On Tue, Oct 13, 2020 at 12:02:07PM -0700, Dave Hansen wrote:
> On 10/9/20 12:42 PM, ira.we...@intel.com wrote:
> > #ifdef CONFIG_X86_32
> > /*
> > * We can fault-in kernel-space virtual memory on-demand. The
> > diff --git a/include/linux/pkeys.h b/include/linux/pkeys.h
> > index
On Wed, Oct 14, 2020 at 09:06:44PM -0700, Dave Hansen wrote:
> On 10/14/20 8:46 PM, Ira Weiny wrote:
> > On Tue, Oct 13, 2020 at 11:52:32AM -0700, Dave Hansen wrote:
> >> On 10/9/20 12:42 PM, ira.we...@intel.com wrote:
> >>> @@ -341,6 +341,9 @@ noinstr void irqentry_enter(struct pt_regs *regs,
>
On Tue, Oct 13, 2020 at 11:56:53AM -0700, Dave Hansen wrote:
> > @@ -548,6 +549,11 @@ show_fault_oops(struct pt_regs *regs, unsigned long
> > error_code, unsigned long ad
> > (error_code & X86_PF_PK)? "protection keys violation" :
> >
On 10/14/20 8:46 PM, Ira Weiny wrote:
> On Tue, Oct 13, 2020 at 11:52:32AM -0700, Dave Hansen wrote:
>> On 10/9/20 12:42 PM, ira.we...@intel.com wrote:
>>> @@ -341,6 +341,9 @@ noinstr void irqentry_enter(struct pt_regs *regs,
>>> irqentry_state_t *state)
>>> /* Use the combo lockdep/tracing
On Tue, Oct 13, 2020 at 11:52:32AM -0700, Dave Hansen wrote:
> On 10/9/20 12:42 PM, ira.we...@intel.com wrote:
> > @@ -341,6 +341,9 @@ noinstr void irqentry_enter(struct pt_regs *regs,
> > irqentry_state_t *state)
> > /* Use the combo lockdep/tracing function */
> > trace_hardirqs_off();
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On Tue, Oct 13, 2020 at 11:43:57AM -0700, Dave Hansen wrote:
> > +static inline void pks_update_protection(int pkey, unsigned long
> > protection)
> > +{
> > + current->thread.saved_pkrs = update_pkey_val(current->thread.saved_pkrs,
> > +pkey,
Cleanup fill_list() to keep all the pgmap manipulations in a single
location of the function. Update the exit unwind path accordingly.
Link: http://lore.kernel.org/r/6186fa28-d123-12db-6171-a75cb6e61...@oracle.com
Cc: Juergen Gross
Cc: Stefano Stabellini
Cc: Andrew Morton
Cc:
Reported-by:
The conversion to request_mem_region() is broken because it assumes that
the range is marked busy prior to release. However, due to the way that
the kmem driver manipulates the IORESOURCE_BUSY flag (clears it to
let {add,remove}_memory() handle busy) it requires a manual
release_resource() to
Hi,
The v5 series of the device-dax-subdivision series landed upstream which
missed some of the late breaking fixups in v6 [1]. The Xen one is
cosmetic, the kmem one is a functional problem. I will handle the kmem
in a device-dax follow-on pull request post-rc1. The Xen one can go
through the Xen
On Tue, Oct 13, 2020 at 11:31:45AM -0700, Dave Hansen wrote:
> On 10/9/20 12:42 PM, ira.we...@intel.com wrote:
> > From: Ira Weiny
> >
> > The PKRS MSR is defined as a per-logical-processor register. This
> > isolates memory access by logical CPU. Unfortunately, the MSR is not
> > managed by
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