From: Toshi Kani <toshi.kani@hp.com>
To: Dave Young <dyoung@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
x86@kernel.org, mjg59@srcf.ucam.org, hpa@zytor.com,
James.Bottomley@HansenPartnership.com, vgoyal@redhat.com,
ebiederm@xmission.com, horms@verge.net.au,
kexec@lists.infradead.org, bp@alien8.de, greg@kroah.com,
matt@console-pimps.org, akpm@linux-foundation.org,
mingo@kernel.org, msalter@redhat.com, leif.lindholm@linaro.org
Subject: Re: [PATCH v7 00/12] kexec kernel efi runtime support
Date: Fri, 20 Dec 2013 11:01:10 -0700 [thread overview]
Message-ID: <1387562470.21140.57.camel@misato.fc.hp.com> (raw)
In-Reply-To: <1387533742-18018-1-git-send-email-dyoung@redhat.com>
On Fri, 2013-12-20 at 18:02 +0800, Dave Young wrote:
> Here is the V7 patchset 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.
>
> For fw_vendor, runtime, config table, I export them in /sys/firmware/
> efi/, smbios is already in /sys/firmware/efi/systab.
>
> For efi runtime mapping I add a new directory /sys/firmware/efi/
> runtime-map/ like below
> [dave@darkstar ~]$ tree /sys/firmware/efi/runtime-map/
> /sys/firmware/efi/runtime-map/
> |__ 0
> | |__ attribute
> | |__ num_pages
> | |__ phys_addr
> | |__ type
> | |__ virt_addr
> |__ 1
> [snip]
>
> kexec-tools will assemble them as setup_data and pass to 2nd kernel.
> I will send userspace patches as well.
>
> Limitation is I only write support for x86_64, test on below machines:
> Lenovo thinkpad t420
> Dell inspiron 14 - 3421
> HP Z420 workstation
> Qemu + OVMF
Tested on an HP 60-way UEFI platform (proto). For the series:
Tested-by: Toshi Kani <toshi.kani@hp.com>
Thanks,
-Toshi
next prev parent reply other threads:[~2013-12-20 18:06 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-20 10:02 [PATCH v7 00/12] kexec kernel efi runtime support Dave Young
2013-12-20 10:02 ` [PATCH v7 01/12] x86/mm: sparse warning fix for early_memremap Dave Young
2013-12-20 10:02 ` [PATCH v7 02/12] efi: Use early_memremap and early_memunmap to fix sparse warnings Dave Young
2013-12-20 10:02 ` [PATCH v7 03/12] efi: remove unused variables in __map_region Dave Young
2013-12-20 10:02 ` [PATCH v7 04/12] efi: add a wrapper function efi_map_region_fixed Dave Young
2013-12-20 10:02 ` [PATCH v7 05/12] efi: reserve boot service fix Dave Young
2013-12-20 10:02 ` [PATCH v7 06/12] efi: cleanup efi_enter_virtual_mode function Dave Young
2013-12-20 10:02 ` [PATCH v7 07/12] efi: export more efi table variable to sysfs Dave Young
2013-12-20 10:02 ` [PATCH v7 08/12] efi: export efi runtime memory mapping " Dave Young
2013-12-20 10:02 ` [PATCH v7 09/12] efi: passing kexec necessary efi data via setup_data Dave Young
2013-12-21 14:53 ` Matt Fleming
2013-12-23 2:06 ` Dave Young
2013-12-21 16:06 ` Matt Fleming
2013-12-23 2:09 ` Dave Young
2013-12-23 6:09 ` Dave Young
2013-12-23 8:07 ` Matt Fleming
2013-12-25 3:12 ` Dave Young
2013-12-25 3:32 ` Dave Young
2013-12-29 13:05 ` Matt Fleming
2013-12-30 1:38 ` Dave Young
2013-12-20 10:02 ` [PATCH v7 10/12] x86: add xloadflags bit for efi runtime support on kexec Dave Young
2013-12-20 10:02 ` [PATCH v7 11/12] x86: export x86 boot_params to sysfs Dave Young
2013-12-20 10:02 ` [PATCH v7 12/12] x86: reserve setup_data ranges late after parsing memmap cmdline Dave Young
2013-12-20 18:01 ` Toshi Kani [this message]
2013-12-21 17:35 ` [PATCH v7 00/12] kexec kernel efi runtime support Matt Fleming
2013-12-22 21:27 ` Toshi Kani
2013-12-23 7:36 ` Matt Fleming
2013-12-24 20:31 ` Toshi Kani
2013-12-25 3:09 ` Dave Young
2013-12-23 2:32 ` Dave Young
2014-01-02 2:42 ` Dave Young
2014-01-02 10:35 ` Matt Fleming
2014-01-03 4:12 ` Dave Young
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