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From: Ingo Molnar <mingo@kernel.org>
To: Juergen Gross <jgross@suse.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
	xen-devel@lists.xensource.com, konrad.wilk@oracle.com,
	david.vrabel@citrix.com, boris.ostrovsky@oracle.com,
	tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
	mmarek@suse.cz, linux-kbuild@vger.kernel.org
Subject: Re: [RESEND Patch V2 1/4] xen: build infrastructure for generating hypercall depending symbols
Date: Thu, 19 Feb 2015 00:59:13 +0100	[thread overview]
Message-ID: <20150218235913.GA9843@gmail.com> (raw)
In-Reply-To: <1421826565-10826-2-git-send-email-jgross@suse.com>


* Juergen Gross <jgross@suse.com> wrote:

> Today there are several places in the kernel which build tables
> containing one entry for each possible Xen hypercall. Create an
> infrastructure to be able to generate these tables at build time.
> 
> Based-on-patch-by: Jan Beulich <jbeulich@suse.com>
> Signed-off-by: Juergen Gross <jgross@suse.com>
> Reviewed-by: David Vrabel <david.vrabel@citrix.com>
> ---
>  arch/x86/syscalls/Makefile |  9 +++++++++
>  scripts/xen-hypercalls.sh  | 12 ++++++++++++
>  2 files changed, 21 insertions(+)
>  create mode 100644 scripts/xen-hypercalls.sh
> 
> diff --git a/arch/x86/syscalls/Makefile b/arch/x86/syscalls/Makefile
> index 3323c27..a55abb9 100644
> --- a/arch/x86/syscalls/Makefile
> +++ b/arch/x86/syscalls/Makefile
> @@ -19,6 +19,9 @@ quiet_cmd_syshdr = SYSHDR  $@
>  quiet_cmd_systbl = SYSTBL  $@
>        cmd_systbl = $(CONFIG_SHELL) '$(systbl)' $< $@
>  
> +quiet_cmd_hypercalls = HYPERCALLS $@
> +      cmd_hypercalls = $(CONFIG_SHELL) '$<' $@ $(filter-out $<,$^)
> +
>  syshdr_abi_unistd_32 := i386
>  $(uapi)/unistd_32.h: $(syscall32) $(syshdr)
>  	$(call if_changed,syshdr)
> @@ -47,10 +50,16 @@ $(out)/syscalls_32.h: $(syscall32) $(systbl)
>  $(out)/syscalls_64.h: $(syscall64) $(systbl)
>  	$(call if_changed,systbl)
>  
> +$(out)/xen-hypercalls.h: $(srctree)/scripts/xen-hypercalls.sh
> +	$(call if_changed,hypercalls)
> +
> +$(out)/xen-hypercalls.h: $(srctree)/include/xen/interface/xen*.h
> +
>  uapisyshdr-y			+= unistd_32.h unistd_64.h unistd_x32.h
>  syshdr-y			+= syscalls_32.h
>  syshdr-$(CONFIG_X86_64)		+= unistd_32_ia32.h unistd_64_x32.h
>  syshdr-$(CONFIG_X86_64)		+= syscalls_64.h
> +syshdr-$(CONFIG_XEN)		+= xen-hypercalls.h
>  
>  targets	+= $(uapisyshdr-y) $(syshdr-y)

>From a core x86 perspective:

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo

  parent reply	other threads:[~2015-02-18 23:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-21  7:49 [RESEND Patch V2 0/4] xen: auto-generate symbols for xen hypercalls Juergen Gross
2015-01-21  7:49 ` [RESEND Patch V2 1/4] xen: build infrastructure for generating hypercall depending symbols Juergen Gross
2015-01-28  5:11   ` Juergen Gross
2015-02-06 15:00     ` Juergen Gross
2015-02-19  0:00     ` Ingo Molnar
2015-02-13  5:33   ` Juergen Gross
2015-02-18 23:59   ` Ingo Molnar [this message]
2015-01-21  7:49 ` [RESEND Patch V2 2/4] xen: synchronize include/xen/interface/xen.h with xen Juergen Gross
2015-01-21  7:49 ` [RESEND Patch V2 3/4] xen: use generated hypervisor symbols in arch/x86/xen/trace.c Juergen Gross
2015-01-21  7:49 ` [RESEND Patch V2 4/4] xen: use generated hypercall symbols in arch/x86/xen/xen-head.S Juergen Gross
2015-03-02 11:00 ` [Xen-devel] [RESEND Patch V2 0/4] xen: auto-generate symbols for xen hypercalls David Vrabel

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