On Tue, Jan 24, 2023 at 2:54 AM Samuel Thibault <samuel.thiba...@gnu.org> wrote:
> Flávio Cruz, le mar. 24 janv. 2023 01:15:15 -0500, a ecrit: > > + int kernel_id; > > + unsigned long flags; > > + > > + cpu_intr_save(&flags); > > + > > + kernel_id = apic_get_cpu_kernel_id(apic_get_current_cpu()); > > + > > + cpu_intr_restore(flags); > > + > > + return kernel_id; > > > > > > Might be unrelated to this change, but will this be portable for x86_64? > It > > seems we either should use uint32_t to store EFLAGS or use pushfq/popfq > to get > > RFLAGS instead. > > cpu_get_eflags will already use pushfq/popfq, won't it? (since it takes > the unsigned long output parameter. > I tried it in compiler explorer and it shows we have to use pushfq explicitly: https://godbolt.org/z/MYjPaEh31 > > Samuel >
