From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Young Subject: [PATCH v5 10/14] efi: only print saved efi runtime maps instead of all memmap ranges for kexec Date: Mon, 9 Dec 2013 17:42:23 +0800 Message-ID: <1386582147-9802-11-git-send-email-dyoung@redhat.com> References: <1386582147-9802-1-git-send-email-dyoung@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1386582147-9802-1-git-send-email-dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" Errors-To: kexec-bounces+glkk-kexec=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, toshi.kani-VXdhtT5mjnY@public.gmane.org, matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org, greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org, horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org, bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org, ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: linux-efi@vger.kernel.org For kexec/kdump kernel efi runtime mappings are saved, printing original whole memmap ranges does not make sense anymore. So introduce a new function to only print runtime maps in case kexec/kdump kernel is used. changelog: Matt: use efi_setup instead of esdata share function print_efi_memmap for both normal and kexec boot. Signed-off-by: Dave Young --- arch/x86/platform/efi/efi.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 69a6ec2..94a1cbc 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -423,19 +423,16 @@ int __init efi_memblock_x86_reserve_range(void) return 0; } -static void __init print_efi_memmap(void) +static void __init print_efi_memmap(void *map, int nr_map, int md_size) { #ifdef EFI_DEBUG efi_memory_desc_t *md; void *p; int i; - for (p = memmap.map, i = 0; - p < memmap.map_end; - p += memmap.desc_size, i++) { + for (p = map, i = 0; i < nr_map; p += md_size, i++) { md = p; - pr_info("mem%02u: type=%u, attr=0x%llx, " - "range=[0x%016llx-0x%016llx) (%lluMB)\n", + pr_info("mem%02u: type=%u, attr=0x%llx, range=[0x%016llx-0x%016llx) (%lluMB)\n", i, md->type, md->attribute, md->phys_addr, md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT), (md->num_pages >> (20 - EFI_PAGE_SHIFT))); @@ -797,7 +794,20 @@ void __init efi_init(void) x86_platform.set_wallclock = efi_set_rtc_mmss; } #endif - print_efi_memmap(); + if (efi_setup) { + int s; + struct efi_setup_data *data; + + s = sizeof(*data) + nr_efi_runtime_map * sizeof(data->map[0]); + data = early_memremap(efi_setup, s); + if (!data) + return; + print_efi_memmap(data->map, nr_efi_runtime_map, + sizeof(data->map[0])); + early_memunmap(data, s); + } else { + print_efi_memmap(memmap.map, memmap.nr_map, memmap.desc_size); + } } void __init efi_late_init(void) -- 1.8.3.1