Re: [SeaBIOS] [Qemu-devel] SeaBIOS error with Juniper FreeBSD kernel
by Kevin O'Connor
On Sun, Feb 21, 2010 at 04:18:38PM -0700, Brandon Bennett wrote:
> > On Sat, Feb 20, 2010 at 9:05 PM, Kevin O'Connor <kevin(a)koconnor.net> wrote:
> >> Should a kernel fail during boot, I'd suspect it doesn't like one of
> >> the apm/pcibios callbacks, or it doesn't like one of the
> >> smbios/mptable/acpi tables. You could try compiling the SeaBIOS code
> >> (see http://seabios.org/Download ) and increasing the debugging by
> >> modifying src/config.h. Specifically, you could increase
> >> CONFIG_DEBUG_LEVEL, and set DEBUG_HDL_pcibios32 and DEBUG_HDL_apm to
> >> 1. Also, you could try disabling some of the features to see if that
> >> prevents the fault (eg, disabling CONFIG_ACPI / CONFIG_SMBIOS /
> >> CONFIG_MPTABLE).
> >
>
> I have narrowed it down to SMBIOS. If I disable CONFIG_SMBIOS the
> image boots up fine.
Gleb, have you seen this thread?
Some of the recent changes to smbios that look like possible culprits
are:
Make SMBIOS table pass MS SVVP test
Use MaxCountCPUs during building of per cpu tables.
Add malloc_high/fseg() and rework bios table creation to use them.
There were other changes, but the comments indicate they were only
ports of changes already in bochs. I suppose it's also possible the
lack of smbios is turning off some other feature in the guest (eg,
acpi) that's the real culprit.
-Kevin
7 years, 8 months
[PATCH] support piix PAM registers in KVM
by Gleb Natapov
Without this BIOS fails to remap 0xf0000 memory from ROM to RAM so writes
to F-segment modify ROM content instead of memory copy. Since QEMU does
not reloads ROMs during reset on next boot modified copy of BIOS is used.
Signed-off-by: Gleb Natapov <gleb(a)redhat.com>
diff --git a/hw/piix_pci.c b/hw/piix_pci.c
index 933ad86..0bf435d 100644
--- a/hw/piix_pci.c
+++ b/hw/piix_pci.c
@@ -99,10 +99,6 @@ static void i440fx_update_memory_mappings(PCII440FXState *d)
int i, r;
uint32_t smram, addr;
- if (kvm_enabled()) {
- /* FIXME: Support remappings and protection changes. */
- return;
- }
update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3);
for(i = 0; i < 12; i++) {
r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3;
--
Gleb.
7 years, 9 months
[PATCH] fix virtio-blk failure after reboot
by Gleb Natapov
vring_virtqueue should be zeroed otherwise old values will be reused
after reboot.
Signed-off-by: Gleb Natapov <gleb(a)redhat.com>
diff --git a/src/virtio-blk.c b/src/virtio-blk.c
index 34d7863..7a25826 100644
--- a/src/virtio-blk.c
+++ b/src/virtio-blk.c
@@ -109,6 +109,7 @@ init_virtio_blk(u16 bdf)
goto fail;
}
memset(vdrive_g, 0, sizeof(*vdrive_g));
+ memset(vq, 0, sizeof(*vq));
vdrive_g->drive.type = DTYPE_VIRTIO;
vdrive_g->drive.cntl_id = bdf;
vdrive_g->vq = vq;
--
Gleb.
8 years, 4 months
Re: [SeaBIOS] [PATCH] Allow rom to grow to 256K.
by H. Peter Anvin
On 09/25/2010 09:55 AM, Kevin O'Connor wrote:
> Enable rom size to be over 128K.
>
> Apparently, only the first 128K of the rom are mirrored to the
> 0xc0000-0xfffff area under qemu, so make sure to copy the rom (via
> make_bios_writable) in the non-init part of the startup code. This
> ensure the copy code is itself available.
This is pretty typical... the BIOS is supposed to fit within the
0xe0000..0xfffff area during actual execution.
-hpa
8 years, 5 months
[PATCH] Cleanup - it's no longer necessary to manually reset global variables.
by Kevin O'Connor
Now that a soft-reboot forces a hard-reboot, it is no longer necessary
to manually reset global variables.
---
src/block.c | 11 -----------
src/cdrom.c | 2 --
src/clock.c | 1 -
src/coreboot.c | 6 ------
src/disk.h | 1 -
src/memmap.c | 7 -------
src/memmap.h | 1 -
src/optionroms.c | 5 +----
src/pmm.c | 6 ------
src/post.c | 3 ---
src/smp.c | 8 --------
src/stacks.c | 2 --
src/usb-hid.c | 9 ---------
src/usb-hid.h | 1 -
src/usb.c | 2 --
src/util.h | 1 -
src/vgahooks.c | 5 ++---
17 files changed, 3 insertions(+), 68 deletions(-)
diff --git a/src/block.c b/src/block.c
index b6b1902..3f4b13f 100644
--- a/src/block.c
+++ b/src/block.c
@@ -329,14 +329,3 @@ send_disk_op(struct disk_op_s *op)
return stack_hop((u32)op, GET_SEG(SS), __send_disk_op);
}
-
-
-/****************************************************************
- * Setup
- ****************************************************************/
-
-void
-drive_setup(void)
-{
- memset(&Drives, 0, sizeof(Drives));
-}
diff --git a/src/cdrom.c b/src/cdrom.c
index 655ee00..349e401 100644
--- a/src/cdrom.c
+++ b/src/cdrom.c
@@ -109,8 +109,6 @@ cdemu_setup(void)
{
if (!CONFIG_CDROM_EMU)
return;
- cdemu_drive_gf = NULL;
- cdemu_buf_fl = NULL;
if (!Drives.cdcount)
return;
diff --git a/src/clock.c b/src/clock.c
index f6a43e9..fcdc698 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -211,7 +211,6 @@ timer_setup(void)
u32 ticks = (hours * 60 + minutes) * 60 + seconds;
ticks = ((u64)ticks * PIT_TICK_RATE) / PIT_TICK_INTERVAL;
SET_BDA(timer_counter, ticks);
- SET_BDA(timer_rollover, 0);
enable_hwirq(0, FUNC16(entry_08));
enable_hwirq(8, FUNC16(entry_70));
diff --git a/src/coreboot.c b/src/coreboot.c
index db0063b..50d300c 100644
--- a/src/coreboot.c
+++ b/src/coreboot.c
@@ -126,8 +126,6 @@ coreboot_fill_map(void)
{
dprintf(3, "Attempting to find coreboot table\n");
- CBMemTable = NULL;
-
// Find coreboot table.
struct cb_header *cbh = find_cb_header(0, 0x1000);
if (!cbh)
@@ -290,10 +288,6 @@ coreboot_copy_biostable(void)
dprintf(3, "Relocating coreboot bios tables\n");
- // Init variables set in coreboot table memory scan.
- PirOffset = 0;
- RsdpAddr = 0;
-
// Scan CB_MEM_TABLE areas for bios tables.
int i, count = MEM_RANGE_COUNT(cbm);
for (i=0; i<count; i++) {
diff --git a/src/disk.h b/src/disk.h
index 9e5b083..55a5da3 100644
--- a/src/disk.h
+++ b/src/disk.h
@@ -234,7 +234,6 @@ void map_hd_drive(struct drive_s *drive_g);
void map_cd_drive(struct drive_s *drive_g);
int process_op(struct disk_op_s *op);
int send_disk_op(struct disk_op_s *op);
-void drive_setup(void);
// floppy.c
extern struct floppy_ext_dbt_s diskette_param_table2;
diff --git a/src/memmap.c b/src/memmap.c
index 84bc4fa..ea05953 100644
--- a/src/memmap.c
+++ b/src/memmap.c
@@ -119,13 +119,6 @@ add_e820(u64 start, u64 size, u32 type)
//dump_map();
}
-// Prep for memmap stuff - init bios table locations.
-void
-memmap_setup(void)
-{
- e820_count = 0;
-}
-
// Report on final memory locations.
void
memmap_finalize(void)
diff --git a/src/memmap.h b/src/memmap.h
index d4154c1..01c7ddb 100644
--- a/src/memmap.h
+++ b/src/memmap.h
@@ -17,7 +17,6 @@ struct e820entry {
};
void add_e820(u64 start, u64 size, u32 type);
-void memmap_setup(void);
void memmap_finalize(void);
// A typical OS page size
diff --git a/src/optionroms.c b/src/optionroms.c
index ceb4060..854c33f 100644
--- a/src/optionroms.c
+++ b/src/optionroms.c
@@ -72,7 +72,7 @@ struct pnp_data {
#define PCIROM_CODETYPE_X86 0
// The end of the last deployed rom.
-u32 RomEnd;
+u32 RomEnd = BUILD_ROM_START;
/****************************************************************
@@ -423,9 +423,6 @@ optionrom_setup(void)
void
vga_setup(void)
{
- VGAbdf = -1;
- RomEnd = BUILD_ROM_START;
-
if (! CONFIG_OPTIONROMS)
return;
diff --git a/src/pmm.c b/src/pmm.c
index bb90ff0..e0770ac 100644
--- a/src/pmm.c
+++ b/src/pmm.c
@@ -193,12 +193,6 @@ malloc_setup(void)
ASSERT32FLAT();
dprintf(3, "malloc setup\n");
- ZoneLow.info = ZoneHigh.info = ZoneFSeg.info = NULL;
- ZoneTmpLow.info = ZoneTmpHigh.info = NULL;
-
- // Clear memory in 0xf0000 area.
- memset(BiosTableSpace, 0, CONFIG_MAX_BIOSTABLE);
-
// Populate temp high ram
u32 highram = 0;
int i;
diff --git a/src/post.c b/src/post.c
index a72b8cd..4e42731 100644
--- a/src/post.c
+++ b/src/post.c
@@ -211,7 +211,6 @@ maininit(void)
mathcp_setup();
// Initialize mtrr
- smp_probe_setup();
mtrr_setup();
// Initialize pci
@@ -220,7 +219,6 @@ maininit(void)
// Initialize internal tables
boot_setup();
- drive_setup();
// Start hardware initialization (if optionrom threading)
if (CONFIG_THREADS && CONFIG_THREAD_OPTIONROMS)
@@ -327,7 +325,6 @@ void VISIBLE32INIT
post(void)
{
// Detect ram and setup internal malloc.
- memmap_setup();
qemu_cfg_port_probe();
ram_probe();
malloc_setup();
diff --git a/src/smp.c b/src/smp.c
index 38e117e..40f5451 100644
--- a/src/smp.c
+++ b/src/smp.c
@@ -127,11 +127,3 @@ smp_probe(void)
dprintf(1, "Found %d cpu(s) max supported %d cpu(s)\n", readl(&CountCPUs),
MaxCountCPUs);
}
-
-// Reset variables to zero
-void
-smp_probe_setup(void)
-{
- CountCPUs = 0;
- smp_mtrr_count = 0;
-}
diff --git a/src/stacks.c b/src/stacks.c
index dade3af..d541a4f 100644
--- a/src/stacks.c
+++ b/src/stacks.c
@@ -195,8 +195,6 @@ thread_setup(void)
{
MainThread.next = &MainThread;
MainThread.pprev = &MainThread.next;
- MainThread.stackpos = NULL;
- CanPreempt = 0;
}
// Return the 'struct thread_info' for the currently running thread.
diff --git a/src/usb-hid.c b/src/usb-hid.c
index b88d684..168b7fa 100644
--- a/src/usb-hid.c
+++ b/src/usb-hid.c
@@ -130,15 +130,6 @@ usb_hid_init(struct usb_pipe *pipe
return -1;
}
-void
-usb_hid_setup(void)
-{
- if (CONFIG_USB_KEYBOARD)
- keyboard_pipe = NULL;
- if (CONFIG_USB_MOUSE)
- mouse_pipe = NULL;
-}
-
/****************************************************************
* Keyboard events
diff --git a/src/usb-hid.h b/src/usb-hid.h
index d8199b9..7fbcf4b 100644
--- a/src/usb-hid.h
+++ b/src/usb-hid.h
@@ -6,7 +6,6 @@ struct usb_interface_descriptor;
struct usb_pipe;
int usb_hid_init(struct usb_pipe *pipe
, struct usb_interface_descriptor *iface, int imax);
-void usb_hid_setup(void);
inline int usb_kbd_active(void);
inline int usb_kbd_command(int command, u8 *param);
inline int usb_mouse_active(void);
diff --git a/src/usb.c b/src/usb.c
index cefc5f3..aa8d72c 100644
--- a/src/usb.c
+++ b/src/usb.c
@@ -423,8 +423,6 @@ usb_setup(void)
dprintf(3, "init usb\n");
- usb_hid_setup();
-
// Look for USB controllers
int ehcibdf = -1;
int count = 0;
diff --git a/src/util.h b/src/util.h
index c27037a..1823fd4 100644
--- a/src/util.h
+++ b/src/util.h
@@ -358,7 +358,6 @@ extern u32 CountCPUs;
extern u32 MaxCountCPUs;
void wrmsr_smp(u32 index, u64 val);
void smp_probe(void);
-void smp_probe_setup(void);
// coreboot.c
struct cbfs_file;
diff --git a/src/vgahooks.c b/src/vgahooks.c
index 14678be..eb4dfa8 100644
--- a/src/vgahooks.c
+++ b/src/vgahooks.c
@@ -13,7 +13,7 @@
#include "config.h" // CONFIG_*
// The Bus/Dev/Fn of the primary VGA device.
-int VGAbdf VAR16VISIBLE;
+int VGAbdf VAR16VISIBLE = -1;
// Coreboot board detected.
int CBmainboard VAR16VISIBLE;
@@ -305,11 +305,10 @@ vgahook_setup(const char *vendor, const char *part)
if (! CONFIG_VGAHOOKS)
return;
- CBmainboard = 0;
for (i=0; i<(sizeof(mainboard_list) / sizeof(mainboard_list[0])); i++) {
if (!strcmp(vendor, mainboard_list[i].vendor) &&
!strcmp(part, mainboard_list[i].device)) {
- printf("Found mainboard %s %s\n", vendor, part);
+ printf("Found mainboard %s %s\n", vendor, part);
CBmainboard = mainboard_list[i].type;
break;
}
--
1.7.2.3
8 years, 5 months
[PATCH] Allow rom to grow to 256K.
by Kevin O'Connor
Enable rom size to be over 128K.
Apparently, only the first 128K of the rom are mirrored to the
0xc0000-0xfffff area under qemu, so make sure to copy the rom (via
make_bios_writable) in the non-init part of the startup code. This
ensure the copy code is itself available.
---
src/post.c | 13 ++++++-------
tools/checkrom.py | 2 ++
2 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/src/post.c b/src/post.c
index 4a75f51..a72b8cd 100644
--- a/src/post.c
+++ b/src/post.c
@@ -321,18 +321,11 @@ reloc_init(void)
func();
}
-static int HaveRunPost;
-
// Start of Power On Self Test (POST) - the BIOS initilization phase.
// This function sets up for and attempts relocation of the init code.
void VISIBLE32INIT
post(void)
{
- // Allow writes to modify bios area (0xf0000)
- make_bios_writable();
-
- HaveRunPost = 1;
-
// Detect ram and setup internal malloc.
memmap_setup();
qemu_cfg_port_probe();
@@ -347,6 +340,8 @@ post(void)
* POST entry point
****************************************************************/
+static int HaveRunPost;
+
// Attempt to invoke a hard-reboot.
static void
tryReboot(void)
@@ -385,6 +380,10 @@ _start(void)
// This is a soft reboot - invoke a hard reboot.
tryReboot();
+ // Allow writes to modify bios area (0xf0000)
+ make_bios_writable();
+ HaveRunPost = 1;
+
// Perform main setup code.
post();
}
diff --git a/tools/checkrom.py b/tools/checkrom.py
index 42cf2df..6309528 100755
--- a/tools/checkrom.py
+++ b/tools/checkrom.py
@@ -24,6 +24,8 @@ def main():
finalsize = 64*1024
if datasize > 64*1024:
finalsize = 128*1024
+ if datasize > 128*1024:
+ finalsize = 256*1024
# Sanity checks
start = symbols['code32flat_start'].offset
--
1.7.2.3
8 years, 5 months
[PATCH] Fix typo preventing relocated space from being used for option roms.
by Kevin O'Connor
---
src/optionroms.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/src/optionroms.c b/src/optionroms.c
index f26a3aa..ceb4060 100644
--- a/src/optionroms.c
+++ b/src/optionroms.c
@@ -171,7 +171,7 @@ get_pci_rom(struct rom_header *rom)
// Return start of code in 0xc0000-0xf0000 space.
static inline u32 _max_rom(void) {
extern u8 code32flat_start[], code32init_end[];
- return CONFIG_RELOCATE_INIT ? (u32)code32flat_start : (u32)code32init_end;
+ return CONFIG_RELOCATE_INIT ? (u32)code32init_end : (u32)code32flat_start;
}
// Return the memory position up to which roms may be located.
static inline u32 max_rom(void) {
--
1.7.2.3
8 years, 5 months
Pending patch summary
by Kevin O'Connor
Patches pending:
Eduard - Gabriel Munteanu: 20100828:
iommu: introduce AMD IOMMU support, initialize it
* Likely for post v0.6.1 release
Isaku Yamahata: 20100722:
acpi: allow qemu to load dsdt as external acpi table.
* Needs resolution on acpi patches
Isaku Yamahata: 20100819:
seabios: acpi: add mcfg table.
* Needs resolution on acpi patches
Patches pending with author:
Isaku Yamahata: 20100726:
seabios: pciinit: fix overflow when bar allocation.
* Isaku was looking at another approach
Sebastian Herbszt: 20100731:
EDD fixes
* Initial patch looked like it may break backwards compatibility; I
haven't seen a new patch.
Patches not applied:
Arseny Klimovsky: 20100621:
Added ACPI SLIC table
* There was no explicit patch sent, and approach (eg, recompile
seabios) doesn't look scalable.
Eduardo Habkost: 20100618:
Allow acpi and smbios default strings to be set on config.h
* Should no longer be needed now that smbios strings can be passed
in via fwcfg.
Christopher Gautier: 20100723:
Impossible to distinguish between two '/' keys
* No explicit patch sent, and I didn't understand the description.
Gleb Natapov: 20100614:
load hpet info for HPET ACPI table from qemu
* Gleb withdrew this patch due to a bug. Concept is pending ACPI
resolution.
Please let me know if I've missed any thing.
-Kevin
8 years, 5 months
[PATCH 00/11] Relocate init code to high memory
by Kevin O'Connor
This patch series enables SeaBIOS to relocate itself out of the
e-segment, which enables that space to be used by optionroms.
Before this patch series, SeaBIOS would typically use about half of
the e-segment. A full debugging build could use nearly all of the
e-segment. With this series, SeaBIOS shouldn't need anything beyond
the standard f-segment. Future features can likely be added without
fear of limiting optionroms.
To support relocation, the build determines which parts of the 32bit
code is one-time initialization code. It separates that out and
stores relocation information for it. The run-time code can then copy
the initialization code to high memory and run it at that location.
The one-time init code could be called again on a soft-reboot, but
SeaBIOS now detects this case and attempts a hard-reboot.
Unfortunately, both qemu and kvm don't appear to have a reliable way
to hard-reboot - normal reboots don't reset the 0xc0000-0xfffff
memory. I've worked around this on qemu by manually resetting that
memory. However, kvm doesn't keep a pristine copy of the bios at
0xffff0000. Until this is fixed, this patch series will cause a
soft-reboot on kvm to result in a shutdown instead of a reboot.
Some details on the patches: Patches 1-4 enhance the build scripts.
Patches 5-7 handle soft-reboots. Patches 8-11 enhance the runtime to
support relocation.
-Kevin
Kevin O'Connor (11):
Use str.startswith() in python scripts.
Modify tools/layoutrom.py to use classes instead of tuples.
Separate out init code from the rest of the 32bit flat code.
Enhance build to emit relocation information.
Try to hard-reboot processor on rerun of post under coreboot.
Don't do shadow copying of optionroms when
CONFIG_OPTIONROMS_DEPLOYED.
Try to hard-reboot on rerun of post even on emulators.
Add memalign_tmp() helper function.
Move init code from _start() to post().
Move the 32bit init code to high memory at runtime.
Enable optionroms to use freed space due to CONFIG_RELOCATE_INIT.
Makefile | 6 +-
src/apm.c | 14 +-
src/config.h | 2 +
src/ioport.h | 1 +
src/optionroms.c | 18 ++-
src/pci.c | 10 +
src/pci.h | 1 +
src/pmm.c | 8 -
src/post.c | 164 +++++++++++++++---
src/ps2port.c | 16 ++-
src/ps2port.h | 3 +-
src/shadow.c | 40 +++--
src/stacks.c | 4 +-
src/types.h | 10 +-
src/util.h | 13 ++-
tools/checkrom.py | 9 +-
tools/checkstack.py | 14 +-
tools/layoutrom.py | 465 ++++++++++++++++++++++++++++++++-------------------
18 files changed, 535 insertions(+), 263 deletions(-)
--
1.7.2.3
8 years, 5 months
