ug for
the arch and could fire frequently if it fires at all.
Reviewed-by: Nicholas Piggin
> ---
> include/linux/pgtable.h | 15 ---
> 1 file changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
> index e2b705c14
On Tue Apr 8, 2025 at 1:11 AM AEST, Alexander Gordeev wrote:
> Hi All,
>
> This series is an attempt to fix the violation of lazy MMU mode context
> requirement as described for arch_enter_lazy_mmu_mode():
>
> This mode can only be entered and left under the protection of
> the page table l
On Tue Apr 8, 2025 at 1:11 AM AEST, Alexander Gordeev wrote:
> apply_to_page_range() enters lazy MMU mode and then invokes
> kasan_populate_vmalloc_pte() callback on each page table walk
> iteration. The lazy MMU mode may only be entered only under
> protection of the page table lock. However, the
ng that
takes the ptl in the apply_to_page_range fn()... Looks like
you may be right. I wonder why they do and nobody else? Just
luck?
Seems okay.
Reviewed-by: Nicholas Piggin
> @@ -401,13 +401,10 @@ static int kasan_depopulate_vmalloc_pte(pte_t *ptep,
> unsigned long addr,
&g
}
> } while (addr += PAGE_SIZE, addr != end);
> }
> - *mask |= PGTBL_PTE_MODIFIED;
>
> arch_leave_lazy_mmu_mode();
>
> if (mm != &init_mm)
> pte_unmap_unlock(mapped_pte, ptl);
> +
> + *mask |= PGTBL_PTE_MODIFIED;
This is done just because we might as well? Less work in critical
section?
Reviewed-by: Nicholas Piggin
> +
> return err;
> }
>
pc64's requirement at least looks right to me
so for that,
Reviewed-by: Nicholas Piggin
>
> Signed-off-by: Alexander Gordeev
> ---
> mm/kasan/shadow.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
&g
On Thu Feb 6, 2025 at 6:41 PM AEST, Dan Horák wrote:
> Hi,
>
> I am getting a kernel panic on my Raptor Talos Power9 system after
> updating to the 6.14-rc1 kernel from 6.13. Seems reproducable every
> time, but I haven't start bisecting yet. Does it sound familiar to
> anyone?
No, but it's possib
break some corner case.
This could possibly be done for the other weird archs too, if it works
out for powerpc
Thanks,
Nick
Nicholas Piggin (2):
powerpc/signal: Clean up pt_regs access
powerpc/syscall: rework syscall return value handling
arch/powerpc/include/asm/ptrace.h | 13
ers, and recent 64-bit
powerpc that use scv 0 for the past few years have the same limitation
too.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/ptrace.h | 13 +
arch/powerpc/include/asm/syscall.h| 31 +-
arch/powerpc/kernel/interrupt.c
There are places in signal code that are made more readable by using a
'regs' local variable instead of finding it from the task.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/kernel/signal.c| 11 ++-
arch/powerpc/kernel/signal_64.c | 5 +++--
2 files changed, 9 insert
On Wed Jan 29, 2025 at 5:18 PM AEST, Paul Mackerras wrote:
> On Wed, Jan 29, 2025 at 04:36:14PM +1000, Nicholas Piggin wrote:
>> On Wed Jan 29, 2025 at 8:52 AM AEST, Paul Mackerras wrote:
>> > Microwatt now implements ISA v3.1 (SFFS compliancy subset), including
>> >
On Wed Jan 29, 2025 at 5:10 PM AEST, Paul Mackerras wrote:
> On Wed, Jan 29, 2025 at 04:14:25PM +1000, Nicholas Piggin wrote:
>> On Wed Jan 29, 2025 at 8:53 AM AEST, Paul Mackerras wrote:
>> > Power ISA v3.1 implementations in the Linux Compliancy Subset and
>> >
On Wed Jan 29, 2025 at 4:57 PM AEST, Paul Mackerras wrote:
> On Wed, Jan 29, 2025 at 04:21:26PM +1000, Nicholas Piggin wrote:
>> On Wed Jan 29, 2025 at 8:55 AM AEST, Paul Mackerras wrote:
>> > This adds support for Microwatt systems with more than one core, and
>> > upda
vailable in ISA v3.0. Not that we do much
with it at the moment IIRC, but there were dreams of wiring it in for
compat guests. With that fixed,
Acked-by: Nicholas Piggin
Thanks,
Nick
>
> Besides updating the ibm,powerpc-cpu-features property to reflect the
> above, this also makes the
On Wed Jan 29, 2025 at 8:55 AM AEST, Paul Mackerras wrote:
> This adds support for Microwatt systems with more than one core, and
> updates the device tree for a 2-core version. (This does not prevent
> the kernel from running on a single-core system.)
>
> Signed-off-by: Paul Mackerras
Well, I'm
t required to operate on the TLBs
> + in all CPUs in the system. Instead, the kernel does an IPI
> + to each relevant CPU to get it to do a local TLBIE instruction.
> + Select this option to force global invalidations to be done via
> + IPIs unconditionally.
...
On Wed Jan 29, 2025 at 8:52 AM AEST, Paul Mackerras wrote:
> This uses the 'wait' instruction to pause instruction execution when
> idle until an interrupt occurs.
>
> Signed-off-by: Paul Mackerras
> ---
> arch/powerpc/platforms/microwatt/setup.c | 9 +
> 1 file changed, 9 insertions(+)
>
On Wed Jan 29, 2025 at 8:51 AM AEST, Paul Mackerras wrote:
> This is to allow us to select Litex MMC host controller driver, which
> drives the litesdcard gateware.
>
> Signed-off-by: Paul Mackerras
Acked-by: Nicholas Piggin
> ---
> arch/powerpc/platforms/microwatt/Kconf
g
> Reported-by: Sean Christopherson
> Signed-off-by: Paolo Bonzini
Reviewed-by: Nicholas Piggin
> ---
> arch/powerpc/kvm/e500_mmu_host.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kvm/e500_mmu_host.c
> b/arch/powerpc/k
On Wed Sep 4, 2024 at 12:39 AM AEST, Andrew Jones wrote:
> Allow users to add additional CONFIG_* and override defaults
> by concatenating a given file with #define's and #undef's to
> lib/config.h
That's a horrible config format lol, but probbaly the simplest way to
get something working. What if
On Wed Sep 4, 2024 at 8:50 PM AEST, Andrew Jones wrote:
> Test building 32 and 64-bit with clang. Throw a test of in- and out-
> of-tree building in too by swapping which is done to which (32-bit
> vs. 64-bit) with respect to the gcc build tests.
>
Acked-by: Nicholas Piggin
> A
x27;--target=riscv64' \
> --cross-prefix=riscv64-linux-gnu-
Nice. Perhaps add a recipe to README?
Reviewed-by: Nicholas Piggin
Thanks,
Nick
>
> Reviewed-by: Thomas Huth
> Signed-off-by: Andrew Jones
> ---
> configure | 11 ---
> 1 file changed
ake such changes here. Okay in that case since it's limited to EFI.
Reviewed-by: Nicholas Piggin
>
> Signed-off-by: Andrew Jones
> ---
> Makefile | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Makefile b/Makefile
> index 3d51cb726120..7471f7285b7
On Wed Sep 4, 2024 at 8:50 PM AEST, Andrew Jones wrote:
> The spec says unaligned accesses are supported, so this isn't required
> and clang doesn't support it. A platform might have slow unaligned
> accesses, but kvm-unit-tests isn't about speed anyway.
>
> Reviewed-by: Thomas Huth
> Signed-off-b
has been
freed, but node->lock has not yet been cleared. Basically equivalent to
the problem solved by the barrier() on the count++ side.
This reordering would not cause a problem in your scenario AFAIKS
because when the lock call returns, node->lock *will* be cleared so it
can not cause a problem later.
Still, should we put a barrier() between these just to make things a
bit cleaner? I.e., when count is decremented, we definitely won't do
any other stores to node. Otherwise,
Reviewed-by: Nicholas Piggin
Thanks,
Nick
On Fri Jun 14, 2024 at 6:38 PM AEST, Nicholas Piggin wrote:
> On Fri Jun 14, 2024 at 11:08 AM AEST, Segher Boessenkool wrote:
> > On Fri, Jun 14, 2024 at 10:43:39AM +1000, Nicholas Piggin wrote:
> > > On Wed Jun 12, 2024 at 6:28 PM AEST, Segher Boessenkool wrote:
> > > &
On Sun Jul 14, 2024 at 6:27 PM AEST, Naveen N Rao wrote:
> We are restricted to a .text size of ~32MB when using out-of-line
> function profile sequence. Allow this to be extended up to the previous
> limit of ~64MB by reserving space in the middle of .text.
>
> A new config option CONFIG_PPC_FTRAC
On Sun Jul 14, 2024 at 6:27 PM AEST, Naveen N Rao wrote:
> Function profile sequence on powerpc includes two instructions at the
> beginning of each function:
> mflrr0
> bl ftrace_caller
>
> The call to ftrace_caller() gets nop'ed out during kernel boot and is
> patched in when
On Sun Jul 14, 2024 at 6:27 PM AEST, Naveen N Rao wrote:
> On powerpc, we would like to be able to make a pass on vmlinux.o and
> generate a new object file to be linked into vmlinux. Add a generic pass
> in Makefile.vmlinux that architectures can use for this purpose.
>
> Architectures need to sel
On Sun Jul 14, 2024 at 6:27 PM AEST, Naveen N Rao wrote:
> Move the ftrace stub used to cover inittext before _einittext so that it
> is within kernel text, as seen through core_kernel_text(). This is
> required for a subsequent change to ftrace.
Hmm, is there a reason it was outside einittext any
e-tree or similar, and we
could special case the HFAC->HEAI if necessary then.
Reviewed-by: Nicholas Piggin
>
> Signed-off-by: Gautam Menghani
> ---
> arch/powerpc/kvm/book3s_hv.c | 31 ++-
> 1 file changed, 2 insertions(+), 29 deletions(-)
>
> diff --
On Fri Jun 28, 2024 at 4:03 AM AEST, Gautam Menghani wrote:
> commit 6398326b9ba1("KVM: PPC: Book3S HV P9: Stop using vc->dpdes")
> introduced an optimization to use only vcpu->doorbell_request for SMT
> emulation for Power9 and above guests, but the code for nested guests
> still relies on the ol
On Fri Jun 21, 2024 at 5:09 AM AEST, Naveen N Rao wrote:
> Add support for bpf_arch_text_poke() and arch_prepare_bpf_trampoline()
> for 64-bit powerpc.
What do BPF trampolines give you?
> BPF prog JIT is extended to mimic 64-bit powerpc approach for ftrace
> having a single nop at function entry,
On Fri Jun 21, 2024 at 4:54 AM AEST, Naveen N Rao wrote:
> Function profile sequence on powerpc includes two instructions at the
> beginning of each function:
> mflrr0
> bl ftrace_caller
>
> The call to ftrace_caller() gets nop'ed out during kernel boot and is
> patched in when
On Fri Jun 21, 2024 at 4:54 AM AEST, Naveen N Rao wrote:
> On powerpc, we would like to be able to make a pass on vmlinux.o and
> generate a new object file to be linked into vmlinux. Add a generic pass
> in Makefile.vmlinux that architectures can use for this purpose.
>
> Architectures need to sel
*/
> - if (!rec->arch.mod) {
> - pr_err("No module loaded\n");
> - return -EINVAL;
> - }
> -
A couple of these conversions are not _exactly_ the same (lost
the pr_err here), maybe that's deliberate because the messages
don't look too useful.
Looks okay though
Reviewed-by: Nicholas Piggin
pc64_stub_entry);
LGTM. Hmm, you could get even cleverer
// make the trampoline to the ftrace_caller and ftrace_regs_caller
relocs += IS_ENABLED(CONFIG_DYNAMIC_FTRACE) +
IS_ENABLED(CONFIG_DYNAMIC_FTRACE_WITH_REGS);
But either way
Reviewed-by: Nicholas Piggin
Thanks,
Nick
ave the original return address in A's stack frame */
> + PPC_STL r0, LRSAVE(r1)
> /* Create a minimal stack frame for representing B */
> PPC_STLUr1, -STACK_FRAME_MIN_SIZE(r1)
>
> @@ -44,8 +46,6 @@
> SAVE_GPRS(3, 10, r1)
>
> #ifdef CONFIG_PPC64
> - /* Save the original return address in A's stack frame */
> - std r0, LRSAVE+SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE(r1)
> /* Ok to continue? */
> lbz r3, PACA_FTRACE_ENABLED(r13)
> cmpdi r3, 0
That seems right to me.
Reviewed-by: Nicholas Piggin
On Fri Jun 21, 2024 at 4:54 AM AEST, Naveen N Rao wrote:
> Rather than hard-coding the offset into a function to be used to
> determine if a kprobe is at function entry, use ftrace_location() to
> determine the ftrace location within the function and categorize all
> instructions till that offset t
On Tue Jun 25, 2024 at 3:20 PM AEST, LEROY Christophe wrote:
>
>
> Le 25/06/2024 à 06:49, Nicholas Piggin a écrit :
> > On Tue Jun 25, 2024 at 12:45 AM AEST, Christophe Leroy wrote:
> >> On book3s/64, the only user of hugepd is hash in 4k mode.
> >>
> >>
ed-by: Sourabh Jain
Fixes: 7fa95f9adaee7 ("powerpc/64s: system call support for scv/rfscv
instructions")
Signed-off-by: Nicholas Piggin
---
arch/powerpc/kexec/core_64.c | 11 +++
arch/powerpc/platforms/pseries/kexec.c | 8
arch/powerpc/platforms/pseries
On Tue Jun 25, 2024 at 12:45 AM AEST, Christophe Leroy wrote:
> On book3s/64, the only user of hugepd is hash in 4k mode.
>
> All other setups (hash-64, radix-4, radix-64) use leaf PMD/PUD.
>
> Rework hash-4k to use contiguous PMD and PUD instead.
>
> In that setup there are only two huge page size
On Wed Jun 19, 2024 at 4:39 AM AEST, Thomas Huth wrote:
> On 12/06/2024 07.23, Nicholas Piggin wrote:
> > Add some initial PMU testing.
> >
> > - PMC5/6 tests
> > - PMAE / PMI test
> > - BHRB basic tests
> >
> > Signed-off-by: Nicholas Piggin
&
On Fri Jun 14, 2024 at 11:08 AM AEST, Segher Boessenkool wrote:
> On Fri, Jun 14, 2024 at 10:43:39AM +1000, Nicholas Piggin wrote:
> > On Wed Jun 12, 2024 at 6:28 PM AEST, Segher Boessenkool wrote:
> > > On Wed, Jun 12, 2024 at 02:42:32PM +1000, Nicholas Piggin wrote:
> >
On Wed Jun 12, 2024 at 5:26 PM AEST, Andrew Jones wrote:
> On Wed, Jun 12, 2024 at 03:23:17PM GMT, Nicholas Piggin wrote:
> > run_qemu_status() looks for "EXIT: STATUS=%d" if the harness command
> > returned 1, to determine the final status of the test. In the case of
>
On Wed Jun 12, 2024 at 6:28 PM AEST, Segher Boessenkool wrote:
> On Wed, Jun 12, 2024 at 02:42:32PM +1000, Nicholas Piggin wrote:
> > arm, powerpc, riscv, build .aux.o targets with implicit pattern rules
> > in dependency chains that cause them to be made as intermediate files
With Fedora 40 (QEMU 8.2), more tests can be enabled.
Signed-off-by: Nicholas Piggin
---
.gitlab-ci.yml| 2 +-
powerpc/unittests.cfg | 17 -
2 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ffb3767ec..ee14330a3 100644
QEMU has fixed a number of powerpc test fails in Fedora 40, so upgrade
to that image.
Other architectures seem to be okay with Fedora 40 except for x86-64,
which fails some xsave and realmode tests, so only change powerpc to
start with.
Signed-off-by: Nicholas Piggin
---
.gitlab-ci.yml | 2
This adds a simple panic test for pseries and powernv that works with
TCG (unlike the s390x panic tests), making it easier to test this part
of the harness code.
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/rtas.h | 1 +
lib/powerpc/rtas.c | 16
powerpc/run
e.
With this change, running a panic test returns 0 on success (panic),
and the run_test.sh unit test correctly displays it as PASS rather than
FAIL.
Signed-off-by: Nicholas Piggin
---
scripts/arch-run.bash | 1 +
1 file changed, 1 insertion(+)
diff --git a/scripts/arch-run.bash b/scripts
, atomics)
that are known to work in CI.
Signed-off-by: Nicholas Piggin
---
.gitlab-ci.yml| 32
powerpc/unittests.cfg | 34 +++---
2 files changed, 35 insertions(+), 31 deletions(-)
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index
This moves merges ppc64 directories and files into powerpc, and
merges the 3 makefiles into one.
The configure --arch=powerpc option is aliased to ppc64 for
good measure.
Acked-by: Thomas Huth
Signed-off-by: Nicholas Piggin
---
MAINTAINERS| 1 -
configure
dev
Cc: kvm-ri...@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Andrew Jones
Signed-off-by: Nicholas Piggin
---
Makefile | 2 +-
configure | 18 +-
2 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/Makefile b/Makefile
index 5b7998b79..7fe93dfd8
Add some initial PMU testing.
- PMC5/6 tests
- PMAE / PMI test
- BHRB basic tests
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/processor.h | 2 +
lib/powerpc/asm/reg.h | 9 +
lib/powerpc/asm/setup.h | 1 +
lib/powerpc/setup.c | 20 ++
powerpc/Makefile.common
leged instruction interrupt test is added.
Reviewed-by: Thomas Huth
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/processor.h | 9 +
lib/powerpc/asm/reg.h | 1 +
lib/powerpc/asm/smp.h | 1 +
lib/powerpc/io.c| 7 +++
lib/powerpc/processor.c
Now that sieve copes with lack of MMU support, it can be run by
powerpc.
Reviewed-by: Thomas Huth
Signed-off-by: Nicholas Piggin
---
powerpc/Makefile.common | 1 +
powerpc/sieve.c | 1 +
powerpc/unittests.cfg | 3 +++
3 files changed, 5 insertions(+)
create mode 12 powerpc
Not all powerpc CPUs provide MMU support. Define vm_available() that is
true by default but archs can override it. Use this to run VM tests.
Reviewed-by: Thomas Huth
Reviewed-by: Andrew Jones
Signed-off-by: Nicholas Piggin
---
common/sieve.c | 14 --
lib/ppc64/asm/mmu.h | 1
Add support for radix MMU, 4kB and 64kB pages.
This also adds MMU interrupt test cases, and runs the interrupts
test entirely with MMU enabled if it is available (aside from
machine check tests).
Acked-by: Andrew Jones (configure changes)
Signed-off-by: Nicholas Piggin
---
configure
This has a known failure on QEMU TCG machines where the decrementer
interrupt is not lowered when the DEC wraps from -ve to +ve.
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/reg.h | 1 +
powerpc/Makefile.common | 1 +
powerpc/timebase.c | 350
Add some tests for larx/stcx. operations for certain edge cases including
migration, as well as some simple performance tests.
Signed-off-by: Nicholas Piggin
---
powerpc/Makefile.common | 1 +
powerpc/atomics.c | 386
powerpc/unittests.cfg
accurately determine this in future.
Use this facility to restrict some of the known test failures to TCG.
Reviewed-by: Thomas Huth
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/processor.h | 3 +++
lib/powerpc/setup.c | 26 ++
powerpc/interrupts.c| 6
panic
test user but it requires KVM so I couldn't see if run_tests.sh
looks sane there, but the harness needed a fix to work on powerpc.
Thanks,
Nick
Nicholas Piggin (15):
powerpc: Add facility to query TCG or KVM host
powerpc: Add atomics tests
powerpc: Add timebase tests
powerpc: Ad
, for consistency.
Suggested-by: Marc Hartmayer
Signed-off-by: Nicholas Piggin
---
arm/Makefile.common | 2 +-
powerpc/Makefile.common | 2 +-
riscv/Makefile | 2 +-
s390x/Makefile | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arm/Makefile.common b
On Wed Jun 5, 2024 at 11:06 PM AEST, Shivaprasad G Bhat wrote:
> The series fixes the issues exposed by the kvm-unit-tests[1]
> sprs-migration test.
>
> The SDAR, MMCR3 were seen to have some typo/refactoring bugs.
> The first two patches fix them.
>
> The remaining patches take care of save-restor
On Wed Jun 5, 2024 at 9:39 PM AEST, Gautam Menghani wrote:
> Doorbell emulation for KVM on PAPR guests is broken as support for DPDES
> was not added in initial patch series [1].
> Add DPDES support and doorbell handling support for V2 API.
Looks good, thanks. So fix for v1 doorbells is coming?
st \
> -nographic \
> -machine pseries,ic-mode=xics -accel kvm
>
> Add doorbell state handling support in the host
> KVM code to fix doorbell emulation.
Reviewed-by: Nicholas Piggin
>
> Fixes: 19d31c5f1157 ("KVM: PPC: Add support for nestedv2 guests&qu
On Wed Jun 5, 2024 at 9:39 PM AEST, Gautam Menghani wrote:
> Add support for using DPDES in the library for using guest state
> buffers. DPDES support is needed for enabling usage of doorbells in a
> L2 KVM on PAPR guest.
>
Reviewed-by: Nicholas Piggin
> Fixes: 6ccbbc33f06a
On Tue Jun 4, 2024 at 11:36 PM AEST, Andrew Jones wrote:
> On Tue, Jun 04, 2024 at 12:49:51PM GMT, Thomas Huth wrote:
> > On 04/05/2024 14.28, Nicholas Piggin wrote:
> > > This moves merges ppc64 directories and files into powerpc, and
> > > merges the 3 makefiles
On Tue Jun 4, 2024 at 9:01 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > This adds testing for the powernv machine, and adds a gitlab-ci test
> > group instead of specifying all tests in .gitlab-ci.yml, and adds a
> > few new tests (smp, atomi
On Tue Jun 4, 2024 at 8:38 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > Add some initial PMU testing.
> >
> > - PMC5/6 tests
> > - PMAE / PMI test
> > - BHRB basic tests
> >
> > Signed-off-by: Nicholas Piggin
> &g
On Tue Jun 4, 2024 at 5:30 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > Add support for radix MMU, 4kB and 64kB pages.
> >
> > This also adds MMU interrupt test cases, and runs the interrupts
> > test entirely with MMU enabled if
On Tue Jun 4, 2024 at 4:12 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > This has a known failure on QEMU TCG machines where the decrementer
> > interrupt is not lowered when the DEC wraps from -ve to +ve.
>
> Would it then make sense to mar
On Tue Jun 4, 2024 at 3:29 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > Signed-off-by: Nicholas Piggin
> > ---
>
> Please provide at least a short patch description about what is being tested
> here!
Will do.
Thanks,
Nick
On Tue Jun 4, 2024 at 3:27 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > The test harness uses spinlocks if they are implemented with larx/stcx.
> > it can prevent some test scenarios such as testing migration of a
> > reservation.
>
>
On Mon Jun 3, 2024 at 9:15 PM AEST, Shivaprasad G Bhat wrote:
> The patch adds a one-reg register identifier which can be used to
> read and set the virtual HASHKEYR for the guest during enter/exit
> with KVM_REG_PPC_HASHKEYR. The specific SPR KVM API documentation
> too updated.
>
> Signed-off-by:
On Mon Jun 3, 2024 at 9:13 PM AEST, Shivaprasad G Bhat wrote:
> The series fixes the issues exposed by the kvm-unit-tests[1]
> sprs-migration test.
>
> The SDAR, MMCR3 were seen to have some typo/refactoring bugs.
> The first two patches fix them.
>
> Though the nestedv2 APIs defined the guest stat
> + ulong hashkeyr;
> ulong ciabr;
> ulong cfar;
> ulong ppr;
Same comment applies
Reviewed-by: Nicholas Piggin
Thanks,
Nick
> diff --git a/arch/powerpc/kvm/book3s_hv.h b/arch/powerpc/kvm/book3s_hv.h
> index 7b0fd282fe95..c073fdfa7dc4 100644
> --- a/
dexcr;
> ulong ciabr;
> ulong cfar;
> ulong ppr;
Actually I would reorder the patches so you introduce the KVM reg
first, and put this hunk there.
The nested v2 bits look okay. For them,
Reviewed-by: Nicholas Piggin
> diff --git a/arch/powerpc/kvm/book3s_hv.h b/
Reviewed-by: Nicholas Piggin
>
> Signed-off-by: Shivaprasad G Bhat
> ---
> Documentation/virt/kvm/api.rst|1 +
> arch/powerpc/include/uapi/asm/kvm.h |1 +
> arch/powerpc/kvm/book3s_hv.c |6 ++
> tools/arch/powerpc/include/uapi/asm/
the uapi and documentation parts should go in their
own patch in a ppc kvm uapi topic branch? Otherwise looks okay.
Reviewed-by: Nicholas Piggin
>
> Signed-off-by: Shivaprasad G Bhat
> ---
> Documentation/virt/kvm/api.rst|1 +
> arch/powerpc/include/uapi/asm/kvm.h
On Mon Jun 3, 2024 at 7:30 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > The exception stack setup does not work correctly for SMP, because
> > it is the boot processor that calls cpu_set() which sets SPRG2 to
> > the exception stack, not the
On Mon Jun 3, 2024 at 5:09 PM AEST, Gautam Menghani wrote:
> On Mon, Jun 03, 2024 at 03:42:22PM GMT, Nicholas Piggin wrote:
> > On Wed May 22, 2024 at 6:49 PM AEST, Gautam Menghani wrote:
> > > Doorbell emulation is broken for KVM on PowerVM guests as support for
> > >
On Wed May 22, 2024 at 6:49 PM AEST, Gautam Menghani wrote:
> Doorbell emulation is broken for KVM on PowerVM guests as support for
> DPDES was not added in the initial patch series. Due to this, a KVM on
> PowerVM guest cannot be booted with the XICS interrupt controller as
> doorbells are to be s
On Tue May 21, 2024 at 2:43 AM AEST, Christophe Leroy wrote:
>
>
> Le 20/05/2024 à 14:54, Nicholas Piggin a écrit :
> > On Sat May 18, 2024 at 5:00 AM AEST, Christophe Leroy wrote:
> >> On book3s/64, the only user of hugepd is hash in 4k mode.
> >>
> >> Al
On Sat May 18, 2024 at 5:00 AM AEST, Christophe Leroy wrote:
> On book3s/64, the only user of hugepd is hash in 4k mode.
>
> All other setups (hash-64, radix-4, radix-64) use leaf PMD/PUD.
>
> Rework hash-4k to use contiguous PMD and PUD instead.
>
> In that setup there are only two huge page sizes
On Wed May 8, 2024 at 11:36 PM AEST, Thomas Huth wrote:
> On 08/05/2024 14.58, Thomas Huth wrote:
> > On 08/05/2024 14.55, Thomas Huth wrote:
> >> On 08/05/2024 14.27, Nicholas Piggin wrote:
> >>> On Wed May 8, 2024 at 1:08 AM AEST, Thomas Huth wrote:
> >>
On Wed May 8, 2024 at 10:36 PM AEST, Michael Ellerman wrote:
> Gautam Menghani writes:
> > PAPR hypervisor has introduced three new counters in the VPA area of
> > LPAR CPUs for KVM L2 guest (see [1] for terminology) observability - 2
> > for context switches from host to guest and vice versa, and
On Wed May 8, 2024 at 1:08 AM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > This allows different machines with different requirements to be
> > supported by run_tests.sh, similarly to how different accelerators
> > are handled.
> >
l2_to_l1_ns - local_paca->l2_to_l1_cs,
> + l2_runtime_ns -
> local_paca->l2_runtime_agg);
> + local_paca->l1_to_l2_cs = l1_to_l2_ns;
> + local_paca->l2_to_l1_cs = l2_to_l1_ns;
> + local_paca->l2_runtime_agg = l2_runt
On Mon May 6, 2024 at 5:37 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > Mark the failing h_cede_tm and spapr_vpa tests as kfail.
> >
> > Signed-off-by: Nicholas Piggin
> > ---
> > powerpc/spapr_vpa.c | 3 ++-
> > po
On Mon May 6, 2024 at 5:03 PM AEST, Thomas Huth wrote:
> On 04/05/2024 14.28, Nicholas Piggin wrote:
> > This adds a few minor fixes.
> >
> > Signed-off-by: Nicholas Piggin
> > ---
> > docs/unittests.txt | 12 +++-
> > 1 file changed, 7 inse
This adds testing for the powernv machine, and adds a gitlab-ci test
group instead of specifying all tests in .gitlab-ci.yml, and adds a
few new tests (smp, atomics) that are known to work in CI.
Signed-off-by: Nicholas Piggin
---
.gitlab-ci.yml| 30
incorrectly considered
to be kvm && !tcg.
Use this facility to restrict some of the known test failures to TCG.
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/processor.h | 3 +++
lib/powerpc/setup.c | 25 +
powerpc/atomics.c | 2 +-
This moves merges ppc64 directories and files into powerpc, and
merges the 3 makefiles into one.
The configure --arch=powerpc option is aliased to ppc64 for
good measure.
Signed-off-by: Nicholas Piggin
---
MAINTAINERS| 1 -
configure
dev
Cc: kvm-ri...@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Andrew Jones
Signed-off-by: Nicholas Piggin
---
Makefile | 2 +-
configure | 18 +-
2 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/Makefile b/Makefile
index 5b7998b79..7fe93dfd8
Add some initial PMU testing.
- PMC5/6 tests
- PMAE / PMI test
- BHRB basic tests
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/processor.h | 2 +
lib/powerpc/asm/reg.h | 9 +
lib/powerpc/asm/setup.h | 1 +
lib/powerpc/setup.c | 23 ++
powerpc/Makefile.common
leged instruction interrupt test is added.
Signed-off-by: Nicholas Piggin
---
lib/powerpc/asm/processor.h | 9 +
lib/powerpc/asm/reg.h | 1 +
lib/powerpc/asm/smp.h | 1 +
lib/powerpc/io.c| 7 +++
lib/powerpc/processor.c
Now that sieve copes with lack of MMU support, it can be run by
powerpc.
Signed-off-by: Nicholas Piggin
---
powerpc/Makefile.common | 1 +
powerpc/sieve.c | 1 +
powerpc/unittests.cfg | 3 +++
3 files changed, 5 insertions(+)
create mode 12 powerpc/sieve.c
diff --git a/powerpc
Not all powerpc CPUs provide MMU support. Define vm_available() that is
true by default but archs can override it. Use this to run VM tests.
Cc: Paolo Bonzini
Cc: Thomas Huth
Cc: k...@vger.kernel.org
Reviewed-by: Andrew Jones
Signed-off-by: Nicholas Piggin
---
common/sieve.c | 14
ff-by: Nicholas Piggin
---
common/sieve.c | 1 +
lib/libcflat.h | 2 --
lib/s390x/io.c | 1 +
lib/s390x/uv.h | 1 +
lib/x86/vm.h | 1 +
s390x/mvpg.c | 1 +
s390x/selftest.c | 1 +
x86/pmu.c | 1 +
x86/pmu_lbr.c | 1 +
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