[PATCH v2 0/5] x86: Updates to some commands

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[PATCH v2 0/5] x86: Updates to some commands

Simon Glass-3
This series adds a few more features to some x86-specific commands.

Changes in v2:
- Fix '93' typo
- Capitalise 'System'

Simon Glass (5):
  x86: hob: Add way to show a single hob entry
  x86: hob: Try to show a name instead of a GUID
  x86: Allow showing details about a HOB entry
  x86: Add support for more than 8 MTRRs
  x86: video: Show information about each video device

 arch/x86/cpu/mtrr.c                |  12 ++--
 arch/x86/include/asm/fsp/fsp_hob.h |  25 ++++++++
 arch/x86/include/asm/mtrr.h        |  15 ++++-
 cmd/bdinfo.c                       |  26 +++++++-
 cmd/x86/hob.c                      | 100 +++++++++++++++++++++++++++--
 cmd/x86/mtrr.c                     |   9 +--
 6 files changed, 167 insertions(+), 20 deletions(-)

--
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[PATCH v2 1/5] x86: hob: Add way to show a single hob entry

Simon Glass-3
The 'hob' command currently lists all HOB entries. Add way to list a
single entry, by index.

Signed-off-by: Simon Glass <[hidden email]>
Reviewed-by: Bin Meng <[hidden email]>
---

(no changes since v1)

 cmd/x86/hob.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/cmd/x86/hob.c b/cmd/x86/hob.c
index 6b1f7bda5b8..e3f512beee8 100644
--- a/cmd/x86/hob.c
+++ b/cmd/x86/hob.c
@@ -34,7 +34,12 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  int i = 0;
  efi_guid_t *guid;
  char uuid[UUID_STR_LEN + 1];
+ int seq = -1; /* Show all by default */
 
+ argc--;
+ argv++;
+ if (argc)
+ seq = simple_strtol(*argv, NULL, 16);
  hdr = gd->arch.hob_list;
 
  printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
@@ -43,7 +48,9 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  printf("%36s\n", "GUID");
  printf("---|----------|-----------|------|-");
  printf("------------------------------------\n");
- while (!end_of_hob(hdr)) {
+ for (i = 0; !end_of_hob(hdr); i++, hdr = get_next_hob(hdr)) {
+ if (seq != -1 && seq != i)
+ continue;
  printf("%02x | %08x | ", i, (unsigned int)hdr);
  type = hdr->type;
  if (type == HOB_TYPE_UNUSED)
@@ -65,14 +72,13 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  printf("%36s", "Not Available");
  }
  printf("\n");
- hdr = get_next_hob(hdr);
- i++;
  }
 
  return 0;
 }
 
-U_BOOT_CMD(hob, 1, 1, do_hob,
-   "Print Hand-Off Block (HOB) information",
+U_BOOT_CMD(hob, 2, 1, do_hob,
+   "[seq]  Print Hand-Off Block (HOB) information"
+   "   seq - Record # to show (all by default)",
    ""
 );
--
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[PATCH v2 2/5] x86: hob: Try to show a name instead of a GUID

Simon Glass-3
In reply to this post by Simon Glass-3
GUIDs are one of the seven evils of the computer world. They obfuscate the
meaning and require people to look up long hex strings to decode it.

Luckily only a miniscule fraction of the 10^38 possible GUIDs are in use.

Add a way to decode the GUIDs known to U-Boot. Add a few more to the list
for good measure.

Signed-off-by: Simon Glass <[hidden email]>
Reviewed-by: Bin Meng <[hidden email]>
---

Changes in v2:
- Fix '93' typo

 arch/x86/include/asm/fsp/fsp_hob.h | 25 +++++++++++++++++
 cmd/x86/hob.c                      | 43 ++++++++++++++++++++++++++++--
 2 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/fsp/fsp_hob.h b/arch/x86/include/asm/fsp/fsp_hob.h
index d248520e972..ea3983e04ff 100644
--- a/arch/x86/include/asm/fsp/fsp_hob.h
+++ b/arch/x86/include/asm/fsp/fsp_hob.h
@@ -99,4 +99,29 @@ struct __packed hob_graphics_info {
  EFI_GUID(0x39f62cce, 0x6825, 0x4669, \
  0xbb, 0x56, 0x54, 0x1a, 0xba, 0x75, 0x3a, 0x07)
 
+/* The following GUIDs are observed with FSP 2.1 / Apollo Lake */
+#define FSP_HOB_RESOURCE_OWNER_SMM_PEI_SMRAM_GUID \
+ EFI_GUID(0x6dadf1d1, 0xd4cc, 0x4910, \
+ 0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d)
+
+#define FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID1 \
+ EFI_GUID(0xea296d92, 0x0b69, 0x423c, \
+ 0x8c, 0x28, 0x33, 0xb4, 0xe0, 0xa9, 0x12, 0x68)
+
+#define FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID2 \
+ EFI_GUID(0x9b3ada4f, 0xae56, 0x4c24, \
+ 0x8d, 0xea, 0xf0, 0x3b, 0x75, 0x58, 0xae, 0x50)
+
+#define FSP_HOB_RESOURCE_OWNER_PEIM_DXE_GUID \
+ EFI_GUID(0x86d70125, 0xbaa3, 0x4296, \
+ 0xa6, 0x2f, 0x60, 0x2b, 0xeb, 0xbb, 0x90, 0x81)
+
+#define FSP_HOB_RESOURCE_OWNER_ALLOC_STACK_GUID \
+ EFI_GUID(0x4ed4bf27, 0x4092, 0x42e9, \
+ 0x80, 0x7d, 0x52, 0x7b, 0x1d, 0x00, 0xc9, 0xbd)
+
+#define FSP_HOB_RESOURCE_OWNER_SMBIOS_MEMORY_GUID \
+ EFI_GUID(0x01a1108c, 0x9dee, 0x4984, \
+ 0x88, 0xc3, 0xee, 0xe8, 0xc4, 0x9e, 0xfb, 0x89)
+
 #endif
diff --git a/cmd/x86/hob.c b/cmd/x86/hob.c
index e3f512beee8..98a67600086 100644
--- a/cmd/x86/hob.c
+++ b/cmd/x86/hob.c
@@ -8,6 +8,7 @@
 #include <efi.h>
 #include <uuid.h>
 #include <asm/hob.h>
+#include <asm/fsp/fsp_hob.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -26,6 +27,37 @@ static char *hob_type[] = {
  "Capsule",
 };
 
+static struct guid_name {
+ efi_guid_t guid;
+ const char *name;
+} guid_name[] = {
+ { FSP_HOB_RESOURCE_OWNER_TSEG_GUID, "TSEG" },
+ { FSP_HOB_RESOURCE_OWNER_FSP_GUID, "FSP" },
+ { FSP_HOB_RESOURCE_OWNER_SMM_PEI_SMRAM_GUID, "SMM PEI SMRAM" },
+ { FSP_NON_VOLATILE_STORAGE_HOB_GUID, "NVS" },
+ { FSP_VARIABLE_NV_DATA_HOB_GUID, "Variable NVS" },
+ { FSP_GRAPHICS_INFO_HOB_GUID, "Graphics info" },
+ { FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID1, "PCD database ea" },
+ { FSP_HOB_RESOURCE_OWNER_PCD_DATABASE_GUID2, "PCD database 9b" },
+ { FSP_HOB_RESOURCE_OWNER_PEIM_DXE_GUID, "PEIM Init DXE" },
+ { FSP_HOB_RESOURCE_OWNER_ALLOC_STACK_GUID, "Alloc stack" },
+ { FSP_HOB_RESOURCE_OWNER_SMBIOS_MEMORY_GUID, "SMBIOS memory" },
+ { {}, "zero-guid" },
+ {}
+};
+
+static const char *guid_to_name(const efi_guid_t *guid)
+{
+ struct guid_name *entry;
+
+ for (entry = guid_name; entry->name; entry++) {
+ if (!guidcmp(guid, &entry->guid))
+ return entry->name;
+ }
+
+ return NULL;
+}
+
 static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
  const struct hob_header *hdr;
@@ -65,9 +97,16 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 
  if (type == HOB_TYPE_MEM_ALLOC || type == HOB_TYPE_RES_DESC ||
     type == HOB_TYPE_GUID_EXT) {
+ const char *name;
+
  guid = (efi_guid_t *)(hdr + 1);
- uuid_bin_to_str(guid->b, uuid, UUID_STR_FORMAT_GUID);
- printf("%s", uuid);
+ name = guid_to_name(guid);
+ if (!name) {
+ uuid_bin_to_str(guid->b, uuid,
+ UUID_STR_FORMAT_GUID);
+ name = uuid;
+ }
+ printf("%36s", name);
  } else {
  printf("%36s", "Not Available");
  }
--
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[PATCH v2 3/5] x86: Allow showing details about a HOB entry

Simon Glass-3
In reply to this post by Simon Glass-3
Some HOBs include information that can be decoded. Add a -v option to the
hob command, to allow this to be displayed. Add the ability to decode a
resource descriptor.

Signed-off-by: Simon Glass <[hidden email]>
Reviewed-by: Bin Meng <[hidden email]>
---

Changes in v2:
- Capitalise 'System'

 cmd/x86/hob.c | 49 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 45 insertions(+), 4 deletions(-)

diff --git a/cmd/x86/hob.c b/cmd/x86/hob.c
index 98a67600086..9e555c778c2 100644
--- a/cmd/x86/hob.c
+++ b/cmd/x86/hob.c
@@ -27,6 +27,16 @@ static char *hob_type[] = {
  "Capsule",
 };
 
+static char *res_type[] = {
+ "System",
+ "Memory-mapped I/O",
+ "I/O",
+ "Firmware device",
+ "Memory-mapped I/O port",
+ "Reserved",
+ "I/O reserved",
+};
+
 static struct guid_name {
  efi_guid_t guid;
  const char *name;
@@ -58,6 +68,26 @@ static const char *guid_to_name(const efi_guid_t *guid)
  return NULL;
 }
 
+static void show_hob_details(const struct hob_header *hdr)
+{
+ const void *ptr = hdr;
+
+ switch (hdr->type) {
+ case HOB_TYPE_RES_DESC: {
+ const struct hob_res_desc *res = ptr;
+ const char *typename;
+
+ typename = res->type > 0 && res->type <= RES_MAX_MEM_TYPE ?
+ res_type[res->type] : "unknown";
+
+ printf("     base = %08llx, len = %08llx, end = %08llx, type = %d (%s)\n\n",
+       res->phys_start, res->len, res->phys_start + res->len,
+       res->type, typename);
+ break;
+ }
+ }
+}
+
 static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
  const struct hob_header *hdr;
@@ -66,12 +96,20 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  int i = 0;
  efi_guid_t *guid;
  char uuid[UUID_STR_LEN + 1];
+ bool verbose = false;
  int seq = -1; /* Show all by default */
 
  argc--;
  argv++;
- if (argc)
- seq = simple_strtol(*argv, NULL, 16);
+ if (argc) {
+ if (!strcmp("-v", *argv)) {
+ verbose = true;
+ argc--;
+ argv++;
+ }
+ if (argc)
+ seq = simple_strtol(*argv, NULL, 16);
+ }
  hdr = gd->arch.hob_list;
 
  printf("HOB list address: 0x%08x\n\n", (unsigned int)hdr);
@@ -111,13 +149,16 @@ static int do_hob(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  printf("%36s", "Not Available");
  }
  printf("\n");
+ if (verbose)
+ show_hob_details(hdr);
  }
 
  return 0;
 }
 
-U_BOOT_CMD(hob, 2, 1, do_hob,
-   "[seq]  Print Hand-Off Block (HOB) information"
+U_BOOT_CMD(hob, 3, 1, do_hob,
+   "[-v] [seq]  Print Hand-Off Block (HOB) information"
+   "   -v  - Show detailed HOB information where available"
    "   seq - Record # to show (all by default)",
    ""
 );
--
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[PATCH v2 4/5] x86: Add support for more than 8 MTRRs

Simon Glass-3
In reply to this post by Simon Glass-3
At present the mtrr command only support 8 MTRRs. Some SoCs have more than
that. Update the implementation to support up to 10. Read the number of
MTRRs dynamically instead.

Signed-off-by: Simon Glass <[hidden email]>
Reviewed-by: Bin Meng <[hidden email]>
---

(no changes since v1)

 arch/x86/cpu/mtrr.c         | 12 +++++++-----
 arch/x86/include/asm/mtrr.h | 15 ++++++++++++---
 cmd/x86/mtrr.c              |  9 +++++----
 3 files changed, 24 insertions(+), 12 deletions(-)

diff --git a/arch/x86/cpu/mtrr.c b/arch/x86/cpu/mtrr.c
index 2468d88a80a..aed4c411367 100644
--- a/arch/x86/cpu/mtrr.c
+++ b/arch/x86/cpu/mtrr.c
@@ -66,9 +66,10 @@ static void set_var_mtrr(uint reg, uint type, uint64_t start, uint64_t size)
 
 void mtrr_read_all(struct mtrr_info *info)
 {
+ int reg_count = mtrr_get_var_count();
  int i;
 
- for (i = 0; i < MTRR_COUNT; i++) {
+ for (i = 0; i < reg_count; i++) {
  info->mtrr[i].base = native_read_msr(MTRR_PHYS_BASE_MSR(i));
  info->mtrr[i].mask = native_read_msr(MTRR_PHYS_MASK_MSR(i));
  }
@@ -76,10 +77,11 @@ void mtrr_read_all(struct mtrr_info *info)
 
 void mtrr_write_all(struct mtrr_info *info)
 {
+ int reg_count = mtrr_get_var_count();
  struct mtrr_state state;
  int i;
 
- for (i = 0; i < MTRR_COUNT; i++) {
+ for (i = 0; i < reg_count; i++) {
  mtrr_open(&state, true);
  wrmsrl(MTRR_PHYS_BASE_MSR(i), info->mtrr[i].base);
  wrmsrl(MTRR_PHYS_MASK_MSR(i), info->mtrr[i].mask);
@@ -144,7 +146,7 @@ int mtrr_commit(bool do_caches)
 
  /* Clear the ones that are unused */
  debug("clear\n");
- for (; i < MTRR_COUNT; i++)
+ for (; i < MTRR_MAX_COUNT; i++)
  wrmsrl(MTRR_PHYS_MASK_MSR(i), 0);
  debug("close\n");
  mtrr_close(&state, do_caches);
@@ -184,7 +186,7 @@ int mtrr_add_request(int type, uint64_t start, uint64_t size)
  return 0;
 }
 
-static int get_var_mtrr_count(void)
+int mtrr_get_var_count(void)
 {
  return msr_read(MSR_MTRR_CAP_MSR).lo & MSR_MTRR_CAP_VCNT;
 }
@@ -195,7 +197,7 @@ static int get_free_var_mtrr(void)
  int vcnt;
  int i;
 
- vcnt = get_var_mtrr_count();
+ vcnt = mtrr_get_var_count();
 
  /* Identify the first var mtrr which is not valid */
  for (i = 0; i < vcnt; i++) {
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h
index 48db1dd82f7..3a98aacdef5 100644
--- a/arch/x86/include/asm/mtrr.h
+++ b/arch/x86/include/asm/mtrr.h
@@ -36,8 +36,8 @@
 
 #define MTRR_BASE_TYPE_MASK 0x7
 
-/* Number of MTRRs supported */
-#define MTRR_COUNT 8
+/* Maximum number of MTRRs supported - see also mtrr_get_var_count() */
+#define MTRR_MAX_COUNT 10
 
 #define NUM_FIXED_MTRRS 11
 #define RANGES_PER_FIXED_MTRR 8
@@ -87,7 +87,7 @@ struct mtrr {
  * @mtrr: Information about each mtrr
  */
 struct mtrr_info {
- struct mtrr mtrr[MTRR_COUNT];
+ struct mtrr mtrr[MTRR_MAX_COUNT];
 };
 
 /**
@@ -180,6 +180,15 @@ int mtrr_set_valid(int cpu_select, int reg, bool valid);
  */
 int mtrr_set(int cpu_select, int reg, u64 base, u64 mask);
 
+/**
+ * mtrr_get_var_count() - Get the number of variable MTRRs
+ *
+ * Some CPUs have more than 8 MTRRs. This function returns the actual number
+ *
+ * @return number of variable MTRRs
+ */
+int mtrr_get_var_count(void);
+
 #endif
 
 #if ((CONFIG_XIP_ROM_SIZE & (CONFIG_XIP_ROM_SIZE - 1)) != 0)
diff --git a/cmd/x86/mtrr.c b/cmd/x86/mtrr.c
index 99efecb9d8e..fc61a549b02 100644
--- a/cmd/x86/mtrr.c
+++ b/cmd/x86/mtrr.c
@@ -27,7 +27,7 @@ static void read_mtrrs(void *arg)
  mtrr_read_all(info);
 }
 
-static int do_mtrr_list(int cpu_select)
+static int do_mtrr_list(int reg_count, int cpu_select)
 {
  struct mtrr_info info;
  int ret;
@@ -39,7 +39,7 @@ static int do_mtrr_list(int cpu_select)
  ret = mp_run_on_cpus(cpu_select, read_mtrrs, &info);
  if (ret)
  return log_msg_ret("run", ret);
- for (i = 0; i < MTRR_COUNT; i++) {
+ for (i = 0; i < reg_count; i++) {
  const char *type = "Invalid";
  uint64_t base, mask, size;
  bool valid;
@@ -98,6 +98,7 @@ static int do_mtrr_set(int cpu_select, uint reg, int argc, char *const argv[])
 static int do_mtrr(struct cmd_tbl *cmdtp, int flag, int argc,
    char *const argv[])
 {
+ int reg_count = mtrr_get_var_count();
  int cmd;
  int cpu_select;
  uint reg;
@@ -126,7 +127,7 @@ static int do_mtrr(struct cmd_tbl *cmdtp, int flag, int argc,
  if (argc < 2)
  return CMD_RET_USAGE;
  reg = simple_strtoul(argv[1], NULL, 16);
- if (reg >= MTRR_COUNT) {
+ if (reg >= reg_count) {
  printf("Invalid register number\n");
  return CMD_RET_USAGE;
  }
@@ -145,7 +146,7 @@ static int do_mtrr(struct cmd_tbl *cmdtp, int flag, int argc,
  if (!first)
  printf("\n");
  printf("CPU %d:\n", i);
- ret = do_mtrr_list(i);
+ ret = do_mtrr_list(reg_count, i);
  if (ret) {
  printf("Failed to read CPU %d (err=%d)\n", i,
        ret);
--
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[PATCH v2 5/5] x86: video: Show information about each video device

Simon Glass-3
In reply to this post by Simon Glass-3
At present the 'bdinfo' command shows the framebuffer address, but not the
address of the copy framebuffer, if present. Add support for this.

Signed-off-by: Simon Glass <[hidden email]>
Reviewed-by: Bin Meng <[hidden email]>
---

(no changes since v1)

 cmd/bdinfo.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/cmd/bdinfo.c b/cmd/bdinfo.c
index 9593b345a3d..2d88eb18ba7 100644
--- a/cmd/bdinfo.c
+++ b/cmd/bdinfo.c
@@ -8,9 +8,11 @@
 
 #include <common.h>
 #include <command.h>
+#include <dm.h>
 #include <env.h>
 #include <lmb.h>
 #include <net.h>
+#include <video.h>
 #include <vsprintf.h>
 #include <asm/cache.h>
 
@@ -66,6 +68,26 @@ __weak void arch_print_bdinfo(void)
 {
 }
 
+static void show_video_info(void)
+{
+ const struct udevice *dev;
+ struct uclass *uc;
+
+ uclass_id_foreach_dev(UCLASS_VIDEO, dev, uc) {
+ printf("%-12s= %s %sactive\n", "Video", dev->name,
+       device_active(dev) ? "" : "in");
+ if (device_active(dev)) {
+ struct video_priv *upriv = dev_get_uclass_priv(dev);
+
+ print_phys_addr("FB base", (ulong)upriv->fb);
+ if (upriv->copy_fb)
+ print_phys_addr("FB copy", (ulong)upriv->copy_fb);
+ printf("%-12s= %dx%dx%d\n", "FB size", upriv->xsize,
+       upriv->ysize, 1 << upriv->bpix);
+ }
+ }
+}
+
 int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
  struct bd_info *bd = gd->bd;
@@ -96,7 +118,9 @@ int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  bdinfo_print_num("fdt_blob", (ulong)gd->fdt_blob);
  bdinfo_print_num("new_fdt", (ulong)gd->new_fdt);
  bdinfo_print_num("fdt_size", (ulong)gd->fdt_size);
-#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) || defined(CONFIG_DM_VIDEO)
+ if (IS_ENABLED(CONFIG_DM_VIDEO))
+ show_video_info();
+#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
  bdinfo_print_num("FB base  ", gd->fb_base);
 #endif
 #if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
--
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Re: [PATCH v2 5/5] x86: video: Show information about each video device

Simon Glass-3
Hi Bin,

On Tue, 22 Sep 2020 at 14:55, Simon Glass <[hidden email]> wrote:

>
> At present the 'bdinfo' command shows the framebuffer address, but not the
> address of the copy framebuffer, if present. Add support for this.
>
> Signed-off-by: Simon Glass <[hidden email]>
> Reviewed-by: Bin Meng <[hidden email]>
> ---
>
> (no changes since v1)
>
>  cmd/bdinfo.c | 26 +++++++++++++++++++++++++-
>  1 file changed, 25 insertions(+), 1 deletion(-)
>

This one breaks with other archs so I sent v3.

Regards,
Simon
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Re: [PATCH v2 0/5] x86: Updates to some commands

Bin Meng-2
In reply to this post by Simon Glass-3
On Wed, Sep 23, 2020 at 4:54 AM Simon Glass <[hidden email]> wrote:

>
> This series adds a few more features to some x86-specific commands.
>
> Changes in v2:
> - Fix '93' typo
> - Capitalise 'System'
>
> Simon Glass (5):
>   x86: hob: Add way to show a single hob entry
>   x86: hob: Try to show a name instead of a GUID
>   x86: Allow showing details about a HOB entry
>   x86: Add support for more than 8 MTRRs
>   x86: video: Show information about each video device
>
>  arch/x86/cpu/mtrr.c                |  12 ++--
>  arch/x86/include/asm/fsp/fsp_hob.h |  25 ++++++++
>  arch/x86/include/asm/mtrr.h        |  15 ++++-
>  cmd/bdinfo.c                       |  26 +++++++-
>  cmd/x86/hob.c                      | 100 +++++++++++++++++++++++++++--
>  cmd/x86/mtrr.c                     |   9 +--
>  6 files changed, 167 insertions(+), 20 deletions(-)
>
> --

applied to u-boot-x86/next, thanks!