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Revision cfc860253abd73e1681696c08ea268d33285a2c4 authored by Paul Mackerras on 20 September 2013, 23:53:28 UTC, committed by Paolo Bonzini on 10 October 2013, 09:40:07 UTC 
KVM: PPC: Book3S HV: Fix typo in saving DSCR
 
This fixes a typo in the code that saves the guest DSCR (Data Stream
Control Register) into the kvm_vcpu_arch struct on guest exit.  The
effect of the typo was that the DSCR value was saved in the wrong place,
so changes to the DSCR by the guest didn't persist across guest exit
and entry, and some host kernel memory got corrupted.

Cc: stable@vger.kernel.org [v3.1+]
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent d0d538b
Raw File
crypto.h 
#ifndef _FS_CEPH_CRYPTO_H
#define _FS_CEPH_CRYPTO_H

#include <linux/ceph/types.h>
#include <linux/ceph/buffer.h>

/*
 * cryptographic secret
 */
struct ceph_crypto_key {
	int type;
	struct ceph_timespec created;
	int len;
	void *key;
};

static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
{
	if (key)
		kfree(key->key);
}

extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
				 const struct ceph_crypto_key *src);
extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
				  void **p, void *end);
extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
				  void **p, void *end);
extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);

/* crypto.c */
extern int ceph_decrypt(struct ceph_crypto_key *secret,
			void *dst, size_t *dst_len,
			const void *src, size_t src_len);
extern int ceph_encrypt(struct ceph_crypto_key *secret,
			void *dst, size_t *dst_len,
			const void *src, size_t src_len);
extern int ceph_decrypt2(struct ceph_crypto_key *secret,
			void *dst1, size_t *dst1_len,
			void *dst2, size_t *dst2_len,
			const void *src, size_t src_len);
extern int ceph_encrypt2(struct ceph_crypto_key *secret,
			 void *dst, size_t *dst_len,
			 const void *src1, size_t src1_len,
			 const void *src2, size_t src2_len);
extern int ceph_crypto_init(void);
extern void ceph_crypto_shutdown(void);

/* armor.c */
extern int ceph_armor(char *dst, const char *src, const char *end);
extern int ceph_unarmor(char *dst, const char *src, const char *end);

#endif
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