SeaBIOS June 2018

seabios@seabios.org

12 participants
22 discussions

Re: [SeaBIOS] [coreboot] Upgrade the 12 years old LZMA libraries - should we do it?

by Carl-Daniel Hailfinger

Hi Ivan, On 03.04.2018 20:03, Ivan Ivanov wrote: > I have noticed that both coreboot and seabios are using the very old > versions of LZMA SDK. True. I introduced the lzma code in coreboot (back when it was called LinuxBIOS) when we were working on OLPC XO-1 support. > If we will upgrade our LZMA libraries from the > outdated-by-12-years 4.42 to the current version 18.04 , speed and > compression ratio should improve and maybe a few bugs will be fixed. Do you have any numbers for this? An improved compression ratio and improved speed would be nice indeed, but how does the size of the decompression code change? If the decompression code grows more than the size reduction from better compression, it would be a net loss. A significantly reduced decompression speed would also be a problem. Decompression speed would have to be measured both for stream decompression (i.e. the decompressor gets the compressed data in single-byte or multibyte chunks) as well as full-size decompression (i.e. the decompressor can access all compressed data at once). We also have to make sure that stream decompression still works after the change. > Do you think it should be done, or you are OK with using such an > outdated version? A size benefit for the resulting image is a good reason to switch. Regards, Carl-Daniel

2 years, 9 months

seabios fails to build with current IASL

by Michael Tokarev

Here's the debian bugreport https://bugs.debian.org/901462 with the patch. Thanks! /mjt

3 years, 3 months

[PATCH 0/7] seabios: 1.11.2 update

by Gerd Hoffmann

Hi folks, So, here is the current state of the seabios update for the upcoming qemu 3.0 release. This time it is a bit more than just the usual "update submodule and binaries". seabios 1.11.2 is not released yet. The plan is to cherry-pick the changes needed to support the new qemu 3.0 display devices (bochs-display and ramfb) into the 1.11-stable branch for the 1.11.2 release. Current state is here: https://git.kraxel.org/cgit/seabios/log/?h=1.11-stable-testing Changes in this patch series: - seabios submodule update (to the testing branch). - new vgabios configs for bochs-display and ramfb. - update the bios config to enables ide dma (for qnx). - drop (old) vgabios submodule and build rules. - seabios binary update. - make bochs-display and ramfb load the new vgabios roms. Git branch for this series is here: https://git.kraxel.org/cgit/qemu/log/?h=seabios-1.11.2 cheers, Gerd Gerd Hoffmann (7): seabios: update submodule to 1.11.2-testing seabios: add vga configs for bochs-display and ramfb seabios: enable ide dma vgabios: remove submodule and build rules. seabios: update binaries bochs-display: enable vgabios ramfb: enable vgabios hw/display/bochs-display.c | 1 + hw/display/ramfb.c | 1 + .gitmodules | 3 --- pc-bios/bios-256k.bin | Bin 262144 -> 262144 bytes pc-bios/bios.bin | Bin 131072 -> 131072 bytes pc-bios/vgabios-cirrus.bin | Bin 38400 -> 38400 bytes pc-bios/vgabios-qxl.bin | Bin 38912 -> 38912 bytes pc-bios/vgabios-stdvga.bin | Bin 38912 -> 38912 bytes pc-bios/vgabios-virtio.bin | Bin 38912 -> 38912 bytes pc-bios/vgabios-vmware.bin | Bin 38912 -> 38912 bytes pc-bios/vgabios.bin | Bin 38400 -> 38400 bytes roms/Makefile | 20 +++----------------- roms/config.seabios-128k | 1 + roms/config.seabios-256k | 1 + roms/config.vga-bochs-display | 3 +++ roms/config.vga-ramfb | 3 +++ roms/seabios | 2 +- roms/vgabios | 1 - 18 files changed, 14 insertions(+), 22 deletions(-) create mode 100644 roms/config.vga-bochs-display create mode 100644 roms/config.vga-ramfb delete mode 160000 roms/vgabios -- 2.9.3

3 years, 3 months

seabios issue

by Roger Lawhorn

Hello, Recently my qemu with gpu passthrough setup quit working. I think it is seabios related. i have turned on debugging for seabios. Here is the output from seabios from a successful windows 10 boot using an emulated vga adapter: https://pastebin.com/f3DCqTbc Here is the output when using my nvidia gtx 880m 8gb gaming card: https://pastebin.com/GpWKZadh when seabios runs the option rom for nvidia it just halts. i have never debuged seabios before so i dont know what would normally show up at this point. i.e. is this normal or is something wrong. during the vga boot all 8 cpus go to 100% for a short time then drop. during the failed boot with nvidia 1 cpu goes to 100% and stays there forever. i have let it run all night at times. i am seeking to figure out if i have a seabios issue. i am running linux mint 18.3 and the repo copy of seabios is 1.8.2. i have booted this 100's of times and never had an issue before. thanks

3 years, 3 months

ACPI OEM Table ID length

by coypu＠sdf.org

Hi folks, I ran into this problem while building Xen. unfortunately, I have trouble building the same files with seabios git, and have even more limited ability to test the changes. Apparently ACPI says that the OEM Table Id must be length 8. Some of the tables in seabios use longer. newer iASL rejects this and fails to build the code. Most likely things handle it as if it was truncated, but perhaps it overran to the next field. I've used this diff, for your consideration. diff --git a/src/fw/ssdt-misc.dsl b/src/fw/ssdt-misc.dsl index acc850e..d1d2c9e 100644 --- a/src/fw/ssdt-misc.dsl +++ b/src/fw/ssdt-misc.dsl @@ -1,6 +1,6 @@ ACPI_EXTRACT_ALL_CODE ssdp_misc_aml -DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC", "BXSSDTSUSP", 0x1) +DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC", "BXSSDTSU", 0x1) { /**************************************************************** diff --git a/src/fw/ssdt-pcihp.dsl b/src/fw/ssdt-pcihp.dsl index cb24c11..518a5eb 100644 --- a/src/fw/ssdt-pcihp.dsl +++ b/src/fw/ssdt-pcihp.dsl @@ -1,6 +1,6 @@ ACPI_EXTRACT_ALL_CODE ssdp_pcihp_aml -DefinitionBlock ("ssdt-pcihp.aml", "SSDT", 0x01, "BXPC", "BXSSDTPCIHP", 0x1) +DefinitionBlock ("ssdt-pcihp.aml", "SSDT", 0x01, "BXPC", "BXSSDTPC", 0x1) { /****************************************************************

3 years, 4 months

[PATCH] cbvga_set_mode: refine clear display logic

by Gerd Hoffmann

There is no need to skip text mode clearing. Clearing the framebuffer should be safe on legacy calls too. Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- vgasrc/cbvga.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/vgasrc/cbvga.c b/vgasrc/cbvga.c index f6ebe71242..859524cb23 100644 --- a/vgasrc/cbvga.c +++ b/vgasrc/cbvga.c @@ -201,18 +201,20 @@ cbvga_set_mode(struct vgamode_s *vmode_g, int flags) */ u8 extra_stack = GET_BDA_EXT(flags) & BF_EXTRA_STACK; MASK_BDA_EXT(flags, BF_EMULATE_TEXT, emul ? BF_EMULATE_TEXT : 0); - if (!(flags & MF_NOCLEARMEM) && extra_stack) { + if (!(flags & MF_NOCLEARMEM)) { if (GET_GLOBAL(CBmodeinfo.memmodel) == MM_TEXT) { memset16_far(SEG_CTEXT, (void*)0, 0x0720, 80*25*2); return 0; } - struct gfx_op op; - init_gfx_op(&op, &CBmodeinfo); - op.x = op.y = 0; - op.xlen = GET_GLOBAL(CBmodeinfo.width); - op.ylen = GET_GLOBAL(CBmodeinfo.height); - op.op = GO_MEMSET; - handle_gfx_op(&op); + if (extra_stack || flags & MF_LEGACY) { + struct gfx_op op; + init_gfx_op(&op, &CBmodeinfo); + op.x = op.y = 0; + op.xlen = GET_GLOBAL(CBmodeinfo.width); + op.ylen = GET_GLOBAL(CBmodeinfo.height); + op.op = GO_MEMSET; + handle_gfx_op(&op); + } } return 0; } -- 2.9.3

3 years, 4 months

Re: [SeaBIOS] [PATCH v2 6/6] cbvga_set_mode: disable clearmem in windows x86 emulator.

by Patrick Rudolph

On Mon, 2018-06-04 at 09:31 -0400, Kevin O'Connor wrote: > On Mon, Jun 04, 2018 at 09:29:17AM +0200, Gerd Hoffmann wrote: > > Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> > > --- > > vgasrc/cbvga.c | 10 +++++++++- > > 1 file changed, 9 insertions(+), 1 deletion(-) > > > > diff --git a/vgasrc/cbvga.c b/vgasrc/cbvga.c > > index 3f16bee10c..f6ebe71242 100644 > > --- a/vgasrc/cbvga.c > > +++ b/vgasrc/cbvga.c > > @@ -192,8 +192,16 @@ int > > cbvga_set_mode(struct vgamode_s *vmode_g, int flags) > > { > > u8 emul = vmode_g == &CBemulinfo || GET_GLOBAL(CBmode) == 0x03; > > + /* > > + * The extra_stack flag is false when running in windows x86 > > + * emulator, to avoid stack switching triggering bugs. Using the > > + * same flag here to skip screen clearing, because the windows > > + * emulator seems to have problems to handle the int 1587 call > > + * too, and GO_MEMSET uses that. > > + */ > > + u8 extra_stack = GET_BDA_EXT(flags) & BF_EXTRA_STACK; > > MASK_BDA_EXT(flags, BF_EMULATE_TEXT, emul ? BF_EMULATE_TEXT : 0); > > - if (!(flags & MF_NOCLEARMEM)) { > > + if (!(flags & MF_NOCLEARMEM) && extra_stack) { > > FYI, extra_stack will only be true if CONFIG_VGA_ALLOCATE_EXTRA_STACK > is set, but I guess that's okay. > > Thanks, the series looks good to me. > -Kevin This commit breaks SeaBIOS' menu when used with coreboot's native graphic init in text mode. Payloads are not affacted (tested NTLDR and coreinfo). Everything works fine with native graphic init in high resolution framebuffer mode. I've got no debug log at hand, but I'll investigate asap. Tested on Lenovo T500 using libgfxinit with latest coreboot master. Regards, Patrick > > _______________________________________________ > SeaBIOS mailing list > SeaBIOS(a)seabios.org > https://mail.coreboot.org/mailman/listinfo/seabios

3 years, 4 months

Re: [SeaBIOS] [PATCH v2 6/6] cbvga_set_mode: disable clearmem in windows x86 emulator.

by Patrick Rudolph

On Fri, 2018-06-22 at 10:14 -0400, Kevin O'Connor wrote: > On Fri, Jun 22, 2018 at 08:42:50AM +0200, Gerd Hoffmann wrote: > > On Wed, Jun 20, 2018 at 08:00:28PM +0200, Patrick Rudolph wrote: > > > This commit breaks SeaBIOS' menu when used with coreboot's native > > > graphic init in text mode. Payloads are not affacted (tested NTLDR and > > > coreinfo). > > > Everything works fine with native graphic init in high resolution > > > framebuffer mode. I've got no debug log at hand, but I'll investigate > > > asap. > > > Tested on Lenovo T500 using libgfxinit with latest coreboot master. > > > > Hmm, no clue what could cause this. But clearing the memory is only > > problematic for the framebuffer case, so maybe the patch below helps? > > > > diff --git a/vgasrc/cbvga.c b/vgasrc/cbvga.c > > index f6ebe71242..a48f4dc885 100644 > > --- a/vgasrc/cbvga.c > > +++ b/vgasrc/cbvga.c > > @@ -201,18 +201,20 @@ cbvga_set_mode(struct vgamode_s *vmode_g, int flags) > > */ > > u8 extra_stack = GET_BDA_EXT(flags) & BF_EXTRA_STACK; > > MASK_BDA_EXT(flags, BF_EMULATE_TEXT, emul ? BF_EMULATE_TEXT : 0); > > - if (!(flags & MF_NOCLEARMEM) && extra_stack) { > > + if (!(flags & MF_NOCLEARMEM)) { > > if (GET_GLOBAL(CBmodeinfo.memmodel) == MM_TEXT) { > > memset16_far(SEG_CTEXT, (void*)0, 0x0720, 80*25*2); > > return 0; > > } > > - struct gfx_op op; > > - init_gfx_op(&op, &CBmodeinfo); > > - op.x = op.y = 0; > > - op.xlen = GET_GLOBAL(CBmodeinfo.width); > > - op.ylen = GET_GLOBAL(CBmodeinfo.height); > > - op.op = GO_MEMSET; > > - handle_gfx_op(&op); > > + if (extra_stack) { > > I'm also not sure on the cause, but I think it should be safe to > change this to: > > if (extra_stack || flags & MF_LEGACY) { > Seems to be the correct solution, as BF_EXTRA_STACK is set after cbvga_set_mode and thus extra_stack is 0 on first cbvga_set_mode call. > because if this is a legacy call then it should be safe to write to > highmem even if the last call was a vesa modeset. > > -Kevin

3 years, 4 months

[PATCH v2 0/3] qemu: add qemu ramfb support

by Gerd Hoffmann

Hi, Second version of the ramfb series. Turned out the previous version didn't work at all, appearently I've tested by accident with an older rom version which had a copy of the fw_cfg code instead of linking paravirt.o. Making the linked paravirt.o work turned out to be difficuilt due to dependencies on stuff like threads which isn't present in the vgabios builds. So I'm back to the version with the (stripped down) copy of the fw_cfg code ... Gerd Hoffmann (3): pmm: use tmp zone on oom vgasrc: add allocate_pmm() qemu: add qemu ramfb support Makefile | 2 +- vgasrc/vgahw.h | 28 +++++----- vgasrc/vgautil.h | 4 ++ src/pmm.c | 13 +++++ vgasrc/ramfb.c | 163 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ vgasrc/vgainit.c | 48 ++++++++++------ vgasrc/Kconfig | 7 +++ 7 files changed, 235 insertions(+), 30 deletions(-) create mode 100644 vgasrc/ramfb.c -- 2.9.3

3 years, 4 months

[PATCH] bochs_display_setup: return error on failure

by Gerd Hoffmann

Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- vgasrc/bochsdisplay.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/vgasrc/bochsdisplay.c b/vgasrc/bochsdisplay.c index e1f90f9678..6a75f3787e 100644 --- a/vgasrc/bochsdisplay.c +++ b/vgasrc/bochsdisplay.c @@ -38,7 +38,7 @@ bochs_display_setup(void) dprintf(1, "bochs-display: id is 0x%x, %s\n", id , id == VBE_DISPI_ID5 ? "good" : "FAIL"); if (id != VBE_DISPI_ID5) - return 0; + return -1; dprintf(1, "bochs-display: using %dx%d, %d bpp (%d stride)\n" , FRAMEBUFFER_WIDTH, FRAMEBUFFER_HEIGHT -- 2.9.3

3 years, 4 months

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SeaBIOS June 2018