From 4f51b0f7fe81677f3cd205cd2820aee6fb78f1bc Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Thu, 7 Jun 2018 06:47:48 +0300 Subject: arch/x86: Fix payload loading via bounce-buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix regression (supposedly) after commit: 23d62dd lib/bootmem: Add more bootmem tags Without RELOCATABLE_RAMSTAGE, payload is allowed to overwrite memory regions of the running ramstage. This case is handled gracefully via a bounce-buffer implementation in arch/x86/boot.c. Change-Id: I1c9bbdb963a7210d0817a7a990a70a1e4fc03624 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/26935 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin Reviewed-by: Julius Werner --- src/arch/x86/boot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/arch') diff --git a/src/arch/x86/boot.c b/src/arch/x86/boot.c index d157f96380..8a6592f189 100644 --- a/src/arch/x86/boot.c +++ b/src/arch/x86/boot.c @@ -203,7 +203,7 @@ static void jmp_payload(void *entry, unsigned long buffer, unsigned long size) int arch_supports_bounce_buffer(void) { - return 1; + return !IS_ENABLED(CONFIG_RELOCATABLE_RAMSTAGE); } int payload_arch_usable_ram_quirk(uint64_t start, uint64_t size) -- cgit v1.2.3