Hi Jeff,
Thanks for chiming in!
On Wed, Oct 30, 2024 at 03:01:53PM -0700, Jeff Xu wrote:
> On Tue, Oct 29, 2024 at 7:46 AM Kevin Brodsky wrote:
> >
> > TL;DR: reset POR_EL0 to "allow all" before writing the signal frame,
> > preventing spurious uaccess failures.
[...]
> > @@ -924,12 +982,14 @@
On Tue, 29 Oct 2024 14:45:34 +, Kevin Brodsky wrote:
> This series is a follow-up to Joey's Permission Overlay Extension (POE)
> series [1] that recently landed on mainline. The goal is to improve the
> way we handle the register that governs which pkeys/POIndex are
> accessible (POR_EL0) durin
On Mon, Oct 21, 2024 at 04:30:04PM +0100, Catalin Marinas wrote:
> On Mon, Oct 21, 2024 at 02:31:08PM +0100, Dave P Martin wrote:
> > > > On Thu, Oct 17, 2024 at 02:39:04PM +0100, Kevin Brodsky wrote:
> > > >> This series is a follow-up to Joey's Permission Overlay Extension (POE)
> > > >> series [
On Tue, Oct 15, 2024 at 10:59:11AM +0100, Joey Gouly wrote:
> On Mon, Oct 14, 2024 at 06:10:23PM +0100, Will Deacon wrote:
> > Kevin, Joey,
> >
> > On Wed, Oct 09, 2024 at 03:43:01PM +0100, Will Deacon wrote:
> > > On Tue, Sep 24, 2024 at 01:27:58PM +0200, Kevin B
On Thu, Sep 12, 2024 at 06:04:26AM -0700, Yi Liu wrote:
> From: Jason Gunthorpe
>
> set_dev_pasid() op is going to be enhanced to support domain replacement
> of a pasid. This prepares for this op definition.
>
> Signed-off-by: Jason Gunthorpe
> Signed-off-by: Yi Liu
> ---
> drivers/iommu/arm
Kevin, Joey,
On Wed, Oct 09, 2024 at 03:43:01PM +0100, Will Deacon wrote:
> On Tue, Sep 24, 2024 at 01:27:58PM +0200, Kevin Brodsky wrote:
> > On 22/08/2024 17:11, Joey Gouly wrote:
> > > @@ -1178,6 +1237,9 @@ static void setup_return(struct pt_regs *regs,
> >
Hi Kevin,
On Tue, Sep 24, 2024 at 01:27:58PM +0200, Kevin Brodsky wrote:
> On 22/08/2024 17:11, Joey Gouly wrote:
> > @@ -1178,6 +1237,9 @@ static void setup_return(struct pt_regs *regs, struct
> > k_sigaction *ka,
> > sme_smstop();
> > }
> >
> > + if (system_supports_poe())
>
On Thu, Sep 12, 2024 at 01:48:35PM +0100, Joey Gouly wrote:
> On Thu, Sep 12, 2024 at 11:50:18AM +0100, Will Deacon wrote:
> > On Wed, Sep 11, 2024 at 08:33:54AM -0700, Dave Hansen wrote:
> > > On 9/11/24 08:01, Kevin Brodsky wrote:
> > > > On 22/08/2024 17:10, Joey G
Hi Dave,
On Wed, Sep 11, 2024 at 08:33:54AM -0700, Dave Hansen wrote:
> On 9/11/24 08:01, Kevin Brodsky wrote:
> > On 22/08/2024 17:10, Joey Gouly wrote:
> >> @@ -371,6 +382,9 @@ int copy_thread(struct task_struct *p, const struct
> >> kernel_clone_args *args)
> >>if (system_supports_
On Wed, Sep 04, 2024 at 01:55:03PM +0100, Joey Gouly wrote:
> On Wed, Sep 04, 2024 at 12:43:02PM +0100, Will Deacon wrote:
> > Right, there's quite a lot I need to do:
> >
> > - Uncorrupt your patches
> > - Fix the conflict in the kvm selftests
> > - Drop
On Wed, Sep 04, 2024 at 12:32:21PM +0100, Joey Gouly wrote:
> On Wed, Sep 04, 2024 at 11:22:54AM +0100, Will Deacon wrote:
> > On Tue, Sep 03, 2024 at 03:54:13PM +0100, Joey Gouly wrote:
> > > On Mon, Sep 02, 2024 at 08:08:08PM +0100, Catalin Marinas wrote:
> > > >
On Tue, Sep 03, 2024 at 03:54:13PM +0100, Joey Gouly wrote:
> On Mon, Sep 02, 2024 at 08:08:08PM +0100, Catalin Marinas wrote:
> > On Tue, Aug 27, 2024 at 12:38:04PM +0100, Will Deacon wrote:
> > > On Fri, Aug 23, 2024 at 07:40:52PM +0100, Catalin Marinas wrote:
> > > &
On Fri, 30 Aug 2024 10:59:11 +0530, Dev Jain wrote:
> A "%s" is missing in ksft_exit_fail_msg(); instead, use the newly
> introduced ksft_exit_fail_perror().
>
>
Applied to arm64 (for-next/selftests), thanks!
[1/1] kselftest/arm64: Fix build warnings for ptrace
https://git.kernel.org/arm6
On Thu, 29 Aug 2024 18:20:09 +0100, Mark Brown wrote:
> The test case for SME vector length changes via sigreturn use a bit too
> much cut'n'paste and only actually changed the SVE vector length in the
> test itself. Andre's recent factoring out of the initialisation code caused
> this to be expose
er Upton
> Cc: Catalin Marinas
> Cc: Will Deacon
> Reviewed-by: Marc Zyngier
> ---
> arch/arm64/include/asm/kvm_asm.h | 3 ++-
> arch/arm64/kvm/hyp/include/hyp/fault.h | 2 +-
> 2 files changed, 3 insertions(+), 2 deletions(-)
Acked-by: Will Deacon
> diff --git arch
Hey Marc,
On Fri, Aug 30, 2024 at 09:01:18AM +0100, Marc Zyngier wrote:
> On Fri, 23 Aug 2024 14:48:11 +0100,
> Will Deacon wrote:
> >
> > On Thu, Aug 22, 2024 at 04:10:51PM +0100, Joey Gouly wrote:
> > > To allow using newer instructions that current assembl
On Tue, Aug 27, 2024 at 10:48:51AM +0530, Dev Jain wrote:
> A "%s" is missing in ksft_exit_fail_msg(); instead, use the newly
> introduced ksft_exit_fail_perror(). Also, uint64_t corresponds to
> unsigned 64-bit integer, so use %lx instead of %llx.
What's wrong with using %llx for a uint64_t? I th
On Fri, Aug 23, 2024 at 07:40:52PM +0100, Catalin Marinas wrote:
> On Fri, Aug 23, 2024 at 06:08:36PM +0100, Will Deacon wrote:
> > On Fri, Aug 23, 2024 at 05:41:06PM +0100, Catalin Marinas wrote:
> > > On Fri, Aug 23, 2024 at 03:45:32PM +0100, Will Deacon wrote:
> > > &
On Fri, Aug 23, 2024 at 05:41:06PM +0100, Catalin Marinas wrote:
> On Fri, Aug 23, 2024 at 03:45:32PM +0100, Will Deacon wrote:
> > On Thu, Aug 22, 2024 at 04:10:49PM +0100, Joey Gouly wrote:
> > > +static void permission_overlay_switch(struct task_struct *next)
&
On Wed, 21 Aug 2024 17:44:01 +0100, Andre Przywara wrote:
> Currently a number of SVE/SME related tests have almost identical
> functions to enumerate all supported vector lengths. However over time
> the copy&pasted code has diverged, allowing some bugs to creep in:
> - fake_sigreturn_sme_change_v
ess, then nothing to do */
> if (!(iommu_prot & (IOMMU_READ | IOMMU_WRITE)))
> - return 0;
> + return -EINVAL;
I think just removing this hunk altogether would get us the right semantics
for stage-2 mappings, but it's esoteric and not used so -EINVAL is probably
better:
Acked-by: Will Deacon
Will
On Thu, Aug 22, 2024 at 04:10:49PM +0100, Joey Gouly wrote:
> POR_EL0 is a register that can be modified by userspace directly,
> so it must be context switched.
>
> Signed-off-by: Joey Gouly
> Cc: Catalin Marinas
> Cc: Will Deacon
> Reviewed-by: Catalin Marinas
> -
er Upton
> Cc: Catalin Marinas
> Cc: Will Deacon
> Reviewed-by: Marc Zyngier
> ---
> arch/arm64/include/asm/kvm_asm.h | 3 ++-
> arch/arm64/kvm/hyp/include/hyp/fault.h | 2 +-
> 2 files changed, 3 insertions(+), 2 deletions(-)
Marc -- what would you like to do with this p
On Thu, Aug 22, 2024 at 04:10:47PM +0100, Joey Gouly wrote:
> Allow EL0 or EL1 to access POR_EL0 without being trapped to EL2.
>
> Signed-off-by: Joey Gouly
> Cc: Catalin Marinas
> Cc: Will Deacon
> Acked-by: Catalin Marinas
> Reviewed-by: Anshuman Khandual
> ---
&
On Fri, 12 Jul 2024 23:17:30 +, Remington Brasga wrote:
> The string passed to ksft_test_result_skip is missing the `type_name`
>
>
Applied to arm64 (for-next/core), thanks!
[1/1] kselftest: missing arg in ptrace.c
https://git.kernel.org/arm64/c/0c35e3bd412a
Cheers,
--
Will
https:/
On Thu, Jul 18, 2024 at 04:34:10PM +0100, Will Deacon wrote:
> On Tue, Jul 16, 2024 at 09:49:12AM +0530, Dev Jain wrote:
> >
> > On 7/13/24 04:47, Remington Brasga wrote:
> > > The string passed to ksft_test_result_skip is missing the `type_name`
> > >
>
On Tue, Jul 16, 2024 at 09:49:12AM +0530, Dev Jain wrote:
>
> On 7/13/24 04:47, Remington Brasga wrote:
> > The string passed to ksft_test_result_skip is missing the `type_name`
> >
> > Signed-off-by: Remington Brasga
> > ---
> > clang-tidy reported clang-diagnostic-format-insufficient-args warn
On Mon, Apr 29, 2024 at 04:40:12AM +, Dorine Tipo wrote:
> Add a new test, double_fork_test() to check the inheritance of the SVE
> vector length after a double fork.
> The `EXPECTED_TESTS` macro has been updated to account for this additional
> test.
> This patch addresses task 7 on the TODO l
On Tue, 23 Apr 2024 16:21:02 +0800, Kunwu Chan wrote:
> There is a 'malloc' call, which can be unsuccessful.
> This patch will add the malloc failure checking
> to avoid possible null dereference and give more information
> about test fail reasons.
>
>
Applied to arm64 (for-next/selftests), than
On Mon, Apr 22, 2024 at 12:37:13PM +0530, Dev Jain wrote:
> This series introduces the selftests/arm directory, which tests 32 and 64-bit
> kernel compatibility with 32-bit ELFs running on the Aarch platform.
> The need for this bucket of tests is that 32 bit applications built on legacy
> ARM arch
systems,
> > of_kexec_alloc_and_setup_fdt() will ignore the live DT (the empty root
> > one) and copy the 'initial_boot_params' data.
> >
> > Cc: Rob Herring
> > Cc: Frank Rowand
> > Cc: Catalin Marinas
> > Cc: Will Deacon
> > Cc: Mar
On Mon, 18 Dec 2023 23:39:32 +, Mark Brown wrote:
> The vec-syscfg selftest verifies that setting the VL of the currently
> tested vector type does not disrupt the VL of the other vector type. To do
> this it records the current vector length for each type but neglects to
> guard this with a ch
On Mon, 11 Dec 2023 16:13:12 +, James Clark wrote:
> Changes since v6:
>
> * Remove inlines from arm_pmuv3.c
> * Use format attribute mechanism from SPE
> * Re-arrange attributes so that threshold comes last and can
> potentially be extended
> * Emit an error if the max threshold i
On Tue, 05 Dec 2023 14:24:44 +, Mark Brown wrote:
> On failure we log the actual and expected value of the register we detect
> a mismatch in. For SME one obvious potential source of corruption would be
> if we had corrupted SVCR since changes in streaming mode will reset the
> register values,
On Fri, 24 Nov 2023 15:22:21 +, Mark Brown wrote:
> When TPIDR2 is not supported the tpidr2 ABI test prints the same message
> for each skipped test:
>
> ok 1 skipped, TPIDR2 not supported
>
> which isn't ideal for test automation software since it tracks kselftest
> results based on the st
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