Hi Bhupesh,
On 25/12/2019 19:01, Bhupesh Sharma wrote:
> On 12/12/2019 04:02 PM, James Morse wrote:
>> On 29/11/2019 19:59, Bhupesh Sharma wrote:
>>> vabits_actual variable on arm64 indicates the actual VA space size,
>>> and allows a single binary to support both 48-b
Hi Bhupesh,
On 29/11/2019 19:59, Bhupesh Sharma wrote:
> Add documentation for TCR_EL1.T1SZ variable being added to
> vmcoreinfo.
>
> It indicates the size offset of the memory region addressed by TTBR1_EL1
> and hence can be used for determining the vabits_actual value.
used for determining ra
Hi Bhupesh,
On 29/11/2019 19:59, Bhupesh Sharma wrote:
> vabits_actual variable on arm64 indicates the actual VA space size,
> and allows a single binary to support both 48-bit and 52-bit VA
> spaces.
>
> If the ARMv8.2-LVA optional feature is present, and we are running
> with a 64KB page size;
page = phys_to_page(addr);
> - ClearPageReserved(page);
> free_reserved_page(page);
> }
> }
>
Acked-by: James Morse
Thanks,
James
Hi Mark,
On 06/04/18 18:22, Mark Rutland wrote:
> Digging a bit, I also thing that our ct_user_exit and ct_user_enter
> usage is on dodgy ground today.
[...]
> I think similar applies to SDEI; we don't negotiate with RCU prior to
> invoking handlers, which might need RCU.
The arch code's __sdei
Hi Yury,
On 05/04/18 18:17, Yury Norov wrote:
> This series enables delaying of kernel memory synchronization
> for CPUs running in extended quiescent state (EQS) till the exit
> of that state.
>
> ARM64 uses IPI mechanism to notify all cores in SMP system that
> kernel text is changed; and IPI
Hi Yury,
On 05/04/18 18:17, Yury Norov wrote:
> Kernel text patching framework relies on IPI to ensure that other
> SMP cores observe the change. Target core calls isb() in IPI handler
(Odd, if its just to synchronize the CPU, taking the IPI should be enough).
> path, but not at the beginning o
Hi Michael,
On 17/07/17 11:17, Michael Ellerman wrote:
> James Morse writes:
>> compat_ptrace_request() lacks handlers for PTRACE_{G,S}ETSIGMASK,
>> instead using those in ptrace_request(). The compat variant should
>> read a compat_sigset_t from userspace instead
significant.
Instead of duplicating ptrace_request()s code as a special case in
the arch code, handle it here.
CC: Yury Norov
CC: Andrey Vagin
Reported-by: Zhou Chengming
Signed-off-by: James Morse
Fixes: 29000caecbe87 ("ptrace: add ability to get/set signal-blocked mask")
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LTP test
