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authorH. Peter Anvin <hpa@zytor.com>2010-02-06 22:54:06 -0800
committerH. Peter Anvin <hpa@zytor.com>2010-02-06 23:09:51 -0800
commiteb87986dff065af4acbede5abbbcde5ee39eae19 (patch)
tree2b98290af210452ba5a18bf2237f88b26208537d
parent6f19ff5ce811655353712647e82f0dee22805108 (diff)
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sysdump: add PCI config space dumping
Dump PCI configuration space. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
-rw-r--r--com32/sysdump/dmi.c1
-rw-r--r--com32/sysdump/main.c1
-rw-r--r--com32/sysdump/pci.c70
-rw-r--r--com32/sysdump/sysdump.h1
4 files changed, 72 insertions, 1 deletions
diff --git a/com32/sysdump/dmi.c b/com32/sysdump/dmi.c
index ad7c4523..a64e5c1e 100644
--- a/com32/sysdump/dmi.c
+++ b/com32/sysdump/dmi.c
@@ -5,7 +5,6 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
-#include <sys/cpu.h>
#include "sysdump.h"
#include "backend.h"
diff --git a/com32/sysdump/main.c b/com32/sysdump/main.c
index ffe3430c..f6aea9cf 100644
--- a/com32/sysdump/main.c
+++ b/com32/sysdump/main.c
@@ -37,6 +37,7 @@ static void dump_all(struct backend *be, const char *argv[], size_t len)
dump_memory(be);
dump_dmi(be);
+ dump_pci(be);
dump_vesa_tables(be);
cpio_close(be);
diff --git a/com32/sysdump/pci.c b/com32/sysdump/pci.c
new file mode 100644
index 00000000..debbbafe
--- /dev/null
+++ b/com32/sysdump/pci.c
@@ -0,0 +1,70 @@
+/*
+ * Dump PCI device headers
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/pci.h>
+#include "sysdump.h"
+#include "backend.h"
+
+static void dump_pci_device(struct backend *be, pciaddr_t a, uint8_t hdrtype)
+{
+ unsigned int bus = pci_bus(a);
+ unsigned int dev = pci_dev(a);
+ unsigned int func = pci_func(a);
+ uint8_t data[256];
+ unsigned int i;
+ char filename[32];
+
+ hdrtype &= 0x7f;
+
+ printf("Scanning PCI bus... %02x:%02x.%x\r", bus, dev, func);
+
+ /* Assume doing a full device dump is actually safe... */
+ for (i = 0; i < sizeof data; i += 4)
+ *(uint32_t *)(data+i) = pci_readl(a + i);
+
+ snprintf(filename, sizeof filename, "pci/%02x:%02x.%x",
+ bus, dev, func);
+ cpio_writefile(be, filename, data, sizeof data);
+}
+
+void dump_pci(struct backend *be)
+{
+ int cfgtype;
+ unsigned int nbus, ndev, nfunc, maxfunc;
+ pciaddr_t a;
+ uint32_t did;
+ uint8_t hdrtype;
+
+ cfgtype = pci_set_config_type(PCI_CFG_AUTO);
+ if (cfgtype == PCI_CFG_NONE)
+ return;
+
+ cpio_mkdir(be, "pci");
+
+ for (nbus = 0; nbus < MAX_PCI_BUSES; nbus++) {
+ for (ndev = 0; ndev < MAX_PCI_DEVICES; ndev++) {
+ maxfunc = 1; /* Assume a single-function device */
+
+ for (nfunc = 0; nfunc < maxfunc; nfunc++) {
+ a = pci_mkaddr(nbus, ndev, nfunc, 0);
+ did = pci_readl(a);
+
+ if (did == 0xffffffff || did == 0xffff0000 ||
+ did == 0x0000ffff || did == 0x00000000)
+ continue;
+
+ hdrtype = pci_readb(a + 0x0e);
+ if (hdrtype & 0x80)
+ maxfunc = MAX_PCI_FUNC; /* Multifunction device */
+
+ dump_pci_device(be, a, hdrtype);
+ }
+ }
+ }
+
+ printf("Scanning PCI bus... done \n");
+}
diff --git a/com32/sysdump/sysdump.h b/com32/sysdump/sysdump.h
index df9da311..4b58cf3f 100644
--- a/com32/sysdump/sysdump.h
+++ b/com32/sysdump/sysdump.h
@@ -5,6 +5,7 @@ struct backend;
void dump_memory(struct backend *);
void dump_dmi(struct backend *);
+void dump_pci(struct backend *);
void dump_vesa_tables(struct backend *);
#endif /* SYSDUMP_H */