SeaBIOS February 2021

seabios@seabios.org

7 participants
13 discussions

[PATCH v3 0/4] nvme: Add PRP List support
by Alexander Graf 18 Jan '22

18 Jan '22

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

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[PATCH 00/19] Support SMBIOS 3.0 entry points
by Eduardo Habkost 18 Dec '21

18 Dec '21

This series implements support for SMBIOS 3.0 entry points in SeaBIOS. The main advantage of SMBIOS 3.0 entry points is the higher limit for total table size. The SMBIOS 2.1 64435 bytes limit can be easily hit in QEMU if creating virtual machines with more than 720 VCPUs. Eduardo Habkost (19): biostables: copy_fseg_table() function util.h: Delete unused get_smbios_entry_point() prototype smbios: Rename code specific for SMBIOS 2.1 entry points smbios: Generic smbios_next() function smbios: smbios_get_tables() function smbios: Use smbios_get_tables()/smbios_next() at display_uuid() smbios: smbios_major_version()/smbios_minor_version() helpers tpm: Use smbios_get_tables() csm: Don't check SMBios21Addr before calling copy_smbios_21() smbios: Make SMBios21Addr variable static smbios: Use smbios_next() at smbios_romfile_setup() smbios: Extract SMBIOS table building code to separate function smbios: Make smbios_build_tables() more generic smbios: smbios_21_setup_entry_point() function smbios: Make some smbios_build_tables() arguments optional smbios: Make smbios_build_tables() ready for 64-bit tables smbios: copy_smbios_30() function smbios: Support SMBIOS 3.0 entry point at copy_table() smbios: Support SMBIOS 3.0 entry point at smbios_romfile_setup() src/std/smbios.h | 17 ++- src/util.h | 5 +- src/fw/biostables.c | 259 +++++++++++++++++++++++++++++++++----------- src/fw/csm.c | 6 +- src/fw/smbios.c | 12 +- src/tcgbios.c | 12 +- 6 files changed, 227 insertions(+), 84 deletions(-) -- 2.28.0

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[PATCH v3 0/5] Make seabios linkable with lld
by Fangrui Song 11 Aug '21

11 Aug '21

This patch series make seabios linkable with lld. This is beneficial for FreeBSD ports as well https://svnweb.freebsd.org/ports/head/misc/seabios/Makefile as they can drop an LLD_UNSAFE As a maintainer of lld ELF, I have triaged numerous pieces of software. seabios is the only one making use of This drops the only instance https://sourceware.org/bugzilla/show_bug.cgi?id=12726 1, 2, 3 and 4 are really independent and can be applied in arbitrary order. 5 depends on 4. I originally combined 4 and 5 and that was why I don't think a patch series made sense. Fangrui Song (5): romlayout.S: Add missing SHF_ALLOC flag to .fixedaddr.\addr Make rom16.o linkable with lld Makefile: Change ET_EXEC to ET_REL so that lld can link bios.bin.elf romlayout32flag.lds: Use `. +=` instead of `. =` test-build.sh: Delete unneeded LD capability test Makefile | 4 ++++ scripts/layoutrom.py | 13 ++++++++++--- scripts/test-build.sh | 42 +----------------------------------------- src/romlayout.S | 2 +- 4 files changed, 16 insertions(+), 45 deletions(-) -- 2.26.0.292.g33ef6b2f38-goog

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[PATCH] AHCI: The attached ATA device cannot be detected when binding AHCI controller to Virtual Machine
by RunaGuo-oc＠zhaoxin.com 29 Mar '21

29 Mar '21

When binding AHCI controller to virtual machine, the attached ATA device cannot be recognized for the following reason: The first Identify PACKET CMD will be failed without dobut which will lead PORT_IRQ_TF_ERR be set in PxIS due to ERR bit set to 1 in D2H Register FIS(PxTFD.STS.ERR=1). In this case, the first CMD will be timeout for seabios only polling PORT_IRQ_D2H_REG_FIS & PORT_IRQ_PIOS_FIS before triggering error handling which leads AHCI controller is an error state, then the second IDENTIFY CMD cannot be issued by AHCI controller, no ATA device will be detected. In AHCI spec HBA Port State Machine section(5.3.8.1 and 5.3.16.5), we can see this sequence: RegFIS:Entry --> ERR:FatalTaskfile (PxTFD.STS.ERR=1) --> ERR:WaitForClear, no entry for PORT_IRQ_D2H_REG_FIS/PORT_IRQ_PIOS_FIS to be set at this time. May be we can also add PORT_IRQ_TF_ERR bit check when polling command completion status? fail log: 02.386: |bffa6000| AHCI/1: link up 02.387: |bffa6000| AHCI/1: send cmd ... 02.387: |bffa7000| phys_free bffa9c00 (detail=0xbffaa320) 02.396: |bffa7000| phys_free bffaa200 (detail=0xbffaa1d0) 02.396: |bffa7000| phys_free bffaa000 (detail=0xbffaa1a0) 02.396: |bffa7000| phys_free bffaa380 (detail=0xbffaa350) 02.400: \bffa7000/ End thread 02.401: phys_free bffa7000 (detail=0xbffaa170) 34.391: |bffa6000| WARNING - Timeout at ahci_command:153! 34.392: |bffa6000| AHCI/1: send cmd ... 66.397: |bffa6000| WARNING - Timeout at ahci_command:153! Signed-off-by: zhaoxin\runaguooc <RunaGuo-oc(a)zhaoxin.com> --- src/hw/ahci.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/hw/ahci.c b/src/hw/ahci.c index d45b430..bab5c35 100644 --- a/src/hw/ahci.c +++ b/src/hw/ahci.c @@ -104,7 +104,7 @@ static void ahci_port_writel(struct ahci_ctrl_s *ctrl, u32 pnr, u32 reg, u32 val static int ahci_command(struct ahci_port_s *port_gf, int iswrite, int isatapi, void *buffer, u32 bsize) { - u32 val, status, success, flags, intbits, error; + u32 val, status, success, flags, intbits, error, tf; struct ahci_ctrl_s *ctrl = port_gf->ctrl; struct ahci_cmd_s *cmd = port_gf->cmd; struct ahci_fis_s *fis = port_gf->fis; @@ -148,6 +148,14 @@ static int ahci_command(struct ahci_port_s *port_gf, int iswrite, int isatapi, error = GET_LOWFLAT(fis->rfis[3]); break; } + + if(intbits & PORT_IRQ_TF_ERR){ + tf = ahci_port_readl(ctrl,pnr,PORT_TFDATA); + status = tf & 0xff; + error = tf & 0xff00; + break; + } + } if (timer_check(end)) { warn_timeout(); -- 2.17.1

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[PATCH 00/31] Add support for PA-RISC CPU target
by Helge Deller 08 Mar '21

08 Mar '21

This patchset modifies SeaBIOS source code to be able to build a firmware for the PA-RISC CPU architecture. This firmware can then be used to boot a virtual PA-RISC machine with PA-Linux and HP/UX on QEMU. Where possible existing SeaBIOS drivers and infrastructure is reused. Since PA-RISC is native 32/64-Bit, the various segment accessors are not needed and replaced by simple variable accesses. Helge Deller (31): Add config option for PA-RISC arch biosvar.h: Add accessors for various BIOS data areas Drivers: Use get_bda_ptr() BDA accessor byteorder.h: Add endianess conversion functions farptr.h: Add FLATPTR* accessor functions for parisc font.c: Disable built-in x86 font on parisc paravirt.h: Add PORT_QEMU_CFG_CTL for parisc pciinit.c: Initialize PA-RISC Dino PCI chip shadow.c: Compile int3 inline assembly on x86 only Add portaddr_t typedef to specify I/O port addresses ata.c: Allow to boot on PA-RISC ata.h: Add ATA IDE port addresses for PA-RISC blockcmd.c: Prevent unaligned access crash on PA-RISC scsi: Add fields for specifying target and lun of SCSI devices lsi-scsi.c: Convert SCSI script to little endian pci.c: Add PCI ports for PA-RISC and access PCI bus in little-endian rtc.h: Add CMOS/RTC addresses for PA-RISC serialio.h: Add serial port adresses for PA-RISC malloc.c: Implement a PA-RISC specific malloc() output.c: Add PA-RISC specific output behaviour output.c: Make printf() capable to print 64bit int values romfile.c: return values are returned as little-endian sercon.c: Use SEROFF_IIR constant stacks.h: Provide replacement for thread functions when !CONFIG_THREADS version.c: Mark version strings const x86.h: Provide replacement functions for PA-RISC parisc: Add PA-RISC related code string.c: reimplement mem*_far() functions for PA-RISC boot.c: Add boot disc chooser for PA-RISC block.c: Allow PA-RISC to boot from ATA drives ata.c: Add missing endianess conversion functions Makefile | 9 +- Makefile.parisc | 192 ++++ src/Kconfig | 54 +- src/biosvar.h | 31 + src/block.c | 10 +- src/block.h | 2 + src/boot.c | 48 + src/byteorder.h | 74 ++ src/farptr.h | 14 +- src/font.c | 2 + src/fw/csm.c | 2 +- src/fw/paravirt.h | 7 + src/fw/pciinit.c | 53 +- src/fw/shadow.c | 2 + src/hw/ata.c | 70 +- src/hw/ata.h | 14 +- src/hw/blockcmd.c | 17 +- src/hw/blockcmd.h | 2 +- src/hw/esp-scsi.c | 2 +- src/hw/lsi-scsi.c | 6 +- src/hw/megasas.c | 2 +- src/hw/mpt-scsi.c | 2 +- src/hw/pci.c | 13 +- src/hw/pvscsi.c | 2 +- src/hw/rtc.h | 7 + src/hw/serialio.c | 2 +- src/hw/serialio.h | 10 +- src/hw/usb-msc.c | 2 +- src/hw/usb-uas.c | 2 +- src/hw/virtio-scsi.c | 2 +- src/malloc.c | 4 +- src/malloc.h | 8 +- src/output.c | 56 +- src/parisc/b160l.h | 630 +++++++++++ src/parisc/head.S | 319 ++++++ src/parisc/hppa.h | 370 +++++++ src/parisc/hppa_hardware.h | 49 + src/parisc/lasips2.c | 66 ++ src/parisc/lasips2.h | 17 + src/parisc/malloc.c | 91 ++ src/parisc/pafirmware.lds.S | 69 ++ src/parisc/parisc.c | 1997 +++++++++++++++++++++++++++++++++++ src/parisc/pdc.h | 694 ++++++++++++ src/parisc/sti.c | 179 ++++ src/parisc/sticore.h | 326 ++++++ src/parisc/stirom.c | 652 ++++++++++++ src/parisc/timer.c | 103 ++ src/post.c | 2 +- src/romfile.c | 4 +- src/sercon.c | 2 +- src/serial.c | 4 +- src/stacks.h | 17 +- src/string.c | 27 +- src/types.h | 8 +- src/version.c | 4 +- src/x86.h | 6 + 56 files changed, 6236 insertions(+), 123 deletions(-) create mode 100644 Makefile.parisc create mode 100644 src/parisc/b160l.h create mode 100644 src/parisc/head.S create mode 100644 src/parisc/hppa.h create mode 100644 src/parisc/hppa_hardware.h create mode 100644 src/parisc/lasips2.c create mode 100644 src/parisc/lasips2.h create mode 100644 src/parisc/malloc.c create mode 100644 src/parisc/pafirmware.lds.S create mode 100644 src/parisc/parisc.c create mode 100644 src/parisc/pdc.h create mode 100644 src/parisc/sti.c create mode 100644 src/parisc/sticore.h create mode 100644 src/parisc/stirom.c create mode 100644 src/parisc/timer.c -- 2.29.2

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[PATCH 1/1] usb-hid: Increase MAX_KBD_EVENT
by seabios＠desire.ch 08 Mar '21

08 Mar '21

From: Stefan Ott <stefan(a)ott.net> Some USB keyboards use max packet sizes beyond the current maximum supported by SeaBIOS. This increases the available size to support these keyboards. Signed-off-by: Stefan Ott <stefan(a)ott.net> --- src/hw/usb-hid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/hw/usb-hid.c b/src/hw/usb-hid.c index a22765b..92c6b19 100644 --- a/src/hw/usb-hid.c +++ b/src/hw/usb-hid.c @@ -56,7 +56,7 @@ struct keyevent { u8 keys[6]; }; -#define MAX_KBD_EVENT 10 +#define MAX_KBD_EVENT 16 static int usb_kbd_setup(struct usbdevice_s *usbdev -- 2.30.1

4 3

How to boot from DVD/CD automatically, instead of pressing a key by hand?
by Yiguang Chen 01 Mar '21

01 Mar '21

Most time, When a vm with seabios start. The bios will display such info: ----- Seabios (version rel-1.13-0 ......) Machine UUID ... IPXE .. IPXE.. Booting from DVD/CD... Press any key to boot from CD or DVD. --- It means that have a bootable cdrom to boot. But If we want to boot from cdrom, we must press any key as what the warning had said. If it is possible to boot from DVD/CD automatically, instead of pressing a key by hand? Looking forward to your feedback, YiguangChen

4 3

Re: [PATCH 28/31] string.c: reimplement mem*_far() functions for PA-RISC
by Valentine 16 Feb '21

16 Feb '21

Hello, Helge! I meant, to use: #ifdef CONFIG_PA_RISC // PA-RISC code #else // x86 code #endif Then if CONFIG_PA_RISC is not defined, the compilation will go as before without the need of toolchain modification. But, of course, you're right, the difference is not that big. Best regards, Valentine.

2 1

Re: [PATCH 28/31] string.c: reimplement mem*_far() functions for PA-RISC
by Valentine 13 Feb '21

13 Feb '21

> +#if CONFIG_X86 I understand that Helge adapted sources for PA-RISC, but will not it be more convenient to use#if CONFIG_PA_RISC So that by default SeaBIOS would compile as usual? Best regards,Valentine ---From: Helge DellerDate: 12.02.2021 1:08 (GMT+03:00)Subject: [SeaBIOS] [PATCH 28/31] string.c: reimplement mem*_far() functions for PA-RISC

2 1

[PATCH 20/31] output.c: Add PA-RISC specific output behaviour
by Helge Deller 11 Feb '21

11 Feb '21

On PA-RISC call an own screenc() implementation which doesn't use int10, prevent the Intel-specific \r newline when printing \n and don't output to serial debug port. Signed-off-by: Helge Deller <deller(a)gmx.de> --- src/output.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/src/output.c b/src/output.c index 0184444..6141fb6 100644 --- a/src/output.c +++ b/src/output.c @@ -18,6 +18,9 @@ #include "stacks.h" // call16_int #include "string.h" // memset #include "util.h" // ScreenAndDebug +#if CONFIG_PARISC +#include "parisc/sticore.h" +#endif struct putcinfo { void (*func)(struct putcinfo *info, char c); @@ -44,7 +47,8 @@ debug_putc(struct putcinfo *action, char c) qemu_debug_putc(c); if (!MODESEGMENT) coreboot_debug_putc(c); - serial_debug_putc(c); + if (!CONFIG_PARISC) + serial_debug_putc(c); } // Flush any pending output to debug port(s). @@ -74,6 +78,7 @@ static struct putcinfo debuginfo = { debug_putc }; static void screenc(char c) { +#if CONFIG_X86 if (!MODESEGMENT && GET_IVT(0x10).segoff == FUNC16(entry_10).segoff) // No need to thunk to 16bit mode if vgabios is not present return; @@ -84,6 +89,9 @@ screenc(char c) br.al = c; br.bl = 0x07; call16_int(0x10, &br); +#else + parisc_screenc(c); +#endif } // Handle a character from a printf request. @@ -92,7 +100,7 @@ screen_putc(struct putcinfo *action, char c) { if (ScreenAndDebug) debug_putc(&debuginfo, c); - if (c == '\n') + if (CONFIG_X86 && c == '\n') screenc('\r'); screenc(c); } -- 2.29.2

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SeaBIOS February 2021