>>> On 19.10.18 at 16:28, <wei.l...@citrix.com> wrote:
> @@ -1337,8 +1339,15 @@ static int fixup_page_fault(unsigned long addr, struct
> cpu_user_regs *regs)
> {
> if ( !(regs->error_code & (PFEC_user_mode | PFEC_reserved_bit)) &&
> (addr >= GDT_LDT_VIRT_START) && (addr < GDT_LDT_VIRT_END) )
> + {
> +#ifdef CONFIG_PV
> return handle_gdt_ldt_mapping_fault(
> addr - GDT_LDT_VIRT_START, regs);
> +#else
> + ASSERT_UNREACHABLE();
I'm not convinced: A buggy access to this range should lead to
an unhandled #PF, not an assertion failure.
Jan
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