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Pull request efi-2021-04-rc5-2

Browse source 
Bug fixes:
 
 * re-enable loading UEFI binaries via UART
 * fix a NULL dereference in EFI console
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Merge tag 'efi-2021-04-rc5-2' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2021-04-rc5-2

Bug fixes:

* re-enable loading UEFI binaries via UART
* fix a NULL dereference in EFI console
This commit is contained in:
Tom Rini 2021-03-20 08:55:18 -04:00
commit 1f9c3f13f6
5 changed files with 101 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
cmd/load.c
View file

@ -11,12 +11,14 @@
#include <command.h>
#include <console.h>
#include <cpu_func.h>
#include <efi_loader.h>
#include <env.h>
#include <exports.h>
#include <flash.h>
#include <image.h>
#include <s_record.h>
#include <mapmem.h>
#include <net.h>
#include <exports.h>
#include <s_record.h>
#include <serial.h>
#include <xyzModem.h>
#include <asm/cache.h>
@ -996,6 +998,10 @@ static ulong load_serial_ymodem(ulong offset, int mode)
}
}
if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
efi_set_bootdev("Uart", "", "",
map_sysmem(offset, 0), size);
} else {
printf("%s\n", xyzModem_error(err));
}

10
include/efi_api.h
View file

@ -523,6 +523,7 @@ struct efi_device_path_acpi_path {
# define DEVICE_PATH_SUB_TYPE_MSG_SCSI 0x02
# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
# define DEVICE_PATH_SUB_TYPE_MSG_UART 0x0e
# define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS 0x0f
# define DEVICE_PATH_SUB_TYPE_MSG_SATA 0x12
# define DEVICE_PATH_SUB_TYPE_MSG_NVME 0x17
@ -542,6 +543,15 @@ struct efi_device_path_scsi {
u16 logical_unit_number;
} __packed;
struct efi_device_path_uart {
struct efi_device_path dp;
u32 reserved;
u64 baud_rate;
u8 data_bits;
u8 parity;
u8 stop_bits;
} __packed;
struct efi_device_path_usb {
struct efi_device_path dp;
u8 parent_port_number;

51
lib/efi_loader/efi_console.c
View file

@ -254,7 +254,7 @@ static bool cout_mode_matches(struct cout_mode *mode, int rows, int cols)
}
/**
* query_console_serial() - query console size
* query_console_serial() - query serial console size
*
* When using a serial console or the net console we can only devise the
* terminal size by querying the terminal using ECMA-48 control sequences.
@ -299,6 +299,37 @@ out:
return ret;
}
/**
* query_vidconsole() - query video console size
*
*
* @rows: pointer to return number of rows
* @cols: pointer to return number of columns
* Returns: 0 on success
*/
static int __maybe_unused query_vidconsole(int *rows, int *cols)
{
const char *stdout_name = env_get("stdout");
struct stdio_dev *stdout_dev;
struct udevice *dev;
struct vidconsole_priv *priv;
if (!stdout_name || strncmp(stdout_name, "vidconsole", 10))
return -ENODEV;
stdout_dev = stdio_get_by_name("vidconsole");
if (!stdout_dev)
return -ENODEV;
dev = stdout_dev->priv;
if (!dev)
return -ENODEV;
priv = dev_get_uclass_priv(dev);
if (!priv)
return -ENODEV;
*rows = priv->rows;
*cols = priv->cols;
return 0;
}
/**
* query_console_size() - update the mode table.
*
@ -308,21 +339,15 @@ out:
*/
static void query_console_size(void)
{
const char *stdout_name = env_get("stdout");
int rows = 25, cols = 80;
int ret = -ENODEV;
if (stdout_name && !strncmp(stdout_name, "vidconsole", 10) &&
IS_ENABLED(CONFIG_DM_VIDEO)) {
struct stdio_dev *stdout_dev =
stdio_get_by_name("vidconsole");
struct udevice *dev = stdout_dev->priv;
struct vidconsole_priv *priv =
dev_get_uclass_priv(dev);
rows = priv->rows;
cols = priv->cols;
} else if (query_console_serial(&rows, &cols)) {
if IS_ENABLED(CONFIG_DM_VIDEO)
ret = query_vidconsole(&rows, &cols);
if (ret)
ret = query_console_serial(&rows, &cols);
if (ret)
return;
}
/* Test if we can have Mode 1 */
if (cols >= 80 && rows >= 50) {

41
lib/efi_loader/efi_device_path.c
View file

@ -960,6 +960,28 @@ struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
return start;
}
struct efi_device_path *efi_dp_from_uart(void)
{
void *buf, *pos;
struct efi_device_path_uart *uart;
size_t dpsize = sizeof(ROOT) + sizeof(*uart) + sizeof(END);
buf = dp_alloc(dpsize);
if (!buf)
return NULL;
pos = buf;
memcpy(pos, &ROOT, sizeof(ROOT));
pos += sizeof(ROOT);
uart = pos;
uart->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
uart->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_UART;
uart->dp.length = sizeof(*uart);
pos += sizeof(*uart);
memcpy(pos, &END, sizeof(END));
return buf;
}
#ifdef CONFIG_NET
struct efi_device_path *efi_dp_from_eth(void)
{
@ -1086,7 +1108,6 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
struct efi_device_path **device,
struct efi_device_path **file)
{
int is_net;
struct blk_desc *desc = NULL;
struct disk_partition fs_partition;
int part = 0;
@ -1096,8 +1117,15 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
if (path && !file)
return EFI_INVALID_PARAMETER;
is_net = !strcmp(dev, "Net");
if (!is_net) {
if (!strcmp(dev, "Net")) {
#ifdef CONFIG_NET
if (device)
*device = efi_dp_from_eth();
#endif
} else if (!strcmp(dev, "Uart")) {
if (device)
*device = efi_dp_from_uart();
} else {
part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition,
1);
if (part < 0 || !desc)
@ -1105,11 +1133,6 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
if (device)
*device = efi_dp_from_part(desc, part);
} else {
#ifdef CONFIG_NET
if (device)
*device = efi_dp_from_eth();
#endif
}
if (!path)
@ -1120,7 +1143,7 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
s = filename;
while ((s = strchr(s, '/')))
*s++ = '\\';
*file = efi_dp_from_file(is_net ? NULL : desc, part, filename);
*file = efi_dp_from_file(desc, part, filename);
if (!*file)
return EFI_INVALID_PARAMETER;

13
lib/efi_loader/efi_device_path_to_text.c
View file

@ -118,6 +118,19 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
ide->logical_unit_number);
break;
}
case DEVICE_PATH_SUB_TYPE_MSG_UART: {
struct efi_device_path_uart *uart =
(struct efi_device_path_uart *)dp;
s += sprintf(s, "Uart(%lld,%d,%d,", uart->baud_rate,
uart->data_bits, uart->parity);
switch (uart->stop_bits) {
case 2:
s += sprintf(s, "1.5)");
default:
s += sprintf(s, "%d)", uart->stop_bits);
}
break;
}
case DEVICE_PATH_SUB_TYPE_MSG_USB: {
struct efi_device_path_usb *udp =
(struct efi_device_path_usb *)dp;