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authorTom Lendacky <thomas.lendacky@amd.com>2017-07-17 16:10:00 -0500
committerIngo Molnar <mingo@kernel.org>2017-07-18 11:37:58 +0200
commitf7750a79568788473c5e8092ee58a52248f34329 (patch)
tree7e179f9a50f488b5a395a8989a7ab9d9981851ca /arch/x86/pci
parentaac7b79eea6118dee3da9b99dcd564471672806d (diff)
downloadlinux-f7750a79568788473c5e8092ee58a52248f34329.tar.bz2
x86, mpparse, x86/acpi, x86/PCI, x86/dmi, SFI: Use memremap() for RAM mappings
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 <thomas.lendacky@amd.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@suse.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Dave Young <dyoung@redhat.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Larry Woodman <lwoodman@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Toshimitsu Kani <toshi.kani@hpe.com> Cc: kasan-dev@googlegroups.com Cc: kvm@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-efi@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/b13fccb9abbd547a7eef7b1fdfc223431b211c88.1500319216.git.thomas.lendacky@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/common.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index dbe2132b0ed4..7a5350d08cef 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -674,7 +674,7 @@ int pcibios_add_device(struct pci_dev *dev)
pa_data = boot_params.hdr.setup_data;
while (pa_data) {
- data = ioremap(pa_data, sizeof(*rom));
+ data = memremap(pa_data, sizeof(*rom), MEMREMAP_WB);
if (!data)
return -ENOMEM;
@@ -693,7 +693,7 @@ int pcibios_add_device(struct pci_dev *dev)
}
}
pa_data = data->next;
- iounmap(data);
+ memunmap(data);
}
set_dma_domain_ops(dev);
set_dev_domain_options(dev);