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diff -r 4ea7c584151a tboot/common/e820.c
--- a/tboot/common/e820.c Tue Jan 13 11:29:14 2009 -0800
+++ b/tboot/common/e820.c Tue Jan 20 22:25:23 2009 -0800
@@ -623,6 +623,202 @@ bool get_ram_ranges(multiboot_info_t *mb
return true;
}
+#define RUN_CASE(caseid) \
+{ \
+ if ( caseid() ) \
+ printk("VALIDATE_E820_UNIT_TEST: " #caseid " passed\n"); \
+ else \
+ printk("VALIDATE_E820_UNIT_TEST: " #caseid " failed\n"); \
+}
+
+#define E820_ENTRY(s, e, t) \
+ { \
+ sizeof(memory_map_t)-sizeof(uint32_t), \
+ ((uint64_t)(s) & 0xffffffULL), \
+ ((uint64_t)(s) >> 32), \
+ (((uint64_t)(e) - (uint64_t)(s)) & 0xffffffffULL), \
+ (((uint64_t)(e) - (uint64_t)(s)) >> 32), \
+ (t) \
+ }
+
+static memory_map_t test_map[32] = {
+ E820_ENTRY(0x00000, 0x04000, E820_RAM),
+ E820_ENTRY(0x08000, 0x0c000, E820_RAM),
+ E820_ENTRY(0x10000, 0x14000, E820_RAM),
+ E820_ENTRY(0x18000, 0x1c000, E820_RAM),
+ E820_ENTRY(0x20000, 0x24000, E820_RAM),
+ E820_ENTRY(0x28000, 0x2c000, E820_RAM),
+ E820_ENTRY(0x30000, 0x34000, E820_RAM),
+ E820_ENTRY(0x38000, 0x3c000, E820_RAM),
+ E820_ENTRY(0x40000, 0x44000, E820_RAM),
+ E820_ENTRY(0x48000, 0x4c000, E820_RAM),
+ E820_ENTRY(0x50000, 0x54000, E820_RAM),
+ E820_ENTRY(0x58000, 0x5c000, E820_RAM),
+ E820_ENTRY(0x60000, 0x64000, E820_RAM),
+ E820_ENTRY(0x68000, 0x6c000, E820_RAM),
+ E820_ENTRY(0x70080, 0x74080, E820_RAM),
+ E820_ENTRY(0x78000, 0x7c000, E820_RAM),
+ E820_ENTRY(0x100000000ULL, 0x120000000ULL, E820_RAM),
+};
+static int nr_test_map = 17;
+
+#define UNIT_PROTECT_REG(s, e) \
+ printk("protecting 0x%Lx - 0x%Lx\n", (uint64_t)(s), (uint64_t)(e)); \
+ if ( !protect_region(test_map, &nr_test_map, (s), ((e) - (s)), \
+ E820_RESERVED) ) { \
+ printk("\tFAILED\n"); \
+ return false; \
+ }
+
+static bool verify_entry(int idx, uint64_t start, uint64_t end, uint32_t type)
+{
+ memory_map_t *entry = &test_map[idx];
+ uint64_t base = e820_base_64(entry);
+ uint64_t length = e820_length_64(entry);
+
+ if ( start == base && (end - start) == length && type == entry->type )
+ return true;
+ else
+ return false;
+}
+
+#define UNIT_VERIFY(idx, s, e, t) \
+ if ( !verify_entry(idx, s, e, t) ) { \
+ printk("verification of index %u failed\n", idx); \
+ return false; \
+ }
+
+
+static bool UNIT_PROT_01(void)
+{
+ /* reserve within gap space (e1---e1 r1---r1 e2---e2) */
+ UNIT_PROTECT_REG(0x05000, 0x06000);
+ UNIT_VERIFY(0, 0x0, 0x04000, E820_RAM);
+ UNIT_VERIFY(1, 0x05000, 0x06000, E820_RESERVED);
+ return true;
+}
+
+static bool UNIT_PROT_02(void)
+{
+ /* reserve partially overlapping beginning 1 (r1---e1+++r1---e1) */
+ UNIT_PROTECT_REG(0x07000, 0x0a000);
+ UNIT_VERIFY(2, 0x07000, 0x0a000, E820_RESERVED);
+ UNIT_VERIFY(3, 0x0a000, 0x0c000, E820_RAM);
+ return true;
+}
+
+static bool UNIT_PROT_03(void)
+{
+ /* reserve partially overlapping beginning 2 (r1---e1+++e1--e2+++r1--e2) */
+ UNIT_PROTECT_REG(0x0e000, 0x1a000);
+ UNIT_VERIFY(4, 0x0e000, 0x1a000, E820_RESERVED);
+ UNIT_VERIFY(5, 0x1a000, 0x1c000, E820_RAM);
+ return true;
+}
+
+static bool UNIT_PROT_04(void)
+{
+ /* reserve partially overlapping end 1 (e1---r1+++e1---r1) */
+ UNIT_PROTECT_REG(0x22000, 0x26000);
+ UNIT_VERIFY(6, 0x20000, 0x22000, E820_RAM);
+ UNIT_VERIFY(7, 0x22000, 0x26000, E820_RESERVED);
+ return true;
+}
+
+static bool UNIT_PROT_05(void)
+{
+ /* reserve partially overlapping end 2 (e1---r1+++e1---e2+++e2---r1) */
+ UNIT_PROTECT_REG(0x2a000, 0x36000);
+ UNIT_VERIFY(8, 0x28000, 0x2a000, E820_RAM);
+ UNIT_VERIFY(9, 0x2a000, 0x36000, E820_RESERVED);
+ return true;
+}
+
+static bool UNIT_PROT_06(void)
+{
+ /* reserve partially overlapping 2 (e1---r1+++e1---e2+++r1---e1) */
+ UNIT_PROTECT_REG(0x3a000, 0x42000);
+ UNIT_VERIFY(10, 0x38000, 0x3a000, E820_RAM);
+ UNIT_VERIFY(11, 0x3a000, 0x42000, E820_RESERVED);
+ UNIT_VERIFY(12, 0x42000, 0x44000, E820_RAM);
+ return true;
+}
+
+static bool UNIT_PROT_07(void)
+{
+ /* reserve fully containing 1 (r1---e1+++e1---r1) */
+ UNIT_PROTECT_REG(0x46000, 0x4e000);
+ UNIT_VERIFY(13, 0x46000, 0x4e000, E820_RESERVED);
+ return true;
+}
+
+static bool UNIT_PROT_08(void)
+{
+ /* reserve fully containing 2 (r1---e1+++e1-e2+++e2---r1) */
+ UNIT_PROTECT_REG(0x4e000, 0x5d000);
+ UNIT_VERIFY(14, 0x4e000, 0x5d000, E820_RESERVED);
+ return true;
+}
+
+static bool UNIT_PROT_09(void)
+{
+ /* reserve fully contained (e1---r1+++r1---e1) */
+ UNIT_PROTECT_REG(0x62000, 0x63000);
+ UNIT_VERIFY(15, 0x60000, 0x62000, E820_RAM);
+ UNIT_VERIFY(16, 0x62000, 0x63000, E820_RESERVED);
+ UNIT_VERIFY(17, 0x63000, 0x64000, E820_RAM);
+ return true;
+}
+
+static bool UNIT_PROT_10(void)
+{
+ /* reserve identical (e1r1+++e1r1) */
+ UNIT_PROTECT_REG(0x68000, 0x6c000);
+ UNIT_VERIFY(18, 0x68000, 0x6c000, E820_RESERVED);
+ return true;
+}
+
+static bool UNIT_PROT_11(void)
+{
+ /* reserve sub-page in sub-page range */
+ UNIT_PROTECT_REG(0x70040, 0x74040);
+ UNIT_VERIFY(19, 0x70040, 0x74040, E820_RESERVED);
+ UNIT_VERIFY(20, 0x74040, 0x74080, E820_RAM);
+ UNIT_VERIFY(21, 0x78000, 0x7c000, E820_RAM);
+ return true;
+}
+
+static bool UNIT_PROT_12(void)
+{
+ /* reserve in high memory (e1---r1+++r1---e1) */
+ UNIT_PROTECT_REG(0x100004000ULL, 0x100006000ULL);
+ UNIT_VERIFY(22, 0x100000000ULL, 0x100004000ULL, E820_RAM);
+ UNIT_VERIFY(23, 0x100004000ULL, 0x100006000ULL, E820_RESERVED);
+ UNIT_VERIFY(24, 0x100006000ULL, 0x120000000ULL, E820_RAM);
+ return true;
+}
+
+void unit_test_validate_e820(void)
+{
+ printk("test map before:\n");
+ print_map(test_map, nr_test_map);
+
+ RUN_CASE(UNIT_PROT_01);
+ RUN_CASE(UNIT_PROT_02);
+ RUN_CASE(UNIT_PROT_03);
+ RUN_CASE(UNIT_PROT_04);
+ RUN_CASE(UNIT_PROT_05);
+ RUN_CASE(UNIT_PROT_06);
+ RUN_CASE(UNIT_PROT_07);
+ RUN_CASE(UNIT_PROT_08);
+ RUN_CASE(UNIT_PROT_09);
+ RUN_CASE(UNIT_PROT_10);
+ RUN_CASE(UNIT_PROT_11);
+ RUN_CASE(UNIT_PROT_12);
+
+ printk("all e820 unit tests passed:\n");
+ print_map(test_map, nr_test_map);
+}
/*
* Local variables:
diff -r 4ea7c584151a tboot/common/tboot.c
--- a/tboot/common/tboot.c Tue Jan 13 11:29:14 2009 -0800
+++ b/tboot/common/tboot.c Tue Jan 20 22:25:23 2009 -0800
@@ -267,6 +267,9 @@ void begin_launch(multiboot_info_t *mbi)
printk("command line: %s\n", g_cmdline);
if ( s3_flag )
printk("resume from S3\n");
+
+ extern void unit_test_validate_e820(void);
+ unit_test_validate_e820();
/* we should only be executing on the BSP */
rdmsrl(MSR_IA32_APICBASE, apicbase);
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