* [PATCH 1/4] arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
@ 2020-11-04 23:22 ` Konrad Dybcio
2020-11-04 23:22 ` [PATCH 2/4] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist Konrad Dybcio
` (4 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Konrad Dybcio @ 2020-11-04 23:22 UTC (permalink / raw)
To: phone-devel
Cc: ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Konrad Dybcio,
Catalin Marinas, Will Deacon, Sai Prakash Ranjan, Stephen Boyd,
Rob Herring, Marc Zyngier, Suzuki K Poulose, Steven Price,
Mark Brown, Andrew Scull, Anshuman Khandual, Amit Daniel Kachhap,
Ionela Voinescu, Kristina Martsenko, linux-arm-kernel,
linux-kernel
Add MIDR value for KRYO2XX gold (big) and silver (LITTLE)
CPU cores which are used in Qualcomm Technologies, Inc.
SoCs. This will be used to identify and apply errata
which are applicable for these CPU cores.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
---
arch/arm64/include/asm/cputype.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 9e2e9a63c7b6..ef5b040dee44 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -86,6 +86,8 @@
#define QCOM_CPU_PART_FALKOR_V1 0x800
#define QCOM_CPU_PART_FALKOR 0xC00
#define QCOM_CPU_PART_KRYO 0x200
+#define QCOM_CPU_PART_KRYO_2XX_GOLD 0x800
+#define QCOM_CPU_PART_KRYO_2XX_SILVER 0x801
#define QCOM_CPU_PART_KRYO_3XX_SILVER 0x803
#define QCOM_CPU_PART_KRYO_4XX_GOLD 0x804
#define QCOM_CPU_PART_KRYO_4XX_SILVER 0x805
@@ -116,6 +118,8 @@
#define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1)
#define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR)
#define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO)
+#define MIDR_QCOM_KRYO_2XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_2XX_GOLD)
+#define MIDR_QCOM_KRYO_2XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_2XX_SILVER)
#define MIDR_QCOM_KRYO_3XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_3XX_SILVER)
#define MIDR_QCOM_KRYO_4XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_GOLD)
#define MIDR_QCOM_KRYO_4XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_SILVER)
--
2.29.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH 2/4] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
2020-11-04 23:22 ` [PATCH 1/4] arm64: Add MIDR value for KRYO2XX gold/silver CPU cores Konrad Dybcio
@ 2020-11-04 23:22 ` Konrad Dybcio
2020-11-04 23:22 ` [PATCH 3/4] arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list Konrad Dybcio
` (3 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Konrad Dybcio @ 2020-11-04 23:22 UTC (permalink / raw)
To: phone-devel
Cc: ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Konrad Dybcio,
Catalin Marinas, Will Deacon, Sai Prakash Ranjan, Stephen Boyd,
Rob Herring, Marc Zyngier, Suzuki K Poulose, Steven Price,
Mark Brown, Andrew Scull, Anshuman Khandual, Amit Daniel Kachhap,
Ionela Voinescu, Kristina Martsenko, linux-arm-kernel,
linux-kernel, Vincenzo Frascino
QCOM KRYO2XX gold (big) silver (LITTLE) CPU cores are based on
Cortex-A73 and Cortex-A53 respectively and are meltdown safe,
hence add them to kpti_safe_list[].
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
---
arch/arm64/kernel/cpufeature.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index dcc165b3fc04..6f36c4f62f69 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1337,6 +1337,8 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_GOLD),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
{ /* sentinel */ }
--
2.29.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH 3/4] arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
2020-11-04 23:22 ` [PATCH 1/4] arm64: Add MIDR value for KRYO2XX gold/silver CPU cores Konrad Dybcio
2020-11-04 23:22 ` [PATCH 2/4] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist Konrad Dybcio
@ 2020-11-04 23:22 ` Konrad Dybcio
2020-11-04 23:22 ` [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver Konrad Dybcio
` (2 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Konrad Dybcio @ 2020-11-04 23:22 UTC (permalink / raw)
To: phone-devel
Cc: ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Konrad Dybcio,
Catalin Marinas, Will Deacon, Sai Prakash Ranjan, Stephen Boyd,
Rob Herring, Marc Zyngier, Suzuki K Poulose, Steven Price,
Mark Brown, Andrew Scull, Anshuman Khandual, Amit Daniel Kachhap,
Ionela Voinescu, Kristina Martsenko, linux-arm-kernel,
linux-kernel
KRYO2XX silver (LITTLE) CPUs are based on Cortex-A53
and they are not affected by spectre-v2.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
---
arch/arm64/kernel/proton-pack.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index c18eb7d41274..f6e4e3737405 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -118,6 +118,7 @@ static enum mitigation_state spectre_v2_get_cpu_hw_mitigation_state(void)
MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
{ /* sentinel */ }
--
2.29.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
` (2 preceding siblings ...)
2020-11-04 23:22 ` [PATCH 3/4] arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list Konrad Dybcio
@ 2020-11-04 23:22 ` Konrad Dybcio
2020-11-05 9:29 ` Marc Zyngier
2020-11-05 9:33 ` [PATCH 0/4] Add KRYO2XX Errata / mitigations data Will Deacon
2020-11-13 11:27 ` Will Deacon
5 siblings, 1 reply; 13+ messages in thread
From: Konrad Dybcio @ 2020-11-04 23:22 UTC (permalink / raw)
To: phone-devel
Cc: ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Konrad Dybcio,
Catalin Marinas, Will Deacon, Sai Prakash Ranjan, Stephen Boyd,
Rob Herring, Marc Zyngier, Suzuki K Poulose, Steven Price,
Mark Brown, Andrew Scull, Anshuman Khandual, Amit Daniel Kachhap,
Ionela Voinescu, Kristina Martsenko, linux-arm-kernel,
linux-kernel
QCOM KRYO2XX Silver cores are Cortex-A53 based and are
susceptible to the 845719 erratum. Add them to the lookup
list to apply the erratum.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
---
arch/arm64/kernel/cpu_errata.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 61314fd70f13..cafaf0da05b7 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -299,6 +299,8 @@ static const struct midr_range erratum_845719_list[] = {
MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
/* Brahma-B53 r0p[0] */
MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
+ /* Kryo2XX Silver rAp4 */
+ MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
{},
};
#endif
--
2.29.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
2020-11-04 23:22 ` [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver Konrad Dybcio
@ 2020-11-05 9:29 ` Marc Zyngier
2020-11-05 11:24 ` Konrad Dybcio
2020-11-09 9:36 ` Sai Prakash Ranjan
0 siblings, 2 replies; 13+ messages in thread
From: Marc Zyngier @ 2020-11-05 9:29 UTC (permalink / raw)
To: Konrad Dybcio
Cc: phone-devel, ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Catalin Marinas,
Will Deacon, Sai Prakash Ranjan, Stephen Boyd, Rob Herring,
Suzuki K Poulose, Steven Price, Mark Brown, Andrew Scull,
Anshuman Khandual, Amit Daniel Kachhap, Ionela Voinescu,
Kristina Martsenko, linux-arm-kernel, linux-kernel
On 2020-11-04 23:22, Konrad Dybcio wrote:
> QCOM KRYO2XX Silver cores are Cortex-A53 based and are
> susceptible to the 845719 erratum. Add them to the lookup
> list to apply the erratum.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> ---
> arch/arm64/kernel/cpu_errata.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/kernel/cpu_errata.c
> b/arch/arm64/kernel/cpu_errata.c
> index 61314fd70f13..cafaf0da05b7 100644
> --- a/arch/arm64/kernel/cpu_errata.c
> +++ b/arch/arm64/kernel/cpu_errata.c
> @@ -299,6 +299,8 @@ static const struct midr_range
> erratum_845719_list[] = {
> MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
> /* Brahma-B53 r0p[0] */
> MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
> + /* Kryo2XX Silver rAp4 */
> + MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
Is this the only affected version? If this is actually an A53, how do
the
revisions map between Kryo and Cortex cores?
M.
--
Jazz is not dead. It just smells funny...
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
2020-11-05 9:29 ` Marc Zyngier
@ 2020-11-05 11:24 ` Konrad Dybcio
2020-11-09 9:36 ` Sai Prakash Ranjan
1 sibling, 0 replies; 13+ messages in thread
From: Konrad Dybcio @ 2020-11-05 11:24 UTC (permalink / raw)
To: Marc Zyngier
Cc: phone-devel, ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Catalin Marinas,
Will Deacon, Sai Prakash Ranjan, Stephen Boyd, Rob Herring,
Suzuki K Poulose, Steven Price, Mark Brown, Andrew Scull,
Anshuman Khandual, Amit Daniel Kachhap, Ionela Voinescu,
Kristina Martsenko, linux-arm-kernel, linux-kernel
> Is this the only affected version? If this is actually an A53, how do the
> revisions map between Kryo and Cortex cores?
Hi,
sadly, I do not have access to such information. Only this specific revision has been marked as affected in the BSP kernel.
Konrad
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
2020-11-05 9:29 ` Marc Zyngier
2020-11-05 11:24 ` Konrad Dybcio
@ 2020-11-09 9:36 ` Sai Prakash Ranjan
2020-11-09 19:28 ` Konrad Dybcio
1 sibling, 1 reply; 13+ messages in thread
From: Sai Prakash Ranjan @ 2020-11-09 9:36 UTC (permalink / raw)
To: Marc Zyngier, Konrad Dybcio
Cc: phone-devel, ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Catalin Marinas,
Will Deacon, Stephen Boyd, Rob Herring, Suzuki K Poulose,
Steven Price, Mark Brown, Andrew Scull, Anshuman Khandual,
Amit Daniel Kachhap, Ionela Voinescu, Kristina Martsenko,
linux-arm-kernel, linux-kernel
Hi Marc,
On 2020-11-05 14:59, Marc Zyngier wrote:
> On 2020-11-04 23:22, Konrad Dybcio wrote:
>> QCOM KRYO2XX Silver cores are Cortex-A53 based and are
>> susceptible to the 845719 erratum. Add them to the lookup
>> list to apply the erratum.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
>> ---
>> arch/arm64/kernel/cpu_errata.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/kernel/cpu_errata.c
>> b/arch/arm64/kernel/cpu_errata.c
>> index 61314fd70f13..cafaf0da05b7 100644
>> --- a/arch/arm64/kernel/cpu_errata.c
>> +++ b/arch/arm64/kernel/cpu_errata.c
>> @@ -299,6 +299,8 @@ static const struct midr_range
>> erratum_845719_list[] = {
>> MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
>> /* Brahma-B53 r0p[0] */
>> MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
>> + /* Kryo2XX Silver rAp4 */
>> + MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
>
> Is this the only affected version? If this is actually an A53, how do
> the
> revisions map between Kryo and Cortex cores?
>
From what I see from the docs, this is the only version used
in MSM8998(silver cores are based on Cortex A53) and it maps
to r0p4. @Konrad, can you include (rap4 => r0p4) in comment.
Thanks,
Sai
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a
member
of Code Aurora Forum, hosted by The Linux Foundation
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
2020-11-09 9:36 ` Sai Prakash Ranjan
@ 2020-11-09 19:28 ` Konrad Dybcio
2020-11-10 5:56 ` Sai Prakash Ranjan
0 siblings, 1 reply; 13+ messages in thread
From: Konrad Dybcio @ 2020-11-09 19:28 UTC (permalink / raw)
To: Sai Prakash Ranjan, Marc Zyngier
Cc: phone-devel, ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Catalin Marinas,
Will Deacon, Stephen Boyd, Rob Herring, Suzuki K Poulose,
Steven Price, Mark Brown, Andrew Scull, Anshuman Khandual,
Amit Daniel Kachhap, Ionela Voinescu, Kristina Martsenko,
linux-arm-kernel, linux-kernel
> From what I see from the docs, this is the only version used
> in MSM8998(silver cores are based on Cortex A53) and it maps
> to r0p4. @Konrad, can you include (rap4 => r0p4) in comment.
Hi,
Thanks for looking into it. Could you perhaps check if it's also the case on sdm630/636/660?
Konrad
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
2020-11-09 19:28 ` Konrad Dybcio
@ 2020-11-10 5:56 ` Sai Prakash Ranjan
0 siblings, 0 replies; 13+ messages in thread
From: Sai Prakash Ranjan @ 2020-11-10 5:56 UTC (permalink / raw)
To: Konrad Dybcio
Cc: Marc Zyngier, phone-devel, ~postmarketos/upstreaming,
martin.botka, angelogioacchino.delregno, marijn.suijten,
Catalin Marinas, Will Deacon, Stephen Boyd, Rob Herring,
Suzuki K Poulose, Steven Price, Mark Brown, Andrew Scull,
Anshuman Khandual, Amit Daniel Kachhap, Ionela Voinescu,
Kristina Martsenko, linux-arm-kernel, linux-kernel
Hi,
On 2020-11-10 00:58, Konrad Dybcio wrote:
>> From what I see from the docs, this is the only version used
>> in MSM8998(silver cores are based on Cortex A53) and it maps
>> to r0p4. @Konrad, can you include (rap4 => r0p4) in comment.
>
>
> Hi,
>
> Thanks for looking into it. Could you perhaps check if it's also the
> case on sdm630/636/660?
>
Yes I checked with CPU team now and its the same.
Thanks,
Sai
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a
member
of Code Aurora Forum, hosted by The Linux Foundation
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 0/4] Add KRYO2XX Errata / mitigations data
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
` (3 preceding siblings ...)
2020-11-04 23:22 ` [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver Konrad Dybcio
@ 2020-11-05 9:33 ` Will Deacon
2020-11-10 7:00 ` Sai Prakash Ranjan
2020-11-13 11:27 ` Will Deacon
5 siblings, 1 reply; 13+ messages in thread
From: Will Deacon @ 2020-11-05 9:33 UTC (permalink / raw)
To: Konrad Dybcio, Jeffrey Hugo
Cc: phone-devel, ~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Catalin Marinas,
Sai Prakash Ranjan, Stephen Boyd, Rob Herring, Marc Zyngier,
Suzuki K Poulose, Steven Price, Mark Brown, Andrew Scull,
Anshuman Khandual, Amit Daniel Kachhap, Ionela Voinescu,
Kristina Martsenko, linux-arm-kernel, linux-kernel
Hi Konrad,
[+Jeffrey]
On Thu, Nov 05, 2020 at 12:22:09AM +0100, Konrad Dybcio wrote:
> This series adds Spectre mitigations and errata data for
> Qualcomm KRYO2XX Gold (big) and Silver (LITTLE) series of
> CPU cores, used for example in MSM8998 and SDM660-series SoCs.
>
> Konrad Dybcio (4):
> arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
> arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
> arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
> arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
This mostly looks fine to me, but I've added Jeffrey to check the MIDRs
because he's my go-to person for the Qualcomm numbering scheme.
Jeffrey -- please can you check these patches [1], especially the last patch
which has some cryptic revision number in there too?
Cheers,
Will
[1] http://lkml.kernel.org/r/20201104232218.198800-1-konrad.dybcio@somainline.org
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH 0/4] Add KRYO2XX Errata / mitigations data
2020-11-05 9:33 ` [PATCH 0/4] Add KRYO2XX Errata / mitigations data Will Deacon
@ 2020-11-10 7:00 ` Sai Prakash Ranjan
0 siblings, 0 replies; 13+ messages in thread
From: Sai Prakash Ranjan @ 2020-11-10 7:00 UTC (permalink / raw)
To: Will Deacon
Cc: Konrad Dybcio, Jeffrey Hugo, phone-devel,
~postmarketos/upstreaming, martin.botka,
angelogioacchino.delregno, marijn.suijten, Catalin Marinas,
Stephen Boyd, Rob Herring, Marc Zyngier, Suzuki K Poulose,
Steven Price, Mark Brown, Andrew Scull, Anshuman Khandual,
Amit Daniel Kachhap, Ionela Voinescu, Kristina Martsenko,
linux-arm-kernel, linux-kernel
On 2020-11-05 15:03, Will Deacon wrote:
> Hi Konrad,
>
> [+Jeffrey]
>
> On Thu, Nov 05, 2020 at 12:22:09AM +0100, Konrad Dybcio wrote:
>> This series adds Spectre mitigations and errata data for
>> Qualcomm KRYO2XX Gold (big) and Silver (LITTLE) series of
>> CPU cores, used for example in MSM8998 and SDM660-series SoCs.
>>
>> Konrad Dybcio (4):
>> arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
>> arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
>> arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
>> arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
>
> This mostly looks fine to me, but I've added Jeffrey to check the MIDRs
> because he's my go-to person for the Qualcomm numbering scheme.
>
> Jeffrey -- please can you check these patches [1], especially the last
> patch
> which has some cryptic revision number in there too?
Jeffrey can confirm this, but the MIDR is right and the cryptic revision
maps to cortex r0p4.
Thanks,
Sai
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a
member
of Code Aurora Forum, hosted by The Linux Foundation
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 0/4] Add KRYO2XX Errata / mitigations data
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
` (4 preceding siblings ...)
2020-11-05 9:33 ` [PATCH 0/4] Add KRYO2XX Errata / mitigations data Will Deacon
@ 2020-11-13 11:27 ` Will Deacon
5 siblings, 0 replies; 13+ messages in thread
From: Will Deacon @ 2020-11-13 11:27 UTC (permalink / raw)
To: Konrad Dybcio, phone-devel
Cc: catalin.marinas, kernel-team, Will Deacon, Steven Price,
Ionela Voinescu, linux-kernel, angelogioacchino.delregno,
Kristina Martsenko, martin.botka, Sai Prakash Ranjan,
Stephen Boyd, Marc Zyngier, marijn.suijten, Mark Brown,
Amit Daniel Kachhap, Suzuki K Poulose, Andrew Scull,
~postmarketos/upstreaming, linux-arm-kernel, Rob Herring,
Anshuman Khandual
On Thu, 5 Nov 2020 00:22:09 +0100, Konrad Dybcio wrote:
> This series adds Spectre mitigations and errata data for
> Qualcomm KRYO2XX Gold (big) and Silver (LITTLE) series of
> CPU cores, used for example in MSM8998 and SDM660-series SoCs.
>
> Konrad Dybcio (4):
> arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
> arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
> arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
> arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
>
> [...]
Applied to arm64 (for-next/fixes), thanks!
[1/4] arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
https://git.kernel.org/arm64/c/77473cffef21
[2/4] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
https://git.kernel.org/arm64/c/e3dd11a9f252
[3/4] arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
https://git.kernel.org/arm64/c/38328d401167
[4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
https://git.kernel.org/arm64/c/23c216416056
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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