Re: [PATCH v10 00/21] Introduce ACPI for ARM64 based on ACPI 5.1

From: Hanjun Guo
Date: Fri Mar 20 2015 - 23:17:54 EST

+CC Parth Dixit, Stefano Stabellini.

On 2015å03æ21æ 02:54, Will Deacon wrote:
On Thu, Mar 19, 2015 at 04:09:33AM +0000, Hanjun Guo wrote:
On 2015/3/19 3:05, Will Deacon wrote:
If you can get that in place, I'm not opposed to putting this into
linux-next ahead of the firmware summit in San Jose next week. Note that
this is not a commitment for 4.1, since I'm keen to see the outcomes of
next week before setting anything in stone.

OK, I will stick to this mailing list and respond as soon as I can.

This doesn't even build for me:

$ make ARCH=arm64 CROSS_COMPILE=aarch64-none-linux-gnu- allmodconfig
$ make ARCH=arm64 CROSS_COMPILE=aarch64-none-linux-gnu- Image


In file included from drivers/xen/acpi.c:33:0:

Sorry, I didn't build ACPI with XEN enabled on ARM64.

include/xen/acpi.h: In function âxen_acpi_sleep_registerâ:
include/xen/acpi.h:102:3: error: âacpi_suspend_lowlevelâ undeclared (first use in this function)
acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;

acpi_suspend_lowlevel is defined only for X86 and IA64 for now.

include/xen/acpi.h:102:3: note: each undeclared identifier is reported only once for each function it appears in
drivers/xen/acpi.c: In function âxen_acpi_notify_hypervisor_stateâ:
drivers/xen/acpi.c:61:2: error: implicit declaration of function âHYPERVISOR_dom0_opâ [-Werror=implicit-function-declaration]

And this is only for x86:
./arch/x86/include/asm/xen/hypercall.h:HYPERVISOR_dom0_op(struct xen_platform_op *platform_op)

cc1: some warnings being treated as errors
make[2]: *** [drivers/xen/acpi.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [drivers/xen] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [drivers] Error 2

Am I missing some other patches?

No, you miss nothing. Parth Dixit is still working on XEN ACPI for
ARM64, before it's in full function, how about introduce a Kconfig
CONFIG_XEN_ACPI and let it depends on x86? when XEN ACPI for ARM64
comes, we can enable ARM64 for CONFIG_XEN_ACPI and fix the problems

Stefano, Parth, what do you think?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at