On Tue, Jan 13, 2015 at 04:12:29PM +0800, Li, ZhenHua wrote:
> Current status:
> 1. Use old root entry table,
> 2. Copy old context entry tables.
> 3. Copy old page tables.
> 4. Allocate new page table when device driver is loading.
>
> I remember the progress we discussed was this. Checking the
On 01/12/15 at 10:29am, Vivek Goyal wrote:
> On Mon, Jan 12, 2015 at 04:22:08PM +0100, Joerg Roedel wrote:
> > It looks like you are still copying the io-page-tables from the old
> > kernel into the kdump kernel, is that right? With the approach that was
> > proposed you only need to copy over the
On 01/12/2015 11:22 PM, Joerg Roedel wrote:
On Mon, Jan 12, 2015 at 03:06:20PM +0800, Li, Zhen-Hua wrote:
+
+#ifdef CONFIG_CRASH_DUMP
+
+/*
+ * Fix Crashdump failure caused by leftover DMA through a hardware IOMMU
+ *
+ * Fixes the crashdump kernel to deal with an active iommu and legacy
+ * DMA
On Mon, Jan 12, 2015 at 11:15:38AM -0500, Vivek Goyal wrote:
> On Mon, Jan 12, 2015 at 05:06:46PM +0100, Joerg Roedel wrote:
> > On Mon, Jan 12, 2015 at 10:29:19AM -0500, Vivek Goyal wrote:
> > > Kdump has the notion of backup region. Where certain parts of old kernels
> > > memory can be moved to
On Mon, Jan 12, 2015 at 05:06:46PM +0100, Joerg Roedel wrote:
> On Mon, Jan 12, 2015 at 10:29:19AM -0500, Vivek Goyal wrote:
> > Kdump has the notion of backup region. Where certain parts of old kernels
> > memory can be moved to a different location (first 640K on x86 as of now)
> > and new kernel
On Mon, Jan 12, 2015 at 10:29:19AM -0500, Vivek Goyal wrote:
> Kdump has the notion of backup region. Where certain parts of old kernels
> memory can be moved to a different location (first 640K on x86 as of now)
> and new kernel can make use of this memory now.
>
> So we will have to just make su
On Mon, Jan 12, 2015 at 04:22:08PM +0100, Joerg Roedel wrote:
> On Mon, Jan 12, 2015 at 03:06:20PM +0800, Li, Zhen-Hua wrote:
> > +
> > +#ifdef CONFIG_CRASH_DUMP
> > +
> > +/*
> > + * Fix Crashdump failure caused by leftover DMA through a hardware IOMMU
> > + *
> > + * Fixes the crashdump kernel to
On Mon, Jan 12, 2015 at 03:06:20PM +0800, Li, Zhen-Hua wrote:
> +
> +#ifdef CONFIG_CRASH_DUMP
> +
> +/*
> + * Fix Crashdump failure caused by leftover DMA through a hardware IOMMU
> + *
> + * Fixes the crashdump kernel to deal with an active iommu and legacy
> + * DMA from the (old) panicked kernel
Add structure type domain_values_entry used for kdump;
Add context entry functions needed for kdump.
Bill Sumner:
Original version;
Li, Zhenhua:
Changed the name of new functions, make them consistent with current
context get/set functions.
Signed-off-by: Bill Sumner
Signed-off-by:
