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| author | Thomas Gleixner <tglx@linutronix.de> | 2019-02-14 22:26:50 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-02-14 22:26:50 +0100 |
| commit | d869f86645fc07dc83b89b68f1a22d91ebe29439 (patch) | |
| tree | a3c2c1167bb34c8d0367d77e1a5734fc842d9f30 /arch/x86/entry/entry_64_compat.S | |
| parent | 030fc443aef663df71cd834331fd8f1ec10c30c0 (diff) | |
| parent | 74e96711e3379fc66630f2a1d184947f80cf2c48 (diff) | |
| download | linux-d869f86645fc07dc83b89b68f1a22d91ebe29439.tar.gz | |
Merge branch 'linus' into irq/core
Pick up upstream changes to avoid conflicts for pending patches.
Diffstat (limited to 'arch/x86/entry/entry_64_compat.S')
| -rw-r--r-- | arch/x86/entry/entry_64_compat.S | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index 8eaf8952c408..39913770a44d 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -361,7 +361,8 @@ ENTRY(entry_INT80_compat) /* Need to switch before accessing the thread stack. */ SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi - movq %rsp, %rdi + /* In the Xen PV case we already run on the thread stack. */ + ALTERNATIVE "movq %rsp, %rdi", "jmp .Lint80_keep_stack", X86_FEATURE_XENPV movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp pushq 6*8(%rdi) /* regs->ss */ @@ -370,8 +371,9 @@ ENTRY(entry_INT80_compat) pushq 3*8(%rdi) /* regs->cs */ pushq 2*8(%rdi) /* regs->ip */ pushq 1*8(%rdi) /* regs->orig_ax */ - pushq (%rdi) /* pt_regs->di */ +.Lint80_keep_stack: + pushq %rsi /* pt_regs->si */ xorl %esi, %esi /* nospec si */ pushq %rdx /* pt_regs->dx */ |