On Wed, Dec 05, 2018 at 03:58:14PM +0100, Borislav Petkov wrote: >On Thu, Nov 29, 2018 at 04:16:27PM +0800, Chao Fan wrote: >> To fix the conflict between KASLR and memory-hotremove, memory >> information in SRAT table is necessary. >> >> ACPI SRAT (System/Static Resource Affinity Table) can show the details >> about memory ranges, including ranges of memory provided by hot-added >> memory devices. SRAT table must be introduced by RSDP pointer (Root >> System Description Pointer). So RSDP should be found firstly. >> >> When booting form KEXEC/EFI/BIOS, the methods to find RSDP pointer >> are different. When booting from KEXEC, 'acpi_rsdp' may have been >> added to cmdline, so parse the cmdline and find the RSDP pointer. >> >> Signed-off-by: Chao Fan <[email protected]> >> --- >> arch/x86/boot/compressed/acpitb.c | 33 +++++++++++++++++++++++++++++++ >> arch/x86/boot/compressed/misc.c | 5 +++++ >> arch/x86/boot/compressed/misc.h | 4 ++++ >> lib/kstrtox.c | 5 +++++ >> 4 files changed, 47 insertions(+) >> create mode 100644 arch/x86/boot/compressed/acpitb.c >> >> diff --git a/arch/x86/boot/compressed/acpitb.c >> b/arch/x86/boot/compressed/acpitb.c >> new file mode 100644 >> index 000000000000..614c45655cff >> --- /dev/null >> +++ b/arch/x86/boot/compressed/acpitb.c > >Also, I guess calling that file simply "acpi.c" is good enough.
Fine, so change it next version. > >> @@ -0,0 +1,33 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +#define BOOT_CTYPE_H >> +#include "misc.h" >> +#include "error.h" >> + >> +#include <linux/efi.h> >> +#include <asm/efi.h> > >asm/ headers come after linux/ header. Will change the place of header. Thanks, Chao Fan > >... > >Thx. > >-- >Regards/Gruss, > Boris. > >Good mailing practices for 400: avoid top-posting and trim the reply. > >
