On 11/19/2014 08:43 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 06:14:06PM +0100, Juergen Gross wrote:
On 11/14/2014 05:47 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+
On Fri, Nov 14, 2014 at 06:14:06PM +0100, Juergen Gross wrote:
> On 11/14/2014 05:47 PM, Konrad Rzeszutek Wilk wrote:
> >On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
> >>On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
> >>+ mfn_save = virt_to_mfn(buf);
> >>+
>
On Fri, Nov 14, 2014 at 06:14:06PM +0100, Juergen Gross wrote:
On 11/14/2014 05:47 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+ mfn_save = virt_to_mfn(buf);
+
+ while
On 11/19/2014 08:43 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 06:14:06PM +0100, Juergen Gross wrote:
On 11/14/2014 05:47 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+
On 11/14/2014 05:47 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+ mfn_save = virt_to_mfn(buf);
+
+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
So the 'list' is constructed by
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
> On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
> + mfn_save = virt_to_mfn(buf);
> +
> + while (xen_remap_mfn != INVALID_P2M_ENTRY) {
> >>>
> >>>So the 'list' is constructed by going forward - that is from
On 14/11/14 04:53, Juergen Gross wrote:
>
> Using BUG() instead would make the code less complex. Do you really
> think xen_update_mem_tables() would ever fail in a sane system?
>
> - set_phys_to_machine() would fail only on a memory shortage. Just
> going on without adding more memory
On 14/11/14 04:53, Juergen Gross wrote:
Using BUG() instead would make the code less complex. Do you really
think xen_update_mem_tables() would ever fail in a sane system?
- set_phys_to_machine() would fail only on a memory shortage. Just
going on without adding more memory wouldn't lead
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+ mfn_save = virt_to_mfn(buf);
+
+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
So the 'list' is constructed by going forward - that is from low-numbered
PFNs to higher
On 11/14/2014 05:47 PM, Konrad Rzeszutek Wilk wrote:
On Fri, Nov 14, 2014 at 05:53:19AM +0100, Juergen Gross wrote:
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+ mfn_save = virt_to_mfn(buf);
+
+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
So the 'list' is constructed by
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+ mfn_save = virt_to_mfn(buf);
+
+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
So the 'list' is constructed by going forward - that is from low-numbered
PFNs to higher numbered ones. But the 'xen_remap_mfn' is going the
other
> >>+ mfn_save = virt_to_mfn(buf);
> >>+
> >>+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
> >
> >So the 'list' is constructed by going forward - that is from low-numbered
> >PFNs to higher numbered ones. But the 'xen_remap_mfn' is going the
> >other way - from the highest PFN to the lowest
+ mfn_save = virt_to_mfn(buf);
+
+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
So the 'list' is constructed by going forward - that is from low-numbered
PFNs to higher numbered ones. But the 'xen_remap_mfn' is going the
other way - from the highest PFN to the lowest PFN.
Won't that
On 11/13/2014 08:56 PM, Konrad Rzeszutek Wilk wrote:
+ mfn_save = virt_to_mfn(buf);
+
+ while (xen_remap_mfn != INVALID_P2M_ENTRY) {
So the 'list' is constructed by going forward - that is from low-numbered
PFNs to higher numbered ones. But the 'xen_remap_mfn' is going the
other
On 11/12/2014 10:45 PM, Konrad Rzeszutek Wilk wrote:
On Tue, Nov 11, 2014 at 06:43:40AM +0100, Juergen Gross wrote:
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index a8a1a3d..d3e492b 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1223,6 +1223,10 @@ static void __init
On Tue, Nov 11, 2014 at 06:43:40AM +0100, Juergen Gross wrote:
> Early in the boot process the memory layout of a pv-domain is changed
> to match the E820 map (either the host one for Dom0 or the Xen one)
> regarding placement of RAM and PCI holes. This requires removing memory
> pages initially
On Tue, Nov 11, 2014 at 06:43:40AM +0100, Juergen Gross wrote:
Early in the boot process the memory layout of a pv-domain is changed
to match the E820 map (either the host one for Dom0 or the Xen one)
regarding placement of RAM and PCI holes. This requires removing memory
pages initially
On 11/12/2014 10:45 PM, Konrad Rzeszutek Wilk wrote:
On Tue, Nov 11, 2014 at 06:43:40AM +0100, Juergen Gross wrote:
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index a8a1a3d..d3e492b 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1223,6 +1223,10 @@ static void __init
On 11/11/2014 12:45 PM, Andrew Cooper wrote:
On 11/11/14 05:43, Juergen Gross wrote:
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index fa75842..f67f8cf 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -268,6 +271,22 @@ static void p2m_init(unsigned long *p2m)
On 11/11/14 05:43, Juergen Gross wrote:
> diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
> index fa75842..f67f8cf 100644
> --- a/arch/x86/xen/p2m.c
> +++ b/arch/x86/xen/p2m.c
> @@ -268,6 +271,22 @@ static void p2m_init(unsigned long *p2m)
> p2m[i] = INVALID_P2M_ENTRY;
> }
>
On 11/11/14 05:43, Juergen Gross wrote:
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index fa75842..f67f8cf 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -268,6 +271,22 @@ static void p2m_init(unsigned long *p2m)
p2m[i] = INVALID_P2M_ENTRY;
}
+static
On 11/11/2014 12:45 PM, Andrew Cooper wrote:
On 11/11/14 05:43, Juergen Gross wrote:
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index fa75842..f67f8cf 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -268,6 +271,22 @@ static void p2m_init(unsigned long *p2m)
Early in the boot process the memory layout of a pv-domain is changed
to match the E820 map (either the host one for Dom0 or the Xen one)
regarding placement of RAM and PCI holes. This requires removing memory
pages initially located at positions not suitable for RAM and adding
them later at
Early in the boot process the memory layout of a pv-domain is changed
to match the E820 map (either the host one for Dom0 or the Xen one)
regarding placement of RAM and PCI holes. This requires removing memory
pages initially located at positions not suitable for RAM and adding
them later at
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