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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Adrian Huang <ahuang12@lenovo.com>,
	Joerg Roedel <jroedel@suse.de>, Sasha Levin <sashal@kernel.org>,
	iommu@lists.linux-foundation.org
Subject: [PATCH AUTOSEL 4.9 01/23] iommu/amd: Fix the configuration of GCR3 table root pointer
Date: Sat, 18 Apr 2020 10:43:43 -0400	[thread overview]
Message-ID: <20200418144405.10565-1-sashal@kernel.org> (raw)

From: Adrian Huang <ahuang12@lenovo.com>

[ Upstream commit c20f36534666e37858a14e591114d93cc1be0d34 ]

The SPA of the GCR3 table root pointer[51:31] masks 20 bits. However,
this requires 21 bits (Please see the AMD IOMMU specification).
This leads to the potential failure when the bit 51 of SPA of
the GCR3 table root pointer is 1'.

Signed-off-by: Adrian Huang <ahuang12@lenovo.com>
Fixes: 52815b75682e2 ("iommu/amd: Add support for IOMMUv2 domain mode")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/amd_iommu_types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 0d91785ebdc34..da3fbf82d1cf4 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -329,7 +329,7 @@
 
 #define DTE_GCR3_VAL_A(x)	(((x) >> 12) & 0x00007ULL)
 #define DTE_GCR3_VAL_B(x)	(((x) >> 15) & 0x0ffffULL)
-#define DTE_GCR3_VAL_C(x)	(((x) >> 31) & 0xfffffULL)
+#define DTE_GCR3_VAL_C(x)	(((x) >> 31) & 0x1fffffULL)
 
 #define DTE_GCR3_INDEX_A	0
 #define DTE_GCR3_INDEX_B	1
-- 
2.20.1


             reply	other threads:[~2020-04-18 14:47 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-18 14:43 Sasha Levin [this message]
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 02/23] watchdog: reset last_hw_keepalive time at start Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 03/23] scsi: lpfc: Fix kasan slab-out-of-bounds error in lpfc_unreg_login Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 04/23] ceph: return ceph_mdsc_do_request() errors from __get_parent() Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 05/23] ceph: don't skip updating wanted caps when cap is stale Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 06/23] pwm: rcar: Fix late Runtime PM enablement Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 07/23] ASoC: dpcm: allow start or stop during pause for backend Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 08/23] scsi: iscsi: Report unbind session event when the target has been removed Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 09/23] ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map() Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 10/23] kernel/gcov/fs.c: gcov_seq_next() should increase position index Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 11/23] ipc/util.c: sysvipc_find_ipc() " Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 12/23] KVM: s390: vsie: Fix possible race when shadowing region 3 tables Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 13/23] s390/cio: avoid duplicated 'ADD' uevents Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 14/23] pwm: renesas-tpu: Fix late Runtime PM enablement Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 15/23] pwm: bcm2835: Dynamically allocate base Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 16/23] iommu/vt-d: Silence RCU-list debugging warning in dmar_find_atsr() Sasha Levin
2020-04-18 14:43 ` [PATCH AUTOSEL 4.9 17/23] libnvdimm: Out of bounds read in __nd_ioctl() Sasha Levin
2020-04-18 14:44 ` [PATCH AUTOSEL 4.9 18/23] ocfs2: no need try to truncate file beyond i_size Sasha Levin
2020-04-18 14:44 ` [PATCH AUTOSEL 4.9 19/23] hfsplus: fix crash and filesystem corruption when deleting files Sasha Levin
2020-04-18 14:44 ` [PATCH AUTOSEL 4.9 20/23] libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set Sasha Levin
2020-04-18 14:44 ` [PATCH AUTOSEL 4.9 21/23] ALSA: ice1724: Fix invalid access for enumerated ctl items Sasha Levin
2020-04-18 14:44 ` [PATCH AUTOSEL 4.9 22/23] ALSA: hda: Fix potential access overflow in beep helper Sasha Levin
2020-04-18 14:44 ` [PATCH AUTOSEL 4.9 23/23] KVM: s390: vsie: Fix delivery of addressing exceptions Sasha Levin

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