diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2023-03-21 03:35:11 +0300 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2023-03-22 11:36:05 -0700 |
| commit | 7a3a401874bea02f568aa416ac29170d8cde0dc2 (patch) | |
| tree | 6a54f38698e90f3c2c8f3771f662ddb02ed4d822 /arch/x86/boot | |
| parent | e8d018dd0257f744ca50a729e3d042cf2ec9da65 (diff) | |
x86/tdx: Drop flags from __tdx_hypercall()
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
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/compressed/tdx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/boot/compressed/tdx.c b/arch/x86/boot/compressed/tdx.c index 918a7606f53c..2d81d3cc72a1 100644 --- a/arch/x86/boot/compressed/tdx.c +++ b/arch/x86/boot/compressed/tdx.c @@ -26,7 +26,7 @@ static inline unsigned int tdx_io_in(int size, u16 port) .r14 = port, }; - if (__tdx_hypercall(&args, TDX_HCALL_HAS_OUTPUT)) + if (__tdx_hypercall_ret(&args)) return UINT_MAX; return args.r11; @@ -43,7 +43,7 @@ static inline void tdx_io_out(int size, u16 port, u32 value) .r15 = value, }; - __tdx_hypercall(&args, 0); + __tdx_hypercall(&args); } static inline u8 tdx_inb(u16 port) |