From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
iommu@lists.linux-foundation.org, Joerg Roedel <jroedel@suse.de>,
Dave Jiang <dave.jiang@intel.com>
Subject: [PATCH AUTOSEL 5.1 10/51] iommu/vt-d: Set the right field for Page Walk Snoop
Date: Tue, 25 Jun 2019 23:40:26 -0400 [thread overview]
Message-ID: <20190626034117.23247-10-sashal@kernel.org> (raw)
In-Reply-To: <20190626034117.23247-1-sashal@kernel.org>
From: Lu Baolu <baolu.lu@linux.intel.com>
[ Upstream commit 66d78ad316b0e1ca5ae19663468554e2c0e31c26 ]
Set the page walk snoop to the right bit, otherwise the domain
id field will be overlapped.
Reported-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 6f7db75e1c469 ("iommu/vt-d: Add second level page table interface")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/intel-pasid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c
index 03b12d2ee213..fdf05c45d516 100644
--- a/drivers/iommu/intel-pasid.c
+++ b/drivers/iommu/intel-pasid.c
@@ -387,7 +387,7 @@ static inline void pasid_set_present(struct pasid_entry *pe)
*/
static inline void pasid_set_page_snoop(struct pasid_entry *pe, bool value)
{
- pasid_set_bits(&pe->val[1], 1 << 23, value);
+ pasid_set_bits(&pe->val[1], 1 << 23, value << 23);
}
/*
--
2.20.1
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prev parent reply other threads:[~2019-06-26 3:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190626034117.23247-1-sashal@kernel.org>
2019-06-26 3:40 ` [PATCH AUTOSEL 5.1 09/51] iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock Sasha Levin
2019-06-26 6:56 ` Joerg Roedel
2019-06-27 0:27 ` Sasha Levin
2019-06-26 3:40 ` Sasha Levin [this message]
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