On Wed, 8 Jun 2022, Julien Grall wrote:
> On 08/06/2022 02:08, Stefano Stabellini wrote:
> > > diff --git a/xen/arch/arm/include/asm/pmap.h
> > > b/xen/arch/arm/include/asm/pmap.h
> > > new file mode 100644
> > > index ..74398b4c4fe6
> > > --- /dev/null
> > > +++ b/xen/arch/arm/include/
Hi Stefano,
On 08/06/2022 02:08, Stefano Stabellini wrote:
diff --git a/xen/arch/arm/include/asm/pmap.h b/xen/arch/arm/include/asm/pmap.h
new file mode 100644
index ..74398b4c4fe6
--- /dev/null
+++ b/xen/arch/arm/include/asm/pmap.h
@@ -0,0 +1,32 @@
+#ifndef __ASM_PMAP_H__
+#define __
On Fri, 20 May 2022, Julien Grall wrote:
> From: Wei Liu
>
> The basic idea is like Persistent Kernel Map (PKMAP) in Linux. We
> pre-populate all the relevant page tables before the system is fully
> set up.
>
> We will need it on Arm in order to rework the arm64 version of
> xenheap_setup_mappi
> On 20 May 2022, at 13:09, Julien Grall wrote:
>
> From: Wei Liu
>
> The basic idea is like Persistent Kernel Map (PKMAP) in Linux. We
> pre-populate all the relevant page tables before the system is fully
> set up.
>
> We will need it on Arm in order to rework the arm64 version of
> xenhea
On 24/05/2022 03:11, Wei Chen wrote:
Hi Julien,
Hi Wei,
diff --git a/xen/arch/arm/include/asm/pmap.h
b/xen/arch/arm/include/asm/pmap.h
new file mode 100644
index ..74398b4c4fe6
--- /dev/null
+++ b/xen/arch/arm/include/asm/pmap.h
@@ -0,0 +1,32 @@
+#ifndef __ASM_PMAP_H__
+#defin
Hi Julien,
On 2022/5/20 20:09, Julien Grall wrote:
From: Wei Liu
The basic idea is like Persistent Kernel Map (PKMAP) in Linux. We
pre-populate all the relevant page tables before the system is fully
set up.
We will need it on Arm in order to rework the arm64 version of
xenheap_setup_mappings
Hi,
On 20/05/2022 13:09, Julien Grall wrote:
+void __init pmap_unmap(const void *p)
+{
+unsigned int idx;
+unsigned int slot = virt_to_fix((unsigned long)p);
+
+ASSERT(system_state < SYS_STATE_smp_boot);
+ASSERT(slot >= FIXMAP_PMAP_BEGIN && slot <= FIXMAP_PMAP_END);
+ASSERT(i
From: Wei Liu
The basic idea is like Persistent Kernel Map (PKMAP) in Linux. We
pre-populate all the relevant page tables before the system is fully
set up.
We will need it on Arm in order to rework the arm64 version of
xenheap_setup_mappings() as we may need to use pages allocated from
the boot
