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authorLinus Torvalds <torvalds@linux-foundation.org>2017-03-13 00:18:49 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-03-13 00:18:49 +0300
commit5a45a5a881aeb82ce31dd1886afe04146965df23 (patch)
tree54bae39fab09a64cf6b07ac241ab7afbeb7f6ef2 /include
parentecade114250555720aa8a6232b09a2ce2e47ea99 (diff)
parent2c4ea6e28dbf15ab93632c5c189f3948366b8885 (diff)
downloadlinux-5a45a5a881aeb82ce31dd1886afe04146965df23.tar.xz
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner: - a fix for the kexec/purgatory regression which was introduced in the merge window via an innocent sparse fix. We could have reverted that commit, but on deeper inspection it turned out that the whole machinery is neither documented nor robust. So a proper cleanup was done instead - the fix for the TLB flush issue which was discovered recently - a simple typo fix for a reboot quirk * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tlb: Fix tlb flushing when lguest clears PGE kexec, x86/purgatory: Unbreak it and clean it up x86/reboot/quirks: Fix typo in ASUS EeeBook X205TA reboot quirk
Diffstat (limited to 'include')
-rw-r--r--include/linux/purgatory.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/purgatory.h b/include/linux/purgatory.h
new file mode 100644
index 000000000000..d60d4e278609
--- /dev/null
+++ b/include/linux/purgatory.h
@@ -0,0 +1,23 @@
+#ifndef _LINUX_PURGATORY_H
+#define _LINUX_PURGATORY_H
+
+#include <linux/types.h>
+#include <crypto/sha.h>
+#include <uapi/linux/kexec.h>
+
+struct kexec_sha_region {
+ unsigned long start;
+ unsigned long len;
+};
+
+/*
+ * These forward declarations serve two purposes:
+ *
+ * 1) Make sparse happy when checking arch/purgatory
+ * 2) Document that these are required to be global so the symbol
+ * lookup in kexec works
+ */
+extern struct kexec_sha_region purgatory_sha_regions[KEXEC_SEGMENT_MAX];
+extern u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE];
+
+#endif