linux-kernel - Re: [PATCH v4 00/12] kexec kernel efi runtime support

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Message-ID: <20131127125003.GG18170@console-pimps.org>
Date:	Wed, 27 Nov 2013 12:50:03 +0000
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Dave Young <dyoung@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
	x86@...nel.org, mjg59@...f.ucam.org, hpa@...or.com,
	James.Bottomley@...senPartnership.com, vgoyal@...hat.com,
	ebiederm@...ssion.com, horms@...ge.net.au,
	kexec@...ts.infradead.org, bp@...en8.de, greg@...ah.com,
	toshi.kani@...com
Subject: Re: [PATCH v4 00/12] kexec kernel efi runtime support

On Tue, 26 Nov, at 01:57:45PM, Dave Young wrote:
> Hi,
> 
> Here is the V4 resend for supporting kexec kernel efi runtime.
> Per pervious discussion I pass the 1st kernel efi runtime mapping
> via setup_data to 2nd kernel. Besides of the runtime mapping
> info I also pass the fw_vendor, runtime, config table, smbios
> physical address in setup_data. EFI spec mentioned fw_vendor,
> runtime, config table addresses will be converted to virt address
> after entering virtual mode, but we will use it as physical address
> in efi_init. For smbios EFI spec did not mention about the address
> updating, but during my test on a HP workstation, the bios will
> convert it to Virt addr, thus pass it in setup_data as well.
 
Dave, your commits introduce a bunch of new sparse warnings,

/home/build/git/efi/arch/x86/platform/efi/efi.c:130:15: warning: incorrect type in assignment (different address spaces)
/home/build/git/efi/arch/x86/platform/efi/efi.c:130:15:    expected struct setup_data *sdata
/home/build/git/efi/arch/x86/platform/efi/efi.c:130:15:    got void [noderef] <asn:2>*
/home/build/git/efi/arch/x86/platform/efi/efi.c:140:23: warning: incorrect type in argument 1 (different address spaces)
/home/build/git/efi/arch/x86/platform/efi/efi.c:140:23:    expected void [noderef] <asn:2>*addr
/home/build/git/efi/arch/x86/platform/efi/efi.c:140:23:    got struct setup_data *sdata
/home/build/git/efi/arch/x86/platform/efi/efi.c:143:16: warning: incorrect type in assignment (different address spaces)
/home/build/git/efi/arch/x86/platform/efi/efi.c:143:16:    expected struct efi_setup_data *[addressable] [toplevel] esdata
/home/build/git/efi/arch/x86/platform/efi/efi.c:143:16:    got void [noderef] <asn:2>*

/home/build/git/efi/arch/x86/platform/efi/efi.c:701:20: warning: incorrect type in assignment (different address spaces)
/home/build/git/efi/arch/x86/platform/efi/efi.c:701:20:    expected void *tablep
/home/build/git/efi/arch/x86/platform/efi/efi.c:701:20:    got void [noderef] <asn:2>*
/home/build/git/efi/arch/x86/platform/efi/efi.c:722:23: warning: incorrect type in argument 1 (different address spaces)
/home/build/git/efi/arch/x86/platform/efi/efi.c:722:23:    expected void [noderef] <asn:2>*addr
/home/build/git/efi/arch/x86/platform/efi/efi.c:722:23:    got void *tablep

/home/build/git/efi/arch/x86/platform/efi/efi.c:1079:31: warning: incorrect type in argument 1 (different address spaces)
/home/build/git/efi/arch/x86/platform/efi/efi.c:1079:31:    expected void [noderef] <asn:2>*addr
/home/build/git/efi/arch/x86/platform/efi/efi.c:1079:31:    got struct efi_setup_data *[addressable] [toplevel] esdata

-- 
Matt Fleming, Intel Open Source Technology Center
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