* [PATCH AUTOSEL 5.4 02/26] EDAC/ti: Add missing MODULE_DEVICE_TABLE
[not found] <20210705153039.1521781-1-sashal@kernel.org>
@ 2021-07-05 15:30 ` Sasha Levin
2021-07-05 15:30 ` [PATCH AUTOSEL 5.4 17/26] EDAC/Intel: Do not load EDAC driver when running as a guest Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2021-07-05 15:30 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Bixuan Cui, Hulk Robot, Borislav Petkov, Tero Kristo,
Sasha Levin, linux-edac
From: Bixuan Cui <cuibixuan@huawei.com>
[ Upstream commit 0a37f32ba5272b2d4ec8c8d0f6b212b81b578f7e ]
The module misses MODULE_DEVICE_TABLE() for of_device_id tables and thus
never autoloads on ID matches.
Add the missing declaration.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tero Kristo <kristo@kernel.org>
Link: https://lkml.kernel.org/r/20210512033727.26701-1-cuibixuan@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/edac/ti_edac.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/edac/ti_edac.c b/drivers/edac/ti_edac.c
index 324768946743..9ab9fa0a911b 100644
--- a/drivers/edac/ti_edac.c
+++ b/drivers/edac/ti_edac.c
@@ -197,6 +197,7 @@ static const struct of_device_id ti_edac_of_match[] = {
{ .compatible = "ti,emif-dra7xx", .data = (void *)EMIF_TYPE_DRA7 },
{},
};
+MODULE_DEVICE_TABLE(of, ti_edac_of_match);
static int _emif_get_id(struct device_node *node)
{
--
2.30.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH AUTOSEL 5.4 17/26] EDAC/Intel: Do not load EDAC driver when running as a guest
[not found] <20210705153039.1521781-1-sashal@kernel.org>
2021-07-05 15:30 ` [PATCH AUTOSEL 5.4 02/26] EDAC/ti: Add missing MODULE_DEVICE_TABLE Sasha Levin
@ 2021-07-05 15:30 ` Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2021-07-05 15:30 UTC (permalink / raw)
To: linux-kernel, stable; +Cc: Luck, Tony, Borislav Petkov, Sasha Levin, linux-edac
From: "Luck, Tony" <tony.luck@intel.com>
[ Upstream commit f0a029fff4a50eb01648810a77ba1873e829fdd4 ]
There's little to no point in loading an EDAC driver running in a guest:
1) The CPU model reported by CPUID may not represent actual h/w
2) The hypervisor likely does not pass in access to memory controller devices
3) Hypervisors generally do not pass corrected error details to guests
Add a check in each of the Intel EDAC drivers for X86_FEATURE_HYPERVISOR
and simply return -ENODEV in the init routine.
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20210615174419.GA1087688@agluck-desk2.amr.corp.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/edac/i10nm_base.c | 3 +++
drivers/edac/pnd2_edac.c | 3 +++
drivers/edac/sb_edac.c | 3 +++
drivers/edac/skx_base.c | 3 +++
4 files changed, 12 insertions(+)
diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c
index dfcde7ed9500..f72be5f94e6f 100644
--- a/drivers/edac/i10nm_base.c
+++ b/drivers/edac/i10nm_base.c
@@ -249,6 +249,9 @@ static int __init i10nm_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(i10nm_cpuids);
if (!id)
return -ENODEV;
diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index dac45e2071b3..e054eb038903 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -1555,6 +1555,9 @@ static int __init pnd2_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(pnd2_cpuids);
if (!id)
return -ENODEV;
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index b557a53c75c4..d39f5bfb8bd9 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -3512,6 +3512,9 @@ static int __init sbridge_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(sbridge_cpuids);
if (!id)
return -ENODEV;
diff --git a/drivers/edac/skx_base.c b/drivers/edac/skx_base.c
index 77cd370bd62f..b1d717cb8df9 100644
--- a/drivers/edac/skx_base.c
+++ b/drivers/edac/skx_base.c
@@ -605,6 +605,9 @@ static int __init skx_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(skx_cpuids);
if (!id)
return -ENODEV;
--
2.30.2
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