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,
or
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 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 the
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 bi
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 "Gu
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
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
>> '_tlbie_pid_lpi
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 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 the
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 .note.GNU
* 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 broug
* 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, all
* 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
> ---
> arch/
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|
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 ---
tools/perf/pmu-events/arch
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
---
tools/perf/pmu-e
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 ++
.../arch
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 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 cha
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
b/tools/perf/pmu-events/a
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 a/arc
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 store
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 *)
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
> > ops->identity_domai
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 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 que
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() acti
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 mtk_iommu_v1_def_doma
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 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 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 s
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 o
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 phys
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, 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 lon
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
> code?
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 for
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
> ---
> s
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 par
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);
>
> Se
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 pte_offset
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 = kvm_arch_post_se
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 or
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 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 at
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 oth
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;
def_do
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]);
+
+
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
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-r004-2023
configs may be tested in the coming days.
tested configs:
alphaallyesconfig gcc
alpha defconfig gcc
alpharandconfig-r001-20230814 gcc
alpharandconfig-r004-20230814 gcc
alpha
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
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 perha
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
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 b/arch/powerpc/include
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.
>>
On Mon, 14 Aug 2023, Jann Horn wrote:
> 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.
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