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
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 that
were not checked against the list of BIOS reserved addresses,
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