Messages in this thread | | | Date | Sat, 12 Aug 2017 12:11:34 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH v4] xen: get rid of paravirt op adjust_exception_frame |
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* Juergen Gross <jgross@suse.com> wrote:
> When running as Xen pv-guest the exception frame on the stack contains > %r11 and %rcx additional to the other data pushed by the processor. > > Instead of having a paravirt op being called for each exception type > prepend the Xen specific code to each exception entry. When running as > Xen pv-guest just use the exception entry with prepended instructions, > otherwise use the entry without the Xen specific code. > > Signed-off-by: Juergen Gross <jgross@suse.com> > --- > arch/x86/entry/entry_64.S | 23 ++------- > arch/x86/entry/entry_64_compat.S | 1 - > arch/x86/include/asm/paravirt.h | 5 -- > arch/x86/include/asm/paravirt_types.h | 4 -- > arch/x86/include/asm/proto.h | 3 ++ > arch/x86/include/asm/traps.h | 33 ++++++++++-- > arch/x86/kernel/asm-offsets_64.c | 1 - > arch/x86/kernel/paravirt.c | 3 -- > arch/x86/xen/enlighten_pv.c | 96 +++++++++++++++++++++++------------ > arch/x86/xen/irq.c | 3 -- > arch/x86/xen/xen-asm_64.S | 45 ++++++++++++++-- > arch/x86/xen/xen-ops.h | 1 - > 12 files changed, 140 insertions(+), 78 deletions(-)
Acked-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
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