July 2016 - OpenBIOS - mail.coreboot.org

[PATCH] libopenbios/bootinfo_load.c: Implement Mac OS 9.2 boot script support
by Programmingkid Dec. 25, 2017

Dec. 25, 2017

This patch makes booting Mac OS 9.2 possible. It replaces all occurrences of >r and r> with sub_>r and sub_r>. This allows for the return stack to be left alone. This patch also makes it so that the boot script is executed one line at a time. Signed-off-by: John Arbuckle <programmingkidx(a)gmail.com> Note: this patch depends on the strstr() and return stack substitution patches. Index: libopenbios/bootinfo_load.c =================================================================== --- libopenbios/bootinfo_load.c (revision 1395) +++ libopenbios/bootinfo_load.c (working copy) @@ -19,6 +19,7 @@ #include "libopenbios/bootinfo_load.h" #include "libopenbios/ofmem.h" #include "libc/vsprintf.h" +#include "libc/string.h" //#define DEBUG_BOOTINFO @@ -116,6 +117,75 @@ return LOADER_NOT_SUPPORT; } +// Replace all occurrences of orig_str in buffer with replace_str +static void replace_string(char *buffer, const char *orig_str, const char *replace_str) +{ + char *ptr; + int index, new_buf_index = 0; + const int max_size = 5000; + char *new_buffer = malloc(max_size * sizeof(char)); + + for (index = 0; index < strlen(buffer); index++) { + if (buffer[index] == orig_str[0]) { + ptr = strstr(buffer + index, orig_str); + + // if we encountered an orig_str in the buffer + if (index == (ptr - buffer)) { + sprintf(new_buffer + new_buf_index, "%s ", replace_str); + new_buf_index += strlen(replace_str) + 1; + index += strlen(orig_str); + continue; + } + } + new_buffer[new_buf_index++] = buffer[index]; + } + + // copy new_buffer into buffer + for (index = 0; index < strlen(new_buffer); index++) { + buffer[index] = new_buffer[index]; + } + buffer[index+1] = '\0'; +} + +/* Replace >r and r> with sub_>r and sub_r> */ +static void replace_return_stack_words(char *bootscript) +{ + const char *find_str1 = ">r"; + const char *replace_str1 = "sub_>r"; + const char *find_str2 = "r>"; + const char *replace_str2 = "sub_r>"; + + replace_string(bootscript, find_str1, replace_str1); + replace_string(bootscript, find_str2, replace_str2); +} + +/* Runs the bootscript one line at a time */ +void run_script(char *bootscript) +{ + int index = 0, buf_index = 0; + char c; + char *buffer = malloc(1000 * sizeof(char)); + + while (1) { + c = bootscript[index]; + + // fill up buffer + while (c != '\n' && c != '\r' && c != '\0') { + buffer[buf_index++] = c; + c = bootscript[++index]; + } + buffer[buf_index] = '\0'; + buf_index = 0; + index++; + DPRINTF("%s\n", buffer); + feval(buffer); + if (c == '\0') { + break; + } + } + free(buffer); +} + /* Parse SGML structure like: <chrp-boot> @@ -209,9 +279,6 @@ script = 0; bootscript[scriptlen] = '\0'; - DPRINTF("got bootscript %s\n", - bootscript); - scriptvalid = -1; break; @@ -261,8 +328,8 @@ /* If the payload is bootinfo then we execute it immediately */ if (scriptvalid) { - DPRINTF("bootscript: %s\n", bootscript); - feval(bootscript); + replace_return_stack_words(bootscript); + run_script(bootscript); } else DPRINTF("Unable to parse bootinfo bootscript\n");

4 9

[PATCH 0/5] Enable bus master support for rtl8139 network cards on Apple PPC machines
by Mark Cave-Ayland Aug. 7, 2016

Aug. 7, 2016

This patchset is loosely based on earlier work by BALATON Zoltan <balaton(a)eik.bme.hu> and provides basic infrastructure to allow OpenBIOS to enable PCI device bus mastering. Following on from discussions on the QEMU mailing list, it seems that Apple's OF enables bus mastering for some PCI devices by default, and as a result some buggy drivers forget to explicitly enable it and hence these devices fail under QEMU's emulation. The first 3 patches add the basic support routines while the last 2 patches enable bus mastering for the rtl8139 card on Apple PPC machines which is required for OS X and MorphOS. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> Mark Cave-Ayland (5): pci: introduce ob_pci_enable_bus_master() function pci: introduce ob_pci_is_bus_master_capable() function pci: add PCI database entry for rtl8139 network card pci: add rtl8139_config_cb() to configure rtl8139 network cards ppc: mark PCI slots 0-2 for Apple PPC machies as bus master capable openbios-devel/arch/ppc/qemu/init.c | 9 ++++--- openbios-devel/drivers/pci.c | 44 +++++++++++++++++++++++++++++++++ openbios-devel/drivers/pci_database.c | 6 +++++ openbios-devel/drivers/pci_database.h | 4 +++ openbios-devel/include/drivers/pci.h | 2 ++ 5 files changed, 62 insertions(+), 3 deletions(-) -- 1.7.10.4

5 17

[Qemu-ppc] [PATCH] ppc: Add MacOS VGA driver ROM
by Programmingkid Aug. 2, 2016

Aug. 2, 2016

On Jul 27, 2016, at 6:10 AM, qemu-ppc-request(a)nongnu.org wrote: > Message: 1 > Date: Wed, 27 Jul 2016 18:27:33 +1000 > From: Benjamin Herrenschmidt <benh(a)kernel.crashing.org> > To: qemu-ppc(a)nongnu.org, David Gibson <david(a)gibson.dropbear.id.au> > Cc: qemu-devel(a)nongnu.org, Mark Cave-Ayland > <mark.cave-ayland(a)ilande.co.uk>, Alexander Graf <agraf(a)suse.de> > Subject: [Qemu-ppc] [PATCH] ppc: Add MacOS VGA driver ROM > Message-ID: <1469608053.5978.132.camel(a)kernel.crashing.org> > Content-Type: text/plain; charset="UTF-8" > > The project is at https://github.com/ozbenh/QemuMacDrivers > > This adds a native MacOS driver in ROM (which can be picked up > by MacOS once OpenBIOS has been updated if Mark accepts > the patches I sent him) which allows MacOS classic > (tested 9.2.1) and MacOS X (tested 10.1.4 and 10.4) > to properly use QEMU std VGA (10.1.x doesn't work at all > without it, the others get the ability to change resolution > and color depth). > > Building the ROM is tricky and requires CodeWarrior for MacOS > so I include a pre-built binary. > > Signed-off-by: Benjamin Herrenschmidt <benh(a)kernel.crashing.org> > --- > hw/ppc/mac_newworld.c | 8 ++++++++ > pc-bios/qemu_vga.ndrv | Bin 0 -> 12808 bytes > 2 files changed, 8 insertions(+) > create mode 100644 pc-bios/qemu_vga.ndrv > > diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c > index 7d25106..5029345 100644 > --- a/hw/ppc/mac_newworld.c > +++ b/hw/ppc/mac_newworld.c > @@ -511,6 +511,13 @@ static int core99_kvm_type(const char *arg) > return 2; > } > > +#define MAC_CORE99_COMPAT \ > + { \ > + .driver = "pci-vga", \ > + .property = "romfile", \ > + .value = "qemu_vga.ndrv", \ > + }, > + > static void core99_machine_class_init(ObjectClass *oc, void *data) > { > MachineClass *mc = MACHINE_CLASS(oc); > @@ -520,6 +527,7 @@ static void core99_machine_class_init(ObjectClass *oc, void *data) > mc->max_cpus = MAX_CPUS; > mc->default_boot_order = "cd"; > mc->kvm_type = core99_kvm_type; > + 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zcoFO=D(C7aL5J-*|1(0LbSOQVGP~wJ+zkIjpHB4YM4wLd=|rDS^yx&OP91<go#?{} > zc}~d7w|fR<^yPfjq&eRNeg^Ov%1rQKTsi*#*R$Hxzc&(%;sR>k<aB3qro=C6&J<Tf > zab<L-czZ&PQOWA9e1dOPQ|VAN?Z=(gDDJ>o>TgYk5*s4JxagWxagCKOs7BNjvyy$0 > zq&l1~Q;DmnrP|yY!Ufu%*t&QhF6S0VyF;ZOHmaN>Nd8$+4SBq#keCc@4usYhazY_! > zxw(*0O%q?C{v@)P5nh{!C(|iEmfxmOQe82cOvRH0vLOE}YJJJjrmv_*pM|x=-w)TE > zHHQ4{*@Di|zH|k&qRYy~%(H0V3&c0!y7a6*A-YTrwMnY$aE}>_nO_(dSDlM{n;X~i > zP)Ze%s#pM|$KX@A7hGJkDjqI05!A)xBymf-R29*1<2n*sUmyr0nZ@0|DUu%EFpCWN > ztJO>zSHbBncL|MnstJUWp^+4pJhSVF?Wd5UWZ-KNdqAUfg;dFLmlw||<X9a~#2o%a > z+5Gu>`U5?G+vEGr(zf=DeAlX#tG=@|EUy}>Vt2+;rcWX=_xR++RZI+9PO0fM21tQ9 > z!~a!mbv!Mvi;u>_h}?1%OH5uYkEXyRht+i<MDf-tCK8~$@w(QwHpu7IX}SY1r{i)e > zGBO&4JIZ%0?*sGdxNKIX%<J{C=k|Vit^D0<T8Kf8p}!=*Xs^OIz)yjPx-(-|Yb!{w > zxlGoz>KRI<BI}WBt__(94lA>}JJ8o6ifnoJ9ms9p%J2?y%ry3V#YhAq(2=#7oDlcm > S3pms9xI7eDPqe?>@BaW(s=rMD > > literal 0 > HcmV?d00001 Your patch does successfully work with Mac OS 10.4.0, Mac OS 9.2.1, and Mac OS 9.0.4. Great job :) Reviewed-by: John Arbuckle <programmingkidx(a)gmail.com>

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[PATCH 0/2] Add legacy virtio-blk driver to OpenBIOS
by Mark Cave-Ayland Aug. 1, 2016

Aug. 1, 2016

This patchset implements a legacy virtio-blk driver for OpenBIOS based upon Alex Graf's s390 driver included with QEMU and enables it for SPARC64 and PPC builds. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> Mark Cave-Ayland (2): drivers: add legacy virtio-blk driver config: enable virtio-blk driver for default PPC and SPARC64 builds config/examples/ppc_config.xml | 1 + config/examples/sparc64_config.xml | 1 + drivers/build.xml | 1 + drivers/pci.c | 18 ++ drivers/pci_database.c | 2 +- drivers/pci_database.h | 1 + drivers/virtio.c | 413 ++++++++++++++++++++++++++++++++++++ drivers/virtio.h | 331 +++++++++++++++++++++++++++++ include/drivers/drivers.h | 4 + 9 files changed, 771 insertions(+), 1 deletion(-) create mode 100644 drivers/virtio.c create mode 100644 drivers/virtio.h -- 1.7.10.4

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[PATCH] Fix the location of the COPYING file
by Thomas Huth July 31, 2016

July 31, 2016

The COPYING file is in the main directory, not in the Documentation folder. Signed-off-by: Thomas Huth <thuth(a)redhat.com> --- README | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README b/README index b6a9978..9f4b705 100644 --- a/README +++ b/README @@ -122,7 +122,7 @@ CREDITS ------- OpenBIOS was developed by Stefan Reinauer, Samuel Rydh and Patrick Mauritz. The OpenBIOS IDE driver was written by Jens Axboe. -For license details on this piece of software, see Documentation/COPYING. +For license details on this piece of software, see the file COPYING. If you have patches, questions, comments, feel free to contact the OpenBIOS -- 1.8.3.1

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[PATCH 0/2] Miscellaneous minor fixes
by Mark Cave-Ayland July 31, 2016

July 31, 2016

This patchset fixes up a couple of minor bugs found whilst developing the virtio driver (and should be considered a pre-requisite). Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> Mark Cave-Ayland (2): ppc: fix va2pa() and pa2va() OF end range calculation libopenbios: don't allow find_package_method() to push a NULL for empty strings arch/ppc/qemu/ofmem.c | 4 ++-- libopenbios/bindings.c | 7 ++++++- 2 files changed, 8 insertions(+), 3 deletions(-) -- 1.7.10.4

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[Qemu-ppc] [PATCH] ppc: Add MacOS VGA driver ROM
by Programmingkid July 27, 2016

July 27, 2016

> > The project is at https://github.com/ozbenh/QemuMacDrivers > > This adds a native MacOS driver in ROM (which can be picked up > by MacOS once OpenBIOS has been updated if Mark accepts > the patches I sent him) which allows MacOS classic > (tested 9.2.1) and MacOS X (tested 10.1.4 and 10.4) > to properly use QEMU std VGA (10.1.x doesn't work at all > without it, the others get the ability to change resolution > and color depth). > > Building the ROM is tricky and requires CodeWarrior for MacOS > so I include a pre-built binary. > > Signed-off-by: Benjamin Herrenschmidt <benh(a)kernel.crashing.org> Could we see the patches you sent to Mark? Right now when I try to boot QEMU with your patch I see this message: qemu-system-ppc: Initialization of device VGA failed: failed to find romfile "qemu_vga.ndrv" Thanks

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[PATCHv2 0/3] MacOS 9 fixups
by Mark Cave-Ayland July 18, 2016

July 18, 2016

This patchset fixes up the r-stack in interpret mode and the evaluate word so OpenBIOS can boot OS 9 without r-stack corruption or introducing any regressions. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> v2: - Move r-stack commands to a separate rstack.fs file - Minor tweaks suggested by Segher Cormac O'Brien (1): interpreter.fs: allow evaluate to split words on CR as well as LF Mark Cave-Ayland (2): rstack.fs: add pseudo r-stack implementation for interpret mode interpreter.fs: don't clobber stack across evaluate strings split on newlines forth/bootstrap/interpreter.fs | 4 +++- forth/lib/build.xml | 1 + forth/lib/rstack.fs | 21 +++++++++++++++++++++ 3 files changed, 25 insertions(+), 1 deletion(-) create mode 100644 forth/lib/rstack.fs -- 1.7.10.4

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[PATCH 0/3] MacOS 9 fixups
by Mark Cave-Ayland July 17, 2016

July 17, 2016

This patchset fixes up the r-stack in interpret mode and the evaluate word so OpenBIOS can boot OS 9 without r-stack corruption or introducing any regressions. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk> Cormac O'Brien (1): interpreter.fs: allow evaluate to split words on CR as well as LF Mark Cave-Ayland (2): bootstrap.fs: add pseudo r-stack implementation for interpret mode interpreter.fs: don't clobber stack across evaluate strings split on newlines forth/bootstrap/bootstrap.fs | 14 ++++++++++++++ forth/bootstrap/interpreter.fs | 4 +++- 2 files changed, 17 insertions(+), 1 deletion(-) -- 1.7.10.4

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Re: [OpenBIOS] Found out why replacing '\r' with '\n' works
by Programmingkid July 17, 2016

July 17, 2016

On Apr 17, 2016, at 11:05 AM, Mark Cave-Ayland wrote: > On 17/04/16 15:50, Programmingkid wrote: > >> Good news, I found out why replacing '\r' with '\n' works to boot Mac OS 9. It is because there are several words that require that character to be at the end of the line. >> >> http://www.complang.tuwien.ac.at/forth/1275.ps >> This is the specifications to Open Firmware. Just do a search for EOL (End of Line a.k.a '\n'). You will see that several words need it in order to work. >> >> They will look like this: >> >> dev ( "device-specifier<eol>" -- ) >> >> The <eol> text is what specifies that '\n' should be at the end of the line. > > Really? Interesting. Can you provide a self-contained test case that > demonstrates that it is in fact the line ending that causes this > independent of the r-stack manipulation? Bear in mind that OpenBIOS may > deviate from the specification in its behaviour here. I implemented another stack that two new words use in place of >r and r> when running code in the bootscript. I see this message with and without the '\r' to '\n' patch: >> Dictionary space overflow: dicthead=000c3fe4 dictlimit=00080000 this image is not for this platform This means the implementing another stack did not fix the problem. It appears to make it worse. Here is the patch: Index: include/libc/string.h =================================================================== --- include/libc/string.h (revision 1391) +++ include/libc/string.h (working copy) @@ -47,7 +47,7 @@ extern char *strdup( const char *str ); extern int strcasecmp( const char *cs, const char *ct ); extern int strncasecmp( const char *cs, const char *ct, size_t count ); - +extern char *strstr(char *buffer, const char *search_string); extern char *strncpy_nopad( char *dest, const char *src, size_t n ); #define _U 0x01 /* upper */ Index: kernel/bootstrap.c =================================================================== --- kernel/bootstrap.c (revision 1391) +++ kernel/bootstrap.c (working copy) @@ -89,7 +89,7 @@ "here", "here!", "dobranch", "do?branch", "unaligned-w@", "unaligned-w!", "unaligned-l@", "unaligned-l!", "ioc@", "iow@", "iol@", "ioc!", "iow!", "iol!", "i", "j", "call", "sys-debug", - "$include", "$encode-file", "(debug", "(debug-off)" + "$include", "$encode-file", "(debug", "(debug-off)", "sub_>r", "sub_r>" }; /* Index: kernel/forth.c =================================================================== --- kernel/forth.c (revision 1391) +++ kernel/forth.c (working copy) @@ -1848,6 +1848,37 @@ PUSH(rstack[rstackcnt - 2]); } +/* The substitute return stack */ +#define MAX_SUB_RSTACK_SIZE 100 +static int sub_return_stack[MAX_SUB_RSTACK_SIZE]; +static int top = 0; + +/* + * sub_>r ( i -- ) (Substitute R: -- i ) + */ + +static void sub_gt_r(void) +{ + if (top >= MAX_SUB_RSTACK_SIZE) { + printf_console("Stack overflow\n"); + return; + } + sub_return_stack[top++] = POP(); +} + +/* + * sub_r> ( -- i ) (Substitute R: i -- ) + */ + +static void sub_r_gt(void) +{ + if (top < 0 ) { + printf_console("Stack underflow\n"); + return; + } + PUSH(sub_return_stack[top--]); +} + /* words[] is a function array of all native code functions used by * the dictionary, i.e. CFAs and primitives. * Any change here needs a matching change in the primitive word's @@ -1963,4 +1994,6 @@ do_encode_file, /* $encode-file */ do_debug_xt, /* (debug */ do_debug_off, /* (debug-off) */ + sub_gt_r, /* sub_>r */ + sub_r_gt /* sub_r> */ }; Index: libc/string.c =================================================================== --- libc/string.c (revision 1391) +++ libc/string.c (working copy) @@ -385,3 +385,30 @@ return __res; } +// Search for a string within another string +char *strstr(char *buffer, const char *search_string) +{ + if (!*search_string || (strlen(search_string) == 0)) { + return buffer; + } + + int match_found, index, index2; + for (index = 0; index < strlen(buffer); index++) { + if (buffer[index] == search_string[0]) { + match_found = 1; + // see if we have a match + for (index2 = 0; index2 < strlen(search_string); index2++) { + if (buffer[index + index2] != search_string[index2]) { + match_found = 0; // match not found + break; + } + } + if(match_found == 1) { + return &buffer[index]; + } + } + } + + // Could not find search_string in buffer + return NULL; +} Index: libopenbios/bootinfo_load.c =================================================================== --- libopenbios/bootinfo_load.c (revision 1391) +++ libopenbios/bootinfo_load.c (working copy) @@ -19,6 +19,7 @@ #include "libopenbios/bootinfo_load.h" #include "libopenbios/ofmem.h" #include "libc/vsprintf.h" +#include "libc/string.h" //#define DEBUG_BOOTINFO @@ -116,6 +117,60 @@ return LOADER_NOT_SUPPORT; } +static void erase_memory(char *memory, int size) +{ + int i; + for(i = 0; i < size; i++) { + memory[i] = ' '; + } +} + +// Replace all occurrences of orig_str in buffer with replace_str +static void replace_string(char *buffer, const char *orig_str, const char *replace_str) +{ + char *ptr; + int index, new_buf_index = 0; + const int max_size = 5000; + char *new_buffer = malloc(max_size * sizeof(char)); + erase_memory(new_buffer, max_size); + + for (index = 0; index < strlen(buffer); index++) { + if (buffer[index] == orig_str[0]) { + ptr = strstr(buffer + index, orig_str); + + // if we encountered an orig_str in the buffer + if (index == (ptr - buffer)) { + sprintf(new_buffer + new_buf_index, "%s ", replace_str); + new_buf_index += strlen(replace_str) + 1; + index += strlen(orig_str); + continue; + } + } + new_buffer[new_buf_index++] = buffer[index]; + } + + // Clear the origial buffer + erase_memory(buffer, max_size); + + // copy new_buffer into buffer + for (index = 0; index < strlen(new_buffer); index++) { + buffer[index] = new_buffer[index]; + } + buffer[index+1] = '\0'; +} + +/* Replace >r and r> with sub_>r and sub_r> */ +static void replace_return_stack_words(char *bootscript) +{ + const char *find_str1 = ">r"; + const char *replace_str1 = "sub_>r"; + const char *find_str2 = "r>"; + const char *replace_str2 = "sub_r>"; + + replace_string(bootscript, find_str1, replace_str1); + replace_string(bootscript, find_str2, replace_str2); +} + /* Parse SGML structure like: <chrp-boot> @@ -190,8 +245,11 @@ while (current < size) { c = base[current++]; + + if(c == '\r') + c = '\n'; - if (c == '<') { + if (c == '<') { script = 0; tag = 1; taglen = 0; @@ -262,6 +320,7 @@ /* If the payload is bootinfo then we execute it immediately */ if (scriptvalid) { DPRINTF("bootscript: %s\n", bootscript); + replace_return_stack_words(bootscript); feval(bootscript); } else

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