On Mon, Jul 1, 2013 at 7:48 AM, Ben Guthro <benjamin.guthro@xxxxxxxxxx> wrote:
> In version 3.4 acpi_os_prepare_sleep() got introduced in parallel with
> reduced hardware sleep support, and the two changes didn't get
> synchronized: The new code doesn't call the hook function (if so
> requested). Fix this, requiring a boolean parameter to be added to the
> hook function to distinguish "extended" from "legacy" sleep.
>
> This requires adjusting TXT, but the adjustments only go as far as
> failing the extended mode call (since, looking at the TXT interface,
> there doesn't even appear to be precautions to deal with that
> alternative interface).
>
> The hypervisor change underlying this is commit 62d1a69 ("ACPI: support
> v5 (reduced HW) sleep interface") on the master branch of
> git://xenbits.xen.org/xen.git.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> Signed-off-by: Ben Guthro <benjamin.guthro@xxxxxxxxxx>
> Cc: Richard L Maliszewski <richard.l.maliszewski@xxxxxxxxx>
> Cc: Gang Wei <gang.wei@xxxxxxxxx>
> Cc: Shane Wang <shane.wang@xxxxxxxxx>
> Cc: Bob Moore <robert.moore@xxxxxxxxx>
> Cc: Rafael J. Wysocki <rjw@xxxxxxx>
> Cc: linux-acpi@xxxxxxxxxxxxxxx
> Cc: tboot-devel@xxxxxxxxxxxxxxxxxxxxx
>
> v2: Extend description to include reference to hypervisor side change
> v3: Split into multiple patches, separating subsystems
> Remove bool parameters, in favor of u8
> v4: Remove linux/acpi.h dependencies
> Further patch split to break out acpica from OSL
> More bool vs u8 fixes
> v5: Fix build of consumers of acpi_os_prepare_sleep() interface change,
> so intermediate builds of partial patch series will not fail.
> v6: Rebased to linux-pm linux-next branch
> Added warning in tboot early return code
> Added Reviewed-by lines
>
> Ben Guthro (5):
> acpi: Remove need to include linux/acpi.h in common acpica code
> acpi: Call acpi_os_prepare_sleep hook in reduced hardware sleep path
> acpi/xen/tboot: Adjust linux acpi OS functions to new extended
> parameter
> x86/tboot: Fail extended mode reduced hardware sleep
> xen/acpi: notify xen when reduced hardware sleep is available
Rafael, Bob -
Is this version of the series something that you may consider taking?
If not - is there something specific you would like to see addressed?
Thanks for your time.
Ben
>
> arch/x86/kernel/tboot.c | 9 ++++++++-
> drivers/acpi/acpica/hwesleep.c | 7 +++++++
> drivers/acpi/acpica/hwsleep.c | 3 +--
> drivers/acpi/osl.c | 16 ++++++++--------
> drivers/xen/acpi.c | 26 +++++++++++++-------------
> include/acpi/acpiosxf.h | 6 ++++++
> include/linux/acpi.h | 9 +++------
> include/xen/acpi.h | 4 ++--
> include/xen/interface/platform.h | 7 ++++---
> 9 files changed, 52 insertions(+), 35 deletions(-)
>
> --
> 1.7.9.5
>
>
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> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel
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