On Tue, Nov 10, 2020 at 12:05 AM Simon Glass sjg@chromium.org wrote:
Hi Bin,
On Mon, 9 Nov 2020 at 01:05, Bin Meng bmeng.cn@gmail.com wrote:
Since commit 29d2d64ed55f ("x86: Add support for more than 8 MTRRs"), the maximum number of variable range MTRRs was increased from 8 to 10, which caused a #GP exception during VESA video driver probe.
On the BayTrail platform there are only 8 variable range MTRRs. In mtrr_commit() it still uses MTRR_MAX_COUNT which should have been updated to use dynamically probed number.
This fixes the boot failure seen on Intel Minnow Max board.
Fixes: 29d2d64ed55f ("x86: Add support for more than 8 MTRRs") Signed-off-by: Bin Meng bmeng.cn@gmail.com
arch/x86/cpu/mtrr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Simon Glass sjg@chromium.org
applied to u-boot-x86, thanks!