From: Chao Fan <fanc.fnst@cn.fujitsu.com> To: Junichi Nomura <j-nomura@ce.jp.nec.com> Cc: Borislav Petkov <bp@alien8.de>, "bhe@redhat.com" <bhe@redhat.com>, Dave Young <dyoung@redhat.com>, "kasong@redhat.com" <kasong@redhat.com>, "x86@kernel.org" <x86@kernel.org>, "kexec@lists.infradead.org" <kexec@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org> Subject: Re: [PATCH v2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Date: Tue, 2 Apr 2019 17:41:49 +0800 [thread overview] Message-ID: <20190402094149.GB1555@localhost.localdomain> (raw) In-Reply-To: <20190401000837.GA5170@jeru.linux.bs1.fc.nec.co.jp> Hi, I have test your PATCH in Qemu guest: ---------- Fedora 29 (Workstation Edition) Kernel 5.1.0-rc3+ on an x86_64 (ttyS0) localhost login: root Password: Last login: Tue Apr 2 05:30:33 on ttyS0 [root@localhost ~]# cd /boot [root@localhost boot]# ls config-4.18.16-300.fc29.x86_64 efi extlinux grub2 initramfs-0-rescue-858ff1f5d0cb453898ae6c7f77c68ba7.img initramfs-4.18.16-300.fc29.x86_64.img initramfs-4.18.16-300.fc29.x86_64kdump.img initramfs-5.1.0-rc3+.img initramfs-5.1.0-rc3+kdump.img loader lost+found System.map System.map-4.18.16-300.fc29.x86_64 System.map-5.1.0-rc3+ vmlinuz vmlinuz-0-rescue-858ff1f5d0cb453898ae6c7f77c68ba7 vmlinuz-4.18.16-300.fc29.x86_64 vmlinuz-5.1.0-rc3+ [root@localhost boot]# kexec -l vmlinuz-5.1.0-rc3+ --initrd=initramfs-5.1.0-rc3+.img --reuse-cmdline [root@localhost boot]# kexec -e [ 77.933760] Unregister pv shared memory for cpu 1 [ 77.933763] Unregister pv shared memory for cpu 2 [ 77.933766] Unregister pv shared memory for cpu 5 [ 77.933825] Unregister pv shared memory for cpu 7 [ 77.933882] Unregister pv shared memory for cpu 3 [ 77.933904] Unregister pv shared memory for cpu 8 [ 77.936147] Unregister pv shared memory for cpu 4 [ 77.936199] Unregister pv shared memory for cpu 9 [ 77.945822] Unregister pv shared memory for cpu 0 [ 77.946308] Unregister pv shared memory for cpu 6 [ 77.947420] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 77.989030] kexec_core: Starting new kernel early console in extract_kernel input_data: 0x000000017f6033b1 input_len: 0x00000000008412d4 output: 0x000000017e000000 output_len: 0x0000000001e15844 kernel_total_size: 0x0000000001e2c000 trampoline_32bit: 0x000000000009d000 booted via startup_64() Physical KASLR disabled: no suitable memory region! ------ I am not sure whether I have done the right test. This guest is booted from EFI. Here we can see the kexeced kernel has completed the compressed boot stage. So I think your PATCH works. Thanks, Chao Fan
next prev parent reply other threads:[~2019-04-02 8:42 UTC|newest] Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-03-22 11:03 [PATCH] x86/boot: Use EFI setup data if provided Junichi Nomura 2019-03-22 15:23 ` Borislav Petkov 2019-03-25 0:27 ` Junichi Nomura 2019-03-25 6:01 ` Dave Young 2019-03-25 6:19 ` Dave Young 2019-03-25 6:45 ` Kairui Song 2019-03-25 6:47 ` Junichi Nomura 2019-03-25 6:59 ` Dave Young 2019-03-25 8:27 ` [PATCH v2] " Junichi Nomura 2019-03-25 8:54 ` Boris Petkov 2019-03-25 9:25 ` [PATCH v2] x86/boot: Don't try to search RSDP from EFI when kexec-booted Junichi Nomura 2019-03-25 10:15 ` [PATCH v2] x86/boot: Use EFI setup data if provided Dave Young 2019-03-25 10:36 ` Junichi Nomura 2019-03-25 11:16 ` Dave Young 2019-03-25 12:01 ` Borislav Petkov 2019-03-25 12:23 ` Dave Young 2019-03-25 12:32 ` Borislav Petkov 2019-03-25 23:10 ` Junichi Nomura 2019-03-26 12:46 ` Dave Young 2019-03-26 13:57 ` Borislav Petkov 2019-03-27 1:48 ` bhe 2019-03-27 12:14 ` Borislav Petkov 2019-03-28 4:17 ` Junichi Nomura 2019-03-28 6:26 ` Chao Fan 2019-03-28 6:43 ` bhe 2019-03-28 7:43 ` Junichi Nomura 2019-03-28 15:52 ` Borislav Petkov 2019-03-29 3:05 ` Junichi Nomura 2019-03-29 8:39 ` Borislav Petkov 2019-03-29 9:05 ` Chao Fan 2019-03-29 9:16 ` Borislav Petkov 2019-03-29 9:37 ` Junichi Nomura 2019-03-29 9:44 ` Chao Fan 2019-03-29 9:56 ` Junichi Nomura 2019-03-29 7:20 ` [PATCH] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Junichi Nomura 2019-03-29 7:49 ` bhe 2019-03-29 8:29 ` Chao Fan 2019-03-29 8:39 ` Junichi Nomura 2019-03-29 9:18 ` Chao Fan 2019-03-29 9:16 ` bhe 2019-03-29 9:20 ` Chao Fan 2019-04-01 0:08 ` [PATCH v2] " Junichi Nomura 2019-04-02 9:41 ` Chao Fan [this message] 2019-04-02 9:53 ` Junichi Nomura 2019-04-02 11:06 ` Chao Fan 2019-04-02 10:22 ` Junichi Nomura 2019-04-02 12:03 ` Dave Young 2019-04-03 5:35 ` Chao Fan 2019-04-03 5:53 ` Dave Young 2019-04-03 6:39 ` Dave Young 2019-04-03 7:30 ` Chao Fan 2019-04-03 7:50 ` bhe 2019-04-03 8:23 ` Dave Young 2019-04-03 8:26 ` Dave Young 2019-04-03 16:14 ` Borislav Petkov 2019-04-04 1:02 ` Chao Fan 2019-04-03 9:28 ` Chao Fan 2019-04-03 7:21 ` Chao Fan 2019-04-03 8:09 ` Dave Young 2019-04-03 8:23 ` Chao Fan 2019-04-03 9:02 ` Chao Fan 2019-04-03 9:39 ` Chao Fan 2019-04-04 1:23 ` Junichi Nomura 2019-04-04 2:52 ` Dave Young 2019-04-04 3:00 ` bhe 2019-04-04 3:10 ` bhe 2019-04-04 3:22 ` Dave Young 2019-04-04 6:41 ` Dave Young 2019-04-04 7:20 ` Chao Fan 2019-04-04 7:41 ` Dave Young 2019-04-04 7:48 ` Chao Fan 2019-04-04 12:22 ` Borislav Petkov 2019-04-04 14:08 ` Dave Young 2019-04-03 8:18 ` Dave Young 2019-04-02 10:25 ` [PATCH v3] " Junichi Nomura 2019-04-04 7:32 ` Dave Young 2019-04-04 12:24 ` Borislav Petkov 2019-04-04 14:12 ` Dave Young 2019-04-04 14:41 ` Borislav Petkov 2019-04-05 1:36 ` Dave Young 2019-04-05 4:19 ` Junichi Nomura 2019-03-28 23:11 ` [PATCH v2] x86/boot: Use EFI setup data if provided bhe 2019-03-29 3:34 ` Junichi Nomura 2019-03-29 3:52 ` bhe 2019-03-29 5:16 ` Junichi Nomura 2019-03-25 7:27 ` [PATCH] " Baoquan He 2019-03-25 7:53 ` Borislav Petkov 2019-03-25 8:21 ` Baoquan He 2019-03-25 8:43 ` Thomas Gleixner 2019-03-25 9:03 ` Baoquan He
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