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authorPaolo Bonzini <pbonzini@redhat.com>2018-10-19 15:24:24 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2018-10-19 15:24:24 +0200
commite42b4a507efa19a90c63e7968c93c4f82d3bc805 (patch)
treecc7bf34323b26d3f53d4a9ec4ca1b5c52bc361cd /arch/x86/include/asm/mem_encrypt.h
parent1e58e5e59148916fa43444a406335a990783fb78 (diff)
parente4e11cc0f81ee7be17d6f6fb96128a6d51c0e838 (diff)
Merge tag 'kvmarm-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for 4.20 - Improved guest IPA space support (32 to 52 bits) - RAS event delivery for 32bit - PMU fixes - Guest entry hardening - Various cleanups
Diffstat (limited to 'arch/x86/include/asm/mem_encrypt.h')
-rw-r--r--arch/x86/include/asm/mem_encrypt.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
index c0643831706e..616f8e637bc3 100644
--- a/arch/x86/include/asm/mem_encrypt.h
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -48,10 +48,13 @@ int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size);
/* Architecture __weak replacement functions */
void __init mem_encrypt_init(void);
+void __init mem_encrypt_free_decrypted_mem(void);
bool sme_active(void);
bool sev_active(void);
+#define __bss_decrypted __attribute__((__section__(".bss..decrypted")))
+
#else /* !CONFIG_AMD_MEM_ENCRYPT */
#define sme_me_mask 0ULL
@@ -77,6 +80,8 @@ early_set_memory_decrypted(unsigned long vaddr, unsigned long size) { return 0;
static inline int __init
early_set_memory_encrypted(unsigned long vaddr, unsigned long size) { return 0; }
+#define __bss_decrypted
+
#endif /* CONFIG_AMD_MEM_ENCRYPT */
/*
@@ -88,6 +93,8 @@ early_set_memory_encrypted(unsigned long vaddr, unsigned long size) { return 0;
#define __sme_pa(x) (__pa(x) | sme_me_mask)
#define __sme_pa_nodebug(x) (__pa_nodebug(x) | sme_me_mask)
+extern char __start_bss_decrypted[], __end_bss_decrypted[], __start_bss_decrypted_unused[];
+
#endif /* __ASSEMBLY__ */
#endif /* __X86_MEM_ENCRYPT_H__ */