SeaBIOS October 2020

seabios@seabios.org

5 participants
5 discussions

[PATCH v3 0/4] nvme: Add PRP List support

by Alexander Graf

While looking at VM bootup times, we stumbled over the fact that the NVMe code only does I/O operations of up to 4kb at a given point in time. This is usually ok, but if you have an OS that loads a lot of data on boot in combination to network backed storage, it shows in bootup times. There is no need to restrict ourselves to 4kb though. The INT13 call we receive gives us much larger chunks which we can just map into a native bigger NVMe I/O call if the request buffer is page aligned. This patch implements all logic required to do the above and gives a substantial performance boost on boot. v1 -> v2: - fix dprintf - Fix bounds check on PRP list add logic - Reduce PRP list to 15 entries embedded in the ns struct. This reduces BIOS reserved memory footprint by 4kb. v2 -> v3: - new patch: nvme: Split requests by maximum allowed size - Adjust the maximum request size to sector units. The hardware field describes it in pages. Alexander Graf (4): nvme: Record maximum allowed request size nvme: Allow to set PRP2 nvme: Pass large I/O requests as PRP lists nvme: Split requests by maximum allowed size src/hw/nvme-int.h | 16 ++++++- src/hw/nvme.c | 122 +++++++++++++++++++++++++++++++++++++++++++++++------- 2 files changed, 121 insertions(+), 17 deletions(-) -- 2.16.4 Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879

4 months

Universal Payload Project

by Paul Menzel

Dear coreboot, GRUB, and SeaBIOS folks, In #coreboot(a)irc.freenode.net somebody mentioned the Universal Payload Project [1]. > The goal of this project is to define an interface between a first > stage platform initialization bootloader and a second stage payload. As there also is a specification [2], I just wanted to make you aware of it, in case you have comments. Please keep in mind, that I do not know more details, so please do not jump to conclusions. Kind regards, Paul [1]: https://github.com/universalpayload/Introduction [2]: https://universalpayload.github.io/documentation/spec/spec.html

4 months

[PATCH] usb boot: add xhci mmio example

by Gerd Hoffmann

Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- src/boot.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/boot.c b/src/boot.c index bd78fb907c5a..1effd802ce06 100644 --- a/src/boot.c +++ b/src/boot.c @@ -423,7 +423,9 @@ int bootprio_find_usb(struct usbdevice_s *usbdev, int lun) { if (!CONFIG_BOOTORDER) return -1; - // Find usb - for example: /pci@i0cf8/usb@1,2/storage@1/channel@0/disk@0,0 + // Find usb - examples: + // pci: /pci@i0cf8/usb@1,2/storage@1/channel@0/disk@0,0 + // mmio: /sysbus-xhci@00000000fe900000/storage@1/channel@0/disk@0,0 char desc[256], *p; if (usbdev->hub->cntl->pci) -- 2.27.0

4 months, 2 weeks

[PATCH 0/3] usb/xhci: add support for mmio host adapters (via acpi).

by Gerd Hoffmann

Gerd Hoffmann (3): usb: add boot prio support for mmio host adapters usb/xhci: split xhci setup into generic and pci parts usb/xhci: add support for mmio host adapters (via acpi). src/hw/usb.h | 1 + src/boot.c | 10 ++++++- src/hw/usb-xhci.c | 71 ++++++++++++++++++++++++++++++++++++++--------- 3 files changed, 68 insertions(+), 14 deletions(-) -- 2.27.0

4 months, 2 weeks

[PATCH 0/2] dsdt: add support for pnp ids as strings

by Gerd Hoffmann

Gerd Hoffmann (2): output: add support for uppercase hex numbers dsdt: add support for pnp ids as strings src/fw/dsdt_parser.c | 21 +++++++++++-------- src/output.c | 49 ++++++++++++++++++++++++-------------------- 2 files changed, 40 insertions(+), 30 deletions(-) -- 2.27.0

4 months, 2 weeks

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SeaBIOS October 2020