On Mon, Mar 01, 2021 at 08:19:32AM -0600, Rob Herring wrote:
> On Thu, Feb 25, 2021 at 6:59 AM Will Deacon wrote:
> > We recently [1] enabled support for CMDLINE_EXTEND on arm64, however
> > when I started looking at replacing Android's out-of-tree implementation [2]
>
&
d() to public interface
Shaoying Xu (1):
arm64 module: set plt* section addresses to 0x0
Timothy E Baldwin (1):
arm64: ptrace: Fix seccomp of traced syscall -1 (NO_SYSCALL)
Will Deacon (1):
arm64: spectre: Prevent lockdep splat on v4 mitigation enable path
Zhiyuan Dai (1):
arm6
x b9c2ee7ab43f..cce12e1971d8 100644
> > --- a/scripts/recordmcount.c
> > +++ b/scripts/recordmcount.c
> > @@ -438,7 +438,7 @@ static int arm_is_fake_mcount(Elf32_Rel const *rp)
> >
> > static int arm64_is_fake_mcount(Elf64_Rel const *rp)
> > {
> > - return ELF64_R_TYPE(w(rp->r_info)) != R_AARCH64_CALL26;
> > + return ELF64_R_TYPE(w8(rp->r_info)) != R_AARCH64_CALL26;
Acked-by: Will Deacon
But you know you could avoid these sorts of problems by moving to little
endian along with everybody else? ;)
Will
On Thu, Feb 25, 2021 at 01:53:56PM +, Marc Zyngier wrote:
> On Thu, 25 Feb 2021 12:59:20 +,
> Will Deacon wrote:
> >
> > The built-in kernel commandline (CONFIG_CMDLINE) can be configured in
> > three different ways:
> >
> > 1. CMDLINE_FORC
OBE
> select GENERIC_CPU_VULNERABILITIES
> select GENERIC_EARLY_IOREMAP
> + select GENERIC_FIND_FIRST_BIT
> select GENERIC_IDLE_POLL_SETUP
> select GENERIC_IRQ_IPI
> select GENERIC_IRQ_MULTI_HANDLER
Acked-by: Will Deacon
Catalin can pick this up later in the cycle.
Will
urce.com/c/kernel/common/+/841045
--->8
Cc: Max Uvarov
Cc: Rob Herring
Cc: Ard Biesheuvel
Cc: Marc Zyngier
Cc: Doug Anderson
Cc: Tyler Hicks
Cc: Frank Rowand
Cc: Arnd Bergmann
Cc: Palmer Dabbelt
Cc: Greg Kroah-Hartman
Cc: Catalin Marinas
Cc:
Cc:
Cc:
Will Deacon (2):
arm64: cpu
ction and following the same logic as that used by the EFI stub.
Cc: Marc Zyngier
Fixes: 33200303553d ("arm64: cpufeature: Add an early command-line cpufeature
override facility")
Signed-off-by: Will Deacon
---
arch/arm64/kernel/idreg-override.c | 44 +-
1 f
cmdline buffer rather
than concatenating it onto the end.
Cc: Max Uvarov
Cc: Rob Herring
Cc: Ard Biesheuvel
Cc: Marc Zyngier
Cc: Doug Anderson
Cc: Tyler Hicks
Cc: Frank Rowand
Fixes: 34b82026a507 ("fdt: fix extend of cmd line")
Signed-off-by: Will Deacon
---
drivers/of/
On Tue, Feb 23, 2021 at 09:27:44PM -0800, Yury Norov wrote:
> On Tue, Dec 08, 2020 at 10:35:50AM +0000, Will Deacon wrote:
> > On Mon, Dec 07, 2020 at 05:59:16PM -0800, Yury Norov wrote:
> > > (CC: Alexey Klimov)
> > >
> > > On Mon, Dec 7, 2020 at 3:25 AM Wi
On Mon, 22 Feb 2021 09:43:51 +0800, Zhiyuan Dai wrote:
> This patch move the pointer location to fix coding style issues,
> improve code reading.
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64/mm: Fixed some coding style issues
https://git.kernel.org/arm64/c/2e8acca1911b
Cheers,
--
On Tue, 23 Feb 2021 16:25:34 +0800, He Zhe wrote:
> As stated in linux/errno.h, ENOTSUPP should never be seen by user programs.
> When we set up uprobe with 32-bit perf and arm64 kernel, we would see the
> following vague error without useful hint.
>
> The sys_perf_event_open() syscall returned wi
On Tue, Feb 23, 2021 at 12:05:32PM +, Catalin Marinas wrote:
> On Tue, Feb 23, 2021 at 10:56:46AM +, Vincenzo Frascino wrote:
> > On 2/22/21 5:58 PM, Catalin Marinas wrote:
> > > We'll still have an issue with dynamically switching the async/sync mode
> > > at run-time. Luckily kasan doesn'
On Mon, Feb 22, 2021 at 01:50:06PM -0800, Jian Cai wrote:
> Please see my comments inlined below.
>
> Thanks,
> Jian
>
> On Mon, Feb 22, 2021 at 3:58 AM Will Deacon wrote:
> >
> > On Fri, Feb 19, 2021 at 03:08:13PM -0800, Jian Cai wrote:
> > > This patch
On Mon, Feb 22, 2021 at 11:16:38PM -0600, Eric W. Biederman wrote:
> Will Deacon writes:
>
> > On Fri, 19 Feb 2021 14:51:42 -0500, Pavel Tatashin wrote:
> >> machine_kexec_post_load() is called after kexec load is finished. It must
> >> declared in public
On Fri, 19 Feb 2021 14:51:42 -0500, Pavel Tatashin wrote:
> machine_kexec_post_load() is called after kexec load is finished. It must
> declared in public header not in kexec_internal.h
>
> Fixes the following compiler warning:
>
> arch/arm64/kernel/machine_kexec.c:62:5: warning: no previous prot
On Fri, Feb 19, 2021 at 02:44:49PM -0500, Pavel Tatashin wrote:
> On Fri, Feb 19, 2021 at 2:18 PM Will Deacon wrote:
> >
> > On Tue, Feb 16, 2021 at 10:03:51AM -0500, Pavel Tatashin wrote:
> > > Memory hotplug may fail on systems with CONFIG_RANDOMIZE_BASE because the
&
> Suggested-by: Nathan Chancellor
> Suggested-by: David Laight
> Suggested-by: Will Deacon
> Reviewed-by: Nathan Chancellor
> Signed-off-by: Jian Cai
> ---
Please can you reply to my previous questions?
https://lore.kernel.org/linux-arm-kernel/20210217094859.GA3706@willi
On Tue, Feb 16, 2021 at 10:03:51AM -0500, Pavel Tatashin wrote:
> Memory hotplug may fail on systems with CONFIG_RANDOMIZE_BASE because the
> linear map range is not checked correctly.
>
> The start physical address that linear map covers can be actually at the
> end of the range because of random
On Thu, 18 Feb 2021 20:59:00 +0800, qiuguorui1 wrote:
> in function create_dtb(), if fdt_open_into() fails, we need to vfree
> buf before return.
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64: kexec_file: fix memory leakage in create_dtb() when
fdt_open_into() fails
https://git.ke
On Tue, 16 Feb 2021 18:32:34 +, Shaoying Xu wrote:
> These plt* and .text.ftrace_trampoline sections specified for arm64 have
> non-zero addressses. Non-zero section addresses in a relocatable ELF would
> confuse GDB when it tries to compute the section offsets and it ends up
> printing wrong s
On Fri, Feb 19, 2021 at 02:06:31PM -0500, Pavel Tatashin wrote:
> On Fri, Feb 19, 2021 at 12:53 PM Will Deacon wrote:
> >
> > On Mon, Feb 15, 2021 at 01:59:08PM -0500, Pavel Tatashin wrote:
> > > machine_kexec_post_load() is called after kexec load is finished. It must
>
On Mon, Feb 15, 2021 at 01:59:08PM -0500, Pavel Tatashin wrote:
> machine_kexec_post_load() is called after kexec load is finished. It must
> be declared in public header not in kexec_internal.h
Could you provide a log of what goes wrong without this patch, please?
> Reported-by: kernel test robo
On Wed, Feb 17, 2021 at 11:37:04PM +0530, Neeraj Upadhyay wrote:
>
>
> On 2/17/2021 10:36 PM, Will Deacon wrote:
> > On Wed, Feb 17, 2021 at 10:14:11PM +0530, Neeraj Upadhyay wrote:
> > > Add the MIDR part number info for the Arm Cortex-A78.
> > >
>
rame+0x44/0xa9
>
> Fix this by moving get_zeroed_page() out of spin_lock/unlock section.
>
> Fixes: 754265bcab ("iommu/amd: Fix race in increase_address_space()")
> Signed-off-by: Andrey Ryabinin
> Cc:
> ---
> drivers/iommu/amd/iommu.c | 10 ++
> 1 file changed, 6 insertions(+), 4 deletions(-)
Acked-by: Will Deacon
Will
On Wed, Feb 17, 2021 at 10:14:11PM +0530, Neeraj Upadhyay wrote:
> Add the MIDR part number info for the Arm Cortex-A78.
>
> Signed-off-by: Neeraj Upadhyay
> ---
> arch/arm64/include/asm/cputype.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/include/asm/cputype.h
> b/a
On Fri, Feb 12, 2021 at 11:52:53AM -0800, Jian Cai wrote:
> This patch adds CONFIG_HARDEN_SLS_ALL that can be used to turn on
> -mharden-sls=all, which mitigates the straight-line speculation
> vulnerability, speculative execution of the instruction following some
> unconditional jumps. Notice -mha
[Please include arm64 and kvm folks for threads involving the stage-2 MMU]
On Tue, Feb 16, 2021 at 03:47:52PM +0530, Preeti Nagar wrote:
> The changes introduce a new security feature, RunTime Integrity Check
> (RTIC), designed to protect Linux Kernel at runtime. The motivation
> behind these chan
e_policy check
arm64: topology: Reorder init_amu_fie() a bit
arm64: topology: Make AMUs work with modular cpufreq drivers
Wei Li (1):
drivers/perf: Add support for ARMv8.3-SPE
Will Deacon (23):
mm: Allow architectures to request 'old' entries when prefaulting
On Thu, Feb 04, 2021 at 03:55:30PM +, Dave Martin wrote:
> On Wed, Feb 03, 2021 at 09:22:38AM -0800, Chang S. Bae wrote:
> > Move the AT_MINSIGSTKSZ definition to generic Linux from arm64. It is
> > already used as generic ABI in glibc's generic elf.h, and this move will
> > prevent future name
On Tue, 9 Feb 2021 17:42:22 +0800, Qi Liu wrote:
> There is no need to do spin_lock_irqsave in context of hard IRQ, so
> replace them with spin_lock.
Applied to will (for-next/perf), thanks!
[1/1] drivers/perf: Replace spin_lock_irqsave to spin_lock
https://git.kernel.org/will/c/8ee37e0f97e
On Thu, Feb 11, 2021 at 05:40:35PM +0530, Anshuman Khandual wrote:
> On 2/11/21 5:23 PM, Will Deacon wrote:
> > On Fri, Feb 05, 2021 at 06:55:53PM +0000, Will Deacon wrote:
> >> On Wed, Feb 03, 2021 at 09:20:39AM +0530, Anshuman Khandual wrote:
> >>> On 2/2/21 6:
On Fri, Feb 05, 2021 at 06:55:53PM +, Will Deacon wrote:
> On Wed, Feb 03, 2021 at 09:20:39AM +0530, Anshuman Khandual wrote:
> > On 2/2/21 6:26 PM, David Hildenbrand wrote:
> > > On 02.02.21 13:51, Will Deacon wrote:
> > >> On Tue, Feb 02, 2021 at 01:39:29PM
On Wed, Feb 10, 2021 at 03:44:38PM -0800, Kees Cook wrote:
> As started by commit 05a5f51ca566 ("Documentation: Replace lkml.org
> links with lore"), replace lkml.org links with lore to better use a
> single source that's more likely to stay available long-term.
>
> Signed-off-by: Kees Cook
> ---
_file.c | 180 ++---
> 1 file changed, 8 insertions(+), 172 deletions(-)
I mean, of course I'm going to Ack that!
Acked-by: Will Deacon
Will
On Tue, Feb 09, 2021 at 12:24:49PM -0800, Guenter Roeck wrote:
> On Thu, Jan 14, 2021 at 05:59:27PM +0000, Will Deacon wrote:
> > From: "Kirill A. Shutemov"
> >
> > alloc_set_pte() has two users with different requirements: in the
> > faultaround code, it
On Mon, 8 Feb 2021 17:57:20 -0700, Nathan Chancellor wrote:
> Similar to commit 28187dc8ebd9 ("ARM: 9025/1: Kconfig: CPU_BIG_ENDIAN
> depends on !LD_IS_LLD"), ld.lld prior to 13.0.0 does not properly
> support aarch64 big endian, leading to the following build error when
> CONFIG_CPU_BIG_ENDIAN is
On Tue, Feb 09, 2021 at 10:00:29AM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 10:47:08 (+), Quentin Perret wrote:
> > On Wednesday 03 Feb 2021 at 14:37:10 (+0000), Will Deacon wrote:
> > > > +static void handle___pkvm_init(struct kvm_c
Hi Marc,
On Mon, Feb 08, 2021 at 09:57:09AM +, Marc Zyngier wrote:
> It recently came to light that there is a need to be able to override
> some CPU features very early on, before the kernel is fully up and
> running. The reasons for this range from specific feature support
> (such as using P
On Mon, Feb 01, 2021 at 11:56:28AM +, Marc Zyngier wrote:
> In order to be able to override CPU features at boot time,
> let's add a command line parser that matches options of the
> form "cpureg.feature=value", and store the corresponding
> value into the override val/mask pair.
>
> No featur
On Fri, Feb 05, 2021 at 04:00:07PM +, Vincenzo Frascino wrote:
>
>
> On 2/5/21 3:49 PM, Andrey Konovalov wrote:
> > On Mon, Feb 1, 2021 at 9:04 PM Andrey Konovalov
> > wrote:
> >>
> >> On Sat, Jan 30, 2021 at 5:52 PM Vincenzo Frascino
> >> wrote:
> >>>
> >>> @@ -45,6 +52,9 @@ static enum k
On Fri, Feb 05, 2021 at 04:50:27PM +, Marc Zyngier wrote:
> On 2021-02-05 11:19, Will Deacon wrote:
> > On Fri, Feb 05, 2021 at 09:11:00AM +, Steven Price wrote:
> > > On 02/02/2021 14:11, Marc Zyngier wrote:
> > > > + for (i = 0; i < 32; ++i) {
&
On Fri, Feb 05, 2021 at 12:06:10AM +0800, Lecopzer Chen wrote:
> I think it would be better to leave this for you since I'm not
> familiar with the relationship
> between vmemmap() and NUMA_NO_NODE.
>
> So I would just keep this patch in next version, is this fine with you?
Yes, ok.
Will
On Wed, Feb 03, 2021 at 09:20:39AM +0530, Anshuman Khandual wrote:
> On 2/2/21 6:26 PM, David Hildenbrand wrote:
> > On 02.02.21 13:51, Will Deacon wrote:
> >> On Tue, Feb 02, 2021 at 01:39:29PM +0100, David Hildenbrand wrote:
> >>> As I expressed already, long term w
On Fri, Feb 05, 2021 at 06:30:44PM +0100, Andrey Konovalov wrote:
> On Fri, Feb 5, 2021 at 6:19 PM Will Deacon wrote:
> >
> > On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote:
> > >
> > > > On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Ch
On Fri, 5 Feb 2021 04:09:19 -0500, Miaohe Lin wrote:
> commit d8ed45c5dcd4 ("mmap locking API: use coccinelle to convert mmap_sem
> rwsem call sites") has convertd down_read_trylock() to mmap_read_trylock().
> But it forgot to update the relevant comment.
Applied to arm64 (for-next/cosmetic), than
On Tue, 2 Feb 2021 09:41:52 +0530, Anshuman Khandual wrote:
> This series fixes pfn_valid() for ZONE_DEVICE based memory and also improves
> its performance for normal hotplug memory. While here, it also reorganizes
> pfn_valid() on CONFIG_SPARSEMEM. This series is based on v5.11-rc6.
>
> Question
On Thu, Feb 04, 2021 at 11:08:33AM +, Quentin Perret wrote:
> On Wednesday 03 Feb 2021 at 15:31:39 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:15PM +, Quentin Perret wrote:
> > > @@ -1481,7 +1486,10 @@ static void cpu_set_hyp_vector(void)
> > >
On Thu, Feb 04, 2021 at 10:47:08AM +, Quentin Perret wrote:
> On Wednesday 03 Feb 2021 at 14:37:10 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:14PM +, Quentin Perret wrote:
> > > +static inline unsigned long __hyp_pgtable_max_pages(unsigned lo
On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote:
>
> > On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote:
> > > > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote:
> > > > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> > > > > ("kasan: suppo
On Fri, Feb 05, 2021 at 09:11:00AM +, Steven Price wrote:
> On 02/02/2021 14:11, Marc Zyngier wrote:
> > diff --git a/drivers/firmware/smccc/kvm_guest.c
> > b/drivers/firmware/smccc/kvm_guest.c
> > new file mode 100644
> > index ..23ce1ded88b4
> > --- /dev/null
> > +++ b/drivers/fi
On Thu, Feb 04, 2021 at 06:19:36PM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > Just feels a bit backwards having __find_buddy() take an order parameter,
> > yet then return a page of the wrong order! __hyp_extract_page() always
On Thu, Feb 04, 2021 at 06:01:12PM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 17:48:49 (+), Will Deacon wrote:
> > On Thu, Feb 04, 2021 at 02:52:52PM +, Quentin Perret wrote:
> > > On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> >
DT, and to free the FDT respectively.
>
> Signed-off-by: Lakshmi Ramasubramanian
> Suggested-by: Rob Herring
> ---
> arch/arm64/kernel/machine_kexec_file.c | 37 +++---
> 1 file changed, 10 insertions(+), 27 deletions(-)
Acked-by: Will Deacon
Will
On Thu, Feb 04, 2021 at 11:53:46PM +0800, Lecopzer Chen wrote:
> > On Sat, Jan 09, 2021 at 06:32:48PM +0800, Lecopzer Chen wrote:
> > > Linux supports KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> > > ("kasan: support backing vmalloc space with real shadow memory")
> > >
> > > Acroding to how x
On Thu, Feb 04, 2021 at 02:52:52PM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > On Wed, Feb 03, 2021 at 06:33:30PM +, Quentin Perret wrote:
> > > On Tuesday 02 Feb 2021 at 18:13:08 (+), Will Deacon wrote:
> > >
On Thu, Feb 04, 2021 at 10:51:27PM +0800, Lecopzer Chen wrote:
> > On Sat, Jan 09, 2021 at 06:32:50PM +0800, Lecopzer Chen wrote:
> > > Arm64 provide defined macro for KERNEL_START and KERNEL_END,
> > > thus replace them by the abstration instead of using _text and _end.
> > >
> > > Signed-off-by:
On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote:
> > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote:
> > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> > > ("kasan: support backing vmalloc space with real shadow memory")
> > >
> > > Like how the MODUL
region *region;
> int prot = IOMMU_WRITE | IOMMU_READ;
>
> - if (domid < 0)
> + if ((int)domid < 0)
> return;
> curdom = data->plat_data->iova_region + domid;
> for (i = 0; i < data->plat_data->iova_region_nr; i++) {
Thanks, Colin.
Acked-by: Will Deacon
Will
[+Kees]
On Mon, Feb 01, 2021 at 11:40:12AM -0800, Andrei Vagin wrote:
> Test output:
> TAP version 13
> 1..2
> # selftests: arm64/ptrace: ptrace_syscall_raw_regs_test
> # 1..2
> # ok 1 x7: 686920776f726c64
> # ok 2 The child exited with code 0.
> # # Totals: pass:2 fail:0 xfail:0 xpass:0 sk
On Mon, Feb 01, 2021 at 11:40:11AM -0800, Andrei Vagin wrote:
> We have some ABI weirdness in the way that we handle syscall
> exit stops because we indicate whether or not the stop has been
> signalled from syscall entry or syscall exit by clobbering a general
> purpose register (ip/r12 for AArch3
On Mon, Feb 01, 2021 at 11:40:10AM -0800, Andrei Vagin wrote:
> ip/r12 for AArch32 and x7 for AArch64 is used to indicate whether or not
> the stop has been signalled from syscall entry or syscall exit. This
> means that:
>
> - Any writes by the tracer to this register during the stop are
> igno
Hi Andrei,
On Mon, Feb 01, 2021 at 11:40:09AM -0800, Andrei Vagin wrote:
> Right now, ip/r12 for AArch32 and x7 for AArch64 is used to indicate
> whether or not the stop has been signalled from syscall entry or syscall
> exit. This means that:
>
> - Any writes by the tracer to this register durin
On Thu, Feb 04, 2021 at 02:26:35PM +, Quentin Perret wrote:
> On Wednesday 03 Feb 2021 at 16:11:47 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:24PM +, Quentin Perret wrote:
> > > When KVM runs in protected nVHE mode, make use of a stage 2 page-table
On Thu, Feb 04, 2021 at 02:24:44PM +, Quentin Perret wrote:
> On Wednesday 03 Feb 2021 at 15:59:44 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:22PM +, Quentin Perret wrote:
> > > The current stage2 page-table allocator uses a memcache to get
> > &g
On Wed, Feb 03, 2021 at 06:33:30PM +, Quentin Perret wrote:
> On Tuesday 02 Feb 2021 at 18:13:08 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:10PM +, Quentin Perret wrote:
> > > + * __find_buddy(pool, page 0, order 0) => page 1
> > > +
On Thu, Feb 04, 2021 at 11:32:51AM +0800, Jiapeng Chong wrote:
> Fix the following coccicheck warning:
>
> ./drivers/perf/arm-cci.c:708:8-16: WARNING: use scnprintf or sprintf.
> ./drivers/perf/arm-cci.c:699:8-16: WARNING: use scnprintf or sprintf.
> ./drivers/perf/arm-cci.c:528:8-16: WARNING: use
On Sat, Jan 09, 2021 at 06:32:48PM +0800, Lecopzer Chen wrote:
> Linux supports KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> ("kasan: support backing vmalloc space with real shadow memory")
>
> Acroding to how x86 ported it [1], they early allocated p4d and pgd,
> but in arm64 I just simulate
On Sat, Jan 09, 2021 at 06:32:50PM +0800, Lecopzer Chen wrote:
> Arm64 provide defined macro for KERNEL_START and KERNEL_END,
> thus replace them by the abstration instead of using _text and _end.
>
> Signed-off-by: Lecopzer Chen
> ---
> arch/arm64/mm/kasan_init.c | 6 +++---
> 1 file changed, 3
On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote:
> Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> ("kasan: support backing vmalloc space with real shadow memory")
>
> Like how the MODULES_VADDR does now, just not to early populate
> the VMALLOC_START between VMALLOC_E
On Thu, Feb 04, 2021 at 09:30:08AM +, Marc Zyngier wrote:
> Hi Will,
>
> On 2021-02-03 21:13, Will Deacon wrote:
> > Hi Marc,
> >
> > On Mon, Feb 01, 2021 at 11:56:22AM +, Marc Zyngier wrote:
> > > There isn't much that a VHE kernel needs on top
On Wed, Feb 03, 2021 at 01:59:36PM +, Colin King wrote:
> From: Colin Ian King
>
> Currently the check for domid < 0 is always false because domid
> is unsigned. Fix this by making it signed.
>
> Addresses-CoverityL ("Unsigned comparison against 0")
Typo here ('L' instead of ':')
> Fixes:
On Tue, Feb 02, 2021 at 11:56:27AM +0530, Sai Prakash Ranjan wrote:
> On 2021-02-01 23:50, Jordan Crouse wrote:
> > On Mon, Feb 01, 2021 at 08:20:44AM -0800, Rob Clark wrote:
> > > On Mon, Feb 1, 2021 at 3:16 AM Will Deacon wrote:
> > > > On Fri, Jan 29, 2021 at
On Wed, 3 Feb 2021 13:53:46 +0800, Seiya Wang wrote:
> Add support for ARM Cortex-A78 PMU since it will be used in
> new Mediatek SoC.
>
> Based on v5.11-rc6
>
> Change in v2:
> Remove change-id in commit message
>
> [...]
Applied to will (for-next/perf), thanks!
[1/2] arm64: perf: add support
Hi Marc,
On Mon, Feb 01, 2021 at 11:56:22AM +, Marc Zyngier wrote:
> There isn't much that a VHE kernel needs on top of whatever has
> been done for nVHE, so let's move the little we need to the
> VHE stub (the SPE setup), and drop the init_el2_state macro.
>
> No expected functional change.
e/asm/kvm_asm.h | 3 +++
> arch/arm64/kernel/asm-offsets.c| 3 +++
> arch/arm64/kvm/arm.c | 5 +
> arch/arm64/kvm/hyp/nvhe/hyp-init.S | 9 +
> arch/arm64/kvm/hyp/nvhe/switch.c | 5 +
> 5 files changed, 21 insertions(+), 4 deletions(-)
Acked-by: Will Deacon
Will
On Fri, Jan 08, 2021 at 12:15:24PM +, Quentin Perret wrote:
> When KVM runs in protected nVHE mode, make use of a stage 2 page-table
> to give the hypervisor some control over the host memory accesses. At
> the moment all memory aborts from the host will be instantly idmapped
> RWX at stage 2 i
On Fri, Jan 08, 2021 at 12:15:22PM +, Quentin Perret wrote:
> The current stage2 page-table allocator uses a memcache to get
> pre-allocated pages when it needs any. To allow re-using this code at
> EL2 which uses a concept of memory pools, make the memcache argument to
> kvm_pgtable_stage2_map
On Fri, Jan 08, 2021 at 12:15:21PM +, Quentin Perret wrote:
> Refactor __populate_fault_info() to introduce __get_fault_info() which
> will be used once the host is wrapped in a stage 2.
>
> Signed-off-by: Quentin Perret
> ---
> arch/arm64/kvm/hyp/include/hyp/switch.h | 36 +++---
t; 1 file changed, 7 insertions(+), 2 deletions(-)
Acked-by: Will Deacon
Will
On Fri, Jan 08, 2021 at 12:15:19PM +, Quentin Perret wrote:
> In order to re-use some of the stage 2 setup at EL2, factor parts of
> kvm_arm_setup_stage2() out into static inline functions.
>
> No functional change intended.
>
> Signed-off-by: Quentin Perret
> ---
> arch/arm64/include/asm/k
off-by: Quentin Perret
> ---
> arch/arm64/include/asm/kvm_host.h | 2 +-
> arch/arm64/include/asm/kvm_mmu.h | 7 ++-
> arch/arm64/kvm/mmu.c | 8
> 3 files changed, 11 insertions(+), 6 deletions(-)
Acked-by: Will Deacon
Will
---
> arch/arm64/include/asm/kvm_pgtable.h | 5 +++--
> arch/arm64/kvm/hyp/pgtable.c | 6 +++---
> arch/arm64/kvm/mmu.c | 2 +-
> 3 files changed, 7 insertions(+), 6 deletions(-)
Acked-by: Will Deacon
Will
On Fri, Jan 08, 2021 at 12:15:15PM +, Quentin Perret wrote:
> Previous commits have introduced infrastructure at EL2 to enable the Hyp
> code to manage its own memory, and more specifically its stage 1 page
> tables. However, this was preliminary work, and none of it is currently
> in use.
>
>
2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Acked-by: Will Deacon
Will
ecessary host kernel changes.
>
> Credits to Will for __pkvm_init_switch_pgd.
>
> Co-authored-by: Will Deacon
> Signed-off-by: Will Deacon
> Signed-off-by: Quentin Perret
[...]
> diff --git a/arch/arm64/include/asm/kvm_hyp.h
> b/arch/arm64/include/asm/kvm_hyp.h
> index c04508
On Tue, Feb 02, 2021 at 01:35:38PM -0800, Nadav Amit wrote:
> > On Feb 2, 2021, at 3:00 AM, Peter Zijlstra wrote:
> >
> > On Tue, Feb 02, 2021 at 01:32:36AM -0800, Nadav Amit wrote:
> >>> On Feb 1, 2021, at 3:36 AM, Peter Zijlstra wrote:
> >>>
> >>>
> >>> https://lkml.kernel.org/r/202101272353
On Tue, 2 Feb 2021 15:58:06 +0800, Qi Liu wrote:
> Set "suppress_bind_attrs" to true, so that bind/unbind can be
> disabled via sysfs and prevent unbinding ARM_DMC620_PMU drivers
> during perf sampling.
Applied to will (for-next/perf), thanks!
[1/1] drivers/perf: Prevent forced unbinding of ARM_D
On Tue, 2 Feb 2021 23:07:49 +0800, Hailong Liu wrote:
> The current /sys/kernel/debug/kernel_page_tables does not display the
> *Linear Mapping start* marker on arm64, which I think should be paired
> with the *Linear Mapping start* marker.
>
> Since *Linear Mapping start* is the first marker, use
off-by: Quentin Perret
> ---
> arch/arm64/include/asm/kvm_mmu.h | 8
> arch/arm64/kvm/arm.c | 9 +
> 2 files changed, 9 insertions(+), 8 deletions(-)
Acked-by: Will Deacon
Will
Hi Quentin,
Sorry for the delay, this one took me a while to grok.
On Fri, Jan 08, 2021 at 12:15:10PM +, Quentin Perret wrote:
> When memory protection is enabled, the hyp code will require a basic
> form of memory management in order to allocate and free memory pages at
> EL2. This is needed
us testing on this. I saw a report of the
> warning and the fix seemed obvious so I'm shooting it out.
>
> drivers/iommu/iommu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Acked-by: Will Deacon
Joerg -- please can you apply this one on top of the pull request I sent
yesterday?
Cheers,
Will
On Tue, Feb 02, 2021 at 02:34:56PM +0100, Joerg Roedel wrote:
> On Mon, Feb 01, 2021 at 03:46:33PM +0000, Will Deacon wrote:
> > git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git
> > tags/arm-smmu-updates
>
> Pulled, thanks Will.
Cheers, Joerg. Doug spotted a
On Tue, Feb 02, 2021 at 10:03:45AM +0800, Yong Wu wrote:
> On Mon, 2021-02-01 at 14:54 +0000, Will Deacon wrote:
> > On Mon, Jan 11, 2021 at 07:18:41PM +0800, Yong Wu wrote:
> > > This patch mainly adds support for mt8192 Multimedia IOMMU and SMI.
> > >
> > >
On Tue, Feb 02, 2021 at 01:39:29PM +0100, David Hildenbrand wrote:
> On 02.02.21 13:35, Will Deacon wrote:
> > On Tue, Feb 02, 2021 at 12:32:15PM +0000, Will Deacon wrote:
> > > On Tue, Feb 02, 2021 at 09:41:53AM +0530, Anshuman Khandual wrote:
> > > > pfn_valid() va
On Tue, Feb 02, 2021 at 12:32:15PM +, Will Deacon wrote:
> On Tue, Feb 02, 2021 at 09:41:53AM +0530, Anshuman Khandual wrote:
> > pfn_valid() validates a pfn but basically it checks for a valid struct page
> > backing for that pfn. It should always return positive for memory ra
On Tue, Feb 02, 2021 at 09:41:53AM +0530, Anshuman Khandual wrote:
> pfn_valid() validates a pfn but basically it checks for a valid struct page
> backing for that pfn. It should always return positive for memory ranges
> backed with struct page mapping. But currently pfn_valid() fails for all
> ZO
On Mon, Feb 01, 2021 at 08:43:36PM +0100, Andrey Konovalov wrote:
> Export mte_enable_kernel() and mte_set_report_once() to fix:
>
> ERROR: modpost: "mte_enable_kernel" [lib/test_kasan.ko] undefined!
> ERROR: modpost: "mte_set_report_once" [lib/test_kasan.ko] undefined!
>
> Signed-off-by: Andrey
On Tue, Feb 02, 2021 at 09:57:36AM +, Quentin Perret wrote:
> On Monday 01 Feb 2021 at 19:06:20 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:09PM +, Quentin Perret wrote:
> > > In order to use the kernel list library at EL2, introduce stubs for the
>
On Fri, Jan 08, 2021 at 12:15:09PM +, Quentin Perret wrote:
> In order to use the kernel list library at EL2, introduce stubs for the
> CONFIG_DEBUG_LIST out-of-lines calls.
>
> Signed-off-by: Quentin Perret
> ---
> arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
> arch/arm64/kvm/hyp/nvhe/stub.c
On Fri, Jan 08, 2021 at 12:15:08PM +, Quentin Perret wrote:
> diff --git a/arch/arm64/kvm/hyp/nvhe/early_alloc.c
> b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
> new file mode 100644
> index ..de4c45662970
> --- /dev/null
> +++ b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
> @@ -0,0 +1,60 @@
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