On Sat, Jan 5, 2019 at 12:30 AM Sean Christopherson
wrote:
>
> On Fri, Jan 04, 2019 at 04:54:00PM +0800, lantianyu1...@gmail.com wrote:
> > From: Lan Tianyu
> >
> > This patch is to flush tlb via flush list function.
>
> More explanation of why this is beneficial would be nice. Without the
>
On Mon, 7 Jan 2019, Michael Ellerman wrote:
> Arnd Bergmann writes:
> > On Wed, Dec 26, 2018 at 1:43 AM Finn Thain
> > wrote:
> >
> >> +static ssize_t ppc_nvram_get_size(void)
> >> +{
> >> + if (ppc_md.nvram_size)
> >> + return ppc_md.nvram_size();
> >> + return
This argument is required to extend the generic ptrace API with
PTRACE_GET_SYSCALL_INFO request: syscall_get_arch() is going
to be called from ptrace_request() along with syscall_get_nr(),
syscall_get_arguments(), syscall_get_error(), and
syscall_get_return_value() functions with a tracee as their
PTRACE_GET_SYSCALL_INFO is a generic ptrace API that lets ptracer obtain
details of the syscall the tracee is blocked in.
There are two reasons for a special syscall-related ptrace request.
Firstly, with the current ptrace API there are cases when ptracer cannot
retrieve necessary information
syscall_get_error() is required to be implemented on this
architecture in addition to already implemented syscall_get_nr(),
syscall_get_arguments(), syscall_get_return_value(), and
syscall_get_arch() functions in order to extend the generic
ptrace API with PTRACE_GET_SYSCALL_INFO request.
Cc:
Arnd Bergmann writes:
> On Wed, Dec 26, 2018 at 1:43 AM Finn Thain wrote:
>
>> +static ssize_t ppc_nvram_get_size(void)
>> +{
>> + if (ppc_md.nvram_size)
>> + return ppc_md.nvram_size();
>> + return -ENODEV;
>> +}
>
>> +const struct nvram_ops arch_nvram_ops = {
>> +
