A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

x86, mpparse, x86/acpi, x86/PCI, x86/dmi, SFI: Use memremap() for RAM mappings

Browse source 
The ioremap() function is intended for mapping MMIO. For RAM, the
memremap() function should be used. Convert calls from ioremap() to
memremap() when re-mapping RAM.

This will be used later by SME to control how the encryption mask is
applied to memory mappings, with certain memory locations being mapped
decrypted vs encrypted.

Signed-off-by: Tom Lendacky <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Reviewed-by: Borislav Petkov <[email protected]>
Cc: Alexander Potapenko <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brijesh Singh <[email protected]>
Cc: Dave Young <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: Larry Woodman <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Matt Fleming <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Radim Krčmář <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Toshimitsu Kani <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/b13fccb9abbd547a7eef7b1fdfc223431b211c88.1500319216.git.thomas.lendacky@amd.com
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Tom Lendacky 2017-07-17 16:10:00 -05:00 • committed by Ingo Molnar
commit f7750a7956
9 changed files with 55 additions and 66 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/firmware/dmi-sysfs.c
View file

@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/io.h>
#include <asm/dmi.h>
#define MAX_ENTRY_TYPE 255 /* Most of these aren't used, but we consider
the top entry type is only 8 bits */
@ -380,7 +381,7 @@ static ssize_t dmi_sel_raw_read_phys32(struct dmi_sysfs_entry *entry,
u8 __iomem *mapped;
ssize_t wrote = 0;
mapped = ioremap(sel->access_method_address, sel->area_length);
mapped = dmi_remap(sel->access_method_address, sel->area_length);
if (!mapped)
return -EIO;
@ -390,7 +391,7 @@ static ssize_t dmi_sel_raw_read_phys32(struct dmi_sysfs_entry *entry,
wrote++;
}
iounmap(mapped);
dmi_unmap(mapped);
return wrote;
}

4
drivers/firmware/pcdp.c
View file

@ -95,7 +95,7 @@ efi_setup_pcdp_console(char *cmdline)
if (efi.hcdp == EFI_INVALID_TABLE_ADDR)
return -ENODEV;
pcdp = early_ioremap(efi.hcdp, 4096);
pcdp = early_memremap(efi.hcdp, 4096);
printk(KERN_INFO "PCDP: v%d at 0x%lx\n", pcdp->rev, efi.hcdp);
if (strstr(cmdline, "console=hcdp")) {
@ -131,6 +131,6 @@ efi_setup_pcdp_console(char *cmdline)
}
out:
early_iounmap(pcdp, 4096);
early_memunmap(pcdp, 4096);
return rc;
}