On Thu, 7 Nov 2019 09:40:49 +0800 Guoheyi <guoh...@huawei.com> wrote:
> On 2019/11/7 1:52, Cornelia Huck wrote: > > On Tue, 5 Nov 2019 17:10:44 +0800 > > Heyi Guo <guoh...@huawei.com> wrote: > > > >> Import Linux header file include/uapi/linux/arm_sdei.h from kernel > >> v5.4-rc5. > >> > >> This is to prepare for qemu SDEI emulation. > >> > >> Signed-off-by: Heyi Guo <guoh...@huawei.com> > >> Cc: Peter Maydell <peter.mayd...@linaro.org> > >> Cc: Dave Martin <dave.mar...@arm.com> > >> Cc: Marc Zyngier <marc.zyng...@arm.com> > >> Cc: Mark Rutland <mark.rutl...@arm.com> > >> Cc: James Morse <james.mo...@arm.com> > >> Cc: "Michael S. Tsirkin" <m...@redhat.com> > >> Cc: Cornelia Huck <coh...@redhat.com> > >> Cc: Paolo Bonzini <pbonz...@redhat.com> > >> --- > >> > >> Notes: > >> v2: > >> - Import arm_sdei.h by running update-linux-headers.sh > >> > >> include/standard-headers/linux/arm_sdei.h | 73 +++++++++++++++++++++++ > >> 1 file changed, 73 insertions(+) > >> create mode 100644 include/standard-headers/linux/arm_sdei.h > > Just a remark that I find it a bit odd that that a header that looks > > arm-specific is in the generic linux/ directory (already in the kernel, > > I know.) Is this for sharing between arm and arm64, maybe? > I don't think arm platforms will use this header. In section 4.1 of SDEI > spec, it says " Both the client and dispatcher of SDEI must execute in > AArch64 state." > So shall we move it to include/standard-headers/asm-arm64/? Well, the kernel already put it into the generic directory... I'd just leave it like that, then; moving it in the kernel is probably too much churn.
