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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-07-28 12:56:26 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-08-03 05:46:56 +0300 |
| commit | 940185910f9821226c673d3ee5535afab31b9865 (patch) | |
| tree | 33c7af4b2c65dd9215d51de5815884bb8e310f3a /arch/x86/cpu | |
| parent | 549c6f47e67546e1fee87c0bae2ab84af9a9a693 (diff) | |
| download | u-boot-940185910f9821226c673d3ee5535afab31b9865.tar.xz | |
x86: call32: Append appropriate suffixes
Assembler is not happy:
arch/x86/cpu/call32.S: Assembler messages:
arch/x86/cpu/call32.S:36: Warning: no instruction mnemonic suffix given and no register operands; using default for `retf'
Fix this by adding appropriate suffixes to the assembler commands.
Fixes: 6f92ed8f1abf ("x86: Add a way to call 32-bit code from 64-bit mode")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/cpu')
| -rw-r--r-- | arch/x86/cpu/call32.S | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/cpu/call32.S b/arch/x86/cpu/call32.S index e185b9a42b..e641e781c0 100644 --- a/arch/x86/cpu/call32.S +++ b/arch/x86/cpu/call32.S @@ -32,8 +32,7 @@ cpu_call32: push %rdi /* 32-bit code segment */ lea compat(%rip), %rax push %rax - .byte 0x48 /* REX prefix to force 64-bit far return */ - retf + retfq .code32 compat: /* @@ -60,4 +59,4 @@ compat: /* Jump to the required target */ pushl %edi /* 32-bit code segment */ pushl %esi /* 32-bit target address */ - retf + retfl |