 14.914594] [<ffffffff81000342>] do_one_initcall+0x122/0x180 [ 14.921244] [<ffffffff81077738>] ? parse_args+0x1e8/0x320 [ 14.927598] [<ffffffff81d850e8>] kernel_init_freeable+0x1e1/0x26c [ 14.934738] [<ffffffff81d84833>] ? do_early_param+0x88/0x88 [ 14.941309] [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0 [ 14.947380] [<ffffffff8154ffce>] kernel_init+0xe/0x130 [ 14.953430] [<ffffffff815756ac>] ret_from_fork+0x7c/0xb0 [ 14.959689] [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0 [ 14.966299] kmem_cache_destroy iommu_iova: Slab cache still has objects [ 14.973923] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-gerry+ #59 [ 14.982020] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012 [ 14.995263] 0000000000000000 ffff88042dd33db0 ffffffff8156223d ffff88042cb5c980 [ 15.004265] ffff88042dd33dc8 ffffffff811790b1 ffff880c2d3533b8 ffff88042dd33e00 [ 15.013322] ffffffff81dc7a82 ffffffff81b1e8e0 ffffffff81f84058 ffffffff81d8a711 [ 15.022318] Call Trace: [ 15.025238] [<ffffffff8156223d>] dump_stack+0x4d/0x66 [ 15.031202] [<ffffffff811790b1>] kmem_cache_destroy+0xf1/0x100 [ 15.038038] [<ffffffff81dc7a82>] intel_iommu_init+0x13a/0x56a [ 15.044786] [<ffffffff81d8a711>] ? iommu_setup+0x27d/0x27d [ 15.051242] [<ffffffff81d8a739>] pci_iommu_init+0x28/0x52 [ 15.057601] [<ffffffff81000342>] do_one_initcall+0x122/0x180 [ 15.064254] [<ffffffff81077738>] ? parse_args+0x1e8/0x320 [ 15.070608] [<ffffffff81d850e8>] kernel_init_freeable+0x1e1/0x26c [ 15.077747] [<ffffffff81d84833>] ? do_early_param+0x88/0x88 [ 15.084300] [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0 [ 15.090362] [<ffffffff8154ffce>] kernel_init+0xe/0x130 [ 15.096431] [<ffffffff815756ac>] ret_from_fork+0x7c/0xb0 [ 15.102693] [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0 [ 15.189273] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>		2014-03-04 17:51:02 +01:00
..
amd_iommu_init.c
amd_iommu_proto.h
amd_iommu_types.h
amd_iommu_v2.c
amd_iommu.c
arm-smmu.c	arm/smmu: Use irqsafe spinlock for domain lock	2014-02-20 13:04:47 +01:00
dmar.c	iommu/vt-d: Factor out dmar_alloc_dev_scope() for later reuse	2014-03-04 17:51:00 +01:00
exynos-iommu.c
fsl_pamu_domain.c
fsl_pamu_domain.h
fsl_pamu.c
fsl_pamu.h
intel_irq_remapping.c
intel-iommu.c	iommu/vt-d: Fix incorrect iommu_count for si_domain	2014-03-04 17:51:02 +01:00
iommu-traces.c
iommu.c
iova.c
irq_remapping.c
irq_remapping.h
Kconfig
Makefile
msm_iommu_dev.c
msm_iommu_hw-8xxx.h
msm_iommu.c
msm_iommu.h
of_iommu.c
omap-iommu2.c
omap-iommu-debug.c	drivers/iommu/omap-iommu-debug.c: fix decimal permissions	2014-02-25 15:25:42 -08:00
omap-iommu.c
omap-iommu.h
omap-iopgtable.h
omap-iovmm.c
pci.h
shmobile-iommu.c
shmobile-ipmmu.c
shmobile-ipmmu.h
tegra-gart.c
tegra-smmu.c