On Wed, Jun 21, 2023 at 03:39:44PM -0400, Steven Sistare wrote: > >> - jmp mainloop > >> + # should this test suspend? > >> + mov (suspend_me),%eax > >> + cmp $0,%eax > >> + je mainloop > >> + > >> + # are we waking after suspend? do not suspend again. > >> + mov $suspended,%eax > > > > So IIUC then it'll use 4 bytes over 100MB range which means we need at > > least 100MB+4bytes.. not obvious for a HIGH_ADDR definition to me.. > > > > Could we just define a variable inside the section like suspend_me? > > No, because modifications to this memory backing the boot block are not > copied to the destination. The dest reads a clean copy of the boot block > from disk, as specified by the qemu command line arguments.
Oh okay, can we use HIGH_ADDR-4, then? I just still think it'll be nice if we can keep HIGH_ADDR the high bar of the whole range. Thanks, -- Peter Xu
