Christophe JAILLET writes:
> Le 03/07/2023 à 07:26, Michael Ellerman a écrit :
>> On Sun, 19 Mar 2023 09:59:31 -0500, Rob Herring wrote:
>>> Replace open coded reading of CPU nodes' "reg" properties with
>>> of_get_cpu_hwid() dedicated for this purpose.
>>>
>>>
>>
>> Applied to powerpc/next.
>>
Mahesh Salgaonkar writes:
> rtas_generic_errno() function will convert the generic rtas return codes
> into errno.
I don't see the point of renaming it, it just creates unnecessary churn.
The existing name seems OK to me.
...
> diff --git a/arch/powerpc/include/asm/rtas.h
successfully.
More configs may be tested in the coming days.
tested configs:
alphaallyesconfig gcc
alpha defconfig gcc
alpharandconfig-r001-20230814 gcc
alpharandconfig-r003-20230814 gcc
alpha
On 2023/8/15 1:30, Jason Gunthorpe wrote:
On Mon, Aug 14, 2023 at 04:43:23PM +0800, Baolu Lu wrote:
This is on github:https://github.com/jgunthorpe/linux/commits/iommu_all_defdom
It seems that after this series, all ARM iommu drivers are able to
support the IDENTITY default domain, hence
On 2023/8/15 1:25, Jason Gunthorpe wrote:
Ah, I went over all this again and decided to try again, it is too
complicated. This patch can do what the commit message says and the
following patches are even simpler:
Yes. This method is more concise. Some nits below.
/*
* Combine the driver's
configs may be tested in the coming days.
tested configs:
alphaallyesconfig gcc
alpha defconfig gcc
alpharandconfig-r001-20230814 gcc
alpharandconfig-r004-20230814 gcc
alpha
built successfully.
More configs may be tested in the coming days.
tested configs:
alphaallyesconfig gcc
alpha defconfig gcc
alpharandconfig-r001-20230814 gcc
alpharandconfig-r004-20230814 gcc
have been built successfully.
More configs may be tested in the coming days.
tested configs:
alphaallyesconfig gcc
alpha defconfig gcc
alpharandconfig-r001-20230814 gcc
alpharandconfig-r004-20230814
On 2023/8/14 23:36, Jason Gunthorpe wrote:
On Mon, Aug 14, 2023 at 02:32:33PM +0800, Baolu Lu wrote:
+ pm_runtime_get_sync(qcom_iommu->dev);
+ for (i = 0; i < fwspec->num_ids; i++) {
+ struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain,
fwspec->ids[i]);
+
+
On 2023/8/14 22:34, Jason Gunthorpe wrote:
@@ -443,7 +459,7 @@ static int mtk_iommu_v1_create_mapping(struct device *dev,
struct of_phandle_arg
static int mtk_iommu_v1_def_domain_type(struct device *dev)
{
- return IOMMU_DOMAIN_UNMANAGED;
+ return IOMMU_DOMAIN_IDENTITY;
On Fri, Jul 14, 2023 at 11:46:16AM -0600, Rob Herring wrote:
> The DT of_device.h and of_platform.h date back to the separate
> of_platform_bus_type before it as merged into the regular platform bus.
> As part of that merge prepping Arm DT support 13 years ago, they
> "temporarily" include each
On 7/19/2023 7:44 AM, Sean Christopherson wrote:
From: Chao Peng
In confidential computing usages, whether a page is private or shared is
necessary information for KVM to perform operations like page fault
handling, page zapping etc. There are other potential use cases for
per-page memory
On Wed, Aug 02, 2023 at 09:08:02PM -0300, Jason Gunthorpe wrote:
> I've avoided doing this because there is no way to make this happen
> without an intrusion into the core code. Up till now this has avoided
> needing the core code's probe path with some hackery - but now that
> default domains are
On Fri, Aug 11, 2023 at 09:19:20PM +, Justin Stitt wrote:
> This approach tries to use `make_field` inside of `make_first_field`.
> This comes with some weird implementation as to get the same result we
> need to first subtract `index` from the `make_field` result whilst being
> careful with
On Mon, Aug 14, 2023, Binbin Wu wrote:
>
> On 7/19/2023 7:44 AM, Sean Christopherson wrote:
> > + struct kvm_mmu_notifier_range post_set_range = {
> > + .start = start,
> > + .end = end,
> > + .arg.attributes = attributes,
> > + .handler =
On Wed, Jul 12, 2023 at 6:42 AM Hugh Dickins wrote:
> Bring collapse_and_free_pmd() back into collapse_pte_mapped_thp().
> It does need mmap_read_lock(), but it does not need mmap_write_lock(),
> nor vma_start_write() nor i_mmap lock nor anon_vma lock. All racing
> paths are relying on
On Mon, Aug 14, 2023 at 2:37 PM Michael Ellerman wrote:
> > +static inline const void *pfn_to_kaddr(unsigned long pfn)
> > +{
> > + return (const void *)(((unsigned long)__va(pfn)) << PAGE_SHIFT);
>
> Any reason to do it this way rather than:
>
> + return __va(pfn << PAGE_SHIFT);
>
>
On Sun Aug 13, 2023 at 5:15 AM EEST, Nayna Jain wrote:
> On secure boot enabled PowerVM LPAR, third party code signing keys are
> needed during early boot to verify signed third party modules. These
> third party keys are stored in moduledb object in the Platform
> KeyStore(PKS).
>
> Load third
On Sun Aug 13, 2023 at 5:15 AM EEST, Nayna Jain wrote:
> On non-UEFI platforms, handle restrict_link_by_ca failures differently.
>
> Certificates which do not satisfy CA restrictions on non-UEFI platforms
> are ignored.
>
> Signed-off-by: Nayna Jain
> Reviewed-and-tested-by: Mimi Zohar
> ---
>
On Sun Aug 13, 2023 at 5:15 AM EEST, Nayna Jain wrote:
> Keys that derive their trust from an entity such as a security officer,
> administrator, system owner, or machine owner are said to have "imputed
> trust". CA keys with imputed trust can be loaded onto the machine keyring.
> The mechanism
On Mon, Aug 14, 2023 at 04:43:23PM +0800, Baolu Lu wrote:
> > This is on
> > github:https://github.com/jgunthorpe/linux/commits/iommu_all_defdom
>
> It seems that after this series, all ARM iommu drivers are able to
> support the IDENTITY default domain, hence perhaps we can remove below
>
On Mon, 14 Aug 2023 09:40:44 +
Christophe Leroy wrote:
> Interesting. That means we get stuck somewhere around MMU_init()
>
> We know that MMU_init_hw() is called and runs at least until:
>
> pr_info("Total memory = %lldMB; using %ldkB for hash table\n",
> (unsigned
On Sat, Aug 12, 2023 at 10:15:42AM +0800, Baolu Lu wrote:
>
> How about consolidating above into a single helper?
>
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -1787,6 +1787,21 @@ __iommu_group_alloc_default_domain(struct iommu_group
> *group, int req_type)
> return
On Mon, Aug 14, 2023 at 02:58:14PM +0800, Baolu Lu wrote:
> > diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
> > index 0bf08b120cf105..056832a367c2af 100644
> > --- a/drivers/iommu/sun50i-iommu.c
> > +++ b/drivers/iommu/sun50i-iommu.c
> > @@ -667,14 +667,11 @@ static
On Sat, Aug 12, 2023 at 5:45 PM David Heidelberg wrote:
>
> Tested-by: David Heidelberg
Thanks David!
> For PATCH v4 please fix the typo reported by the bot :)
Sorry - I'll do that today.
> Seeing messages as
>
> __aer_print_error: 72 callbacks suppressed
>
> but it still prints many errors
On Mon, Aug 14, 2023 at 02:44:50PM +0800, Baolu Lu wrote:
> On 2023/8/3 8:08, Jason Gunthorpe wrote:
> > Prior to commit 1b932ceddd19 ("iommu: Remove detach_dev callbacks") the
> > sun50i_iommu_detach_device() function was being called by
> > ops->detach_dev().
> >
> > This is an IDENTITY domain
On Mon, Aug 14, 2023 at 02:32:33PM +0800, Baolu Lu wrote:
> > + pm_runtime_get_sync(qcom_iommu->dev);
> > + for (i = 0; i < fwspec->num_ids; i++) {
> > + struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain,
> > fwspec->ids[i]);
> > +
> > + /* Disable the context bank: */
> >
On Mon, Aug 14, 2023 at 01:08:39PM +0800, Baolu Lu wrote:
> > @@ -989,6 +989,12 @@ static int tegra_smmu_def_domain_type(struct device
> > *dev)
> > }
> > static const struct iommu_ops tegra_smmu_ops = {
> > + /*
> > +* FIXME: For now we want to run all translation in IDENTITY mode,
>
On Mon, Aug 14, 2023 at 11:06:12AM +0800, Baolu Lu wrote:
> On 2023/8/3 8:07, Jason Gunthorpe wrote:
> > What mtk does during mtk_iommu_v1_set_platform_dma() is actually putting
> > the iommu into identity mode. Make this available as a proper IDENTITY
> > domain.
> >
> > The
Le 14/08/2023 à 14:37, Michael Ellerman a écrit :
> Linus Walleij writes:
>> Making virt_to_pfn() a static inline taking a strongly typed
>> (const void *) makes the contract of a passing a pointer of that
>> type to the function explicit and exposes any misuse of the
>> macro virt_to_pfn()
On Sat, Aug 12, 2023 at 09:41:50AM +0800, Baolu Lu wrote:
> > index e05c93b6c37fba..87aebba474e093 100644
> > --- a/include/linux/iommu.h
> > +++ b/include/linux/iommu.h
> > @@ -64,6 +64,7 @@ struct iommu_domain_geometry {
> > #define __IOMMU_DOMAIN_DMA_FQ (1U << 3) /* DMA-API uses flush
On Sun, Aug 13, 2023 at 08:11:30PM +0800, Baolu Lu wrote:
> On 2023/8/12 19:28, Jason Gunthorpe wrote:
> > On Sat, Aug 12, 2023 at 09:36:33AM +0800, Baolu Lu wrote:
> > > > @@ -290,6 +295,7 @@ struct iommu_ops {
> > > > unsigned long pgsize_bitmap;
> > > > struct module *owner;
> >
On Mon, Aug 14, 2023 at 12:52:34PM +0800, Baolu Lu wrote:
> On 2023/8/3 8:07, Jason Gunthorpe wrote:
> > What exynos calls exynos_iommu_detach_device is actually putting the iommu
> > into identity mode.
> >
> > Move to the new core support for ARM_DMA_USE_IOMMU by defining
> >
Linus Walleij writes:
> Making virt_to_pfn() a static inline taking a strongly typed
> (const void *) makes the contract of a passing a pointer of that
> type to the function explicit and exposes any misuse of the
> macro virt_to_pfn() acting polymorphic and accepting many types
> such as (void
Justin Stitt writes:
> On Fri, Aug 11, 2023 at 2:19 PM Justin Stitt wrote:
>>
>> Within this RFC-series I want to get some comments on two ideas that I
>> have for refactoring the current `strncpy` usage in repository.c.
>>
>> When looking at `make_first_field` we see a u64 is being used to
Justin Stitt writes:
> This approach simply replicates the implementation of `make_field` which
> means we drop `strncpy` for `memcpy`.
>
> Signed-off-by: Justin Stitt
> ---
> arch/powerpc/platforms/ps3/repository.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git
Update JSON/events for power10 platform with additional metrics.
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power10/metrics.json | 33 +++
1 file changed, 33 insertions(+)
diff --git a/tools/perf/pmu-events/arch/powerpc/power10/metrics.json
Update metric event name for some of the JSON/metric events for
power10 platform.
Fixes: 3ca3af7d1f23 ("perf vendor events power10: Add metric events JSON file
for power10 platform")
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power10/metrics.json | 50 +--
1 file
Move some of the power10 JSON/events to appropriate files.
Fixes: 32daa5d7899e ("perf vendor events: Initial JSON/events list for power10
platform")
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power10/cache.json | 45
.../arch/powerpc/power10/floating_point.json | 67 +
Update JSON/events for power10 platform with additional events.
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power10/frontend.json| 25 +
.../arch/powerpc/power10/marked.json | 30
.../arch/powerpc/power10/memory.json | 10 ++
Drop STORES_PER_INST metric event for the power10 platform, as the
metric expression of STORES_PER_INST metric event using dropped event
PM_ST_FIN.
Fixes: 3ca3af7d1f23 ("perf vendor events power10: Add metric events JSON file
for power10 platform")
Signed-off-by: Kajol Jain
---
Drop some of the JSON/events for power10 platform due to counter
data mismatch.
Fixes: 32daa5d7899e ("perf vendor events: Initial JSON/events list for power10
platform")
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power10/floating_point.json | 7 ---
Update the description for some of the JSON/events for power10 platform.
Fixes: 32daa5d7899e ("perf vendor events: Initial JSON/events list for power10
platform")
Signed-off-by: Kajol Jain
---
.../arch/powerpc/power10/cache.json | 4 +-
.../arch/powerpc/power10/frontend.json
* Laurent Dufour [2023-07-05 16:51:43]:
> From: Michael Ellerman
>
> Integrate with the generic SMT support, so that when a CPU is DLPAR
> onlined it is brought up with the correct SMT mode.
>
Looks good to me.
Reviewed-by: Srikar Dronamraju
> Signed-off-by: Michael Ellerman
> ---
>
* Laurent Dufour [2023-07-05 16:51:42]:
> From: Michael Ellerman
>
> Add support for HOTPLUG_SMT, which enables the generic sysfs SMT support
> files in /sys/devices/system/cpu/smt, as well as the "nosmt" boot
> parameter.
>
> Implement the recently added hooks to allow partial SMT states,
* Laurent Dufour [2023-07-05 16:51:41]:
> From: Michael Ellerman
>
> As part of the generic HOTPLUG_SMT code, there is support for disabling
> secondary SMT threads at boot time, by passing "nosmt" on the kernel
> command line.
>
> The way that is implemented is the secondary threads are
On 27/06/2023 00.34, Sean Christopherson wrote:
On Fri, Jun 23, 2023, Thomas Huth wrote:
On 23/06/2023 16.24, Sean Christopherson wrote:
On Fri, Jun 23, 2023, Thomas Huth wrote:
Newer versions of ld (from binutils 2.40) complain on s390x and x86:
ld: warning: s390x/cpu.o: missing
Le 13/08/2023 à 21:38, Erhard Furtner a écrit :
> On Fri, 11 Aug 2023 06:45:14 +
> Christophe Leroy wrote:
>
>> Le 11/08/2023 à 01:48, Erhard Furtner a écrit :
>>> I wanted to fire up my PowerMac G4 MDD (Dual CPU) with a KASAN debug build
>>> of kernel 6.5-rc5 for testing purposes. But
On 2023/8/3 8:07, Jason Gunthorpe wrote:
[ It would be good to get this in linux-next, we have some good test
coverage on the ARM side already, thanks! ]
It has been a long time coming, this series completes the default_domain
transition and makes it so that the core IOMMU code will always have
Le 14/08/2023 à 08:24, Nicholas Piggin a écrit :
> On Wed Aug 9, 2023 at 6:01 PM AEST, Christophe Leroy wrote:
>> With skiboot_defconfig, Clang reports:
>>
>>CC arch/powerpc/mm/book3s64/radix_tlb.o
>> arch/powerpc/mm/book3s64/radix_tlb.c:419:20: error: unused function
>>
On Mon Aug 7, 2023 at 11:45 AM AEST, Jordan Niethe wrote:
> More "wrapper" style accessor generating macros will be introduced for
> the nestedv2 guest support. Rename the existing macros with more
> descriptive names now so there is a consistent naming convention.
>
> Signed-off-by: Jordan Niethe
From: Jordan Niethe
> Sent: 07 August 2023 02:46
>
> The LPID register is 32 bits long. The host keeps the lpids for each
> guest in an unsigned word struct kvm_arch. Currently, LPIDs are already
> limited by mmu_lpid_bits and KVM_MAX_NESTED_GUESTS_SHIFT.
>
> The nestedv2 API returns a 64 bit
On Mon Aug 7, 2023 at 11:45 AM AEST, Jordan Niethe wrote:
> The LPID register is 32 bits long. The host keeps the lpids for each
> guest in an unsigned word struct kvm_arch. Currently, LPIDs are already
> limited by mmu_lpid_bits and KVM_MAX_NESTED_GUESTS_SHIFT.
>
> The nestedv2 API returns a 64
On Mon Aug 7, 2023 at 11:45 AM AEST, Jordan Niethe wrote:
> There are already some getter and setter functions used for accessing
> vcpu register state, e.g. kvmppc_get_pc(). There are also more
> complicated examples that are generated by macros like
> kvmppc_get_sprg0() which are generated by
On Fri, 2023-08-11 at 18:20 +0800, Zheng Zengkai wrote:
> PCI core API pci_dev_id() can be used to get the BDF number for a pci
> device. We don't need to compose it mannually. Use pci_dev_id() to
> simplify the code a little bit.
>
> Signed-off-by: Zheng Zengkai
Acked-by: Andrew Donnellan
--
On 2023/8/3 8:08, Jason Gunthorpe wrote:
These drivers don't support IOMMU_DOMAIN_DMA, so this commit effectively
allows them to support that mode.
The prior work to require default_domains makes this safe because every
one of these drivers is either compilation incompatible with dma-iommu.c,
On 2023/8/3 8:08, Jason Gunthorpe wrote:
These drivers are all trivially converted since the function is only
called if the domain type is going to be
IOMMU_DOMAIN_UNMANAGED/DMA.
Tested-by: Heiko Stuebner
Tested-by: Steven Price
Tested-by: Marek Szyprowski
Tested-by: Nicolin Chen
On 2023/8/3 8:08, Jason Gunthorpe wrote:
Prior to commit 1b932ceddd19 ("iommu: Remove detach_dev callbacks") the
sun50i_iommu_detach_device() function was being called by
ops->detach_dev().
This is an IDENTITY domain so convert sun50i_iommu_detach_device() into
sun50i_iommu_identity_attach()
On 2023/8/3 8:08, Jason Gunthorpe wrote:
This brings back the ops->detach_dev() code that commit
1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
into an IDENTITY domain.
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/mtk_iommu.c | 23 +++
1 file
On 2023/8/3 8:08, Jason Gunthorpe wrote:
This brings back the ops->detach_dev() code that commit
1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
into an IDENTITY domain.
Also reverts commit 584d334b1393 ("iommu/ipmmu-vmsa: Remove
ipmmu_utlb_disable()")
Signed-off-by:
On 2023/8/3 8:08, Jason Gunthorpe wrote:
This brings back the ops->detach_dev() code that commit
1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
into an IDENTITY domain.
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 39
On Wed Aug 9, 2023 at 6:01 PM AEST, Christophe Leroy wrote:
> With skiboot_defconfig, Clang reports:
>
> CC arch/powerpc/mm/book3s64/radix_tlb.o
> arch/powerpc/mm/book3s64/radix_tlb.c:419:20: error: unused function
> '_tlbie_pid_lpid' [-Werror,-Wunused-function]
> static inline void
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