Hi All, Here is v5 of my patch to address the E820 reservations vs PCI host bridge windows issue which is causing touchpad and/or thunderbolt issues on many different laptop models. Changes in v5: - Drop mention of Windows behavior from the commit msg, replace with a reference to the specs - Improve documentation in Documentation/admin-guide/kernel-parameters.txt - Reword the big comment added, use "PCI host bridge window" in it and drop all references to Windows - Add a second patch moving the arch/x86/pci/acpi.c printk-s to pr_info/warn Changes in v4: - Rewrap the big comment block to fit in 80 columns I believe that this is ready for merging now. Bjorn, can you review/ack this please ? x86/tip folks it would be ideal if you can pick this up and send at least the first patch as a fix to Linus for 5.15. This fixes a bug which has been plaguing a lot of users (see all the bug links in the commit msg). Regards, Hans Hans de Goede (2): x86/PCI: Ignore E820 reservations for bridge windows on newer systems x86/PCI/ACPI: Replace printk calls with pr_info/pr_warn calls .../admin-guide/kernel-parameters.txt | 9 ++++ arch/x86/include/asm/pci_x86.h | 10 ++++ arch/x86/kernel/resource.c | 4 ++ arch/x86/pci/acpi.c | 49 +++++++++++++++---- arch/x86/pci/common.c | 6 +++ 5 files changed, 68 insertions(+), 10 deletions(-) -- 2.31.1
