On 02/01/16 23:07, Matt Fleming wrote:
> From: Robert Elliott <elliott@xxxxxxx>
>
> Adjust efi_print_memmap to print the real end address of each
> range, not 1 byte beyond. This matches other prints like those for
> SRAT and nosave memory.
>
> While investigating grub persistent memory corruption issues, it
> was helpful to make this table match the ending address convention
> used by:
> * the kernel's e820 table prints
> BIOS-e820: [mem 0x0000001680000000-0x0000001c7fffffff] reserved
> * the kernel's nosave memory prints
> PM: Registered nosave memory: [mem 0x880000000-0xc7fffffff]
> * the kernel's ACPI System Resource Affinity Table prints
> SRAT: Node 1 PXM 1 [mem 0x480000000-0x87fffffff]
> * grub's lsmmap and lsefimmap commands
> reserved 0000001680000000-0000001c7fffffff 00600000 24GiB UC WC WT WB NV
> * the UEFI shell's memmap command
> Reserved 000000007FC00000-000000007FFFFFFF 0000000000000400 0000000000000001
>
> For example, if you grep all the various logs for c7fffffff, you
> won't find the kernel's line if it uses c80000000.
>
> Also, change the closing ) to ] to match the opening [.
>
> old:
> efi: mem61: [Persistent Memory | | | | | | | |WB|WT|WC|UC] range=[0x0000000880000000-0x0000000c80000000) (16384MB)
>
> new:
> efi: mem61: [Persistent Memory | | | | | | | |WB|WT|WC|UC] range=[0x0000000880000000-0x0000000c7fffffff] (16384MB)
>
> Signed-off-by: Robert Elliott <elliott@xxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
> Cc: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
> Cc: Leif Lindholm <leif.lindholm@xxxxxxxxxx>
> Cc: Laszlo Ersek <lersek@xxxxxxxxxx>
> Signed-off-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
> ---
> arch/x86/platform/efi/efi.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> index bdd9477f937c..e80826e6f3a9 100644
> --- a/arch/x86/platform/efi/efi.c
> +++ b/arch/x86/platform/efi/efi.c
> @@ -235,10 +235,10 @@ void __init efi_print_memmap(void)
> char buf[64];
>
> md = p;
> - pr_info("mem%02u: %s range=[0x%016llx-0x%016llx) (%lluMB)\n",
> + pr_info("mem%02u: %s range=[0x%016llx-0x%016llx] (%lluMB)\n",
> i, efi_md_typeattr_format(buf, sizeof(buf), md),
> md->phys_addr,
> - md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT),
> + md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1,
> (md->num_pages >> (20 - EFI_PAGE_SHIFT)));
> }
> #endif /* EFI_DEBUG */
>
For this patch:
Reviewed-by: Laszlo Ersek <lersek@xxxxxxxxxx>
With regard to other arches:
- I think that "arch/arm64/kernel/efi.c" prints stuff like this
already, in reserve_regions(). OK.
- However, I think "arch/ia64/kernel/efi.c" needs a similar patch.
(Maybe your PULL includes such a patch already, but I'm not CC'd on
it.) See in the function efi_init(), near efi_md_typeattr_format().
Thanks
Laszlo
--
To unsubscribe from this list: send the line "unsubscribe linux-efi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
