Marcelo Tosatti wrote:
On Mon, May 25, 2009 at 11:47:24AM +0300, Avi Kivity wrote:
The processor is documented to reload the PDPTRs while in PAE mode if any
of the CR4 bits PSE, PGE, or PAE change. Linux relies on this
behaviour when zapping the low mappings of PAE kernels during boot.
The
On Mon, May 25, 2009 at 11:47:24AM +0300, Avi Kivity wrote:
> The processor is documented to reload the PDPTRs while in PAE mode if any
> of the CR4 bits PSE, PGE, or PAE change. Linux relies on this
> behaviour when zapping the low mappings of PAE kernels during boot.
>
> The code already handle
The processor is documented to reload the PDPTRs while in PAE mode if any
of the CR4 bits PSE, PGE, or PAE change. Linux relies on this
behaviour when zapping the low mappings of PAE kernels during boot.
The code already handled changes to CR4.PAE; augment it to also notice changes
to PSE and PGE