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| author | Brijesh Singh <brijesh.singh@amd.com> | 2024-01-25 22:11:07 -0600 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-01-29 17:26:30 +0100 |
| commit | 1f568d36361b4891696280b719ca4b142db872ba (patch) | |
| tree | 6642d7119bd4c48bf12f17febec63fef2765671d /arch/x86/include/asm/sev.h | |
| parent | 94b36bc244bb134ec616dd3f2d37343cd8c1be54 (diff) | |
| download | lwn-1f568d36361b4891696280b719ca4b142db872ba.tar.gz lwn-1f568d36361b4891696280b719ca4b142db872ba.zip | |
x86/fault: Add helper for dumping RMP entries
This information will be useful for debugging things like page faults
due to RMP access violations and RMPUPDATE failures.
[ mdr: move helper to standalone patch, rework dump logic as suggested
by Boris. ]
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240126041126.1927228-8-michael.roth@amd.com
Diffstat (limited to 'arch/x86/include/asm/sev.h')
| -rw-r--r-- | arch/x86/include/asm/sev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h index 01ce61b283a3..2c53e3de0b71 100644 --- a/arch/x86/include/asm/sev.h +++ b/arch/x86/include/asm/sev.h @@ -247,9 +247,11 @@ static inline u64 sev_get_status(void) { return 0; } #ifdef CONFIG_KVM_AMD_SEV bool snp_probe_rmptable_info(void); int snp_lookup_rmpentry(u64 pfn, bool *assigned, int *level); +void snp_dump_hva_rmpentry(unsigned long address); #else static inline bool snp_probe_rmptable_info(void) { return false; } static inline int snp_lookup_rmpentry(u64 pfn, bool *assigned, int *level) { return -ENODEV; } +static inline void snp_dump_hva_rmpentry(unsigned long address) {} #endif #endif |