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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2023-06-06 17:26:37 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-06-06 19:25:57 +0300 |
| commit | 75d090fd167acab4d7eda7e2b65729e877c0fd64 (patch) | |
| tree | 50b5ea974fee5ca5bee0dd213e090fd1e993db43 /arch/x86/include/asm/shared/tdx.h | |
| parent | c2b353ae24d6fecddcc599529ad8319282494781 (diff) | |
| download | linux-75d090fd167acab4d7eda7e2b65729e877c0fd64.tar.xz | |
x86/tdx: Add unaccepted memory support
Hookup TDX-specific code to accept memory.
Accepting the memory is done with ACCEPT_PAGE module call on every page
in the range. MAP_GPA hypercall is not required as the unaccepted memory
is considered private already.
Extract the part of tdx_enc_status_changed() that does memory acceptance
in a new helper. Move the helper tdx-shared.c. It is going to be used by
both main kernel and decompressor.
[ bp: Fix the INTEL_TDX_GUEST=y, KVM_GUEST=n build. ]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230606142637.5171-10-kirill.shutemov@linux.intel.com
Diffstat (limited to 'arch/x86/include/asm/shared/tdx.h')
| -rw-r--r-- | arch/x86/include/asm/shared/tdx.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h index 1ff0ee822961..19228beb4894 100644 --- a/arch/x86/include/asm/shared/tdx.h +++ b/arch/x86/include/asm/shared/tdx.h @@ -91,5 +91,7 @@ struct tdx_module_output { u64 __tdx_module_call(u64 fn, u64 rcx, u64 rdx, u64 r8, u64 r9, struct tdx_module_output *out); +bool tdx_accept_memory(phys_addr_t start, phys_addr_t end); + #endif /* !__ASSEMBLY__ */ #endif /* _ASM_X86_SHARED_TDX_H */ |