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Date: Fri, 22 Aug 2014 15:59:12 +0200 From: harald@...hat.com To: linux-kernel@...r.kernel.org Cc: Harald Hoyer <harald@...hat.com> Subject: [PATCH] early microcode: extend the ramdisk address to 64bit From: Harald Hoyer <harald@...hat.com> commit 4bf7111f50167133a71c23530ca852a41355e739 enabled loading of the initramfs above 4G addresses. So I was wondering, if the early microcode code might want to honor the upper 32bit of the 64bit address. Signed-off-by: Harald Hoyer <harald@...hat.com> --- arch/x86/kernel/cpu/microcode/amd_early.c | 1 + arch/x86/kernel/cpu/microcode/intel_early.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/x86/kernel/cpu/microcode/amd_early.c b/arch/x86/kernel/cpu/microcode/amd_early.c index 617a9e2..5b71346 100644 --- a/arch/x86/kernel/cpu/microcode/amd_early.c +++ b/arch/x86/kernel/cpu/microcode/amd_early.c @@ -56,6 +56,7 @@ static struct cpio_data __init find_ucode_in_initrd(void) #else path = ucode_path; start = (void *)(boot_params.hdr.ramdisk_image + PAGE_OFFSET); + start |= (void *)boot_params.ext_ramdisk_image << 32; size = boot_params.hdr.ramdisk_size; #endif diff --git a/arch/x86/kernel/cpu/microcode/intel_early.c b/arch/x86/kernel/cpu/microcode/intel_early.c index 18f7391..d2a9e1e 100644 --- a/arch/x86/kernel/cpu/microcode/intel_early.c +++ b/arch/x86/kernel/cpu/microcode/intel_early.c @@ -744,6 +744,7 @@ load_ucode_intel_bsp(void) initrd_start_early, initrd_end_early, &uci); #else ramdisk_image = boot_params.hdr.ramdisk_image; + ramdisk_image |= (u64)boot_params.ext_ramdisk_image << 32; ramdisk_size = boot_params.hdr.ramdisk_size; initrd_start_early = ramdisk_image + PAGE_OFFSET; initrd_end_early = initrd_start_early + ramdisk_size; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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