d75cd22fdd
Don't conflate sysret and sysexit; they're different instructions with different semantics, and may be in use at the same time (at least within the same kernel, depending on whether its an Intel or AMD system). sysexit - just return to userspace, does no register restoration of any kind; must explicitly atomically enable interrupts. sysret - reloads flags from r11, so no need to explicitly enable interrupts on 64-bit, responsible for restoring usermode %gs Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citirx.com> Cc: xen-devel <xen-devel@lists.xensource.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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.. | ||
Kconfig | ||
Makefile | ||
enlighten.c | ||
grant-table.c | ||
mmu.c | ||
mmu.h | ||
multicalls.c | ||
multicalls.h | ||
setup.c | ||
smp.c | ||
suspend.c | ||
time.c | ||
vdso.h | ||
xen-asm.S | ||
xen-head.S | ||
xen-ops.h |