x86/tdx: Drop flags from __tdx_hypercall()

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After TDX_HCALL_ISSUE_STI got dropped, the only flag left is
TDX_HCALL_HAS_OUTPUT. The flag indicates if the caller wants to see
tdx_hypercall_args updated based on the hypercall output.

Drop the flags and provide __tdx_hypercall_ret() that matches
TDX_HCALL_HAS_OUTPUT semantics.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20230321003511.9469-1-kirill.shutemov%40linux.intel.com

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Kirill A. Shutemov 2023-03-21 03:35:11 +03:00 • committed by Dave Hansen

parent e8d018dd02

commit 7a3a401874

4 changed files with 51 additions and 42 deletions

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4

arch/x86/boot/compressed/tdx.c

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66

arch/x86/coco/tdx/tdcall.S

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18

arch/x86/coco/tdx/tdx.c

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5

arch/x86/include/asm/shared/tdx.h

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