From: Auger Eric <eric.auger@redhat.com> To: Joerg Roedel <joro@8bytes.org> Cc: drjones@redhat.com, jason@lakedaemon.net, kvm@vger.kernel.org, marc.zyngier@arm.com, punit.agrawal@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, diana.craciun@nxp.com, alex.williamson@redhat.com, pranav.sawargaonkar@gmail.com, linux-arm-kernel@lists.infradead.org, tglx@linutronix.de, robin.murphy@arm.com, christoffer.dall@linaro.org, eric.auger.pro@gmail.com Subject: Re: [RFC v2 2/8] iommu/iova: fix __alloc_and_insert_iova_range Date: Thu, 10 Nov 2016 16:41:59 +0100 [thread overview] Message-ID: <e2e328c3-ac1f-cef6-2137-660ccefda8c9@redhat.com> (raw) In-Reply-To: <20161110152241.GF2078@8bytes.org> Hi Joerg, On 10/11/2016 16:22, Joerg Roedel wrote: > On Fri, Nov 04, 2016 at 11:24:00AM +0000, Eric Auger wrote: >> Fix the size check within start_pfn and limit_pfn. >> >> Signed-off-by: Eric Auger <eric.auger@redhat.com> >> >> --- >> >> the issue was observed when playing with 1 page iova domain with >> higher iova reserved. >> --- >> drivers/iommu/iova.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c >> index e23001b..ee29dbf 100644 >> --- a/drivers/iommu/iova.c >> +++ b/drivers/iommu/iova.c >> @@ -147,7 +147,7 @@ static int __alloc_and_insert_iova_range(struct iova_domain *iovad, >> if (!curr) { >> if (size_aligned) >> pad_size = iova_get_pad_size(size, limit_pfn); >> - if ((iovad->start_pfn + size + pad_size) > limit_pfn) { >> + if ((iovad->start_pfn + size + pad_size - 1) > limit_pfn) { > > A >= check is more readable here. Sure Thanks Eric > > > Joerg > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >
WARNING: multiple messages have this Message-ID (diff)
From: eric.auger@redhat.com (Auger Eric) To: linux-arm-kernel@lists.infradead.org Subject: [RFC v2 2/8] iommu/iova: fix __alloc_and_insert_iova_range Date: Thu, 10 Nov 2016 16:41:59 +0100 [thread overview] Message-ID: <e2e328c3-ac1f-cef6-2137-660ccefda8c9@redhat.com> (raw) In-Reply-To: <20161110152241.GF2078@8bytes.org> Hi Joerg, On 10/11/2016 16:22, Joerg Roedel wrote: > On Fri, Nov 04, 2016 at 11:24:00AM +0000, Eric Auger wrote: >> Fix the size check within start_pfn and limit_pfn. >> >> Signed-off-by: Eric Auger <eric.auger@redhat.com> >> >> --- >> >> the issue was observed when playing with 1 page iova domain with >> higher iova reserved. >> --- >> drivers/iommu/iova.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c >> index e23001b..ee29dbf 100644 >> --- a/drivers/iommu/iova.c >> +++ b/drivers/iommu/iova.c >> @@ -147,7 +147,7 @@ static int __alloc_and_insert_iova_range(struct iova_domain *iovad, >> if (!curr) { >> if (size_aligned) >> pad_size = iova_get_pad_size(size, limit_pfn); >> - if ((iovad->start_pfn + size + pad_size) > limit_pfn) { >> + if ((iovad->start_pfn + size + pad_size - 1) > limit_pfn) { > > A >= check is more readable here. Sure Thanks Eric > > > Joerg > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >
next prev parent reply other threads:[~2016-11-10 15:42 UTC|newest] Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-11-04 11:23 [RFC v2 0/8] KVM PCIe/MSI passthrough on ARM/ARM64 - Alt II Eric Auger 2016-11-04 11:23 ` Eric Auger 2016-11-04 11:23 ` Eric Auger 2016-11-04 11:23 ` [RFC v2 1/8] vfio: fix vfio_info_cap_add/shift Eric Auger 2016-11-04 11:23 ` Eric Auger 2016-11-04 11:24 ` [RFC v2 2/8] iommu/iova: fix __alloc_and_insert_iova_range Eric Auger 2016-11-04 11:24 ` Eric Auger 2016-11-10 15:22 ` Joerg Roedel 2016-11-10 15:22 ` Joerg Roedel 2016-11-10 15:22 ` Joerg Roedel 2016-11-10 15:41 ` Auger Eric [this message] 2016-11-10 15:41 ` Auger Eric 2016-11-04 11:24 ` [RFC v2 3/8] iommu/dma: Allow MSI-only cookies Eric Auger 2016-11-14 12:36 ` Robin Murphy 2016-11-14 12:36 ` Robin Murphy 2016-11-14 12:36 ` Robin Murphy 2016-11-14 23:23 ` Auger Eric 2016-11-14 23:23 ` Auger Eric 2016-11-14 23:23 ` Auger Eric 2016-11-15 14:52 ` Robin Murphy 2016-11-15 14:52 ` Robin Murphy 2016-11-04 11:24 ` [RFC v2 4/8] iommu: Add a list of iommu_reserved_region in iommu_domain Eric Auger 2016-11-04 11:24 ` Eric Auger 2016-11-04 14:00 ` Robin Murphy 2016-11-04 14:00 ` Robin Murphy 2016-11-04 14:00 ` Robin Murphy 2016-11-10 11:22 ` Auger Eric 2016-11-10 11:22 ` Auger Eric 2016-11-10 11:54 ` Robin Murphy 2016-11-10 11:54 ` Robin Murphy 2016-11-10 12:14 ` Auger Eric 2016-11-10 12:14 ` Auger Eric 2016-11-10 12:48 ` Robin Murphy 2016-11-10 12:48 ` Robin Murphy 2016-11-10 12:48 ` Robin Murphy 2016-11-10 15:37 ` Joerg Roedel 2016-11-10 15:37 ` Joerg Roedel 2016-11-10 15:37 ` Joerg Roedel 2016-11-10 15:42 ` Auger Eric 2016-11-10 15:42 ` Auger Eric 2016-11-04 11:24 ` [RFC v2 5/8] vfio/type1: Introduce RESV_IOVA_RANGE capability Eric Auger 2016-11-04 11:24 ` Eric Auger 2016-11-04 11:24 ` [RFC v2 6/8] iommu: Handle the list of reserved regions Eric Auger 2016-11-04 11:24 ` [RFC v2 7/8] iommu/vt-d: Implement add_reserved_regions callback Eric Auger 2016-11-04 11:24 ` Eric Auger 2016-11-04 11:24 ` [RFC v2 8/8] iommu/arm-smmu: implement " Eric Auger 2016-11-04 11:24 ` Eric Auger 2016-11-04 14:16 ` Robin Murphy 2016-11-04 14:16 ` Robin Murphy 2016-11-10 15:46 ` Joerg Roedel 2016-11-10 15:46 ` Joerg Roedel 2016-11-10 15:46 ` Joerg Roedel 2016-11-10 15:57 ` Auger Eric 2016-11-10 15:57 ` Auger Eric 2016-11-10 15:57 ` Auger Eric 2016-11-10 16:13 ` Joerg Roedel 2016-11-10 16:13 ` Joerg Roedel 2016-11-10 18:00 ` Auger Eric 2016-11-10 18:00 ` Auger Eric 2016-11-10 18:00 ` Auger Eric 2016-11-11 11:42 ` Joerg Roedel 2016-11-11 11:42 ` Joerg Roedel 2016-11-11 11:42 ` Joerg Roedel 2016-11-11 15:47 ` Auger Eric 2016-11-11 15:47 ` Auger Eric 2016-11-11 16:22 ` Joerg Roedel 2016-11-11 16:22 ` Joerg Roedel 2016-11-11 16:45 ` Auger Eric 2016-11-11 16:45 ` Auger Eric 2016-11-11 16:45 ` Auger Eric 2016-11-14 15:31 ` Joerg Roedel 2016-11-14 15:31 ` Joerg Roedel 2016-11-14 16:08 ` Auger Eric 2016-11-14 16:08 ` Auger Eric 2016-11-14 16:20 ` Joerg Roedel 2016-11-14 16:20 ` Joerg Roedel 2016-11-14 16:20 ` Joerg Roedel 2016-11-14 16:57 ` Auger Eric 2016-11-14 16:57 ` Auger Eric 2016-11-10 16:07 ` Robin Murphy 2016-11-10 16:07 ` Robin Murphy 2016-11-10 16:07 ` Robin Murphy 2016-11-10 16:16 ` Joerg Roedel 2016-11-10 16:16 ` Joerg Roedel 2016-11-10 16:16 ` Joerg Roedel 2016-11-11 14:34 ` Robin Murphy 2016-11-11 14:34 ` Robin Murphy 2016-11-11 14:34 ` Robin Murphy 2016-11-11 15:03 ` Joerg Roedel 2016-11-11 15:03 ` Joerg Roedel 2016-11-11 15:03 ` Joerg Roedel
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