On 9/24/19 1:04 PM, Steve Wahl wrote:
> Given that, would you feel better with A) the way I have it, B) your
> rewrite, or C) with an inline comment for each part of the loop:
>
> pmd = fixup_pointer(level2_kernel_pgt, physaddr);
>
> /* invalidate pages before the kernel image */
>
On Mon, Sep 23, 2019 at 02:19:46PM -0700, Dave Hansen wrote:
> On 9/23/19 11:15 AM, Steve Wahl wrote:
> > pmd = fixup_pointer(level2_kernel_pgt, physaddr);
> > - for (i = 0; i < PTRS_PER_PMD; i++) {
> > + for (i = 0; i < pmd_index((unsigned long)_text); i++)
> > + pmd[i] &=
On Mon, Sep 23, 2019 at 11:49:44AM -0700, h...@zytor.com wrote:
> On September 23, 2019 11:15:20 AM PDT, Steve Wahl wrote:
> >Our hardware (UV aka Superdome Flex) has address ranges marked
> >reserved by the BIOS. Access to these ranges is caught as an error,
> >causing the BIOS to halt the
On 9/23/19 11:15 AM, Steve Wahl wrote:
> pmd = fixup_pointer(level2_kernel_pgt, physaddr);
> - for (i = 0; i < PTRS_PER_PMD; i++) {
> + for (i = 0; i < pmd_index((unsigned long)_text); i++)
> + pmd[i] &= ~_PAGE_PRESENT;
> +
> + for (; i <= pmd_index((unsigned
On September 23, 2019 11:15:20 AM PDT, Steve Wahl wrote:
>Our hardware (UV aka Superdome Flex) has address ranges marked
>reserved by the BIOS. Access to these ranges is caught as an error,
>causing the BIOS to halt the system.
>
>Initial page tables mapped a large range of physical addresses
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