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From: Toshi Kani <toshi.kani@hp.com>
To: dyoung@redhat.com
Cc: mjg59@srcf.ucam.org, linux-efi@vger.kernel.org, x86@kernel.org,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
	James.Bottomley@HansenPartnership.com, horms@verge.net.au,
	bp@alien8.de, ebiederm@xmission.com, hpa@zytor.com,
	vgoyal@redhat.com
Subject: Re: [patch 1/7 v2] Add function efi_remap_region for remapping to saved virt address
Date: Fri, 15 Nov 2013 16:02:05 -0700	[thread overview]
Message-ID: <1384556525.1791.4.camel@misato.fc.hp.com> (raw)
In-Reply-To: <20131105082715.502723229@dhcp-16-126.nay.redhat.com>

On Tue, 2013-11-05 at 16:20 +0800, dyoung@redhat.com wrote:
> Kexec kernel will use saved runtime virtual mapping, so add a
> new function efi_remap_region to remapping it directly without
> calculate the virt addr from efi_va.
> 
> The md is passed in from 1st kernel, the virtual addr is
> saved in md->virt_addr.

 :

> +/*
> + * kexec kernel will use efi_map_region_fixed to map efi
> + * runtime memory ranges. md->virt_addr is the original virtual
> + * address which had been mapped in kexec 1st kernel.
> + */
> +void __init efi_map_region_fixed(efi_memory_desc_t *md)

Can you simply use __map_region() instead of creating this function?
Both functions seem to do the same thing.  (In __map_region(), size and
end are not used.)

Thanks,
-Toshi


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  parent reply	other threads:[~2013-11-15 23:07 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-05  8:20 [patch 0/7 v2] kexec kernel efi runtime support dyoung
2013-11-05  8:20 ` [patch 1/7 v2] Add function efi_remap_region for remapping to saved virt address dyoung
2013-11-13 15:50   ` Matt Fleming
2013-11-14  1:38     ` Dave Young
2013-11-15 23:02   ` Toshi Kani [this message]
2013-11-18  2:09     ` Dave Young
2013-11-18  9:37       ` Dave Young
2013-11-05  8:20 ` [patch 2/7 v2] x86 efi: reserve boot service fix dyoung
2013-11-15 23:10   ` Toshi Kani
2013-11-05  8:20 ` [patch 3/7 v2] Cleanup efi_enter_virtual_mode function dyoung
2013-11-13 15:50   ` Matt Fleming
2013-11-14  1:39     ` Dave Young
2013-11-15 23:21   ` Toshi Kani
2013-11-18  2:08     ` Dave Young
2013-11-05  8:20 ` [patch 4/7 v2] export more efi table variable to sysfs dyoung
2013-11-12  0:40   ` Greg KH
2013-11-12  8:19     ` Dave Young
2013-11-12  8:24       ` Dave Young
2013-11-12  8:31         ` Greg KH
2013-11-05  8:20 ` [patch 5/7 v2] export efi runtime memory mapping " dyoung
2013-11-13 15:50   ` Matt Fleming
2013-11-14  1:50     ` Dave Young
2013-11-18  2:16       ` Dave Young
2013-11-19 12:18         ` Matt Fleming
2013-11-05  8:20 ` [patch 6/7 v2] passing kexec necessary efi data via setup_data dyoung
2013-11-13 15:50   ` Matt Fleming
2013-11-14  1:52     ` Dave Young
2013-11-05  8:20 ` [patch 7/7 v2] x86: add xloadflags bit for efi runtime support on kexec dyoung
2013-11-13 15:50   ` Matt Fleming
2013-11-14  1:53     ` Dave Young
2013-11-13 16:20   ` H. Peter Anvin
2013-11-14  1:36     ` Dave Young
2013-11-05 14:40 ` [patch 0/7 v2] kexec kernel efi runtime support Borislav Petkov
2013-11-08 14:31 ` Matt Fleming
2013-11-09  3:57   ` Dave Young
2013-11-09  5:01     ` H. Peter Anvin
2013-11-11  2:13       ` Dave Young
2013-11-11  2:21         ` H. Peter Anvin
2013-11-11  2:47           ` Dave Young

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