From 7a187a89fd96e8f2344b47b7fd4d3a686da66f55 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 4 May 2023 16:54:55 -0600 Subject: x86: Adjust search range for sysinfo table Avoid searching starting at 0 since this memory may not be available, e.g. if protection against NULL-pointer access is enabled. The table cannot be there anyway, since the first 1KB of memory was originally used for the interrupt table and coreboot avoids it. Start at 0x400 instead. Signed-off-by: Simon Glass Reviewed-by: Bin Meng --- arch/x86/cpu/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index 6fe6eaf6c8..dddd281e96 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -351,8 +351,8 @@ long locate_coreboot_table(void) { long addr; - /* We look for LBIO in the first 4K of RAM and again at 960KB */ - addr = detect_coreboot_table_at(0x0, 0x1000); + /* We look for LBIO from addresses 1K-4K and again at 960KB */ + addr = detect_coreboot_table_at(0x400, 0xc00); if (addr < 0) addr = detect_coreboot_table_at(0xf0000, 0x1000); -- cgit v1.2.3