* Jeremy Fitzhardinge (jeremy@xxxxxxxx) wrote:
> Seems to work OK for native and Xen. I had to play a bit with the
> paravirt-sched-clock patch to deal with the VMI changes. Zach, can you
> check that it still works?
Cool, thanks for the rebase. Here's some small fixes.
Minor issue with CONFIG_STACK_UNWIND in -mm vs. pda-to-percpu:
diff -r a5e50a2e914a include/asm-i386/unwind.h
--- a/include/asm-i386/unwind.h Tue Apr 10 16:20:13 2007 -0700
+++ b/include/asm-i386/unwind.h Tue Apr 10 16:34:58 2007 -0700
@@ -71,7 +71,7 @@ static inline void arch_unw_init_blocked
info->regs.xss = __KERNEL_DS;
info->regs.xds = __USER_DS;
info->regs.xes = __USER_DS;
- info->regs.xfs = __KERNEL_PDA;
+ info->regs.xfs = __KERNEL_PERCPU;
}
extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *,
Another issue when !SMP from xen-smp.patch. leave_mm was SMP only before,
it basically still is except for one call from xen_exit_mmap(). This is
the simplest sol'n.
diff -r a5e50a2e914a include/asm-i386/mmu_context.h
--- a/include/asm-i386/mmu_context.h Tue Apr 10 16:20:13 2007 -0700
+++ b/include/asm-i386/mmu_context.h Tue Apr 10 16:45:58 2007 -0700
@@ -41,9 +41,11 @@ static inline void enter_lazy_tlb(struct
*/
static inline void leave_mm (unsigned long cpu)
{
+#ifdef CONFIG_SMP
if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
BUG();
cpu_clear(cpu, per_cpu(cpu_tlbstate, cpu).active_mm->cpu_vm_mask);
+#endif
load_cr3(swapper_pg_dir);
}
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